HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from St. Louis (STL) to London (LON) from $359

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — LON
มิ.ย. 7 — มิ.ย. 141
From?
To?
ศ. 6/7
ศ. 6/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Lambert-St Louis to London are usually found in February or April, booked 9 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from St. Louis to London

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated มิถุนายน 2, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$643

One-way from

$507
High demand for flights, 37% potential price rise
Search Deals
Best time to find cheap flights, 23% potential price drop
Search Deals
From Lambert-St Louis to London (LON)
Search Deals
One-way flight from Lambert-St Louis to London (LON)
Search Deals

What is the cheapest day to fly round-trip from St. Louis to London?

Monday flights are generally found to be more expensive for flights from St. Louis to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

How far in advance should I book a flight from St. Louis to London?

Travelers have found it’s best to book a flight 10 days in advance to save up to 50% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 10 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to London 1-2 weeks in advance for as low as $586, or $938 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to London?

Flights from St. Louis to London lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to London in February, with the cheapest ticket starting at $628.

What is the cheapest time of day to fly from STL to LON?

It’s optimal to fly from St. Louis to London in the afternoon. By choosing this option you can save up to 5% on the cost of your flight, compared to a flight in the evening.

Cheap Air Canada flights from St. Louis to London

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.
Peruse some of the lowest-priced Air Canada flights we've found from St. Louis to London. Deals update often to give you more flight options matching your criteria
พ. 8/710:10 amSTL - LHR
2 stops17h 50mAir Canada
อา. 8/119:30 amLHR - STL
2 stops35h 51mAir Canada
Deal found 6/1$821
พ. 8/2810:10 amSTL - LHR
2 stops14h 20mAir Canada
พฤ. 9/128:30 amLHR - STL
2 stops18h 35mAir Canada
Deal found 6/1$831
พฤ. 8/2910:10 amSTL - LHR
1 stop14h 25mAir Canada
ส. 9/1412:05 pmLHR - STL
1 stop15h 00mAir Canada
Deal found 6/1$844
อ. 6/259:50 amSTL - LHR
1 stop14h 40mAir Canada
พ. 7/38:30 amLHR - STL
1 stop12h 51mAir Canada
Deal found 6/1$848
จ. 6/105:31 pmSTL - LHR
2 stops31h 04mAir Canada
พ. 6/269:30 amLHR - STL
2 stops36h 10mAir Canada
Deal found 6/1$877
อ. 7/911:30 amSTL - LHR
1 stop13h 00mAir Canada
อ. 8/66:00 pmLHR - STL
1 stop32h 01mAir Canada
Deal found 6/1$881
พ. 6/2611:00 amSTL - LHR
1 stop15h 35mAir Canada
อา. 6/309:30 amLHR - STL
2 stops16h 31mAir Canada
Deal found 6/1$903
ส. 7/1311:30 amSTL - LHR
1 stop13h 00mAir Canada
อ. 8/66:00 pmLHR - STL
1 stop32h 01mAir Canada
Deal found 6/1$931
อ. 7/94:05 pmSTL - LHR
1 stop11h 30mAir Canada
พ. 7/248:30 amLHR - STL
1 stop12h 51mAir Canada
Deal found 6/1$1,041

Cheap United Airlines flights from St. Louis to London

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from St. Louis to London. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
จ. 6/101:42 pmSTL - LHR
1 stop13h 58mUnited Airlines
อ. 6/186:50 amLHR - STL
2 stops20h 54mUnited Airlines
Deal found 6/1$778
จ. 6/105:25 pmSTL - LHR
1 stop10h 45mUnited Airlines
อ. 6/188:30 amLHR - STL
1 stop17h 31mUnited Airlines
Deal found 6/1$783
ส. 6/84:45 pmSTL - LHR
1 stop34h 55mUnited Airlines
พ. 6/191:05 pmLHR - STL
1 stop14h 42mUnited Airlines
Deal found 6/1$794
พ. 6/511:38 amSTL - LHR
1 stop18h 07mUnited Airlines
จ. 6/176:50 amLHR - STL
2 stops18h 29mUnited Airlines
Deal found 6/1$828
พฤ. 6/1311:15 amSTL - LHR
1 stop18h 20mUnited Airlines
พฤ. 6/208:30 amLHR - STL
1 stop12h 51mUnited Airlines
Deal found 6/1$833
พ. 6/51:42 pmSTL - LHR
1 stop13h 58mUnited Airlines
จ. 6/1711:05 amLHR - STL
1 stop15h 44mUnited Airlines
Deal found 6/1$837
อ. 7/25:30 pmSTL - LHR
1 stop12h 15mUnited Airlines
พ. 7/103:50 pmLHR - STL
2 stops28h 28mUnited Airlines
Deal found 6/1$840
พ. 6/51:42 pmSTL - LHR
1 stop13h 58mUnited Airlines
จ. 6/104:40 pmLHR - STL
2 stops25h 33mUnited Airlines
Deal found 6/1$842
จ. 7/221:10 pmSTL - LHR
1 stop10h 45mUnited Airlines
จ. 8/512:15 pmLHR - STL
1 stop27h 07mUnited Airlines
Deal found 6/1$845

Cheap St. Louis to London flights in June & July 2024

Find cheap flight options from St. Louis to London specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on มิถุนายน 2, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. More deals are always being added, so be sure to check back regularly.
พ. 6/51:42 pmSTL - LHR
1 stop13h 58mMultiple Airlines
พ. 6/122:05 pmLHR - STL
1 stop13h 00mMultiple Airlines
Deal found 6/1$777
พ. 6/51:42 pmSTL - LHR
1 stop13h 58mMultiple Airlines
พ. 6/122:05 pmLHR - STL
1 stop13h 00mMultiple Airlines
Deal found 5/31$778
พ. 6/59:05 amSTL - LHR
1 stop18h 35mUnited Airlines
พ. 6/126:50 amLHR - STL
2 stops20h 54mUnited Airlines
Deal found 5/31$779
พ. 6/127:15 amSTL - LHR
1 stop17h 10mDelta
พ. 6/196:15 amLHR - STL
2 stops16h 46mDelta
Deal found 5/31$780
จ. 6/105:25 pmSTL - LHR
1 stop10h 45mUnited Airlines
อ. 6/188:30 amLHR - STL
1 stop17h 31mUnited Airlines
Deal found 6/1$783
พ. 6/1211:25 amSTL - LHR
2 stops16h 50mDelta
พ. 6/1911:30 amLHR - STL
2 stops18h 13mDelta
Deal found 5/31$785
พ. 6/1211:25 amSTL - LHR
1 stop13h 20mKLM
พ. 6/193:55 pmLHR - STL
1 stop13h 48mKLM
Deal found 5/31$788
ส. 6/84:45 pmSTL - LHR
1 stop34h 55mUnited Airlines
พ. 6/191:05 pmLHR - STL
1 stop14h 42mUnited Airlines
Deal found 6/1$794
พ. 6/511:38 amSTL - LHR
1 stop18h 07mUnited Airlines
จ. 6/176:50 amLHR - STL
2 stops18h 29mUnited Airlines
Deal found 6/1$828

St. Louis to London 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. More deals are always being added, so be sure to check back regularly.
อ. 9/102:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
อ. 9/1712:00 pmLGW - STL
1 stop28h 46mMultiple Airlines
Deal found 6/1$468
อ. 10/12:35 pmSTL - LGW
1 stop13h 25mMultiple Airlines
อ. 10/1512:00 pmLGW - STL
1 stop28h 46mMultiple Airlines
Deal found 6/1$538
พ. 9/184:31 pmSTL - LGW
1 stop35h 29mMultiple Airlines
พ. 9/252:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 5/31$589
จ. 9/99:20 pmSTL - LGW
1 stop30h 40mMultiple Airlines
จ. 9/162:00 pmLGW - STL
1 stop14h 14mMultiple Airlines
Deal found 6/1$609
พ. 9/2512:49 pmSTL - LGW
2 stops15h 11mDelta
อ. 10/112:00 pmLGW - STL
2 stops14h 37mDelta
Deal found 6/1$615
พ. 10/911:05 amSTL - LHR
1 stop14h 35mUnited Airlines
พ. 10/239:30 amLHR - STL
2 stops30h 37mUnited Airlines
Deal found 6/1$625
พ. 9/256:02 amSTL - LHR
2 stops18h 28mUnited Airlines
อ. 10/82:05 pmLHR - STL
2 stops30h 43mUnited Airlines
Deal found 5/31$626
อา. 12/15:37 pmSTL - LHR
1 stop11h 38mUnited Airlines
ศ. 1/313:00 pmLHR - STL
2 stops25h 27mUnited Airlines
Deal found 5/31$631
พ. 9/256:15 amSTL - LHR
1 stop23h 20mMultiple Airlines
อ. 10/86:00 pmLHR - STL
1 stop27h 20mMultiple Airlines
Deal found 5/31$632

St. Louis to London flights leaving soon

Find last-minute flight options from St. Louis to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to London. Tip: verify your flight details before completing your reservation.
จ. 6/101:42 pmSTL - LHR
1 stop13h 58mUnited Airlines
อ. 6/186:50 amLHR - STL
2 stops20h 54mUnited Airlines
Deal found 6/1$778
จ. 6/105:25 pmSTL - LHR
1 stop10h 45mUnited Airlines
อ. 6/188:30 amLHR - STL
1 stop17h 31mUnited Airlines
Deal found 6/1$783
ส. 6/84:45 pmSTL - LHR
1 stop34h 55mUnited Airlines
พ. 6/191:05 pmLHR - STL
1 stop14h 42mUnited Airlines
Deal found 6/1$794
ส. 6/87:15 amSTL - LHR
1 stop17h 10mDelta
พ. 6/196:15 amLHR - STL
2 stops16h 46mDelta
Deal found 5/31$830
ส. 6/811:25 amSTL - LHR
2 stops16h 50mDelta
พ. 6/1911:30 amLHR - STL
2 stops18h 13mDelta
Deal found 5/31$835
ส. 6/87:15 amSTL - LHR
1 stop17h 10mDelta
พ. 6/1911:35 amLHR - STL
1 stop13h 44mDelta
Deal found 5/31$838
จ. 6/105:25 pmSTL - LHR
1 stop11h 45mUnited Airlines
พ. 6/268:30 amLHR - STL
1 stop17h 12mUnited Airlines
Deal found 5/31$846
จ. 6/105:25 pmSTL - LHR
1 stop10h 45mUnited Airlines
พ. 6/269:30 amLHR - STL
1 stop12h 28mUnited Airlines
Deal found 6/1$849
จ. 6/1011:25 amSTL - LHR
1 stop13h 20mDelta
พ. 6/2611:30 amLHR - STL
2 stops16h 25mDelta
Deal found 5/31$850

One-way flights to London from St. Louis

Search for one-way flight options from St. Louis to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to London. Those needing a return flight from St. Louis to London can use the search form above.
จ. 8/199:20 pmSTL - STN
3 stops38h 40mMultiple Airlines
Deal found 5/31$359
อ. 8/2012:15 pmSTL - LHR
3 stops26h 05mMultiple Airlines
Deal found 6/1$393
พ. 7/108:02 pmSTL - LGW
2 stops31h 58mMultiple Airlines
Deal found 6/1$400
อ. 8/2012:15 pmSTL - LGW
3 stops17h 30mMultiple Airlines
Deal found 6/1$420
พ. 7/107:33 pmSTL - STN
3 stops43h 07mMultiple Airlines
Deal found 5/31$421
พ. 7/107:33 pmSTL - STN
3 stops43h 07mMultiple Airlines
Deal found 6/1$426
พฤ. 7/116:19 pmSTL - STN
3 stops38h 56mMultiple Airlines
Deal found 5/31$430
ส. 6/154:05 pmSTL - LHR
1 stop32h 30mAir Canada
Deal found 6/1$442
พฤ. 7/116:19 pmSTL - LTN
3 stops42h 36mMultiple Airlines
Deal found 5/31$445

Find flights from St. Louis to London within your budget

Customize your flight search to find flights from St. Louis to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$821 - $990

Route

Depart

Return

Price

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

พ. 8/7

2 stops17h 50m

London Heathrow

อา. 8/11

2 stops35h 51m

$821

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

พ. 6/5

1 stop18h 07m

London Heathrow

จ. 6/17

2 stops18h 29m

$828

Lambert-St LouisLondon City

STL - LCY

STLLCY

Lambert-St Louis

ศ. 7/26

2 stops41h 45m

London City

พฤ. 8/29

1 stop24h 20m

$839

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

อ. 7/2

1 stop30h 25m

London Heathrow

พ. 7/10

1 stop32h 01m

$841

Lambert-St LouisLondon City

STL - LCY

STLLCY

Lambert-St Louis

พ. 6/5

2 stops14h 55m

London City

พ. 6/12

2 stops18h 35m

$844

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

พ. 7/24

1 stop12h 06m

London Heathrow

พ. 7/31

1 stop12h 16m

$891

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

พ. 8/7

1 stop13h 17m

London Heathrow

อา. 8/11

1 stop13h 44m

$909

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

จ. 7/8

2 stops17h 16m

London Heathrow

อา. 7/21

1 stop12h 16m

$986

Lambert-St LouisLondon Heathrow

STL - LHR

STLLHR

Lambert-St Louis

พฤ. 7/18

1 stop12h 14m

London Heathrow

อา. 8/4

1 stop13h 46m

$990

Flights are sorted by cheapest first

Deals found on 6/1

How far ahead should I book a flight from St. Louis to London?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to London. Price data was last updated on May 31, 2024.
The best time to book flights from St. Louis to London is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from St. Louis to London?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to London. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to London flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to London

Have a flexible travel schedule? Discover the best time to fly to London from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated มิถุนายน 2, 2024.
Read reviews from past customers who have flown Air Canada, United Airlines and American Airlines from St. Louis to London. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,410 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,410 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,507 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Finnair
7.8
Good
1,368 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.6
Good
720 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.5
Good
1,728 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to London?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to London. You should not have trouble finding flights to London from Lambert-St Louis; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 11 airlines have flights from the St. Louis airport to London. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • Can I find flights from St. Louis to London for under $900 on Cheapflights?

    Yes, there are multiple flights from St. Louis to London for under $900. The cheapest flight booked recently is on Air Canada for just $821, but on average you can expect to pay $844.

  • Are there last-minute flights available from St. Louis to London for under $800?

    There are currently 20+ open flights from St. Louis to London within the next 7 days for less than $800.

  • What are the cheapest airlines flying from St. Louis to London round-trip?

    According to our current data, Air Canada ($821), United Airlines ($828), and Lufthansa ($839) offers the cheapest pricing from St. Louis to London. These flights start at 11% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to London one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $442. However, be on the lookout for offers from Iberia and United Airlines, as they are both options that can get you from St. Louis to London for a low price.

  • What are the most popular routes from St. Louis to London?

    The most popular flight routes from St. Louis to London are Lambert-St Louis - London Heathrow, Lambert-St Louis - London Gatwick and Lambert-St Louis - London City.

  • What does STL to LHR mean?

    Lambert-St Louis Airport is STL and London Heathrow Airport is LHR. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

  • Where are the most common layover locations when flying from St. Louis to London?

    Flights departing from St. Louis and landing in London layover in Chicago most frequently.

  • What are some popular things to do or see while on a layover in Chicago?

    Chicago travelers tend to visit Grant Park, Magnificent Mile, and Wrigley Field more than anywhere else. Grant Park, Magnificent Mile, and Wrigley Field are located about 16.2 mi, 15.5 mi, and 13.0 mi, respectively from Chicago O'Hare Intl. Travelers can rent a car at Chicago O'Hare Intl for an average daily rate of $60 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for St. Louis to London flights?

    Flights departing from St. Louis and landing in London layover in Detroit least frequently.

  • Can I find deals for flights from St. Louis to London that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to London with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to London that include hotel bookings?

    Yes. In addition to deals on St. Louis to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to London.

  • Can I find deals for business class flights from St. Louis to London?

    Yes. Cheapflights offers flight deals from St. Louis to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to London that allow pets onboard?

    Many airlines flying from St. Louis to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to London?

    Yes, you can often find last-minute deals on St. Louis to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to London flight deals updated?

    The St. Louis to London flight deals you see on this page were last updated on 6/1.

  • What are the most popular airlines that fly from St. Louis to London?

    When booking a flight from St. Louis to London, you may want to consider flying on American Airlines, Air Canada or Air France as they are the most popular for this route.

  • What is the cheapest month to book a flight from St. Louis to London?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to London (average of $652). Flying from St. Louis to London in June is currently the most expensive (average of $1,114). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to London
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Heathrow flights
St. Louis to Heathrow flights
Kansas City to Gatwick flights
St. Louis to Gatwick flights
Kansas City to London City flights
Kansas City to Edinburgh flights
St. Louis to Edinburgh flights
Springfield to Heathrow flights
St. Louis to London City flights
Kansas City to Manchester flights
Springfield to Gatwick flights
Columbia to Heathrow flights
St. Louis to Luton flights
Kansas City to Stansted flights
St. Louis to Manchester flights
Springfield to London City flights
Kansas City to Leeds flights
Kansas City to Birmingham flights
St. Louis to Birmingham flights
St. Louis to Stansted flights
Joplin to Heathrow flights
Springfield to Edinburgh flights
St. Louis to Leeds flights
Kansas City to Grimsby flights
Kansas City to Newcastle upon Tyne flights
Kansas City to Liverpool flights
Joplin to Edinburgh flights
Kansas City to Bristol flights

Top 10 airlines flying from St. Louis to London

Discover the top 10 airlines that operate flights from St. Louis to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated มิถุนายน 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$587Average$845FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest$620Average$781FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest$635Average$1,003FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest$643Average$840FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest$653Average$881FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest$654Average$795FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest$661Average$868FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
LufthansaCheapest$670Average$1,259FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest$688Average$885FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest$700Average$1,111FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Miami to Orlando flights
New York to Mumbai flights
Chicago to Cancún flights
Denver to Cancún flights
New York to Beijing flights
San Diego to Los Angeles flights
New York to Greece flights
Las Vegas to New York flights
Chicago to New Delhi flights
USA to Switzerland flights
Dallas to Atlanta flights
St. Louis to Lagos flights

Search flights from St. Louis to London by cabin class

Find flights from St. Louis to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to London?

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from St. Louis to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to London become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines