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Cheap flights from St. Louis (STL) to Barcelona from $375

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 10/5. 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 — BCN
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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The best prices from Lambert-St Louis to Barcelona are usually found in January or February, booked 3 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from St. Louis to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Barcelona (S37). 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 June 2, 2024.

Popular in

June

Cheapest in

January

Average price

$1,555

Round-trip from

$510
High demand for flights, 35% potential price rise
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Best time to find cheap flights, 31% potential price drop
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Average for round-trip flights in June 2024
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From Lambert-St Louis to Barcelona
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What is the cheapest day to fly round-trip from St. Louis to Barcelona?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 36% on your flight compared to booking on days when demand is much higher.

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

Our data shows that January tends to be the cheapest month to fly to Barcelona from St. Louis. Users have commonly found prices around $1,012 for the month, but tickets can be as low as $456. Due to multiple factors, prepare for potentially higher prices in June.

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

It’s optimal to fly from St. Louis to Barcelona in the evening. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.

Cheap United Airlines flights from St. Louis to Barcelona

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Barcelona. 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 June 2, 2024.
Take a peek at the cheapest United Airlines flights we've detected traveling from St. Louis to Barcelona. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 11/281:00 pmSTL - BCN
1 stop12h 20mUnited Airlines
Tue 12/39:15 amBCN - STL
2 stops36h 03mUnited Airlines
Deal found 6/1$571
Tue 8/208:25 amSTL - BCN
1 stop16h 55mUnited Airlines
Fri 8/3012:25 pmBCN - STL
2 stops30h 57mUnited Airlines
Deal found 6/1$694
Tue 8/2012:00 pmSTL - BCN
1 stop14h 40mUnited Airlines
Fri 8/3012:15 pmBCN - STL
2 stops31h 07mUnited Airlines
Deal found 6/2$695
Tue 8/208:05 amSTL - BCN
2 stops18h 35mUnited Airlines
Fri 8/3012:15 pmBCN - STL
2 stops31h 07mUnited Airlines
Deal found 6/2$699
Sat 10/196:30 amSTL - BCN
1 stop23h 15mUnited Airlines
Sat 10/2612:20 pmBCN - STL
1 stop28h 33mUnited Airlines
Deal found 6/1$714
Wed 8/2810:10 amSTL - BCN
1 stop17h 15mUnited Airlines
Tue 9/102:50 pmBCN - STL
1 stop31h 59mUnited Airlines
Deal found 6/2$716
Wed 8/2811:10 amSTL - BCN
2 stops16h 15mUnited Airlines
Tue 9/102:50 pmBCN - STL
1 stop31h 59mUnited Airlines
Deal found 6/2$720
Fri 9/66:02 amSTL - BCN
2 stops20h 38mUnited Airlines
Fri 9/1312:25 pmBCN - STL
2 stops30h 09mUnited Airlines
Deal found 6/1$737
Fri 8/1612:00 pmSTL - BCN
1 stop14h 40mUnited Airlines
Fri 8/2312:25 pmBCN - STL
2 stops30h 09mUnited Airlines
Deal found 6/1$739

Cheap Air Canada flights from St. Louis to Barcelona

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Barcelona. 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 June 2, 2024.
Some of the best deals we've found on Air Canada flights traveling from St. Louis to Barcelona. Ensure the flight price, dates, time, and airline match your criteria before you book.
Thu 11/284:10 pmSTL - BCN
2 stops32h 25mAir Canada
Tue 12/39:15 amBCN - STL
2 stops31h 38mAir Canada
Deal found 6/1$590
Wed 10/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Thu 10/2412:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$615
Wed 10/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Fri 10/2512:15 pmBCN - STL
1 stop34h 05mAir Canada
Deal found 6/1$621
Wed 10/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Sat 10/2612:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$665
Thu 10/174:05 pmSTL - BCN
1 stop11h 20mAir Canada
Thu 10/2412:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$671
Thu 10/174:05 pmSTL - BCN
1 stop11h 20mAir Canada
Fri 10/2512:15 pmBCN - STL
2 stops15h 50mAir Canada
Deal found 6/1$677
Wed 7/310:10 amSTL - BCN
1 stop17h 15mAir Canada
Wed 7/2412:15 pmBCN - STL
1 stop34h 06mAir Canada
Deal found 6/1$698
Wed 9/1110:10 amSTL - BCN
2 stops16h 30mAir Canada
Wed 9/2512:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$700
Tue 8/2012:00 pmSTL - BCN
1 stop14h 40mAir Canada
Fri 8/3012:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$701

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

Find cheap flight options from St. Louis to Barcelona 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 June 2, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Barcelona in June and July 2024. More deals are always being added, so be sure to check back regularly.
Tue 6/46:30 amSTL - BCN
1 stop23h 15mMultiple Airlines
Tue 6/1112:15 pmBCN - STL
1 stop34h 06mMultiple Airlines
Deal found 5/31$685
Tue 6/411:38 amSTL - BCN
2 stops15h 02mAir Canada
Tue 6/1112:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 5/31$691
Mon 6/310:45 amSTL - BCN
1 stop17h 50mDelta
Tue 6/181:45 pmBCN - STL
1 stop25h 55mDelta
Deal found 6/1$694
Tue 6/411:38 amSTL - BCN
2 stops15h 02mAir Canada
Tue 6/1112:25 pmBCN - STL
2 stops14h 36mAir Canada
Deal found 5/31$696
Tue 6/116:00 amSTL - BCN
1 stop21h 30mAmerican Airlines
Wed 6/191:55 pmBCN - STL
1 stop16h 02mAmerican Airlines
Deal found 6/1$701
Tue 6/116:00 amSTL - BCN
1 stop21h 30mAmerican Airlines
Wed 6/1912:50 pmBCN - STL
2 stops18h 13mAmerican Airlines
Deal found 6/1$705
Tue 6/112:56 pmSTL - BCN
2 stops16h 09mBritish Airways
Wed 6/1911:05 amBCN - STL
1 stop17h 57mBritish Airways
Deal found 6/2$727
Sat 6/87:47 pmSTL - BCN
1 stop33h 13mBritish Airways
Fri 6/2111:05 amBCN - STL
1 stop17h 57mBritish Airways
Deal found 6/1$734
Tue 6/113:23 pmSTL - BCN
2 stops18h 02mDelta
Wed 6/198:55 amBCN - STL
2 stops21h 48mDelta
Deal found 6/1$735

St. Louis to Barcelona 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Barcelona in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Barcelona in June and July 2024. More deals are always being added, so be sure to check back regularly.
Thu 11/281:00 pmSTL - BCN
1 stop12h 20mUnited Airlines
Tue 12/39:15 amBCN - STL
2 stops36h 03mUnited Airlines
Deal found 6/1$571
Thu 11/285:40 pmSTL - BCN
1 stop32h 20mMultiple Airlines
Tue 12/39:15 amBCN - STL
2 stops31h 38mMultiple Airlines
Deal found 6/1$578
Thu 11/284:10 pmSTL - BCN
2 stops32h 25mAir Canada
Tue 12/39:15 amBCN - STL
2 stops31h 38mAir Canada
Deal found 6/1$590
Wed 10/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Thu 10/2412:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$615
Thu 11/281:00 pmSTL - BCN
1 stop12h 20mMultiple Airlines
Tue 12/31:00 pmBCN - STL
1 stop31h 55mMultiple Airlines
Deal found 6/1$616
Wed 10/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Fri 10/2512:15 pmBCN - STL
1 stop34h 05mAir Canada
Deal found 6/1$621
Wed 10/162:38 pmSTL - BCN
2 stops15h 32mAmerican Airlines
Thu 10/2411:05 amBCN - STL
1 stop17h 30mAmerican Airlines
Deal found 6/1$634
Wed 10/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Sat 10/2612:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 6/1$665
Wed 10/162:05 pmSTL - BCN
2 stops17h 15mDelta
Thu 10/246:10 amBCN - STL
2 stops22h 21mDelta
Deal found 6/1$670

St. Louis to Barcelona flights leaving soon

Find last-minute flight options from St. Louis to Barcelona 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 June 2, 2024.
Users seeking a last-minute flight from St. Louis to Barcelona should consider booking one of these fares. It's wise to confirm all flight details are correct before booking.
Tue 6/116:00 amSTL - BCN
1 stop21h 30mAmerican Airlines
Wed 6/191:55 pmBCN - STL
1 stop16h 02mAmerican Airlines
Deal found 6/1$701
Tue 6/116:00 amSTL - BCN
1 stop21h 30mAmerican Airlines
Wed 6/1912:50 pmBCN - STL
2 stops18h 13mAmerican Airlines
Deal found 6/1$705
Tue 6/112:56 pmSTL - BCN
2 stops16h 09mBritish Airways
Wed 6/1911:05 amBCN - STL
1 stop17h 57mBritish Airways
Deal found 6/2$727
Sat 6/87:47 pmSTL - BCN
1 stop33h 13mBritish Airways
Fri 6/2111:05 amBCN - STL
1 stop17h 57mBritish Airways
Deal found 6/1$734
Tue 6/113:23 pmSTL - BCN
2 stops18h 02mDelta
Wed 6/198:55 amBCN - STL
2 stops21h 48mDelta
Deal found 6/1$735
Tue 6/112:56 pmSTL - BCN
2 stops16h 09mBritish Airways
Wed 6/1910:15 amBCN - STL
2 stops18h 47mBritish Airways
Deal found 6/2$743
Sat 6/86:27 pmSTL - BCN
1 stop33h 03mBritish Airways
Fri 6/2110:15 amBCN - STL
2 stops19h 42mBritish Airways
Deal found 6/1$750
Tue 6/115:27 pmSTL - BCN
1 stop35h 33mBritish Airways
Mon 6/249:05 pmBCN - STL
2 stops51h 13mBritish Airways
Deal found 6/1$755
Tue 6/1112:56 pmSTL - BCN
2 stops18h 09mBritish Airways
Mon 6/249:05 pmBCN - STL
2 stops47h 07mBritish Airways
Deal found 6/1$975

One-way flights to Barcelona from St. Louis

Search for one-way flight options from St. Louis to Barcelona. 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 June 2, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Barcelona, be sure to check out these deals, which are updated often. Those seeking round-trip flights from St. Louis to Barcelona should utilize the search form at the the top of the page.
Sat 10/58:00 pmSTL - BCN
3 stops37h 10mMultiple Airlines
Deal found 6/1$375
Sun 11/246:42 pmSTL - BCN
2 stops39h 53mMultiple Airlines
Deal found 6/1$383
Fri 11/226:42 pmSTL - BCN
2 stops39h 43mMultiple Airlines
Deal found 6/1$421
Sat 10/511:39 amSTL - BCN
2 stops42h 06mMultiple Airlines
Deal found 6/1$457
Tue 6/117:29 pmSTL - BCN
3 stops58h 31mMultiple Airlines
Deal found 5/31$498
Sun 11/2412:24 pmSTL - BCN
1 stop13h 36mLufthansa
Deal found 6/1$517
Wed 10/3011:10 amSTL - BCN
2 stops15h 50mUnited Airlines
Deal found 6/1$520
Wed 10/307:29 pmSTL - BCN
3 stops54h 21mMultiple Airlines
Deal found 6/1$535
Fri 11/2212:15 pmSTL - BCN
3 stops21h 40mMultiple Airlines
Deal found 6/1$552

Find flights from St. Louis to Barcelona within your budget

Customize your flight search to find flights from St. Louis to Barcelona 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 June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$571 - $957

Route

Depart

Return

Price

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Thu 11/28

1 stop12h 20m

Barcelona-El Prat

Tue 12/3

2 stops36h 03m

$571

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Thu 11/28

1 stop32h 20m

Barcelona-El Prat

Tue 12/3

2 stops31h 38m

$578

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Thu 11/28

2 stops32h 25m

Barcelona-El Prat

Tue 12/3

2 stops31h 38m

$590

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/16

2 stops15h 32m

Barcelona-El Prat

Thu 10/24

1 stop17h 30m

$634

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/16

2 stops17h 15m

Barcelona-El Prat

Thu 10/24

2 stops22h 21m

$670

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Sun 10/6

1 stop33h 16m

Barcelona-El Prat

Mon 10/14

2 stops32h 19m

$679

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/16

2 stops15h 25m

Barcelona-El Prat

Fri 10/25

2 stops17h 31m

$684

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Fri 10/18

1 stop13h 30m

Barcelona-El Prat

Thu 10/24

2 stops18h 17m

$712

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/16

2 stops14h 35m

Barcelona-El Prat

Sat 10/26

2 stops15h 36m

$957

Flights are sorted by cheapest first

Deals found on 6/1

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Barcelona. Price data was last updated on May 31, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Barcelona, you should look to book at least 3 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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What is the cheapest day to fly from St. Louis to Barcelona?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Barcelona. 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 Barcelona flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday at noon 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 Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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 Barcelona by month

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

BCN

Temperature

48.2 - 75.2 °F

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated June 2, 2024.
Peruse reviews from past customers who have flown with United Airlines, Air Canada and British Airways from St. Louis to Barcelona to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Overall

8.0

Crew

8.6

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Overall

8.0

Crew

8.6

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Overall

8.0

Crew

8.6

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Overall

8.0

Crew

8.6

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.

United Airlines
7.4
Good
10,755 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Overall

8.0

Crew

8.6

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.

American Airlines
7.3
Good
14,260 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Overall

8.0

Crew

8.6

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 Barcelona. 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 Barcelona?

    If you book a flight to Barcelona from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Barcelona per day from 9 different airlines.

  • Can I find flights from St. Louis to Barcelona for under $600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Barcelona for under $600. The cheapest flight booked recently is on United Airlines for just $571, but on average you can expect to pay $656.

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

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

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

    United Airlines, at $571, was found to be the cheapest airline from St. Louis to Barcelona.Alternate airlines to your destination round-trip include Air Canada and American Airlines. You may be able to fly from St. Louis to Barcelona for 43% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from St. Louis to Barcelona are Lufthansa ($517), United Airlines ($520), and Iberia ($570).

  • What does STL to BCN mean?

    STL stands for Lambert-St Louis Airport, while BCN stands for Barcelona-El Prat Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Girona Costa Brava Airport (GRO), Reus Airport (REU), La Seu d'Urgell Aeroport De La Seu Airport (LEU), Lleida-Alguaire Airport (ILD) are other airports near this flight route and their unique identifiers/IATA codes.

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

    The amount of baggage you can bring on your St. Louis to Barcelona 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 Barcelona with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Barcelona 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 Barcelona that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Barcelona 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 Barcelona that allow pets onboard?

    Many airlines flying from St. Louis to Barcelona 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 Barcelona?

    Yes, you can often find last-minute deals on St. Louis to Barcelona 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 Barcelona flight deals updated?

    The St. Louis to Barcelona 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 Barcelona?

    Before booking your flight from St. Louis to Barcelona check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Barcelona (average of $510). Flying from St. Louis to Barcelona in June is currently the most expensive (average of $1,054). 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

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

Kansas City to Barcelona-El Prat flights
St. Louis to Barcelona-El Prat flights
Springfield to Barcelona-El Prat flights
Joplin to Barcelona-El Prat flights

Top 9 airlines flying from St. Louis to Barcelona

Discover the top 9 airlines that operate flights from St. Louis to Barcelona. 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 June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$540Average$824FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest$550Average$892FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest$590Average$1,045FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$610Average$883FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$631Average$971FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest$669Average$844FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest$687Average$1,248FlexibilityNo cancel feeOn-time69%
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