Newark
London Heathrow
1 stop
10h 30mIcelandair
Newark
London Heathrow
1 stop
18h 05mTAP AIR PORTUGAL
Washington, D.C. Dulles Intl
London Heathrow
1 stop
19h 30mAvianca
Boston Logan Intl
London Heathrow
Nonstop
6h 25mFinnair
Boston Logan Intl
London Heathrow
2 stops
13h 35mMultiple Airlines
Newark
London Heathrow
Nonstop
7h 10mIberia
Newark
London Heathrow
1 stop
10h 30mLondon Heathrow
Newark
1 stop
11h 05mIcelandair
Boston Logan Intl
London Heathrow
1 stop
15h 05mLondon Heathrow
Boston Logan Intl
1 stop
23h 20mTAP AIR PORTUGAL
New York John F Kennedy Intl
London Gatwick
Nonstop
7h 05mLondon Gatwick
New York John F Kennedy Intl
Nonstop
8h 00mIberia
Newark
London Heathrow
1 stop
32h 40mLondon Heathrow
Newark
2 stops
35h 35mSWISS
New York John F Kennedy Intl
London Gatwick
1 stop
13h 20mLondon Gatwick
New York John F Kennedy Intl
1 stop
29h 20mAir Europa
Newark
London Heathrow
2 stops
39h 50mLondon Heathrow
Newark
2 stops
53h 00mAustrian Airlines
January
$2,433
February
$1,967
March
$766
April
$1,760
May
$1,738
June
$1,777
July
$1,870
August
$2,426
September
$3,083
October
$1,618
November
$1,442
December
$2,298
Currently, March is the cheapest month in which you can book a business class flight to London. Flying business class to London in September will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.