London Heathrow
Baltimore/Washington
1 stop
17h 10mMultiple Airlines
London Heathrow
Washington, D.C. Dulles Intl
1 stop
14h 00mTAP AIR PORTUGAL
London Gatwick
Baltimore/Washington
1 stop
11h 25mIcelandair
London Gatwick
Washington, D.C. Dulles Intl
1 stop
31h 40mRoyal Air Maroc
London Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 05mFinnair
London Gatwick
Washington, D.C. Dulles Intl
1 stop
26h 30mTurkish Airlines
London Heathrow
Washington, D.C. Dulles Intl
1 stop
17h 20mWashington, D.C. Dulles Intl
London Heathrow
1 stop
14h 20mTAP AIR PORTUGAL
London Heathrow
Washington, D.C. Dulles Intl
1 stop
11h 05mWashington, D.C. Dulles Intl
London Heathrow
1 stop
31h 40mIcelandair
London Gatwick
Washington, D.C. Dulles Intl
1 stop
31h 40mWashington, D.C. Dulles Intl
London Gatwick
1 stop
13h 20mRoyal Air Maroc
London Heathrow
Washington, D.C. Dulles Intl
1 stop
23h 55mWashington, D.C. Dulles Intl
London Heathrow
2 stops
18h 10mScandinavian Airlines
London Heathrow
Baltimore/Washington
2 stops
52h 55mBaltimore/Washington
London Heathrow
1 stop
10h 25mMultiple Airlines
London Heathrow
Washington, D.C. Dulles Intl
Nonstop
8h 05mWashington, D.C. Dulles Intl
London Heathrow
1 stop
14h 52mBritish Airways
January
£1,941
February
£1,554
March
£1,766
April
£1,460
May
£1,895
June
£2,439
July
£2,329
August
£2,162
September
£2,081
October
£2,213
November
£2,099
December
£1,699
Currently, April is the cheapest month in which you can book a business class flight to Washington, D.C.. Flying business class to Washington, D.C. in June 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.