Flights from Washington Airport (IAD) to Heathrow Airport Airport (LHR)

We've found the cheapest flights to London

Returns from £456.64

One-way from £285.59

If you are looking to fly from Washington Dulles International to London Heathrow you will find there are 16 airliners who offer this route. These include KLM, Delta Air Lines, Singapore Airlines, Air France, Virgin Atlantic, Swiss, Lufthansa, Copa Airlines, Austrian Airlines, Air Canada, Iberia, Finnair, American Airlines, Aer Lingus, United Airlines and British Airways. The official airport code for Washington Dulles International is IAD and for London Heathrow it is LHR.

The cost of flights varies on the time and day you fly. If you know the dates you wish to travel then book you flights as soon as you can. The earlier you book your lights the cheaper they will be. You can get saving of up to 50% of you book 2 or 3 months in advance! We recommend our viewers to pay and reserve the seats in advance. This ensures you get the best seats on the plane at the cheapest prices.

On arriving at London Heathrow please note the time difference, the time zone at London Heathrow is 0.0 GMT compared to 5.0 GMT at Washington Dulles International.

Please see below the airlines that fly from Washington Dulles International (IAD) to London Heathrow (LHR) and the amount of daily flights in operation.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
United Airlines222222219:2523:30VIEW FLIGHTS
British Airways222222206:1522:55VIEW FLIGHTS
Iberia222222106:1522:55VIEW FLIGHTS
Finnair222222106:1522:55VIEW FLIGHTS
American Airlines222222106:1522:55VIEW FLIGHTS
Aer Lingus222222106:1522:55VIEW FLIGHTS
Swiss222222019:2523:30VIEW FLIGHTS
Lufthansa222222019:2523:30VIEW FLIGHTS
Copa Airlines222222019:2523:30VIEW FLIGHTS
Austrian Airlines222222019:2523:30VIEW FLIGHTS
Air Canada222222019:2523:30VIEW FLIGHTS
Virgin Atlantic111222207:1521:40VIEW FLIGHTS
Singapore Airlines111222007:1522:20VIEW FLIGHTS
Air France111222007:1521:40VIEW FLIGHTS
KLM111111019:2521:40VIEW FLIGHTS
Delta Air Lines111111019:2522:20VIEW FLIGHTS

United Airlines is the most popular airliners who operate this route. They have around 14 a week with times that vary between 19:25 and 23:30.

Would you like to book your flight? Bookings can be made direct with United Airlines on their website united.com.

The flight time for the selected route vary based on the month you will travel, but below we has summarised the most common times they will fly. We recommend you only take these times as guidance and check with appropriate airline for the exact times for the date you depart.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
19:00
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
British AirwaysBA216
IberiaIB3589
19:25
AirlineFlight  No
United AirlinesUA918
Austrian AirlinesOS7806
Air CanadaAC5346
LufthansaLH9259
Copa AirlinesCM2293
SwissLX3061
19:45
AirlineFlight  No
Singapore AirlinesSQ2522
Air FranceAF9652
KLMKL4805
Delta Air LinesDL5982
Virgin AtlanticVS22
22:55
AirlineFlight  No
FinnairAY5532
Aer LingusEI8992
American AirlinesAA7001
British AirwaysBA292
IberiaIB3631
23:15
AirlineFlight  No
United AirlinesUA924
Austrian AirlinesOS7808
Air CanadaAC5350
LufthansaLH9267
Copa AirlinesCM2294
SwissLX3045
VIEW FLIGHTS
Tuesday
19:00
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
British AirwaysBA216
IberiaIB3589
19:25
AirlineFlight  No
United AirlinesUA918
Austrian AirlinesOS7806
Singapore AirlinesSQ2522
Air CanadaAC5346
Air FranceAF9652
KLMKL4805
Delta Air LinesDL5982
LufthansaLH9259
Copa AirlinesCM2293
SwissLX3061
Virgin AtlanticVS22
22:55
AirlineFlight  No
FinnairAY5532
Aer LingusEI8992
American AirlinesAA7001
British AirwaysBA292
IberiaIB3631
23:15
AirlineFlight  No
United AirlinesUA924
Austrian AirlinesOS7808
Air CanadaAC5350
LufthansaLH9267
Copa AirlinesCM2294
SwissLX3045
VIEW FLIGHTS
Wednesday
06:15
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
British AirwaysBA216
IberiaIB3589
19:25
AirlineFlight  No
United AirlinesUA918
Austrian AirlinesOS7806
Air CanadaAC5346
LufthansaLH9259
Copa AirlinesCM2293
SwissLX3061
19:45
AirlineFlight  No
Singapore AirlinesSQ2522
Air FranceAF9652
KLMKL4805
Delta Air LinesDL5982
Virgin AtlanticVS22
22:55
AirlineFlight  No
FinnairAY5532
Aer LingusEI8992
American AirlinesAA7001
British AirwaysBA292
IberiaIB3631
23:30
AirlineFlight  No
United AirlinesUA924
Austrian AirlinesOS7808
Air CanadaAC5350
LufthansaLH9267
Copa AirlinesCM2294
SwissLX3045
VIEW FLIGHTS
Thursday
07:15
AirlineFlight  No
Singapore AirlinesSQ2522
Air FranceAF9652
Virgin AtlanticVS22
19:00
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
British AirwaysBA216
IberiaIB3589
19:25
AirlineFlight  No
United AirlinesUA918
Austrian AirlinesOS7806
Air CanadaAC5346
LufthansaLH9259
Copa AirlinesCM2293
SwissLX3061
21:40
AirlineFlight  No
Singapore AirlinesSQ2532
Air FranceAF9281
KLMKL4805
Delta Air LinesDL5982
Virgin AtlanticVS56
22:55
AirlineFlight  No
FinnairAY5532
Aer LingusEI8992
American AirlinesAA7001
British AirwaysBA292
IberiaIB3631
23:30
AirlineFlight  No
United AirlinesUA924
Austrian AirlinesOS7808
Air CanadaAC5350
LufthansaLH9267
Copa AirlinesCM2294
SwissLX3045
VIEW FLIGHTS
Friday
09:10
AirlineFlight  No
Singapore AirlinesSQ2532
Air FranceAF9281
Virgin AtlanticVS56
19:00
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
British AirwaysBA216
IberiaIB3589
19:25
AirlineFlight  No
United AirlinesUA918
Austrian AirlinesOS7806
Air CanadaAC5346
LufthansaLH9259
Copa AirlinesCM2293
SwissLX3061
19:45
AirlineFlight  No
Air FranceAF9652
KLMKL4805
Virgin AtlanticVS22
22:20
AirlineFlight  No
Singapore AirlinesSQ2522
Delta Air LinesDL5982
22:55
AirlineFlight  No
FinnairAY5532
Aer LingusEI8992
American AirlinesAA7001
British AirwaysBA292
IberiaIB3631
23:30
AirlineFlight  No
United AirlinesUA924
Austrian AirlinesOS7808
Air CanadaAC5350
LufthansaLH9267
Copa AirlinesCM2294
SwissLX3045
VIEW FLIGHTS
Saturday
07:15
AirlineFlight  No
Singapore AirlinesSQ2522
Air FranceAF9652
09:30
AirlineFlight  No
Virgin AtlanticVS22
19:00
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
British AirwaysBA216
IberiaIB3589
19:25
AirlineFlight  No
United AirlinesUA918
Austrian AirlinesOS7806
Air CanadaAC5346
LufthansaLH9259
Copa AirlinesCM2293
SwissLX3061
22:00
AirlineFlight  No
Singapore AirlinesSQ2532
Air FranceAF9281
KLMKL4805
Delta Air LinesDL5982
Virgin AtlanticVS56
22:55
AirlineFlight  No
FinnairAY5532
Aer LingusEI8992
American AirlinesAA7001
British AirwaysBA292
IberiaIB3631
23:15
AirlineFlight  No
United AirlinesUA924
Austrian AirlinesOS7808
Air CanadaAC5350
LufthansaLH9267
Copa AirlinesCM2294
SwissLX3045
VIEW FLIGHTS
Sunday
06:15
AirlineFlight  No
FinnairAY5416
Aer LingusEI8916
American AirlinesAA6967
IberiaIB3589
09:30
AirlineFlight  No
Virgin AtlanticVS56
19:00
AirlineFlight  No
British AirwaysBA216
19:25
AirlineFlight  No
Virgin AtlanticVS22
19:30
AirlineFlight  No
United AirlinesUA918
22:55
AirlineFlight  No
British AirwaysBA292
23:30
AirlineFlight  No
United AirlinesUA924
VIEW FLIGHTS

Flights to London Heathrow are also available from airports close to Washington Dulles International. Below we have provided a short list of routes which you could consider is you feel that are suitable.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Baltimore Washington Thurgood Marshall to Heathrow 07 Hours 40 Minutes
Philadelphia to Heathrow 07 Hours 30 Minutes

Over the past 10 years flight regulations have become very strict so we advise you to leave plenty of time to check in and get through customs.

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Flight Price FAQ - Washington (IAD) to London (LHR)

DIRECT Virgin Atlantic
What is the cheapest direct flight one way from Washington IAD to London LHR?
The cheapest direct flight one way from Washington IAD to London LHR is £285.59 ($369 €339.13)
£285.59
$369 | €339.13
Check Latest Price
DIRECT Virgin Atlantic
What is the cheapest direct return flight from Washington IAD to London LHR?
The cheapest direct return flight from Washington IAD to London LHR is £456.64 ($590 €542.24)
£456.64
$590 | €542.24
Check Latest Price
1+ STOP(S)
What is the cheapest flight one way from Washington IAD to London LHR?
The cheapest flight one way from Washington IAD to London LHR is £147.83 ($191 €175.54)
£147.83
$191 | €175.54
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from Washington IAD to London LHR?
The cheapest return flight from Washington IAD to London LHR is £367.63 ($475 €436.55)
£367.63
$475 | €436.55
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from IAD to LHR

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Flight Info FAQ - Washington (IAD) to London (LHR)

Who flies from Washington to London?
The following airlines fly from Washington (IAD) to London (LHR): Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Copa Airlines, Delta Air Lines, Finnair, Iberia, KLM, Lufthansa, Singapore Airlines, Swiss, United Airlines, Virgin Atlantic.
How far is the flight from Washington to London?
The flight from Washington to London is 5,902KM or 3,667 miles.
How long does the flight from Washington to London to take?
The flight from Washington to London takes 7 Hours 45 Minutes.

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