| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 04/16/26 1 Stopover (KEF) FI0451, FI0645 11h 15min |  Icelandair |  | $591 | ||
| Best option Washington DC London Heathrow | Outbound 04/06/26 direct OS7808 07h 30min | Return 04/17/26 direct OS7807 08h 15min |  Austrian Airlines |  | ? | $655 | |
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 04/16/26 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair |  | ? | $594 | |
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 04/16/26 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair |  | $595 | ||
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 04/16/26 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair |  | ? | $601 | |
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (FCO) AZ0619, AZ0204 18h 10min | Return 04/16/26 1 Stopover (FCO) AZ0203, AZ0618 33h 10min |  Italia Trasporto Aereo | | $623 | ||
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (FCO) AZ0619, AZ0204 18h 10min | Return 04/16/26 1 Stopover (FCO) AZ0203, AZ0618 33h 10min | Italia Trasporto Aereo | | $627 | ||
| Washington DC London Heathrow | Outbound 04/03/26 direct UA0918 07h 30min | Return 04/16/26 1 Stopover (BRU) UA9924, UA9903 11h 40min |  United Airlines |  | ? | $673 | |
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 04/16/26 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair |  | ? | $686 | |
| Washington DC London Heathrow | Outbound 04/03/26 1 Stopover (DUB) EI0118, EI0162 11h 15min | Return 04/16/26 1 Stopover (DUB) EI0159, EI0119 11h 55min |  Aer Lingus Irish Airlines |  | ? | $717 |
Stops
- Direct flight
Airline
- Icelandair
- United Airlines
- Italia Trasporto Aereo
- Austrian Airlines
- Lufthansa
Tips and tricks to help you find cheap flights from Washington DC to London Heathrow
Favorite airline: Aer Lingus
Aer Lingus is the most popular airline for flights from Washington DC to London Heathrow.
Aer Lingus
30 %
Icelandair
24 %
British Airways
17 %
Cheapest weekday: Thursday
Compared to other weekdays, flights are cheapest on Thursday.
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are $129.00 more expensive on this route.
non stop flight
1 stop
2 stops
07h 20min
18h 45min
21h 40min
$562
$433
$599
Favourite connection: via Dublin
When booking flights from Washington DC to London Heathrow 33 % of travelers prefer to fly via Dublin.
Route
bookings
1 stopover Dublin
11h 00min, from $442
33 %
1 stopover Reykjavik-Keflavik International
18h 45min, from $433
27 %
Direct flights
07h 20min, from $562
22 %
Important flight information
Flight information: Washington DC - London Heathrow
| Roundtrip from | $590.94 |
|---|---|
| Flight duration | min. 07:00 / max. 07:25 |
| Return flight duration | min. 08:20/ max. 08:45 |
| Distance | 5908 km |
| Flights per week | 52 |
| Departure airport | Airport Washington DC - Dulles International Airport, DC (IAD) |
| Arrival airport | Airport London Heathrow (LHR) |
| Destination country | Flights to United Kingdom |
Alternative flights to London Heathrow
- Flight Los Angeles - London Heathrow from $629
- Flight Boston - London Heathrow from $477
- Flight Detroit - London Heathrow from $678
- Flight Miami - London Heathrow from $665
- Flight Chicago O'Hare - London Heathrow from $506
- Flight San Francisco - London Heathrow from $641
- Flight Denver - London Heathrow from $503
- Flight Dallas - London Heathrow from $763
- Flight Newark - London Heathrow from $417
- Flight New York - London Heathrow from $442
Flight destinations with a similar price
- Flight London Heathrow - Colombo from $963
- Flight London Heathrow - Accra from $593
- Flight London Heathrow - Amman from $332
- Flight London Heathrow - Stockholm from $103
- Flight London Heathrow - Athens from $171
- Flight London Heathrow - Mumbai from $386
- Flight London Heathrow - Cairo from $519
- Flight London Heathrow - Cologne from $198
- Flight London Heathrow - Delhi from $503
- Flight London Heathrow - Dusseldorf from $133
Flight destinations with a similar price
- Flight Washington DC - Berlin from $574
- Flight Washington DC - Amsterdam from $564
- Flight Washington DC - Austin from $535
- Flight Washington DC - Frankfurt from $596
- Flight Washington DC - Zurich from $574
- Flight Washington DC - Santa Cruz from $584
- Flight Washington DC - Hamburg from $638
- Flight Washington DC - Stuttgart from $595