| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Washington DC London Heathrow | Outbound 05/20/26 1 Stopover (LIS) TP0234, TP1368 12h 00min | Return - |  TAP Air Portugal |  | $437 | ||
| Washington DC London Heathrow | Outbound 05/16/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 05/29/26 1 Stopover (KEF) FI0455, FI0645 26h 55min |  Icelandair |  | $634 | ||
| Best option Washington DC London Heathrow | Outbound 05/16/26 direct BA0292 07h 25min | Return 05/29/26 direct BA0293 08h 15min |  British Airways |  | ? | $802 | |
| Washington DC London Heathrow | Outbound 05/16/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 05/29/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | $637 | ||
| Washington DC London Heathrow | Outbound 05/16/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 05/29/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | ? | $659 | |
| Washington DC London Heathrow | Outbound 05/16/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 05/29/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | ? | $728 | |
| Washington DC London Heathrow | Outbound 05/16/26 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 05/29/26 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair |  | $755 | ||
| Washington DC London Heathrow | Outbound 05/16/26 1 Stopover (CPH) SK0926, SK0505 14h 40min | Return 05/29/26 1 Stopover (CPH) SK0502, SK0925 11h 30min |  SAS Scandinavian Airlines |  | ? | $760 | |
| Washington DC London Heathrow | Outbound 05/16/26 direct BA0292 07h 25min | Return 05/29/26 1 Stopover (CLT) BA1610, BA5183 11h 58min | British Airways |  | ? | $812 | |
| Washington DC London Heathrow | Outbound 07/26/26 1 Stopover (DUB) EI0118, EI0162 10h 40min | Return 08/05/26 1 Stopover (DUB) EI0163, EI0119 10h 50min |  Aer Lingus Irish Airlines | | ? | $812 |
Stops
- Direct flight
Airline
- Icelandair
- British Airways
- Virgin Atlantic Airways
- Aer Lingus Irish Airlines
- SAS Scandinavian Airlines
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
| Cheapest outbound flight from | $ 436,97 |
|---|---|
| Roundtrip from | $ 633,03 |
| 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 $ 681
- Flight Columbus - London Heathrow from $ 661
- Flight Kansas City - London Heathrow from $ 740
- Flight San Francisco - London Heathrow from $ 429
- Flight Philadelphia - London Heathrow from $ 833
- Flight Baltimore - London Heathrow from $ 634
- Flight Denver - London Heathrow from $ 513
- Flight Dallas - London Heathrow from $ 641
- Flight Newark - London Heathrow from $ 405
- Flight New York - London Heathrow from $ 352
Flight destinations with a similar price
- Flight London Heathrow - Cologne from $ 239
- Flight London Heathrow - Cape Town from $ 753
- Flight London Heathrow - Stuttgart from $ 230
- Flight London Heathrow - Manila from $ 558
- Flight London Heathrow - Amman from $ 381
- Flight London Heathrow - Amsterdam from $ 179
- Flight London Heathrow - Stockholm from $ 224
- Flight London Heathrow - Athens from $ 243
- Flight London Heathrow - Bangkok from $ 623
- Flight London Heathrow - Mumbai from $ 585
Flight destinations with a similar price
- Flight Washington DC - New York from $ 409
- Flight Washington DC - Portland-Oregon from $ 398
- Flight Washington DC - Phoenix - Sky Harbor from $ 407
- Flight Washington DC - Cancun from $ 428
- Flight Washington DC - Mexico City from $ 475
- Flight Washington DC - San Jose from $ 419
- Flight Washington DC - Sacramento from $ 399
- Flight Washington DC - Madrid from $ 467