| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| London Heathrow Washington DC | Outbound 11/12/25 1 Stopover (LIS) TP1363, TP0231 14h 15min | Return - |  TAP Air Portugal |  | £505 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min |  Icelandair | | £363 | ||
| Best option London Heathrow Washington DC | Outbound 19/02/26 direct BA0217 08h 25min | Return 22/02/26 direct BA0216 07h 10min |  British Airways |  | £411 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Icelandair |  | £367 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Icelandair |  | £368 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (LIS) TP1363, TP0231 13h 35min | Return 02/12/25 1 Stopover (LIS) TP0232, TP1358 23h 05min | TAP Air Portugal |  | ? | £369 | |
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (LIS) TP1363, TP0231 13h 35min | Return 30/11/25 1 Stopover (LIS) TP0234, TP1356 14h 00min | TAP Air Portugal |  | £387 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Icelandair |  | £391 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (LIS) TP1363, TP0231 13h 35min | Return 02/12/25 1 Stopover (LIS) TP0232, TP1352 14h 10min | TAP Air Portugal |  | ? | £391 | |
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Icelandair |  | £393 |
Stops
- Direct flight
Airline
- Icelandair
- Lufthansa
- British Airways
- TAP Air Portugal
- Swiss International Air Lines
Tips and tricks to help you find cheap flights from London Heathrow to Washington DC
Favourite airline: Aer Lingus
The majority of passengers on the route London Heathrow – Washington DC prefer to fly with Aer Lingus.
Aer Lingus
32 %
TAP Portugal
25 %
Icelandair
18 %
Cheapest weekday: Saturday
Compared to other weekdays, flights are cheapest on Saturday.
Stopover flights are the cheapest connection
Flights with a stopover are on average £183.00 cheaper than direct flights.
non stop flight
1 stop
08h 05min
15h 25min
655 £
472 £
Favourite connection: via Dublin
Stopover flights on this route are especially popular via Dublin, making up 33 % of bookings.
Route
bookings
1 stopover Dublin
13h 55min, from 652 £
33 %
1 stopover Lisbon
12h 25min, from 540 £
26 %
1 stopover Reykjavik-Keflavik International
15h 25min, from 472 £
19 %
Important flight information
Flight information: London Heathrow - Washington DC
| Cheapest outbound flight from | 504,99 £ |
|---|---|
| Outbound and return from | 362,99 £ |
| Flight duration | min. 08:20 / max. 08:45 |
| Return flight duration | min. 07:00/ max. 07:25 |
| Distance | 5908 km |
| Flights per week | 52 |
| Departure airport | Airport London Heathrow (LHR) |
| Arrival airport | Airport Washington DC - Dulles International Airport, DC (IAD) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight London Heathrow - New York from 264 £
- Flight London Heathrow - Los Angeles from 352 £
- Flight London Heathrow - Miami from 330 £
- Flight London Heathrow - Boston from 301 £
- Flight London Heathrow - Baltimore from 492 £
- Flight London Heathrow - Dallas from 638 £
- Flight London Heathrow - Newark from 300 £
- Flight London Heathrow - Chicago O'Hare from 344 £
- Flight London Heathrow - Seattle-Tacoma from 444 £
- Flight London Heathrow - San Francisco from 355 £
Alternative flights to Washington DC
- Flight London Gatwick - Washington DC from 341 £
- Flight Manchester - Washington DC from 545 £
Popular destinations for onward travel
- Flight Washington DC - Monrovia from 969 £
Flight destinations with a similar price
- Flight London Heathrow - Los Angeles from 352 £
- Flight London Heathrow - Miami from 330 £
- Flight London Heathrow - Goa from 383 £
- Flight London Heathrow - Amritsar from 385 £
- Flight London Heathrow - Bangkok from 339 £
- Flight London Heathrow - Nairobi from 376 £
- Flight London Heathrow - Doha from 330 £
- Flight London Heathrow - Kuala Lumpur from 337 £
- Flight London Heathrow - Chennai from 366 £
- Flight London Heathrow - Tokyo Narita from 344 £