| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Washington DC London Heathrow | Outbound 10/03/25 1 Stopover (LIS) TP0232, TP1356 12h 20min | Return - |  TAP Air Portugal |  | $260 | ||
| Washington DC London Heathrow | Outbound 11/03/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Return 11/12/25 1 Stopover (KEF) FI0451, FI0645 11h 05min |  Icelandair |  | ? | $501 | |
| Best option Washington DC London Heathrow | Outbound 10/02/25 direct VS0022 07h 30min | Return 10/09/25 direct VS0021 08h 25min |  Virgin Atlantic Airways | | $566 | ||
| Washington DC London Heathrow | Outbound 10/02/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 10/09/25 1 Stopover (KEF) FI0455, FI0649 29h 45min | Icelandair |  | $508 | ||
| Washington DC London Heathrow | Outbound 10/02/25 1 Stopover (YYZ) UA8693, UA8306 11h 10min | Return 10/09/25 1 Stopover (MUC) LH2471, LH0414 15h 25min |  United Airlines |  | ? | $531 | |
| Washington DC London Heathrow | Outbound 10/02/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 10/09/25 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | ? | $543 | |
| Washington DC London Heathrow | Outbound 10/02/25 1 Stopover (YYZ) UA8693, UA8306 11h 10min | Return 10/09/25 1 Stopover (VIE) OS0458, OS0093 13h 35min | United Airlines |  | $555 | ||
| Washington DC London Heathrow | Outbound 10/02/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 10/09/25 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair |  | $572 | ||
| Washington DC London Heathrow | Outbound 10/02/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 10/09/25 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | ? | $585 | |
| Washington DC London Heathrow | Outbound 10/02/25 direct IB3631 07h 20min | Return 10/09/25 direct IB3632 08h 15min |  Iberia |  | ? | $594 |
Stops
- Direct flight
Airline
- Icelandair
- United Airlines
- Virgin Atlantic Airways
- SAS Scandinavian Airlines
- TAP Air Portugal
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 | $259.97 |
|---|---|
| Roundtrip from | $500.61 |
| 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 $460
- Flight Boston - London Heathrow from $447
- Flight Detroit - London Heathrow from $594
- Flight Chicago O'Hare - London Heathrow from $413
- Flight Baltimore - London Heathrow from $506
- Flight Dallas - London Heathrow from $650
- Flight New York - London Heathrow from $469
- Flight Cleveland - London Heathrow from $584
- Flight Atlanta - London Heathrow from $412
Flight destinations with a similar price
- Flight London Heathrow - Colombo from $439
- Flight London Heathrow - Dubai from $1,714
- Flight London Heathrow - Sydney from $1,294
- Flight London Heathrow - Toronto from $413
- Flight London Heathrow - Prague from $152
- Flight London Heathrow - Cologne from $164
- Flight London Heathrow - Dusseldorf from $113
- Flight London Heathrow - Frankfurt from $186
- Flight London Heathrow - Hamburg from $167
- Flight London Heathrow - Munich from $156
Flight destinations with a similar price
- Flight Washington DC - Miami from $272
- Flight Washington DC - Los Angeles from $278
- Flight Washington DC - Austin from $249
- Flight Washington DC - Sacramento from $266
- Flight Washington DC - Dublin from $259