Flights from London Gatwick to Washington DC

Our cheapest offers for flights from London Gatwick to Washington DC

Here you can compare cheap flights from London Gatwick (LGW) to Washington DC (IAD) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Washington DC. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Gatwick
Washington DC
Outbound
20/10/25
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
11/11/25
1 Stopover (KEF)
FI0644, FI0470
10h 15min
Icelandair
£461
Best option
London Gatwick
Washington DC
Outbound
09/10/25
1 Stopover (LIS)
TP1335, TP0233
15h 15min
Return
14/10/25
1 Stopover (LIS)
TP0234, TP1336
12h 15min
TAP Air Portugal ?
£536
London Gatwick
Washington DC
Pay attention to transfer at connecting flight
Outbound
22/06/25
1 Stopover (MCO)
Z00783, F94812
27h 44min
Return
05/07/25
1 Stopover (MCO)
F94811, Z00784
15h 28min
Norse Atlantic UK, Frontier Airlines
£591
London Gatwick
Washington DC
Outbound
30/06/25
1 Stopover (IST)
TK1982, TK0187
29h 50min
Return
18/07/25
1 Stopover (IST)
TK0188, TK1981
15h 25min
Turkish Airlines
£763
London Gatwick
Washington DC
Outbound
20/10/25
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
11/11/25
1 Stopover (KEF)
FI0644, FI0470
10h 15min
Icelandair
£481
London Gatwick
Washington DC
Outbound
20/10/25
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
11/11/25
1 Stopover (KEF)
FI0644, FI0470
10h 15min
Icelandair
£483
London Gatwick
Washington DC
Outbound
20/10/25
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
11/11/25
1 Stopover (KEF)
FI0644, FI0470
10h 15min
Icelandair ?
£500
London Gatwick
Washington DC
Outbound
09/10/25
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
14/10/25
1 Stopover (KEF)
FI0644, FI0472
13h 10min
Icelandair ?
£540
London Gatwick
Washington DC
Outbound
17/06/25
2 Stopovers (YYZ, DTW)
TS0283, DL4881, DL3753
18h 15min
Return
01/07/25
2 Stopovers (DTW, YYZ)
DL3736, DL5146, TS0122
23h 45min
Air Transat, Delta Air Lines
£585
London Gatwick
Washington DC
Outbound
13/10/25
1 Stopover (LIS)
TP1337, TP0233
33h 25min
Return
15/10/25
1 Stopover (LIS)
TP0232, TP1336
15h 10min
TAP Air Portugal
£592
Prices based on recent searches, subject to last-minute changes
Page 1 / 4

Tips and tricks to help you find cheap flights from London Gatwick to Washington DC

Favourite airline: Icelandair
The favourite airline for flights from London Gatwick to Washington DC is Icelandair.
Icelandair
94 %
TAP Portugal
6 %
Favourite connection: via Reykjavik-Keflavik
The most popular flights on this route are via Reykjavik-Keflavik and are booked by 94 % of all travellers.
Route
bookings
1 stopover Reykjavik-Keflavik International
11h 15min, from 545 £
94 %
1 stopover Lisbon
13h 15min, from 774 £
6 %

Important flight information

Flight information: London Gatwick - Washington DC

Outbound and return from 460,28 £
Distance 5938 km
Departure airport Airport London Gatwick (LGW)
Arrival airport Airport Washington DC - Dulles International Airport, DC (IAD)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Washington DC
Popular destinations for onward travel
Flight destinations with a similar price