Flight Routes from London Gatwick to Washington DC

Trip type

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
24/09/26
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
27/09/26
1 Stopover (KEF)
FI0644, FI0472
13h 10min
Icelandair
£439
Best option
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
27/09/26
1 Stopover (KEF)
FI0648, FI0472
10h 20min
Icelandair
£443
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (IST)
TK1930, TK0187
33h 05min
Return
27/09/26
1 Stopover (IST)
TK0188, TK1981
15h 35min
Turkish Airlines
£728
London Gatwick
Washington DC
Please note: transfer for connecting flight
Outbound
22/06/26
1 Stopover (YYZ, YTZ)
TS0123, PD2719
27h 06min
Return
24/06/26
1 Stopover (MCO)
F94355, Z00784
15h 22min
Air Transat, Porter Airlines
£908
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
27/09/26
1 Stopover (KEF)
FI0644, FI0472
13h 10min
Icelandair
£440
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
27/09/26
1 Stopover (KEF)
FI0648, FI0472
10h 20min
Icelandair
£447
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
27/09/26
1 Stopover (KEF)
FI0644, FI0472
13h 10min
Icelandair
£470
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (KEF)
FI0473, FI0645
32h 40min
Return
27/09/26
1 Stopover (KEF)
FI0648, FI0472
10h 20min
Icelandair ?
£516
London Gatwick
Washington DC
Outbound
24/09/26
1 Stopover (LIS)
TP1337, TP0231
28h 35min
Return
27/09/26
1 Stopover (LIS)
TP0234, TP1334
30h 10min
TAP Air Portugal
£614
London Gatwick
Washington DC
Outbound
03/08/26
1 Stopover (LIS)
TP1337, TP0231
27h 45min
Return
20/08/26
1 Stopover (LIS)
TP0234, TP1334
30h 10min
TAP Air Portugal
£719
Prices based on recent searches, subject to last-minute changes
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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 £438.99
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
City-Code - Arrival airport London - Washington DC - Dulles International Airport, DC
Departure airport - Destination country London Gatwick - United States
Departure airport - City-Code London Gatwick - Washington-DC
Alternative routes to United States
Alternative flights to Washington DC
Popular destinations for onward travel
Flight destinations with a similar price