Find Cheap Flights from Washington to London (WAS - LON)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington to London

(Round-trip)
Depart: Thu Feb 8 2018 Return: Tue Feb 20 2018 Trip spans 13 days
Multiple Airlines
Multiple Airlines
IAD
LGW
14h 40m
1 stop
LGW
IAD
31h 55m
1 stop
Depart: Sat Oct 21 2017 Return: Mon Oct 30 2017 Trip spans 10 days
Icelandair
Icelandair
IAD
LGW
18h 35m
1 stop
LGW
IAD
26h 45m
1 stop
Depart: Mon Jan 8 2018 Return: Mon Jan 22 2018 Trip spans 15 days
Aer Lingus
Aer Lingus
IAD
LCY
11h 55m
1 stop
LCY
IAD
11h 45m
1 stop
Depart: Tue Oct 17 2017 Return: Sun Oct 22 2017 Trip spans 6 days
Turkish Airlines
Turkish Airlines
IAD
LGW
29h 15m
1 stop
LGW
IAD
31h 10m
1 stop
Depart: Tue Nov 14 2017 Return: Thu Nov 30 2017 Trip spans 17 days
British Airways
British Airways
DCA
LGW
11h 35m
1 stop
LGW
DCA
28h 45m
1 stop
Depart: Sun Sep 17 2017 Return: Fri Sep 29 2017 Trip spans 13 days
Air Canada
Air Canada
DCA
LGW
10h 45m
1 stop
LGW
DCA
14h 54m
1 stop
Depart: Sun Dec 31 2017 Return: Wed Jan 10 2018 Trip spans 11 days
United
United
DCA
LHR
14h 55m
1 stop
LHR
DCA
13h 48m
1 stop
Depart: Sat Dec 9 2017 Return: Tue Dec 19 2017 Trip spans 11 days
Virgin Atlantic
Virgin Atlantic
DCA
LHR
22h 10m
1 stop
LHR
DCA
15h 14m
1 stop
Depart: Tue Sep 26 2017 Return: Mon Oct 2 2017 Trip spans 7 days
SWISS
SWISS
IAD
LCY
19h 05m
1 stop
LCY
IAD
24h 10m
1 stop
Depart: Fri Oct 20 2017 Return: Wed Oct 25 2017 Trip spans 6 days
Iberia
Iberia
DCA
LGW
11h 38m
1 stop
LGW
DCA
11h 25m
1 stop
Depart: Fri Nov 17 2017 Return: Sat Nov 25 2017 Trip spans 9 days
American Airlines
American Airlines
DCA
LGW
11h 30m
1 stop
LGW
DCA
13h 38m
1 stop
Depart: Fri Nov 17 2017 Return: Sat Nov 25 2017 Trip spans 9 days
Delta
Delta
IAD
LCY
10h 00m
1 stop
LCY
IAD
11h 35m
1 stop
Depart: Sun Nov 12 2017 Return: Thu Nov 16 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
LGW
18h 10m
1 stop
LGW
IAD
12h 30m
1 stop
Depart: Thu Jan 11 2018 Return: Mon Jan 15 2018 Trip spans 5 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Sun Nov 12 2017 Return: Tue Nov 28 2017 Trip spans 17 days
Multiple Airlines
Multiple Airlines
IAD
LGW
18h 10m
1 stop
LGW
IAD
12h 30m
1 stop
Depart: Sat Jan 13 2018 Return: Sun Jan 21 2018 Trip spans 9 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Fri Dec 1 2017 Return: Fri Dec 8 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
LGW
18h 10m
1 stop
LGW
IAD
12h 30m
1 stop
Depart: Sun Jan 14 2018 Return: Fri Jan 19 2018 Trip spans 6 days
$1114
Select
TAP Portugal
TAP Portugal
DCA
LCY
17h 40m
2 stops
LCY
DCA
36h 04m
2 stops
Depart: Wed Feb 14 2018 Return: Mon Feb 19 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Thu Nov 23 2017 Return: Sat Dec 2 2017 Trip spans 10 days
Aer Lingus
Aer Lingus
IAD
LCY
11h 55m
1 stop
LCY
IAD
11h 25m
1 stop
Direct flights WAS to LON on American Airlines
Flight # Depart BWI Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6173 9:25 pm 9:35 am Aug 16 - Oct 27
6173 9:40 pm 9:50 am Aug 17 - Oct 26
Flight # Depart IAD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6167 6:00 pm 6:20 am Aug 16 - Oct 27
6192 10:20 pm 10:30 am Aug 16 - Oct 27
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Washington
only $447
only $672
Destination

London
only $695
only $572
only $447