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Find Flight Deals from Washington to London (WAS - LON)

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

Book cheap flights from Washington to London

(Round-trip)
Depart: Fri May 1 2015 Return: Sun May 3 2015 Trip spans 3 days
United
United
IAD
6:20p
LHR
4:30a
10h 10m
1 stop
LHR
2:50a
IAD
3:25p
12h 35m
1 stop
Depart: Thu Sep 24 2015 Return: Tue Sep 29 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
LGW
1:50a
30h 25m
1 stop
LGW
1:10p
IAD
7:10p
30h 00m
1 stop
Depart: Mon Aug 17 2015 Return: Fri Sep 4 2015 Trip spans 19 days
Aeroflot
Aeroflot
IAD
11:00a
LHR
12:25p
25h 25m
1 stop
LHR
6:45p
IAD
1:55p
19h 10m
1 stop
Depart: Wed Apr 8 2015 Return: Mon Apr 20 2015 Trip spans 13 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
LHR
12:00p
16h 35m
1 stop
LHR
6:30p
IAD
7:10p
24h 40m
1 stop
Depart: Tue Jun 9 2015 Return: Thu Jun 11 2015 Trip spans 3 days
Air Canada
Air Canada
DCA
12:25p
LHR
1:25a
13h 00m
2 stops
LHR
2:00a
DCA
7:02p
17h 02m
2 stops
Depart: Wed Apr 1 2015 Return: Thu Apr 2 2015 Trip spans 2 days
Virgin Atlantic
Virgin Atlantic
IAD
6:52a
LHR
10:20p
15h 28m
1 stop
LHR
7:00a
IAD
3:15p
8h 15m
nonstop
Depart: Sat Apr 18 2015 Return: Sun Apr 19 2015 Trip spans 2 days
Lufthansa
Lufthansa
IAD
5:20a
LHR
12:55p
7h 35m
nonstop
LHR
6:55a
IAD
8:00p
13h 05m
1 stop
Depart: Fri May 22 2015 Return: Mon May 25 2015 Trip spans 4 days
SAS
SAS
IAD
1:15p
LHR
8:00a
42h 45m
2 stops
LHR
2:40a
IAD
4:00p
13h 20m
1 stop
Depart: Fri Sep 25 2015 Return: Thu Oct 8 2015 Trip spans 14 days
Icelandair
Icelandair
IAD
4:35p
LGW
2:35a
10h 00m
1 stop
LGW
9:10a
IAD
8:10p
11h 00m
1 stop
Depart: Fri Apr 24 2015 Return: Sat Apr 25 2015 Trip spans 2 days
Iberia
Iberia
DCA
9:30a
LGW
12:55a
15h 25m
2 stops
LGW
3:55p
DCA
11:26p
31h 31m
2 stops
Depart: Thu Aug 13 2015 Return: Mon Aug 31 2015 Trip spans 19 days
Icelandair
Icelandair
IAD
4:35p
LHR
11:10a
18h 35m
1 stop
LHR
5:10p
IAD
1:45p
20h 35m
1 stop
Depart: Fri Aug 21 2015 Return: Sun Aug 23 2015 Trip spans 3 days
KLM Royal Dutch
KLM Royal Dutch
IAD
1:15p
LHR
2:05a
12h 50m
1 stop
LHR
2:30a
IAD
4:30p
14h 00m
1 stop
Depart: Thu May 14 2015 Return: Sun May 17 2015 Trip spans 4 days
SWISS
SWISS
IAD
1:20p
LHR
11:15p
33h 55m
1 stop
LHR
2:00a
IAD
4:15p
14h 15m
1 stop
Depart: Sun Jun 21 2015 Return: Tue Jun 30 2015 Trip spans 10 days
Aer Lingus
Aer Lingus
IAD
1:20p
LGW
9:20a
20h 00m
1 stop
LGW
3:00p
IAD
4:35p
25h 35m
1 stop
Depart: Mon Jun 15 2015 Return: Tue Jun 30 2015 Trip spans 16 days
$1064
Select
Major Airline
Major Airline
IAD
1:20p
LGW
11:25p
10h 05m
1 stop
LGW
3:00p
IAD
4:35p
25h 35m
1 stop
Depart: Thu Jun 25 2015 Return: Tue Jul 14 2015 Trip spans 20 days
$1126
Select
Aeroflot
Aeroflot
DCA
10:03a
LHR
11:00p
36h 57m
2 stops
LHR
9:25a
DCA
11:06p
37h 41m
2 stops
Direct flights WAS to LON on Delta
Flight # Depart IAD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
4383 6:55 pm 7:20 am Mar 29 - Apr 20
4383 6:55 pm 7:20 am Apr 22 - May 4
4383 6:55 pm 7:20 am May 5 - May 31
Airports
Origin

Washington
only $791
only $869
Destination

London
only $791
only $804