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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: Mon Jun 8 2015 Return: Tue Jun 9 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
1:50p
LHR
1:15a
11h 25m
1 stop
LHR
8:35a
IAD
8:47a
24h 12m
1 stop
Depart: Fri Jun 5 2015 Return: Sat Jun 6 2015 Trip spans 2 days
Air Canada
Air Canada
DCA
4:00p
LHR
1:25a
9h 25m
1 stop
LHR
10:10a
DCA
10:02p
11h 52m
1 stop
Depart: Sat Jun 6 2015 Return: Sun Jun 7 2015 Trip spans 2 days
Air Canada
Air Canada
IAD
4:45a
LHR
10:30p
17h 45m
1 stop
LHR
9:00a
IAD
8:47a
23h 47m
2 stops
Depart: Sat Apr 4 2015 Return: Sun Apr 5 2015 Trip spans 2 days
Virgin Atlantic
Virgin Atlantic
IAD
2:00a
LHR
11:10a
9h 10m
1 stop
LHR
7:00a
IAD
3:15p
8h 15m
nonstop
Depart: Tue Apr 28 2015 Return: Thu Apr 30 2015 Trip spans 3 days
United
United
IAD
1:06p
LHR
10:30p
9h 24m
1 stop
LHR
3:20a
IAD
4:05p
12h 45m
1 stop
Depart: Mon May 4 2015 Return: Wed May 6 2015 Trip spans 3 days
Virgin Atlantic
Virgin Atlantic
DCA
1:30p
LHR
2:05a
12h 35m
1 stop
LHR
6:30a
DCA
6:14p
11h 44m
1 stop
Depart: Mon Apr 6 2015 Return: Wed Apr 8 2015 Trip spans 3 days
Lufthansa
Lufthansa
IAD
6:30p
LHR
6:40a
12h 10m
1 stop
LHR
8:05a
IAD
4:10p
8h 05m
nonstop
Depart: Fri Apr 17 2015 Return: Sun Apr 19 2015 Trip spans 3 days
KLM Royal Dutch
KLM Royal Dutch
IAD
1:24p
LHR
2:05a
12h 41m
1 stop
LHR
4:40a
IAD
4:30p
11h 50m
1 stop
Depart: Fri Apr 24 2015 Return: Sun Apr 26 2015 Trip spans 3 days
Delta
Delta
IAD
1:00p
LHR
12:25a
11h 25m
1 stop
LHR
4:40a
IAD
4:30p
11h 50m
1 stop
Depart: Wed Apr 1 2015 Return: Thu Apr 2 2015 Trip spans 2 days
Air France
Air France
IAD
2:50p
LHR
1:30a
10h 40m
1 stop
LHR
10:25a
IAD
11:00p
12h 35m
1 stop
Depart: Wed Apr 29 2015 Return: Wed May 6 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
4:35p
LTN
5:10a
12h 35m
1 stop
LTN
3:35a
IAD
8:10p
16h 35m
1 stop
Depart: Wed May 27 2015 Return: Thu Jun 11 2015 Trip spans 16 days
Icelandair
Icelandair
IAD
10:10a
LHR
11:10a
25h 00m
1 stop
LHR
5:10p
IAD
8:10p
27h 00m
1 stop
Depart: Thu Aug 6 2015 Return: Wed Sep 9 2015 Trip spans 35 days
Aeroflot
Aeroflot
IAD
11:00a
LHR
11:00p
36h 00m
1 stop
LHR
9:25a
IAD
1:55p
28h 30m
1 stop
Depart: Sun Mar 22 2015 Return: Mon Apr 20 2015 Trip spans 30 days
Turkish Airlines
Turkish Airlines
IAD
8:30p
LGW
2:55a
30h 25m
1 stop
LGW
8:35a
IAD
7:10p
34h 35m
1 stop
Depart: Sun Aug 9 2015 Return: Mon Aug 24 2015 Trip spans 16 days
Multiple Airlines
Multiple Airlines
IAD
4:35p
LGW
2:15p
21h 40m
1 stop
LGW
12:15p
IAD
1:45p
25h 30m
1 stop
Depart: Mon Aug 3 2015 Return: Thu Aug 27 2015 Trip spans 25 days
Icelandair
Icelandair
IAD
4:35p
LGW
2:45a
10h 10m
1 stop
LGW
9:10a
IAD
8:10p
11h 00m
1 stop
Depart: Sat Mar 28 2015 Return: Fri Apr 3 2015 Trip spans 7 days
$1000
Select
SAS
SAS
IAD
2:15p
LHR
4:05a
13h 50m
1 stop
LHR
4:30p
IAD
4:00p
23h 30m
1 stop
Depart: Sun Jul 19 2015 Return: Tue Jul 21 2015 Trip spans 3 days
$1000
Select
British Airways
British Airways
DCA
11:17a
LHR
4:45a
17h 28m
2 stops
LHR
6:15a
DCA
7:27p
13h 12m
1 stop
Depart: Wed Jun 17 2015 Return: Mon Jun 22 2015 Trip spans 6 days
$1027
Select
Aer Lingus
Aer Lingus
IAD
1:20p
LGW
11:40p
10h 20m
1 stop
LGW
5:25a
IAD
4:35p
11h 10m
1 stop
Depart: Sat Mar 7 2015 Return: Tue Mar 24 2015 Trip spans 17 days
$1030
Select
Turkish Airlines
Turkish Airlines
IAD
6:30p
LHR
6:10a
34h 40m
1 stop
LHR
3:55a
IAD
7:25p
39h 30m
1 stop
Change your search
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 7:00 pm 7:20 am Mar 28 - Mar 28
4383 7:15 pm 7:35 am Feb 27 - Mar 7
4383 8:15 pm 7:35 am Mar 24 - Mar 27
4383 8:15 pm 7:35 am Mar 8 - Mar 23
4383 10:35 pm 9:55 am Mar 12 - Mar 26
Airports
Origin

Washington
only $710
only $719
Destination

London
only $710
only $793
only $871