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Find Deals on Flights 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: Sat Dec 12 2015 Return: Mon Dec 14 2015 Trip spans 3 days
United
United
IAD
5:20p
LHR
5:30a
12h 10m
1 stop
LHR
2:40a
IAD
3:25p
12h 45m
1 stop
Depart: Thu Nov 19 2015 Return: Sat Nov 28 2015 Trip spans 10 days
Icelandair
Icelandair
IAD
2:45p
LGW
1:15a
10h 30m
1 stop
LGW
7:30a
IAD
6:30p
11h 00m
1 stop
Depart: Wed Oct 14 2015 Return: Wed Oct 21 2015 Trip spans 8 days
Icelandair
Icelandair
IAD
4:35p
LHR
11:10a
18h 35m
1 stop
LHR
5:10p
IAD
8:10p
27h 00m
1 stop
Depart: Sat Nov 7 2015 Return: Sat Nov 14 2015 Trip spans 8 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LGW
11:25p
28h 55m
1 stop
LGW
12:20p
IAD
6:25p
30h 05m
1 stop
Depart: Thu Jan 28 2016 Return: Thu Feb 4 2016 Trip spans 8 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LHR
11:00a
16h 30m
1 stop
LHR
2:55a
IAD
6:25p
39h 30m
1 stop
Depart: Wed Jan 6 2016 Return: Sat Jan 16 2016 Trip spans 11 days
United
United
DCA
11:35a
LHR
9:30p
9h 55m
1 stop
LHR
7:05a
DCA
7:00p
11h 55m
1 stop
Depart: Sun Dec 20 2015 Return: Tue Dec 29 2015 Trip spans 10 days
Virgin Atlantic
Virgin Atlantic
IAD
1:05a
LHR
10:10a
9h 05m
1 stop
LHR
5:55a
IAD
2:20p
8h 25m
nonstop
Depart: Sat Aug 22 2015 Return: Sun Aug 23 2015 Trip spans 2 days
SAS
SAS
IAD
1:15p
LHR
7:00a
17h 45m
1 stop
LHR
5:05p
IAD
12:35a
31h 30m
2 stops
Depart: Tue Jan 26 2016 Return: Wed Feb 3 2016 Trip spans 9 days
Air Canada
Air Canada
DCA
11:35a
LHR
11:35p
12h 00m
2 stops
LHR
7:05a
DCA
7:00p
11h 55m
1 stop
Depart: Mon Jan 4 2016 Return: Sun Jan 10 2016 Trip spans 7 days
Delta
Delta
IAD
12:15p
LHR
11:35p
11h 20m
1 stop
LHR
5:55a
IAD
2:20p
8h 25m
nonstop
Depart: Mon Sep 21 2015 Return: Mon Oct 5 2015 Trip spans 15 days
Aer Lingus
Aer Lingus
IAD
1:20p
LGW
5:20a
16h 00m
1 stop
LGW
5:10a
IAD
4:35p
11h 25m
1 stop
Depart: Tue Jul 28 2015 Return: Wed Aug 26 2015 Trip spans 30 days
$1073
Select
Aer Lingus
Aer Lingus
IAD
6:20p
LHR
4:30a
10h 10m
1 stop
LHR
3:30a
IAD
4:30p
13h 00m
1 stop
Depart: Sun Jan 17 2016 Return: Sat Jan 23 2016 Trip spans 7 days
$1100
Select
Alitalia
Alitalia
IAD
1:50p
LCY
5:35a
15h 45m
2 stops
LCY
5:50a
IAD
4:20p
34h 30m
2 stops
Depart: Sat Jul 4 2015 Return: Wed Jul 8 2015 Trip spans 5 days
$1333
Select
Aeroflot
Aeroflot
DCA
5:45a
LHR
3:05a
45h 20m
2 stops
LHR
9:25a
DCA
11:31p
38h 06m
2 stops
Depart: Thu Jul 30 2015 Return: Wed Sep 2 2015 Trip spans 35 days
$1382
Select
Aeroflot
Aeroflot
IAD
11:00a
LHR
11:00p
36h 00m
1 stop
LHR
9:25a
IAD
1:55p
28h 30m
1 stop
Depart: Thu Jul 2 2015 Return: Sun Jul 5 2015 Trip spans 4 days
$1461
Select
American Airlines
American Airlines
DCA
1:59p
LHR
1:30a
11h 31m
1 stop
LHR
6:05a
DCA
6:04p
11h 59m
1 stop
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 Jun 27 - Sep 10
4383 6:55 pm 7:20 am Jun 29 - Sep 11
Airports
Origin

Washington
only $638
only $843
Destination

London
only $638
only $1100
only $727