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

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

Book cheap flights from London to Washington

(Round-trip)
Depart: Tue Apr 14 2015 Return: Sun Apr 19 2015 Trip spans 6 days
Icelandair
Icelandair
LGW
9:10a
IAD
8:10p
11h 00m
1 stop
IAD
4:35p
LGW
2:45a
10h 10m
1 stop
Depart: Mon Apr 13 2015 Return: Sun Apr 19 2015 Trip spans 7 days
Icelandair
Icelandair
LHR
5:10p
IAD
8:10p
27h 00m
1 stop
IAD
4:35p
LHR
11:10a
18h 35m
1 stop
Depart: Sat Feb 14 2015 Return: Mon Feb 16 2015 Trip spans 3 days
United
United
LHR
1:00p
IAD
1:56p
24h 56m
1 stop
IAD
4:30a
LHR
12:00p
7h 30m
nonstop
Depart: Thu Feb 5 2015 Return: Mon Feb 9 2015 Trip spans 5 days
Delta
Delta
LHR
3:40a
IAD
3:35p
11h 55m
1 stop
IAD
1:50p
LHR
12:25a
10h 35m
1 stop
Depart: Sun Feb 22 2015 Return: Fri Mar 6 2015 Trip spans 13 days
Multiple Airlines
Multiple Airlines
LHR
1:45a
IAD
8:15p
42h 30m
3 stops
IAD
1:30p
LHR
1:05p
23h 35m
3 stops
Depart: Thu Feb 12 2015 Return: Tue Feb 17 2015 Trip spans 6 days
American Airlines
American Airlines
LHR
7:35a
DCA
6:58p
11h 23m
1 stop
DCA
7:47a
LHR
10:35p
14h 48m
1 stop
Depart: Thu Feb 19 2015 Return: Sat Feb 28 2015 Trip spans 10 days
United
United
LHR
11:05a
DCA
10:55p
11h 50m
1 stop
DCA
1:04p
LHR
12:15a
11h 11m
1 stop
Depart: Sun Feb 1 2015 Return: Mon Feb 23 2015 Trip spans 23 days
Aeroflot
Aeroflot
LHR
5:30p
IAD
12:20p
18h 50m
1 stop
IAD
9:05a
LHR
11:05a
26h 00m
1 stop
Depart: Fri Jan 30 2015 Return: Mon Feb 2 2015 Trip spans 4 days
SAS
SAS
LHR
1:40a
IAD
3:15p
13h 35m
1 stop
IAD
12:15p
LHR
6:00a
17h 45m
1 stop
Depart: Mon May 18 2015 Return: Sat May 23 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
LGW
1:10p
IAD
7:10p
30h 00m
1 stop
IAD
7:25p
LGW
1:50a
30h 25m
1 stop
Depart: Thu Apr 2 2015 Return: Mon Apr 6 2015 Trip spans 5 days
Aer Lingus
Aer Lingus
LHR
3:30a
IAD
4:25p
12h 55m
1 stop
IAD
6:20p
LHR
4:30a
10h 10m
1 stop
Depart: Tue Jun 30 2015 Return: Tue Aug 18 2015 Trip spans 50 days
$1050
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Turkish Airlines
Turkish Airlines
LHR
12:30p
IAD
7:10p
30h 40m
1 stop
IAD
7:25p
LHR
1:05a
29h 40m
1 stop
Change your search
Direct flights LON to WAS on Delta
Flight # Depart LHR Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
4382 11:25 am 3:00 pm Mar 4 - Mar 7
4382 11:25 am 3:00 pm Feb 6 - Mar 2
4382 11:25 am 3:00 pm Jan 25 - Feb 5
Airports
Origin

London
only $666
only $639
Destination

Washington
only $639
only $707