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Find flight deals from United Kingdom to Washington

Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights to Washington

(Round-trip)
Depart: Sun 15 Mar 2015 Return: Wed 18 Mar 2015 Trip spans 4 days
Icelandair
Icelandair
LGW
08:30
IAD
19:30
11h 00m
1 stop
IAD
16:45
LGW
03:15
10h 30m
1 stop
Depart: Sun 1 Mar 2015 Return: Sun 15 Mar 2015 Trip spans 14 days
Icelandair
Icelandair
MAN
07:25
IAD
18:30
11h 05m
1 stop
IAD
16:45
MAN
02:35
9h 50m
1 stop
Depart: Thu 22 Jan 2015 Return: Wed 28 Jan 2015 Trip spans 7 days
Delta
Delta
EDI
01:35
IAD
15:00
13h 25m
1 stop
IAD
10:50
EDI
00:40
13h 50m
2 stops
Depart: Thu 15 Jan 2015 Return: Sun 18 Jan 2015 Trip spans 4 days
Icelandair
Icelandair
LHR
08:00
IAD
18:30
10h 30m
1 stop
IAD
14:45
LHR
01:30
10h 45m
1 stop
Depart: Sat 10 Jan 2015 Return: Mon 12 Jan 2015 Trip spans 3 days
United
United
LHR
13:00
IAD
11:40
22h 40m
1 stop
IAD
04:30
LHR
12:00
7h 30m
nonstop
Depart: Wed 25 Mar 2015 Return: Tue 31 Mar 2015 Trip spans 7 days
Multiple Airlines
Multiple Airlines
BHX
09:55
IAD
10:18
24h 23m
2 stops
IAD
08:30
BHX
01:25
16h 55m
2 stops
Depart: Fri 3 Apr 2015 Return: Sat 18 Apr 2015 Trip spans 16 days
Aeroflot
Aeroflot
LHR
18:45
IAD
13:50
19h 05m
1 stop
IAD
10:50
LHR
12:25
25h 35m
1 stop
Depart: Tue 2 Dec 2014 Return: Mon 8 Dec 2014 Trip spans 7 days
SAS
SAS
MAN
14:25
IAD
15:15
24h 50m
1 stop
IAD
12:15
MAN
23:35
11h 20m
1 stop
Depart: Tue 19 May 2015 Return: Mon 8 Jun 2015 Trip spans 21 days
American Airlines
American Airlines
LHR
10:35
DCA
23:08
12h 33m
1 stop
DCA
14:57
LHR
02:00
11h 03m
1 stop
Depart: Mon 9 Feb 2015 Return: Thu 12 Mar 2015 Trip spans 31 days
United
United
GLA
04:00
IAD
11:21
31h 21m
2 stops
IAD
04:25
GLA
22:30
18h 05m
2 stops
Depart: Sat 14 Feb 2015 Return: Sat 21 Feb 2015 Trip spans 8 days
SAS
SAS
LHR
01:40
IAD
15:15
13h 35m
1 stop
IAD
12:15
LHR
23:00
10h 45m
1 stop
Depart: Mon 1 Dec 2014 Return: Tue 16 Dec 2014 Trip spans 16 days
Lufthansa
Lufthansa
LHR
03:20
IAD
15:55
12h 35m
1 stop
IAD
13:35
LHR
20:50
7h 15m
nonstop
Depart: Sun 14 Dec 2014 Return: Wed 28 Jan 2015 Trip spans 46 days
United
United
MAN
04:00
IAD
07:25
27h 25m
1 stop
IAD
11:50
MAN
04:55
17h 05m
2 stops
Depart: Wed 4 Feb 2015 Return: Wed 11 Feb 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
LHR
01:00
IAD
14:40
13h 40m
1 stop
IAD
17:00
LHR
00:15
7h 15m
nonstop
Depart: Thu 1 Jan 2015 Return: Thu 8 Jan 2015 Trip spans 8 days
Delta
Delta
LHR
06:25
IAD
15:00
8h 35m
nonstop
IAD
10:50
LHR
20:50
10h 00m
1 stop
Depart: Sun 30 Nov 2014 Return: Tue 9 Dec 2014 Trip spans 10 days
Brussels Airlines
Brussels Airlines
LHR
12:50
IAD
14:55
26h 05m
1 stop
IAD
12:50
LHR
07:05
18h 15m
1 stop
Depart: Tue 25 Nov 2014 Return: Sat 29 Nov 2014 Trip spans 5 days
Air Canada
Air Canada
LHR
08:30
IAD
21:00
12h 30m
1 stop
IAD
17:08
LHR
10:30
17h 22m
1 stop
Depart: Sat 18 Apr 2015 Return: Sat 25 Apr 2015 Trip spans 8 days
Turkish Airlines
Turkish Airlines
LGW
13:10
IAD
19:10
30h 00m
1 stop
IAD
19:25
LGW
00:05
28h 40m
1 stop
Depart: Wed 17 Dec 2014 Return: Wed 31 Dec 2014 Trip spans 15 days
KLM Royal Dutch
KLM Royal Dutch
MAN
00:55
IAD
15:35
14h 40m
1 stop
IAD
13:05
MAN
03:00
13h 55m
1 stop
Depart: Mon 22 Dec 2014 Return: Thu 8 Jan 2015 Trip spans 18 days
Virgin Atlantic
Virgin Atlantic
EDI
13:40
IAD
15:00
25h 20m
1 stop
IAD
01:00
EDI
22:20
21h 20m
2 stops
Change your search
Airports
Origin

Birmingham
£457
Glasgow
£479
London
only £424
only £405
Edinburgh
£421
Manchester
£405
Destination

Washington
only £405
only £476