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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: Thu 12 Mar 2015 Return: Thu 19 Mar 2015 Trip spans 8 days
Icelandair
Icelandair
LGW
08:30
IAD
19:30
11h 00m
1 stop
IAD
16:45
LGW
03:15
10h 30m
1 stop
Depart: Mon 2 Feb 2015 Return: Tue 24 Feb 2015 Trip spans 23 days
Delta
Delta
EDI
01:35
IAD
15:00
13h 25m
1 stop
IAD
12:04
EDI
00:40
12h 36m
2 stops
Depart: Wed 28 Jan 2015 Return: Tue 24 Feb 2015 Trip spans 28 days
Icelandair
Icelandair
LHR
15:35
IAD
18:30
26h 55m
1 stop
IAD
14:45
LHR
01:30
10h 45m
1 stop
Depart: Wed 29 Apr 2015 Return: Tue 12 May 2015 Trip spans 14 days
Icelandair
Icelandair
MAN
09:25
IAD
20:10
10h 45m
1 stop
IAD
16:35
MAN
02:35
10h 00m
1 stop
Depart: Thu 22 Jan 2015 Return: Mon 26 Jan 2015 Trip spans 5 days
Brussels Airlines
Brussels Airlines
MAN
01:35
IAD
14:50
13h 15m
1 stop
IAD
12:45
MAN
07:15
18h 30m
1 stop
Depart: Sun 25 Jan 2015 Return: Sun 1 Feb 2015 Trip spans 8 days
United
United
MAN
04:00
IAD
11:21
31h 21m
2 stops
IAD
03:35
MAN
22:50
19h 15m
2 stops
Depart: Wed 25 Feb 2015 Return: Tue 3 Mar 2015 Trip spans 7 days
Lufthansa
Lufthansa
MAN
01:15
IAD
14:35
13h 20m
1 stop
IAD
13:05
MAN
01:15
12h 10m
1 stop
Depart: Thu 19 Feb 2015 Return: Mon 2 Mar 2015 Trip spans 12 days
Brussels Airlines
Brussels Airlines
EDI
01:00
IAD
14:50
13h 50m
1 stop
IAD
12:45
EDI
05:05
16h 20m
1 stop
Depart: Fri 29 May 2015 Return: Mon 1 Jun 2015 Trip spans 4 days
Aeroflot
Aeroflot
LHR
07:00
IAD
13:50
30h 50m
1 stop
IAD
10:50
LHR
03:05
16h 15m
1 stop
Depart: Wed 18 Mar 2015 Return: Mon 23 Mar 2015 Trip spans 6 days
Delta
Delta
LHR
07:25
IAD
16:00
8h 35m
nonstop
IAD
13:00
LHR
23:05
10h 05m
1 stop
Depart: Mon 23 Mar 2015 Return: Sun 12 Apr 2015 Trip spans 21 days
Multiple Airlines
Multiple Airlines
MAN
02:15
IAD
16:55
14h 40m
1 stop
IAD
13:50
MAN
01:15
11h 25m
1 stop
Depart: Wed 1 Apr 2015 Return: Thu 9 Apr 2015 Trip spans 9 days
Lufthansa
Lufthansa
LHR
06:30
IAD
20:45
14h 15m
1 stop
IAD
18:30
LHR
06:40
12h 10m
1 stop
Depart: Thu 15 Jan 2015 Return: Mon 19 Jan 2015 Trip spans 5 days
Air France
Air France
MAN
03:45
IAD
16:25
12h 40m
1 stop
IAD
13:55
MAN
01:00
11h 05m
1 stop
Depart: Wed 7 Jan 2015 Return: Fri 16 Jan 2015 Trip spans 10 days
SAS
SAS
MAN
15:55
IAD
15:15
23h 20m
1 stop
IAD
12:15
MAN
23:40
11h 25m
1 stop
Depart: Thu 2 Apr 2015 Return: Tue 21 Apr 2015 Trip spans 20 days
Multiple Airlines
Multiple Airlines
LHR
02:00
IAD
15:05
13h 05m
1 stop
IAD
05:20
LHR
12:55
7h 35m
nonstop
Depart: Tue 24 Mar 2015 Return: Tue 21 Apr 2015 Trip spans 29 days
Delta
Delta
LHR
06:10
DCA
19:00
12h 50m
1 stop
DCA
14:04
LHR
23:45
9h 41m
1 stop
Depart: Sat 7 Feb 2015 Return: Sat 21 Feb 2015 Trip spans 15 days
SAS
SAS
LHR
01:40
IAD
15:15
13h 35m
1 stop
IAD
12:15
LHR
03:05
14h 50m
1 stop
Depart: Wed 25 Mar 2015 Return: Sat 25 Apr 2015 Trip spans 32 days
Air France
Air France
EDI
02:35
IAD
17:20
14h 45m
1 stop
IAD
14:50
EDI
01:50
11h 00m
1 stop
Depart: Wed 24 Dec 2014 Return: Sun 11 Jan 2015 Trip spans 19 days
United
United
MAN
04:00
DCA
17:48
13h 48m
1 stop
DCA
16:35
MAN
21:30
28h 55m
1 stop
Depart: Sun 4 Jan 2015 Return: Wed 28 Jan 2015 Trip spans 25 days
Multiple Airlines
Multiple Airlines
LCY
13:00
IAD
15:35
26h 35m
1 stop
IAD
13:05
LCY
22:55
9h 50m
1 stop
Change your search
Airports
Origin

London
only £423
only £561
only £404
Manchester
£427
Edinburgh
£408
Destination

Washington
only £404
only £473