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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: Sat 14 Feb 2015 Return: Sun 15 Feb 2015 Trip spans 2 days
United
United
LHR
05:25
IAD
18:33
13h 08m
1 stop
IAD
04:30
LHR
12:00
7h 30m
nonstop
Depart: Thu 2 Apr 2015 Return: Sun 19 Apr 2015 Trip spans 18 days
SAS
SAS
MAN
15:25
IAD
16:00
24h 35m
1 stop
IAD
13:15
MAN
00:35
11h 20m
1 stop
Depart: Thu 12 Mar 2015 Return: Sat 21 Mar 2015 Trip spans 10 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 Mar 2015 Return: Wed 18 Mar 2015 Trip spans 16 days
Icelandair
Icelandair
LHR
15:35
IAD
18:30
26h 55m
1 stop
IAD
16:45
LHR
03:30
10h 45m
1 stop
Depart: Wed 15 Apr 2015 Return: Tue 21 Apr 2015 Trip spans 7 days
Icelandair
Icelandair
MAN
09:25
IAD
20:10
10h 45m
1 stop
IAD
16:35
MAN
02:35
10h 00m
1 stop
Depart: Tue 24 Mar 2015 Return: Tue 7 Apr 2015 Trip spans 15 days
Multiple Airlines
Multiple Airlines
MAN
02:35
IAD
14:50
12h 15m
1 stop
IAD
14:05
MAN
01:55
11h 50m
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
23:00
10h 45m
1 stop
Depart: Wed 28 Jan 2015 Return: Wed 4 Feb 2015 Trip spans 8 days
Delta
Delta
LHR
06:25
IAD
15:00
8h 35m
nonstop
IAD
00:50
LHR
10:10
9h 20m
1 stop
Depart: Tue 23 Jun 2015 Return: Wed 8 Jul 2015 Trip spans 16 days
Lufthansa
Lufthansa
LHR
02:30
IAD
14:25
11h 55m
1 stop
IAD
14:05
LHR
00:40
10h 35m
1 stop
Depart: Sun 8 Mar 2015 Return: Tue 24 Mar 2015 Trip spans 17 days
Brussels Airlines
Brussels Airlines
MAN
13:45
IAD
14:50
25h 05m
1 stop
IAD
13:45
MAN
02:10
12h 25m
1 stop
Depart: Wed 3 Jun 2015 Return: Wed 24 Jun 2015 Trip spans 22 days
Lufthansa
Lufthansa
LCY
05:10
IAD
16:55
11h 45m
1 stop
IAD
11:25
LCY
22:10
10h 45m
1 stop
Depart: Sat 27 Jun 2015 Return: Thu 30 Jul 2015 Trip spans 34 days
Multiple Airlines
Multiple Airlines
LHR
02:00
IAD
15:05
13h 05m
1 stop
IAD
18:00
LHR
01:20
7h 20m
nonstop
Depart: Thu 15 Jan 2015 Return: Thu 22 Jan 2015 Trip spans 8 days
Delta
Delta
LHR
05:10
DCA
16:53
11h 43m
1 stop
DCA
13:08
LHR
00:30
11h 22m
1 stop
Depart: Wed 25 Mar 2015 Return: Fri 24 Apr 2015 Trip spans 31 days
Air France
Air France
EDI
02:35
IAD
17:20
14h 45m
1 stop
IAD
14:50
EDI
07:35
16h 45m
1 stop
Depart: Tue 6 Jan 2015 Return: Fri 16 Jan 2015 Trip spans 11 days
Delta
Delta
MAN
01:45
IAD
15:00
13h 15m
1 stop
IAD
14:15
MAN
23:50
9h 35m
1 stop
Depart: Mon 5 Jan 2015 Return: Fri 16 Jan 2015 Trip spans 12 days
Virgin Atlantic
Virgin Atlantic
MAN
13:25
IAD
15:00
25h 35m
1 stop
IAD
06:30
MAN
22:30
16h 00m
1 stop
Depart: Mon 22 Jun 2015 Return: Sat 4 Jul 2015 Trip spans 13 days
Air Canada
Air Canada
LHR
08:35
DCA
20:29
11h 54m
1 stop
DCA
12:25
LHR
22:30
10h 05m
1 stop
Depart: Fri 3 Apr 2015 Return: Tue 7 Apr 2015 Trip spans 5 days
Austrian Airlines
Austrian Airlines
LHR
02:00
IAD
15:05
13h 05m
1 stop
IAD
13:50
LHR
09:40
19h 50m
1 stop
Depart: Wed 20 May 2015 Return: Wed 10 Jun 2015 Trip spans 22 days
Delta
Delta
MAN
07:00
DCA
21:10
14h 10m
1 stop
DCA
14:04
MAN
01:25
11h 21m
1 stop
Depart: Wed 10 Jun 2015 Return: Wed 24 Jun 2015 Trip spans 15 days
Delta
Delta
EDI
04:25
DCA
23:06
18h 41m
2 stops
DCA
08:05
EDI
01:50
17h 45m
2 stops
Change your search
Airports
Origin

London
only £393
only £482
only £404
Manchester
£395
Edinburgh
£486
Destination

Washington
only £393
only £486