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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 1 Feb 2015 Return: Sun 8 Feb 2015 Trip spans 8 days
Icelandair
Icelandair
LGW
07:30
IAD
18:30
11h 00m
1 stop
IAD
14:45
LGW
01:15
10h 30m
1 stop
Depart: Wed 14 Jan 2015 Return: Sun 25 Jan 2015 Trip spans 12 days
Icelandair
Icelandair
LHR
15:35
IAD
18:30
26h 55m
1 stop
IAD
14:45
LHR
01:30
10h 45m
1 stop
Depart: Thu 19 Feb 2015 Return: Mon 2 Mar 2015 Trip spans 12 days
Delta
Delta
EDI
01:35
IAD
15:00
13h 25m
1 stop
IAD
12:00
EDI
00:40
12h 40m
2 stops
Depart: Sat 10 Jan 2015 Return: Sun 11 Jan 2015 Trip spans 2 days
United
United
LHR
07:00
IAD
15:30
8h 30m
nonstop
IAD
09:51
LHR
20:20
10h 29m
1 stop
Depart: Thu 22 Jan 2015 Return: Mon 26 Jan 2015 Trip spans 5 days
US Airways
US Airways
MAN
05:45
DCA
18:24
12h 39m
1 stop
DCA
13:15
MAN
22:45
9h 30m
1 stop
Depart: Thu 15 Jan 2015 Return: Thu 22 Jan 2015 Trip spans 8 days
American Airlines
American Airlines
LHR
15:00
DCA
10:17
19h 17m
1 stop
DCA
10:03
LHR
01:00
14h 57m
1 stop
Depart: Sun 18 Jan 2015 Return: Mon 26 Jan 2015 Trip spans 9 days
Aeroflot
Aeroflot
LHR
17:30
IAD
12:20
18h 50m
1 stop
IAD
09:05
LHR
11:05
26h 00m
1 stop
Depart: Wed 4 Feb 2015 Return: Wed 11 Mar 2015 Trip spans 35 days
SAS
SAS
MAN
14:25
IAD
15:15
24h 50m
1 stop
IAD
14:15
MAN
01:35
11h 20m
1 stop
Depart: Wed 25 Feb 2015 Return: Mon 9 Mar 2015 Trip spans 12 days
Delta
Delta
LHR
06:25
IAD
15:00
8h 35m
nonstop
IAD
13:00
LHR
23:05
10h 05m
1 stop
Depart: Tue 17 Feb 2015 Return: Sun 1 Mar 2015 Trip spans 13 days
United
United
EDI
04:05
IAD
21:03
16h 58m
2 stops
IAD
07:30
EDI
21:35
14h 05m
2 stops
Depart: Mon 16 Feb 2015 Return: Mon 2 Mar 2015 Trip spans 15 days
Multiple Airlines
Multiple Airlines
EDI
03:25
IAD
15:35
12h 10m
1 stop
IAD
13:50
EDI
06:35
16h 45m
1 stop
Depart: Mon 5 Jan 2015 Return: Thu 15 Jan 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
MAN
13:25
IAD
15:00
25h 35m
1 stop
IAD
13:05
MAN
02:15
13h 10m
1 stop
Depart: Fri 23 Jan 2015 Return: Fri 30 Jan 2015 Trip spans 8 days
SAS
SAS
LHR
01:40
IAD
15:15
13h 35m
1 stop
IAD
12:15
LHR
03:05
14h 50m
1 stop
Depart: Thu 25 Dec 2014 Return: Sun 28 Dec 2014 Trip spans 4 days
KLM Royal Dutch
KLM Royal Dutch
MAN
04:20
IAD
15:35
11h 15m
1 stop
IAD
13:05
MAN
00:05
11h 00m
1 stop
Depart: Sat 21 Feb 2015 Return: Mon 2 Mar 2015 Trip spans 10 days
KLM Royal Dutch
KLM Royal Dutch
EDI
03:25
DCA
21:29
18h 04m
2 stops
DCA
07:05
EDI
21:50
14h 45m
2 stops
Depart: Sat 11 Apr 2015 Return: Thu 16 Apr 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
LHR
12:25
DCA
19:27
55h 02m
4 stops
DCA
11:17
LHR
14:05
50h 48m
4 stops
Depart: Mon 26 Jan 2015 Return: Sat 31 Jan 2015 Trip spans 6 days
US Airways
US Airways
LHR
06:15
IAD
14:25
8h 10m
nonstop
IAD
14:59
LHR
21:05
30h 06m
1 stop
Depart: Thu 30 Apr 2015 Return: Mon 4 May 2015 Trip spans 5 days
Turkish Airlines
Turkish Airlines
LGW
08:35
IAD
19:10
34h 35m
1 stop
IAD
19:25
LGW
00:05
28h 40m
1 stop
Depart: Fri 27 Mar 2015 Return: Sun 5 Apr 2015 Trip spans 10 days
Delta
Delta
LHR
15:05
DCA
10:45
19h 40m
1 stop
DCA
13:15
LHR
02:05
12h 50m
1 stop
Depart: Sat 3 Jan 2015 Return: Sat 10 Jan 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
LCY
06:40
IAD
15:35
32h 55m
1 stop
IAD
13:05
LCY
03:00
13h 55m
1 stop
Change your search
Airports
Origin

London
only £403
only £611
only £385
Manchester
£449
Edinburgh
£403
Destination

Washington
only £385
only £449