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Find flight deals from United Kingdom to Washington Dulles Intl

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

Book cheap flights to Washington Dulles Intl

(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: Tue 20 Jan 2015 Return: Wed 4 Feb 2015 Trip spans 16 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: 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: Sun 18 Jan 2015 Return: Wed 4 Feb 2015 Trip spans 18 days
United
United
EDI
04:05
IAD
21:09
17h 04m
2 stops
IAD
07:15
EDI
21:35
14h 20m
2 stops
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
£415
Manchester
£405
Destination

Washington
£405