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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: Thu 19 Mar 2015 Return: Thu 7 May 2015 Trip spans 50 days
Delta
Delta
EDI
07:20
IAD
21:12
13h 52m
2 stops
IAD
14:40
EDI
01:40
11h 00m
1 stop
Depart: Fri 5 Dec 2014 Return: Sun 7 Dec 2014 Trip spans 3 days
United
United
GLA
04:00
IAD
11:25
31h 25m
1 stop
IAD
03:14
GLA
21:30
18h 16m
2 stops
Depart: Thu 22 Jan 2015 Return: Tue 27 Jan 2015 Trip spans 6 days
Delta
Delta
LHR
06:25
IAD
15:00
8h 35m
nonstop
IAD
10:50
LHR
21:05
10h 15m
1 stop
Depart: Thu 5 Mar 2015 Return: Wed 18 Mar 2015 Trip spans 13 days
Icelandair
Icelandair
LGW
07:30
IAD
18:30
11h 00m
1 stop
IAD
16:45
LGW
03:15
10h 30m
1 stop
Depart: Sun 22 Feb 2015 Return: Thu 26 Feb 2015 Trip spans 5 days
Icelandair
Icelandair
LHR
08:00
IAD
18:30
10h 30m
1 stop
IAD
14:45
LHR
09:30
18h 45m
1 stop
Depart: Sun 14 Dec 2014 Return: Wed 28 Jan 2015 Trip spans 46 days
Multiple Airlines
Multiple Airlines
MAN
09:15
IAD
15:00
29h 45m
1 stop
IAD
10:50
MAN
23:50
13h 00m
2 stops
Depart: Sun 29 Mar 2015 Return: Thu 16 Apr 2015 Trip spans 19 days
Aeroflot
Aeroflot
LHR
18:45
IAD
13:50
19h 05m
1 stop
IAD
10:50
LHR
23:00
36h 10m
1 stop
Depart: Mon 1 Dec 2014 Return: Fri 12 Dec 2014 Trip spans 12 days
Multiple Airlines
Multiple Airlines
BHX
12:25
IAD
15:35
27h 10m
1 stop
IAD
01:00
BHX
22:25
21h 25m
2 stops
Depart: Sun 30 Nov 2014 Return: Mon 8 Dec 2014 Trip spans 9 days
Delta
Delta
MAN
13:25
IAD
15:00
25h 35m
1 stop
IAD
14:15
MAN
23:50
9h 35m
1 stop
Depart: Thu 26 Mar 2015 Return: Thu 16 Apr 2015 Trip spans 22 days
SAS
SAS
LHR
02:40
IAD
16:15
13h 35m
1 stop
IAD
13:15
LHR
07:00
17h 45m
1 stop
Depart: Wed 24 Dec 2014 Return: Tue 13 Jan 2015 Trip spans 21 days
United
United
MAN
04:00
IAD
07:35
27h 35m
2 stops
IAD
07:15
MAN
21:30
14h 15m
2 stops
Depart: Sun 15 Mar 2015 Return: Wed 13 May 2015 Trip spans 60 days
Austrian Airlines
Austrian Airlines
LHR
05:05
IAD
15:40
34h 35m
1 stop
IAD
13:50
LHR
12:30
22h 40m
1 stop
Depart: Thu 23 Apr 2015 Return: Mon 27 Apr 2015 Trip spans 5 days
SAS
SAS
MAN
15:25
IAD
16:00
24h 35m
1 stop
IAD
13:15
MAN
09:40
20h 25m
1 stop
Depart: Thu 25 Dec 2014 Return: Sun 25 Jan 2015 Trip spans 32 days
American Airlines
American Airlines
LHR
12:00
IAD
20:15
8h 15m
nonstop
IAD
08:40
LHR
21:05
12h 25m
1 stop
Depart: Wed 18 Mar 2015 Return: Thu 7 May 2015 Trip spans 51 days
United
United
EDI
04:05
IAD
07:41
27h 36m
2 stops
IAD
02:00
EDI
00:45
22h 45m
1 stop
Depart: Tue 26 May 2015 Return: Wed 24 Jun 2015 Trip spans 30 days
SAS
SAS
BHX
15:15
IAD
16:00
24h 45m
1 stop
IAD
13:15
BHX
00:30
11h 15m
1 stop
Depart: Tue 7 Apr 2015 Return: Sun 12 Apr 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
LGW
06:05
IAD
19:10
37h 05m
1 stop
IAD
19:25
LGW
07:05
35h 40m
1 stop
Depart: Sun 18 Jan 2015 Return: Thu 22 Jan 2015 Trip spans 5 days
Turkish Airlines
Turkish Airlines
EDI
11:05
IAD
18:25
31h 20m
1 stop
IAD
18:30
EDI
01:10
30h 40m
1 stop
Depart: Mon 22 Dec 2014 Return: Thu 8 Jan 2015 Trip spans 18 days
Lufthansa
Lufthansa
LHR
03:20
IAD
15:55
12h 35m
1 stop
IAD
04:30
LHR
12:00
7h 30m
nonstop
Depart: Fri 19 Dec 2014 Return: Sun 11 Jan 2015 Trip spans 24 days
Lufthansa
Lufthansa
LCY
03:10
IAD
15:55
12h 45m
1 stop
IAD
13:05
LCY
23:30
10h 25m
1 stop
Change your search
Airports
Origin

Birmingham
£470
Glasgow
£402
London
only £403
only £403
only £676
Edinburgh
£368
Manchester
£434
Destination

Washington
£368