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Find Deals on Flights 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: Sat 14 Nov 2015 Return: Tue 17 Nov 2015 Trip spans 4 days
£373
Select
Icelandair
Icelandair
MAN
07:25
IAD
18:30
11h 05m
1 stop
IAD
14:45
MAN
00:35
9h 50m
1 stop
Depart: Sun 1 Nov 2015 Return: Sun 8 Nov 2015 Trip spans 8 days
£384
Select
Icelandair
Icelandair
LGW
07:30
IAD
18:30
11h 00m
1 stop
IAD
14:45
LGW
01:15
10h 30m
1 stop
Depart: Thu 10 Sep 2015 Return: Sun 13 Sep 2015 Trip spans 4 days
£389
Select
Icelandair
Icelandair
BHX
09:25
IAD
20:10
10h 45m
1 stop
IAD
10:10
BHX
02:25
16h 15m
1 stop
Depart: Tue 20 Oct 2015 Return: Tue 3 Nov 2015 Trip spans 15 days
£392
Select
Icelandair
Icelandair
LHR
09:00
IAD
20:10
11h 10m
1 stop
IAD
14:45
LHR
01:30
10h 45m
1 stop
Depart: Mon 15 Jun 2015 Return: Fri 26 Jun 2015 Trip spans 12 days
£406
Select
Delta
Delta
LHR
07:00
IAD
15:15
8h 15m
nonstop
IAD
02:00
LHR
11:10
9h 10m
1 stop
Depart: Wed 3 Jun 2015 Return: Tue 7 Jul 2015 Trip spans 35 days
£416
Select
Virgin Atlantic
Virgin Atlantic
LHR
07:00
IAD
15:15
8h 15m
nonstop
IAD
02:00
LHR
11:10
9h 10m
1 stop
Depart: Tue 17 Nov 2015 Return: Mon 23 Nov 2015 Trip spans 7 days
£460
Select
Aer Lingus
Aer Lingus
LHR
01:50
IAD
15:20
13h 30m
1 stop
IAD
17:15
LHR
05:30
12h 15m
1 stop
Depart: Tue 18 Aug 2015 Return: Sun 30 Aug 2015 Trip spans 13 days
£463
Select
United
United
BFS
07:10
IAD
08:41
25h 31m
2 stops
IAD
18:00
BFS
00:00
30h 00m
1 stop
Depart: Fri 2 Oct 2015 Return: Sun 11 Oct 2015 Trip spans 10 days
£463
Select
Aer Lingus
Aer Lingus
MAN
04:00
IAD
16:35
12h 35m
1 stop
IAD
18:25
MAN
06:10
11h 45m
1 stop
Depart: Sat 20 Jun 2015 Return: Thu 25 Jun 2015 Trip spans 6 days
£466
Select
Lufthansa
Lufthansa
LHR
12:20
IAD
20:30
8h 10m
nonstop
IAD
05:30
LHR
12:55
7h 25m
nonstop
Depart: Wed 10 Jun 2015 Return: Thu 25 Jun 2015 Trip spans 16 days
£468
Select
United
United
LHR
04:50
IAD
16:20
11h 30m
1 stop
IAD
05:30
LHR
12:55
7h 25m
nonstop
Depart: Wed 16 Sep 2015 Return: Wed 30 Sep 2015 Trip spans 15 days
£468
Select
Aer Lingus
Aer Lingus
LBA
04:10
IAD
16:35
12h 25m
1 stop
IAD
13:20
LBA
22:45
9h 25m
1 stop
Depart: Sun 11 Oct 2015 Return: Mon 19 Oct 2015 Trip spans 9 days
£482
Select
Aer Lingus
Aer Lingus
BHX
04:10
IAD
16:35
12h 25m
1 stop
IAD
18:25
BHX
05:45
11h 20m
1 stop
Depart: Mon 1 Jun 2015 Return: Tue 7 Jul 2015 Trip spans 37 days
£485
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
11:05
IAD
00:41
13h 36m
1 stop
IAD
13:23
LHR
02:05
12h 42m
1 stop
Depart: Sun 14 Jun 2015 Return: Mon 22 Jun 2015 Trip spans 9 days
£488
Select
Brussels Airlines
Brussels Airlines
LHR
13:50
IAD
13:55
24h 05m
1 stop
IAD
13:40
LHR
12:35
22h 55m
1 stop
Depart: Fri 25 Sep 2015 Return: Fri 2 Oct 2015 Trip spans 8 days
£497
Select
Aer Lingus
Aer Lingus
LGW
05:10
IAD
16:35
11h 25m
1 stop
IAD
13:20
LGW
23:25
10h 05m
1 stop
Depart: Thu 19 Nov 2015 Return: Tue 24 Nov 2015 Trip spans 6 days
£522
Select
KLM Royal Dutch
KLM Royal Dutch
MAN
04:20
IAD
15:40
11h 20m
1 stop
IAD
13:00
MAN
22:30
9h 30m
1 stop
Depart: Sat 24 Oct 2015 Return: Fri 30 Oct 2015 Trip spans 7 days
£537
Select
Turkish Airlines
Turkish Airlines
LGW
13:10
IAD
20:25
31h 15m
1 stop
IAD
20:30
LGW
01:55
30h 25m
1 stop
Depart: Thu 20 Aug 2015 Return: Mon 24 Aug 2015 Trip spans 5 days
£590
Select
SAS
SAS
MAN
06:20
IAD
16:00
33h 40m
1 stop
IAD
13:15
MAN
00:35
11h 20m
1 stop
Depart: Fri 7 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 19 days
£662
Select
Turkish Airlines
Turkish Airlines
EDI
07:50
IAD
19:10
35h 20m
1 stop
IAD
19:25
EDI
01:50
30h 25m
1 stop
Airports
Origin

Belfast
£463
Leeds
£468
London
only £392
only £384
Manchester
£373
Edinburgh
£662
Birmingham
£389
Destination

Washington
£373