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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, 20 Sep, 2014 Return: Sun, 21 Sep, 2014 Trip spans 2 days
United
United
LHR
12:20
IAD
20:45
8h 25m
1 stop
IAD
12:53
LHR
22:40
9h 47m
1 stop
Depart: Fri, 3 Oct, 2014 Return: Tue, 7 Oct, 2014 Trip spans 5 days
US Airways
US Airways
EDI
03:05
IAD
18:26
15h 21m
2 stops
IAD
09:40
EDI
04:00
18h 20m
2 stops
Depart: Thu, 4 Sep, 2014 Return: Tue, 9 Sep, 2014 Trip spans 6 days
Brussels Airlines
Brussels Airlines
MAN
02:35
IAD
15:20
12h 45m
1 stop
IAD
13:45
MAN
00:55
11h 10m
1 stop
Depart: Sat, 18 Oct, 2014 Return: Sun, 19 Oct, 2014 Trip spans 2 days
KLM Royal Dutch
KLM Royal Dutch
LHR
09:05
IAD
22:29
13h 24m
1 stop
IAD
11:50
LHR
23:45
11h 55m
1 stop
Depart: Sat, 13 Sep, 2014 Return: Sun, 14 Sep, 2014 Trip spans 2 days
United
United
LHR
12:20
IAD
20:45
8h 25m
1 stop
IAD
11:06
LHR
22:40
11h 34m
1 stop
Depart: Mon, 8 Sep, 2014 Return: Sun, 14 Sep, 2014 Trip spans 7 days
Brussels Airlines
Brussels Airlines
BHX
13:45
IAD
19:55
30h 10m
1 stop
IAD
18:25
BHX
04:40
10h 15m
1 stop
Depart: Tue, 16 Sep, 2014 Return: Thu, 2 Oct, 2014 Trip spans 17 days
Virgin Atlantic
Virgin Atlantic
LHR
07:35
IAD
15:50
8h 15m
1 stop
IAD
11:50
LHR
22:50
11h 00m
1 stop
Depart: Wed, 3 Sep, 2014 Return: Mon, 29 Sep, 2014 Trip spans 27 days
Brussels Airlines
Brussels Airlines
MAN
02:35
IAD
15:20
12h 45m
1 stop
IAD
13:45
MAN
00:55
11h 10m
1 stop
Depart: Tue, 9 Sep, 2014 Return: Mon, 15 Sep, 2014 Trip spans 7 days
KLM Royal Dutch
KLM Royal Dutch
GLA
02:00
IAD
16:25
14h 25m
1 stop
IAD
13:55
GLA
03:50
13h 55m
1 stop
Depart: Wed, 10 Sep, 2014 Return: Mon, 15 Sep, 2014 Trip spans 6 days
KLM Royal Dutch
KLM Royal Dutch
GLA
02:00
IAD
16:25
14h 25m
1 stop
IAD
13:55
GLA
12:45
22h 50m
1 stop
Depart: Wed, 24 Sep, 2014 Return: Sat, 11 Oct, 2014 Trip spans 18 days
United
United
GLA
05:00
IAD
17:59
12h 59m
1 stop
IAD
17:50
GLA
22:30
28h 40m
1 stop
Depart: Wed, 17 Sep, 2014 Return: Wed, 24 Sep, 2014 Trip spans 8 days
United
United
LHR
06:05
IAD
17:06
11h 01m
1 stop
IAD
02:00
LHR
12:20
10h 20m
1 stop
Depart: Sat, 6 Sep, 2014 Return: Mon, 29 Sep, 2014 Trip spans 24 days
Brussels Airlines
Brussels Airlines
MAN
06:25
IAD
19:55
13h 30m
1 stop
IAD
13:45
MAN
00:55
11h 10m
1 stop
Depart: Sun, 14 Sep, 2014 Return: Thu, 2 Oct, 2014 Trip spans 19 days
Virgin Atlantic
Virgin Atlantic
LHR
08:50
IAD
23:21
14h 31m
1 stop
IAD
11:50
LHR
21:50
10h 00m
1 stop
Depart: Thu, 18 Sep, 2014 Return: Thu, 25 Sep, 2014 Trip spans 8 days
Delta
Delta
LHR
06:30
IAD
22:06
15h 36m
direct
IAD
14:40
LHR
22:05
7h 25m
direct
Depart: Sun, 7 Sep, 2014 Return: Sat, 13 Sep, 2014 Trip spans 7 days
Aeroflot
Aeroflot
LHR
09:25
IAD
13:55
28h 30m
1 stop
IAD
10:45
LHR
03:05
16h 20m
1 stop
Depart: Thu, 25 Sep, 2014 Return: Sun, 12 Oct, 2014 Trip spans 18 days
US Airways
US Airways
LHR
06:05
IAD
18:26
12h 21m
1 stop
IAD
15:55
LHR
02:25
10h 30m
1 stop
Depart: Fri, 5 Sep, 2014 Return: Mon, 15 Sep, 2014 Trip spans 11 days
KLM Royal Dutch
KLM Royal Dutch
GLA
07:05
IAD
22:38
15h 33m
1 stop
IAD
13:55
GLA
07:05
17h 10m
1 stop
Depart: Fri, 12 Sep, 2014 Return: Thu, 25 Sep, 2014 Trip spans 14 days
Aeroflot
Aeroflot
LHR
18:45
IAD
13:55
19h 10m
1 stop
IAD
10:45
LHR
03:05
16h 20m
1 stop
Depart: Fri, 26 Sep, 2014 Return: Mon, 29 Sep, 2014 Trip spans 4 days
Delta
Delta
LHR
07:35
IAD
15:50
8h 15m
1 stop
IAD
13:19
LHR
23:45
10h 26m
1 stop
Change your search
Airports
Origin

Bristol
£551
Birmingham
£498
Glasgow
£542
Newcastle upon Tyne
£510
Edinburgh
£433
London
only £604
only £538
Manchester
£509
Destination

Washington
£509