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Find Flight Deals from London to Washington Dulles Intl (LON - IAD)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from London to Washington Dulles Intl

(Round-trip)
Depart: Thu Apr 23 2015 Return: Sun Apr 26 2015 Trip spans 4 days
Icelandair
Icelandair
LGW
9:10a
IAD
8:10p
11h 00m
1 stop
IAD
4:35p
LGW
2:45a
10h 10m
1 stop
Depart: Sat Jan 10 2015 Return: Mon Jan 12 2015 Trip spans 3 days
United
United
LHR
11:05a
IAD
5:37p
30h 32m
1 stop
IAD
4:30a
LHR
12:00p
7h 30m
nonstop
Depart: Wed Feb 18 2015 Return: Thu Feb 26 2015 Trip spans 9 days
Icelandair
Icelandair
LHR
3:35p
IAD
6:30p
26h 55m
1 stop
IAD
2:45p
LHR
9:30a
18h 45m
1 stop
Depart: Sun Mar 22 2015 Return: Mon Apr 13 2015 Trip spans 23 days
Aeroflot
Aeroflot
LHR
9:30a
IAD
1:20p
27h 50m
1 stop
IAD
10:50a
LHR
12:25p
25h 35m
1 stop
Depart: Mon Mar 23 2015 Return: Sun Apr 12 2015 Trip spans 21 days
SAS
SAS
LHR
2:40a
IAD
4:15p
13h 35m
1 stop
IAD
1:15p
LHR
7:00a
17h 45m
1 stop
Depart: Sun Feb 22 2015 Return: Fri Feb 27 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
LHR
1:45a
IAD
8:15p
42h 30m
3 stops
IAD
1:30p
LHR
1:05p
23h 35m
3 stops
Depart: Thu Jan 1 2015 Return: Wed Jan 7 2015 Trip spans 7 days
Virgin Atlantic
Virgin Atlantic
LHR
6:25a
IAD
3:00p
8h 35m
nonstop
IAD
12:46p
LHR
1:05a
12h 19m
1 stop
Depart: Thu Dec 25 2014 Return: Thu Jan 8 2015 Trip spans 15 days
KLM Royal Dutch
KLM Royal Dutch
LHR
3:40a
IAD
3:35p
11h 55m
1 stop
IAD
10:50a
LHR
9:05p
10h 15m
1 stop
Depart: Sun Jan 25 2015 Return: Wed Feb 4 2015 Trip spans 11 days
Austrian Airlines
Austrian Airlines
LHR
2:35p
IAD
2:40p
24h 05m
1 stop
IAD
12:55p
LHR
11:25a
22h 30m
1 stop
Depart: Wed Apr 15 2015 Return: Wed Apr 22 2015 Trip spans 8 days
Turkish Airlines
Turkish Airlines
LGW
6:05a
IAD
7:10p
37h 05m
1 stop
IAD
7:25p
LGW
12:05a
28h 40m
1 stop
Depart: Tue Dec 23 2014 Return: Thu Jan 8 2015 Trip spans 17 days
Lufthansa
Lufthansa
LHR
11:20a
IAD
7:50p
8h 30m
nonstop
IAD
4:30a
LHR
12:00p
7h 30m
nonstop
Depart: Mon Dec 22 2014 Return: Wed Jan 14 2015 Trip spans 24 days
Air Canada
Air Canada
LHR
7:05a
IAD
8:55p
13h 50m
1 stop
IAD
12:00p
LHR
11:35p
11h 35m
1 stop
Depart: Sun Dec 21 2014 Return: Thu Jan 8 2015 Trip spans 19 days
SWISS
SWISS
LHR
3:00p
IAD
3:25p
24h 25m
1 stop
IAD
12:30p
LHR
6:35a
18h 05m
1 stop
Change your search
Direct flights LON to IAD on Delta
Flight # Depart LHR Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
4382 11:25 am 3:00 pm Jan 2 - Jan 6
4382 11:25 am 3:00 pm Jan 16 - Jan 16
4382 11:25 am 3:00 pm Dec 26 - Jan 1
4382 11:25 am 3:00 pm Jan 3 - Jan 10
4382 11:25 am 3:00 pm Jan 7 - Feb 5
4382 11:25 am 3:00 pm Jan 23 - Jan 31
Airports
Origin

London
only $681
only $670
Destination

Washington
$670