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

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

Book cheap flights from Washington Dulles Intl to London

(Round-trip)
Depart: Fri Nov 20 2015 Return: Sun Nov 22 2015 Trip spans 3 days
United
United
IAD
5:20p
LHR
3:30a
10h 10m
1 stop
LHR
2:40a
IAD
3:25p
12h 45m
1 stop
Depart: Tue Nov 10 2015 Return: Sun Nov 15 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LGW
11:25p
28h 55m
1 stop
LGW
7:40a
IAD
6:25p
34h 45m
1 stop
Depart: Thu Nov 19 2015 Return: Sat Nov 21 2015 Trip spans 3 days
Icelandair
Icelandair
IAD
2:45p
LGW
1:15a
10h 30m
1 stop
LGW
7:30a
IAD
6:30p
11h 00m
1 stop
Depart: Tue Jan 19 2016 Return: Mon Jan 25 2016 Trip spans 7 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LHR
11:00a
16h 30m
1 stop
LHR
5:30p
IAD
6:25p
24h 55m
1 stop
Depart: Tue Dec 1 2015 Return: Thu Dec 10 2015 Trip spans 10 days
Icelandair
Icelandair
IAD
2:45p
LHR
9:30a
18h 45m
1 stop
LHR
8:00a
IAD
6:30p
10h 30m
1 stop
Depart: Sat Jan 16 2016 Return: Sun Jan 24 2016 Trip spans 9 days
British Airways
British Airways
IAD
5:20p
LHR
12:20a
7h 00m
nonstop
LHR
12:00p
IAD
8:15p
8h 15m
nonstop
Depart: Sat Aug 22 2015 Return: Mon Aug 24 2015 Trip spans 3 days
SAS
SAS
IAD
1:15p
LHR
3:50a
14h 35m
2 stops
LHR
2:40a
IAD
4:00p
13h 20m
1 stop
Depart: Tue Aug 25 2015 Return: Wed Sep 2 2015 Trip spans 9 days
Delta
Delta
IAD
2:00a
LHR
11:10a
9h 10m
1 stop
LHR
6:30a
IAD
7:56p
13h 26m
1 stop
Depart: Mon Aug 31 2015 Return: Sun Sep 6 2015 Trip spans 7 days
Aer Lingus
Aer Lingus
IAD
6:25p
LGW
5:20a
10h 55m
1 stop
LGW
5:10a
IAD
4:35p
11h 25m
1 stop
Depart: Mon Aug 10 2015 Return: Fri Sep 18 2015 Trip spans 40 days
$1047
Select
Aer Lingus
Aer Lingus
IAD
1:20p
LHR
12:05a
10h 45m
1 stop
LHR
5:50a
IAD
4:35p
10h 45m
1 stop
Depart: Tue Jul 14 2015 Return: Tue Aug 4 2015 Trip spans 22 days
$1283
Select
Major Airline
Major Airline
IAD
1:00p
LHR
7:00a
18h 00m
1 stop
LHR
1:00p
IAD
4:00p
27h 00m
1 stop
Depart: Fri Jan 15 2016 Return: Sat Jan 16 2016 Trip spans 2 days
$2688
Select
Finnair
Finnair
IAD
1:30p
LHR
8:25p
6h 55m
nonstop
LHR
12:00p
IAD
8:15p
8h 15m
nonstop
Direct flights IAD to LON on Delta
Flight # Depart IAD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
4383 6:55 pm 7:20 am Jun 27 - Sep 10
4383 6:55 pm 7:20 am Jun 29 - Sep 11
Airports
Origin

Washington
$638
Destination

London
only $638
only $756