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Find Flight Deals 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: Wed Sep 9 2015 Return: Wed Sep 23 2015 Trip spans 15 days
Multiple Airlines
Multiple Airlines
IAD
10:10a
LGW
2:40p
28h 30m
1 stop
LGW
8:20a
IAD
8:10p
11h 50m
1 stop
Depart: Tue Sep 1 2015 Return: Sat Sep 19 2015 Trip spans 19 days
Icelandair
Icelandair
IAD
4:35p
LHR
11:10a
18h 35m
1 stop
LHR
5:10p
IAD
1:45p
20h 35m
1 stop
Depart: Mon Jun 8 2015 Return: Tue Jun 9 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
9:35a
LHR
10:20p
12h 45m
1 stop
LHR
5:45a
IAD
5:05p
11h 20m
1 stop
Depart: Sun Sep 13 2015 Return: Sun Oct 4 2015 Trip spans 22 days
Multiple Airlines
Multiple Airlines
IAD
4:35p
LTN
5:10a
12h 35m
1 stop
LTN
3:35a
IAD
8:10p
16h 35m
1 stop
Depart: Sun Apr 19 2015 Return: Fri May 8 2015 Trip spans 20 days
Icelandair
Icelandair
IAD
4:35p
LGW
2:45a
10h 10m
1 stop
LGW
9:10a
IAD
8:10p
11h 00m
1 stop
Depart: Sat May 30 2015 Return: Mon Jun 1 2015 Trip spans 3 days
United
United
IAD
6:20p
LHR
6:55a
12h 35m
1 stop
LHR
2:50a
IAD
1:55p
11h 05m
1 stop
Depart: Mon Aug 31 2015 Return: Sun Sep 6 2015 Trip spans 7 days
Aeroflot
Aeroflot
IAD
11:00a
LHR
3:05a
16h 05m
1 stop
LHR
9:25a
IAD
1:55p
28h 30m
1 stop
Depart: Mon Apr 6 2015 Return: Mon Apr 20 2015 Trip spans 15 days
Virgin Atlantic
Virgin Atlantic
IAD
2:55p
LHR
10:20p
7h 25m
nonstop
LHR
7:00a
IAD
3:15p
8h 15m
nonstop
Depart: Sun Sep 20 2015 Return: Tue Sep 29 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
LGW
12:05a
28h 40m
1 stop
LGW
8:35a
IAD
7:10p
34h 35m
1 stop
Depart: Wed Apr 15 2015 Return: Wed Apr 22 2015 Trip spans 8 days
KLM Royal Dutch
KLM Royal Dutch
IAD
7:27a
LHR
11:45p
16h 18m
1 stop
LHR
5:00p
IAD
4:30p
23h 30m
1 stop
Depart: Fri May 22 2015 Return: Sun May 24 2015 Trip spans 3 days
Lufthansa
Lufthansa
IAD
6:30p
LHR
6:40a
12h 10m
1 stop
LHR
3:30a
IAD
12:10p
8h 40m
nonstop
Depart: Sat Apr 18 2015 Return: Mon Apr 20 2015 Trip spans 3 days
SAS
SAS
IAD
1:15p
LHR
12:20a
35h 05m
2 stops
LHR
1:00p
IAD
4:00p
27h 00m
1 stop
Depart: Thu Apr 9 2015 Return: Fri Apr 10 2015 Trip spans 2 days
Air France
Air France
IAD
2:50p
LHR
1:30a
10h 40m
1 stop
LHR
10:25a
IAD
10:12p
11h 47m
1 stop
Depart: Sun Mar 22 2015 Return: Wed Apr 15 2015 Trip spans 25 days
Turkish Airlines
Turkish Airlines
IAD
8:30p
LHR
1:00p
16h 30m
1 stop
LHR
12:30p
IAD
7:10p
30h 40m
1 stop
Depart: Mon May 18 2015 Return: Wed Jun 10 2015 Trip spans 24 days
Aer Lingus
Aer Lingus
IAD
1:20p
LGW
11:40p
10h 20m
1 stop
LGW
5:25a
IAD
4:35p
11h 10m
1 stop
Depart: Mon Jun 22 2015 Return: Mon Jun 29 2015 Trip spans 8 days
$1030
Select
Aer Lingus
Aer Lingus
IAD
1:20p
LHR
2:10a
12h 50m
1 stop
LHR
3:30a
IAD
4:35p
13h 05m
1 stop
Depart: Fri Mar 27 2015 Return: Sun Apr 12 2015 Trip spans 17 days
$1045
Select
Air Canada
Air Canada
IAD
4:06a
LHR
10:25p
18h 19m
2 stops
LHR
11:00a
IAD
9:57p
10h 57m
1 stop
Depart: Sat Jun 20 2015 Return: Wed Jul 15 2015 Trip spans 26 days
$1100
Select
US Airways
US Airways
IAD
2:35p
LHR
9:45p
7h 10m
nonstop
LHR
6:45a
IAD
2:45p
8h 00m
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 Mar 29 - Apr 20
4383 7:00 pm 7:20 am Mar 28 - Mar 28
4383 8:15 pm 7:35 am Mar 24 - Mar 27
4383 8:15 pm 7:35 am Mar 8 - Mar 23
4383 10:35 pm 9:55 am Mar 12 - Mar 26
Airports
Origin

Washington
$744
Destination

London
only $756
only $775
only $744