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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: Sat Oct 31 2015 Return: Wed Nov 11 2015 Trip spans 12 days
Turkish Airlines
Turkish Airlines
IAD
8:30p
LGW
12:25a
28h 55m
1 stop
LGW
12:20p
IAD
6:25p
30h 05m
1 stop
Depart: Thu Sep 3 2015 Return: Wed Sep 9 2015 Trip spans 7 days
Aeroflot
Aeroflot
IAD
11:00a
LHR
3:05a
16h 05m
1 stop
LHR
6:45p
IAD
1:55p
19h 10m
1 stop
Depart: Fri May 8 2015 Return: Sun May 17 2015 Trip spans 10 days
Aer Lingus
Aer Lingus
IAD
1:20p
LGW
11:25p
10h 05m
1 stop
LGW
5:10a
IAD
4:35p
11h 25m
1 stop
Depart: Fri Sep 18 2015 Return: Sat Oct 3 2015 Trip spans 16 days
Icelandair
Icelandair
IAD
4:35p
LGW
2:35a
10h 00m
1 stop
LGW
8:35a
IAD
8:10p
11h 35m
1 stop
Depart: Thu Jun 4 2015 Return: Sat Jun 6 2015 Trip spans 3 days
SAS
SAS
IAD
1:15p
LHR
12:15p
23h 00m
1 stop
LHR
6:35a
IAD
4:00p
33h 25m
2 stops
Depart: Wed Sep 2 2015 Return: Thu Sep 24 2015 Trip spans 23 days
Icelandair
Icelandair
IAD
10:10a
LHR
11:10a
25h 00m
1 stop
LHR
9:00a
IAD
8:10p
11h 10m
1 stop
Depart: Mon Jun 8 2015 Return: Mon Jun 15 2015 Trip spans 8 days
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 Aug 11 2015 Return: Tue Aug 25 2015 Trip spans 15 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
LHR
1:05a
29h 40m
1 stop
LHR
6:30p
IAD
7:10p
24h 40m
1 stop
Depart: Wed May 27 2015 Return: Sun May 31 2015 Trip spans 5 days
Aer Lingus
Aer Lingus
IAD
1:20p
LCY
1:00a
11h 40m
1 stop
LCY
3:20p
IAD
4:35p
25h 15m
1 stop
Depart: Wed May 20 2015 Return: Fri May 22 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: Sat May 16 2015 Return: Sun May 17 2015 Trip spans 2 days
$1148
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British Airways
British Airways
IAD
2:30p
LHR
9:50p
7h 20m
nonstop
LHR
1:25p
IAD
9:25p
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 May 5 - May 31
4383 6:55 pm 7:20 am Jun 1 - Sep 11
4383 6:55 pm 7:20 am Jun 2 - Sep 10
4383 6:55 pm 7:20 am Apr 22 - May 4
Airports
Origin

Washington
$756
Destination

London
only $817
only $970
only $756