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

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

Book cheap flights from Washington Dulles Intl to London Heathrow

(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: Sat Dec 12 2015 Return: Mon Dec 14 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: Sat Nov 21 2015 Return: Mon Nov 23 2015 Trip spans 3 days
United
United
IAD
12:30p
LHR
12:20a
11h 50m
1 stop
LHR
3:50a
IAD
3:25p
11h 35m
1 stop
Depart: Fri Nov 27 2015 Return: Sun Nov 29 2015 Trip spans 3 days
United
United
IAD
12:30p
LHR
12:20a
11h 50m
1 stop
LHR
3:50a
IAD
3:25p
11h 35m
1 stop
Depart: Fri Nov 6 2015 Return: Sun Nov 8 2015 Trip spans 3 days
United
United
IAD
5:20p
LHR
3:30a
10h 10m
1 stop
LHR
3:30a
IAD
3:55p
12h 25m
1 stop
Depart: Fri Nov 13 2015 Return: Sun Nov 15 2015 Trip spans 3 days
United
United
IAD
5:20p
LHR
5:30a
12h 10m
1 stop
LHR
3:30a
IAD
3:55p
12h 25m
1 stop
Depart: Sat Nov 14 2015 Return: Mon Nov 16 2015 Trip spans 3 days
United
United
IAD
5:20p
LHR
5:30a
12h 10m
1 stop
LHR
3:30a
IAD
3:55p
12h 25m
1 stop
Depart: Sat Dec 19 2015 Return: Mon Dec 21 2015 Trip spans 3 days
United
United
IAD
5:20p
LHR
3:30a
10h 10m
1 stop
LHR
1:50a
IAD
2:55p
13h 05m
1 stop
Depart: Fri Dec 18 2015 Return: Sun Dec 20 2015 Trip spans 3 days
United
United
IAD
5:05p
LHR
12:15a
7h 10m
nonstop
LHR
3:50a
IAD
3:25p
11h 35m
1 stop
Depart: Sat Nov 28 2015 Return: Mon Nov 30 2015 Trip spans 3 days
United
United
IAD
12:55p
LHR
12:05a
11h 10m
1 stop
LHR
2:50a
IAD
3:25p
12h 35m
1 stop
Depart: Sat Sep 12 2015 Return: Sun Sep 13 2015 Trip spans 2 days
United
United
IAD
2:29a
LHR
12:20p
9h 51m
1 stop
LHR
2:50a
IAD
1:55p
11h 05m
1 stop
Depart: Sat Sep 5 2015 Return: Mon Sep 7 2015 Trip spans 3 days
United
United
IAD
6:25p
LHR
4:30a
10h 05m
1 stop
LHR
2:50a
IAD
1:55p
11h 05m
1 stop
Depart: Fri Sep 18 2015 Return: Sun Sep 20 2015 Trip spans 3 days
United
United
IAD
6:25p
LHR
4:30a
10h 05m
1 stop
LHR
2:50a
IAD
3:30p
12h 40m
1 stop
Depart: Thu Nov 5 2015 Return: Sat Nov 14 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LHR
12:15p
17h 45m
1 stop
LHR
11:00a
IAD
6:25p
31h 25m
1 stop
Depart: Fri Jan 15 2016 Return: Sun Jan 17 2016 Trip spans 3 days
Lufthansa
Lufthansa
IAD
4:55p
LHR
10:20a
17h 25m
1 stop
LHR
2:30a
IAD
11:20a
8h 50m
nonstop
Depart: Thu Nov 19 2015 Return: Mon Nov 23 2015 Trip spans 5 days
Icelandair
Icelandair
IAD
2:45p
LHR
1:30a
10h 45m
1 stop
LHR
3:35p
IAD
6:30p
26h 55m
1 stop
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: Tue Sep 8 2015 Trip spans 15 days
Delta
Delta
IAD
2:00a
LHR
11:10a
9h 10m
1 stop
LHR
5:15a
IAD
7:56p
14h 41m
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: Sat Jul 18 2015 Return: Sun Aug 30 2015 Trip spans 44 days
$1497
Select
Aeroflot
Aeroflot
IAD
11:00a
LHR
3:05a
16h 05m
1 stop
LHR
6:45p
IAD
1:55p
19h 10m
1 stop
Direct flights IAD to LHR 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
$638