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Find Flight Deals 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: Mon Jun 8 2015 Return: Tue Jun 9 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
1:50p
LHR
1:15a
11h 25m
1 stop
LHR
8:35a
IAD
8:47a
24h 12m
1 stop
Depart: Sat Jun 6 2015 Return: Sun Jun 7 2015 Trip spans 2 days
Air Canada
Air Canada
IAD
4:45a
LHR
10:30p
17h 45m
1 stop
LHR
9:00a
IAD
8:47a
23h 47m
2 stops
Depart: Sat May 23 2015 Return: Mon May 25 2015 Trip spans 3 days
Virgin Atlantic
Virgin Atlantic
IAD
8:40a
LHR
2:05a
17h 25m
1 stop
LHR
7:00a
IAD
3:15p
8h 15m
nonstop
Depart: Tue Apr 28 2015 Return: Thu Apr 30 2015 Trip spans 3 days
United
United
IAD
1:06p
LHR
10:30p
9h 24m
1 stop
LHR
3:20a
IAD
4:05p
12h 45m
1 stop
Depart: Sat Apr 4 2015 Return: Sun Apr 5 2015 Trip spans 2 days
Lufthansa
Lufthansa
IAD
1:55p
LHR
9:20p
7h 25m
nonstop
LHR
6:55a
IAD
8:00p
13h 05m
1 stop
Depart: Mon Apr 20 2015 Return: Wed Apr 22 2015 Trip spans 3 days
KLM Royal Dutch
KLM Royal Dutch
IAD
5:54a
LHR
2:05a
20h 11m
1 stop
LHR
2:30a
IAD
4:30p
14h 00m
1 stop
Depart: Fri Apr 24 2015 Return: Sun Apr 26 2015 Trip spans 3 days
Delta
Delta
IAD
1:00p
LHR
12:25a
11h 25m
1 stop
LHR
4:40a
IAD
4:30p
11h 50m
1 stop
Depart: Wed Apr 1 2015 Return: Thu Apr 2 2015 Trip spans 2 days
Air France
Air France
IAD
2:50p
LHR
1:30a
10h 40m
1 stop
LHR
10:25a
IAD
11:00p
12h 35m
1 stop
Depart: Wed Apr 29 2015 Return: Tue May 5 2015 Trip spans 7 days
Icelandair
Icelandair
IAD
4:35p
LHR
11:10a
18h 35m
1 stop
LHR
9:00a
IAD
8:10p
11h 10m
1 stop
Depart: Thu Aug 6 2015 Return: Wed Sep 9 2015 Trip spans 35 days
Aeroflot
Aeroflot
IAD
11:00a
LHR
11:00p
36h 00m
1 stop
LHR
9:25a
IAD
1:55p
28h 30m
1 stop
Depart: Sun Mar 22 2015 Return: Sun Apr 19 2015 Trip spans 29 days
Turkish Airlines
Turkish Airlines
IAD
8:30p
LHR
1:00p
16h 30m
1 stop
LHR
6:30p
IAD
7:10p
24h 40m
1 stop
Depart: Sat Mar 28 2015 Return: Sun Apr 5 2015 Trip spans 9 days
$1000
Select
SAS
SAS
IAD
2:15p
LHR
4:05a
13h 50m
1 stop
LHR
4:30p
IAD
4:00p
23h 30m
1 stop
Depart: Wed Jun 17 2015 Return: Mon Jun 22 2015 Trip spans 6 days
$1032
Select
Aer Lingus
Aer Lingus
IAD
1:20p
LHR
11:05p
9h 45m
1 stop
LHR
3:30a
IAD
4:35p
13h 05m
1 stop
Depart: Tue Jul 7 2015 Return: Fri Jul 10 2015 Trip spans 4 days
$1087
Select
SWISS
SWISS
IAD
1:45p
LHR
10:55p
33h 10m
1 stop
LHR
3:00a
IAD
3:50p
12h 50m
1 stop
Change your search
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 Mar 29 - Apr 20
4383 7:00 pm 7:20 am Mar 28 - Mar 28
4383 7:15 pm 7:35 am Feb 27 - Mar 7
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
$710
Destination

London
$710