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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: Fri May 8 2015 Return: Sun May 10 2015 Trip spans 3 days
United
United
IAD
6:20p
LHR
4:30a
10h 10m
1 stop
LHR
3:20a
IAD
4:05p
12h 45m
1 stop
Depart: Thu Aug 13 2015 Return: Fri Sep 4 2015 Trip spans 23 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 Apr 5 2015 Return: Sat Apr 18 2015 Trip spans 14 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: Fri Jun 5 2015 Return: Sun Jun 7 2015 Trip spans 3 days
Lufthansa
Lufthansa
IAD
6:00p
LHR
1:20a
7h 20m
nonstop
LHR
2:50a
IAD
1:55p
11h 05m
1 stop
Depart: Fri May 29 2015 Return: Sat May 30 2015 Trip spans 2 days
SAS
SAS
IAD
1:15p
LHR
4:05a
14h 50m
1 stop
LHR
2:00p
IAD
4:00p
26h 00m
2 stops
Depart: Sat Apr 4 2015 Return: Mon Apr 6 2015 Trip spans 3 days
KLM Royal Dutch
KLM Royal Dutch
IAD
1:10p
LHR
2:05a
12h 55m
1 stop
LHR
4:40a
IAD
4:30p
11h 50m
1 stop
Depart: Tue Jun 2 2015 Return: Sun Jun 7 2015 Trip spans 6 days
Icelandair
Icelandair
IAD
10:10a
LHR
11:10a
25h 00m
1 stop
LHR
5:10p
IAD
8:10p
27h 00m
1 stop
Depart: Sat Jun 13 2015 Return: Sun Jun 14 2015 Trip spans 2 days
Delta
Delta
IAD
2:00a
LHR
11:10a
9h 10m
1 stop
LHR
4:40a
IAD
4:30p
11h 50m
1 stop
Depart: Tue Mar 31 2015 Return: Tue Apr 7 2015 Trip spans 8 days
US Airways
US Airways
IAD
3:59p
LHR
2:25a
10h 26m
1 stop
LHR
10:25a
IAD
10:09p
11h 44m
1 stop
Depart: Tue Apr 14 2015 Return: Tue Apr 21 2015 Trip spans 8 days
Air Canada
Air Canada
IAD
8:33a
LHR
1:25a
16h 52m
1 stop
LHR
9:00a
IAD
9:47p
12h 47m
1 stop
Depart: Sun Apr 12 2015 Return: Thu Apr 16 2015 Trip spans 5 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 Mar 29 2015 Return: Wed Apr 15 2015 Trip spans 18 days
American Airlines
American Airlines
IAD
9:40a
LHR
10:40p
13h 00m
1 stop
LHR
1:25p
IAD
9:25p
8h 00m
nonstop
Depart: Thu Jun 18 2015 Return: Thu Jul 23 2015 Trip spans 36 days
British Airways
British Airways
IAD
6:25p
LHR
1:40a
7h 15m
nonstop
LHR
6:45a
IAD
2:45p
8h 00m
nonstop
Depart: Wed Jun 17 2015 Return: Mon Jun 22 2015 Trip spans 6 days
$1025
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
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 Apr 22 - May 4
4383 6:55 pm 7:20 am Mar 29 - Apr 20
Airports
Origin

Washington
$778
Destination

London
$778