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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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 Mar 19 2016 Return: Sun Mar 20 2016 Trip spans 2 days
Virgin Atlantic
Virgin Atlantic
IAD
2:00a
LHR
12:10p
10h 10m
1 stop
LHR
7:00a
IAD
3:35p
8h 35m
nonstop
Depart: Fri Nov 6 2015 Return: Sun Nov 8 2015 Trip spans 3 days
United
United
IAD
12:10p
LHR
11:35p
11h 25m
1 stop
LHR
2:40a
IAD
3:25p
12h 45m
1 stop
Depart: Tue Nov 3 2015 Return: Wed Nov 11 2015 Trip spans 9 days
Icelandair
Icelandair
IAD
2:45p
LGW
1:15a
10h 30m
1 stop
LGW
7:30a
IAD
6:30p
11h 00m
1 stop
Depart: Sat Oct 31 2015 Return: Mon Nov 2 2015 Trip spans 3 days
Delta
Delta
IAD
4:10p
LHR
11:35p
7h 25m
nonstop
LHR
1:30a
IAD
3:45p
14h 15m
1 stop
Depart: Sun Nov 29 2015 Return: Sat Dec 5 2015 Trip spans 7 days
Icelandair
Icelandair
IAD
2:45p
LHR
1:30a
10h 45m
1 stop
LHR
3:35p
IAD
6:30p
26h 55m
1 stop
Depart: Thu Oct 29 2015 Return: Sun Nov 1 2015 Trip spans 4 days
Austrian Airlines
Austrian Airlines
IAD
3:00p
LHR
12:15a
33h 15m
1 stop
LHR
2:30a
IAD
11:15a
8h 45m
nonstop
Depart: Sun Nov 1 2015 Return: Mon Nov 30 2015 Trip spans 30 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LGW
11:10p
28h 40m
1 stop
LGW
5:10a
IAD
6:35p
37h 25m
1 stop
Depart: Sat Dec 26 2015 Return: Fri Jan 8 2016 Trip spans 14 days
Finnair
Finnair
IAD
1:15p
LHR
8:25p
7h 10m
nonstop
LHR
6:15a
IAD
2:40p
8h 25m
nonstop
Depart: Fri Dec 11 2015 Return: Sun Dec 13 2015 Trip spans 3 days
Delta
Delta
IAD
2:00a
LGW
9:05p
19h 05m
2 stops
LGW
6:40a
IAD
11:30p
16h 50m
2 stops
Depart: Mon Dec 14 2015 Return: Tue Dec 22 2015 Trip spans 9 days
British Airways
British Airways
IAD
5:30p
LHR
12:35a
7h 05m
nonstop
LHR
6:15a
IAD
2:40p
8h 25m
nonstop
Depart: Wed Feb 24 2016 Return: Wed Mar 30 2016 Trip spans 35 days
Air Canada
Air Canada
IAD
7:30a
LHR
11:35p
16h 05m
1 stop
LHR
3:30a
IAD
6:23p
14h 53m
2 stops
Depart: Tue Jan 5 2016 Return: Thu Jan 14 2016 Trip spans 10 days
Major Airline
Major Airline
IAD
2:10p
LHR
9:35p
7h 25m
nonstop
LHR
6:00a
IAD
2:35p
8h 35m
nonstop
Depart: Wed Dec 30 2015 Return: Wed Jan 6 2016 Trip spans 8 days
American Airlines
American Airlines
IAD
1:15p
LHR
8:25p
7h 10m
nonstop
LHR
6:15a
IAD
2:40p
8h 25m
nonstop
Depart: Sat Sep 26 2015 Return: Sun Sep 27 2015 Trip spans 2 days
KLM
KLM
IAD
1:45p
LHR
1:45a
12h 00m
1 stop
LHR
11:05a
IAD
12:41a
13h 36m
1 stop
Depart: Mon Sep 28 2015 Return: Thu Oct 8 2015 Trip spans 11 days
US Airways
US Airways
IAD
2:30p
LHR
9:50p
7h 20m
nonstop
LHR
1:25p
IAD
9:25p
8h 00m
nonstop
Depart: Fri Sep 4 2015 Return: Mon Sep 7 2015 Trip spans 4 days
Lufthansa
Lufthansa
IAD
6:30p
LHR
11:15p
28h 45m
1 stop
LHR
3:30a
IAD
12:10p
8h 40m
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 Sep 25 - Oct 23
4383 6:55 pm 7:20 am Sep 22 - Oct 22
4383 6:55 pm 7:20 am Sep 14 - Sep 21
4383 6:55 pm 7:20 am Sep 11 - Sep 15
4383 6:55 pm 7:20 am Sep 5 - Sep 10
Airports
Origin

Washington
$665
Destination

London
only $665
only $680