Browse Origins:
Browse Destinations:

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: Tue Nov 17 2015 Return: Wed Nov 25 2015 Trip spans 9 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LGW
11:25p
28h 55m
1 stop
LGW
12:20p
IAD
6:25p
30h 05m
1 stop
Depart: Sun Oct 25 2015 Return: Wed Nov 18 2015 Trip spans 25 days
Icelandair
Icelandair
IAD
4:45p
LHR
3:30a
10h 45m
1 stop
LHR
8:00a
IAD
6:30p
10h 30m
1 stop
Depart: Fri Aug 21 2015 Return: Sun Aug 23 2015 Trip spans 3 days
United
United
IAD
1:05p
LHR
10:30p
9h 25m
1 stop
LHR
2:50a
IAD
1:55p
11h 05m
1 stop
Depart: Mon Nov 16 2015 Return: Tue Nov 24 2015 Trip spans 9 days
Turkish Airlines
Turkish Airlines
IAD
6:30p
LHR
12:15p
17h 45m
1 stop
LHR
5:30p
IAD
6:25p
24h 55m
1 stop
Depart: Fri Sep 25 2015 Return: Thu Oct 15 2015 Trip spans 21 days
Icelandair
Icelandair
IAD
4:35p
LGW
2:35a
10h 00m
1 stop
LGW
9:10a
IAD
8:10p
11h 00m
1 stop
Depart: Mon Sep 14 2015 Return: Thu Sep 17 2015 Trip spans 4 days
SWISS
SWISS
IAD
1:40p
LHR
11:15p
33h 35m
1 stop
LHR
2:00a
IAD
4:25p
14h 25m
1 stop
Depart: Mon Sep 7 2015 Return: Sun Sep 20 2015 Trip spans 14 days
Aeroflot
Aeroflot
IAD
11:00a
LHR
3:05a
16h 05m
1 stop
LHR
6:45p
IAD
1:55p
19h 10m
1 stop
Depart: Mon Jun 15 2015 Return: Sun Jun 28 2015 Trip spans 14 days
Virgin Atlantic
Virgin Atlantic
IAD
2:55p
LHR
10:20p
7h 25m
nonstop
LHR
7:00a
IAD
3:15p
8h 15m
nonstop
Depart: Wed May 27 2015 Return: Fri May 29 2015 Trip spans 3 days
Lufthansa
Lufthansa
IAD
6:30p
LHR
6:40a
12h 10m
1 stop
LHR
8:05a
IAD
4:10p
8h 05m
nonstop
Depart: Thu May 28 2015 Return: Fri May 29 2015 Trip spans 2 days
KLM Royal Dutch
KLM Royal Dutch
IAD
7:30a
LHR
11:45p
16h 15m
1 stop
LHR
7:45a
IAD
10:15p
14h 30m
2 stops
Depart: Sun Jun 28 2015 Return: Tue Jun 30 2015 Trip spans 3 days
US Airways
US Airways
IAD
9:40a
LHR
3:30a
17h 50m
2 stops
LHR
7:00a
IAD
10:23p
15h 23m
1 stop
Depart: Sat Jun 6 2015 Return: Tue Jun 30 2015 Trip spans 25 days
Major Airline
Major Airline
IAD
2:00p
LHR
10:00p
8h 00m
nonstop
LHR
7:00a
IAD
3:00p
8h 00m
nonstop
Depart: Mon Jun 29 2015 Return: Tue Jun 30 2015 Trip spans 2 days
$1007
Select
Finnair
Finnair
IAD
2:30p
LHR
9:50p
7h 20m
nonstop
LHR
6:45a
IAD
2:45p
8h 00m
nonstop
Depart: Mon Aug 10 2015 Return: Wed Sep 9 2015 Trip spans 31 days
$1017
Select
Aer Lingus
Aer Lingus
IAD
1:20p
LGW
11:25p
10h 05m
1 stop
LGW
5:10a
IAD
4:35p
11h 25m
1 stop
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 Jun 1 - Sep 11
4383 6:55 pm 7:20 am Jun 2 - Sep 10
Airports
Origin

Washington
$733
Destination

London
only $767
only $733