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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
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: Fri Dec 8 2017 Return: Tue Dec 12 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
LTN
12h 30m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Thu Jan 11 2018 Return: Mon Jan 22 2018 Trip spans 12 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Wed Dec 6 2017 Return: Sun Dec 10 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Fri Feb 23 2018 Return: Wed Feb 28 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
LGW
10h 25m
1 stop
LGW
IAD
11h 15m
1 stop
Depart: Mon Oct 30 2017 Return: Tue Nov 21 2017 Trip spans 23 days
Multiple Airlines
Multiple Airlines
IAD
LGW
12h 25m
1 stop
LGW
IAD
17h 10m
1 stop
Depart: Thu Jan 11 2018 Return: Mon Jan 22 2018 Trip spans 12 days
Icelandair
Icelandair
IAD
LHR
18h 55m
1 stop
LHR
IAD
11h 05m
1 stop
Depart: Tue Dec 5 2017 Return: Tue Dec 12 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Fri Jan 12 2018 Return: Mon Jan 15 2018 Trip spans 4 days
Icelandair
Icelandair
IAD
LGW
10h 25m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Wed Dec 6 2017 Return: Tue Dec 12 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Fri Feb 23 2018 Return: Wed Feb 28 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
LHR
10h 35m
1 stop
LHR
IAD
11h 05m
1 stop
Depart: Fri Dec 8 2017 Return: Sun Dec 10 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
LTN
12h 30m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Wed Jan 10 2018 Return: Fri Jan 12 2018 Trip spans 3 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Mon Oct 30 2017 Return: Thu Nov 9 2017 Trip spans 11 days
Multiple Airlines
Multiple Airlines
IAD
STN
19h 25m
1 stop
STN
IAD
16h 10m
1 stop
Depart: Thu Jan 11 2018 Return: Mon Jan 15 2018 Trip spans 5 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Tue Nov 28 2017 Return: Sun Dec 3 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Wed Jan 17 2018 Return: Mon Jan 22 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Mon Oct 30 2017 Return: Thu Nov 9 2017 Trip spans 11 days
Multiple Airlines
Multiple Airlines
IAD
LTN
20h 10m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Thu Jan 18 2018 Return: Mon Jan 22 2018 Trip spans 5 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Thu Dec 7 2017 Return: Sun Dec 10 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Fri Jan 19 2018 Return: Sat Jan 27 2018 Trip spans 9 days
Icelandair
Icelandair
IAD
LGW
10h 25m
1 stop
LGW
IAD
11h 20m
1 stop
Direct flights IAD to LON on American Airlines
Flight # Depart IAD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6167 6:00 pm 6:20 am Sep 2 - Oct 27
6167 6:00 pm 5:20 am Oct 28 - Oct 28
6167 7:25 pm 6:30 am Oct 29 - Nov 4
6192 10:20 pm 10:30 am Sep 2 - Oct 27
6192 11:30 pm 10:40 am Oct 29 - Nov 3
6192 11:30 pm 10:40 am Oct 28 - Oct 28
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Washington
$497
Destination

London
only $497
only $524
only $505
only $507
Airlines