Find Cheap Flights from Washington to United Kingdom

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

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington to United Kingdom

(Round-trip)
Depart: Thu Jan 25 2018 Return: Mon Jan 29 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
LTN
22h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Wed Feb 28 2018 Return: Mon Mar 5 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
GLA
9h 10m
1 stop
GLA
IAD
10h 30m
1 stop
Depart: Wed Jan 24 2018 Return: Mon Jan 29 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Thu Jan 25 2018 Return: Mon Jan 29 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
LTN
22h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Fri Feb 9 2018 Return: Fri Feb 23 2018 Trip spans 15 days
Icelandair
Icelandair
IAD
LGW
10h 25m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Fri Jan 19 2018 Return: Mon Jan 22 2018 Trip spans 4 days
Multiple Airlines
Multiple Airlines
IAD
LTN
12h 30m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Wed Mar 7 2018 Return: Wed Mar 14 2018 Trip spans 7 days
Icelandair
Icelandair
IAD
GLA
9h 10m
1 stop
GLA
IAD
10h 30m
1 stop
Depart: Fri Jan 26 2018 Return: Wed Jan 31 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
LTN
12h 30m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Sun Jan 14 2018 Return: Fri Jan 26 2018 Trip spans 13 days
Icelandair
Icelandair
IAD
GLA
9h 10m
1 stop
GLA
IAD
10h 30m
1 stop
Depart: Mon Jan 15 2018 Return: Thu Jan 18 2018 Trip spans 4 days
Multiple Airlines
Multiple Airlines
IAD
STN
19h 25m
1 stop
STN
IAD
16h 10m
1 stop
Depart: Thu Jan 18 2018 Return: Sun Jan 21 2018 Trip spans 4 days
Icelandair
Icelandair
IAD
GLA
9h 10m
1 stop
GLA
IAD
10h 30m
1 stop
Depart: Fri Jan 19 2018 Return: Sun Jan 21 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
LTN
12h 30m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Thu Jan 25 2018 Return: Sun Jan 28 2018 Trip spans 4 days
Icelandair
Icelandair
IAD
GLA
9h 10m
1 stop
GLA
IAD
10h 30m
1 stop
Depart: Sat Feb 10 2018 Return: Sat Feb 17 2018 Trip spans 8 days
Icelandair
Icelandair
IAD
GLA
9h 10m
1 stop
GLA
IAD
10h 30m
1 stop
Depart: Thu Jan 25 2018 Return: Mon Jan 29 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
LTN
22h 00m
1 stop
LTN
IAD
15h 40m
1 stop
Depart: Fri Jan 19 2018 Return: Wed Jan 24 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
LGW
10h 25m
1 stop
LGW
IAD
11h 15m
1 stop
Depart: Mon Mar 19 2018 Return: Wed Apr 11 2018 Trip spans 24 days
Multiple Airlines
Multiple Airlines
IAD
LTN
14h 00m
1 stop
LTN
IAD
17h 55m
1 stop
Depart: Thu Feb 1 2018 Return: Mon Feb 5 2018 Trip spans 5 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
Depart: Fri Feb 9 2018 Return: Sat Feb 24 2018 Trip spans 16 days
Multiple Airlines
Multiple Airlines
IAD
LTN
12h 30m
1 stop
LTN
IAD
17h 15m
1 stop
Depart: Wed Feb 21 2018 Return: Sun Feb 25 2018 Trip spans 5 days
Icelandair
Icelandair
IAD
LGW
10h 10m
1 stop
LGW
IAD
11h 20m
1 stop
* 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.

Airports
Origin

Washington
$348
Destination

London
only $348
only $397
only $358
Glasgow
$395
Airlines