Find Cheap Flights from Washington to London Heathrow (WAS - LHR)

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 to London Heathrow

(Round-trip)
Depart: Tue Nov 7 2017 Return: Wed Nov 15 2017 Trip spans 9 days
Icelandair
Icelandair
IAD
LHR
10h 35m
1 stop
LHR
IAD
11h 05m
1 stop
Depart: Mon Dec 11 2017 Return: Tue Dec 19 2017 Trip spans 9 days
Aer Lingus
Aer Lingus
IAD
LHR
9h 35m
1 stop
LHR
IAD
13h 55m
1 stop
Depart: Mon Oct 23 2017 Return: Mon Nov 6 2017 Trip spans 15 days
Multiple Airlines
Multiple Airlines
DCA
LHR
13h 15m
2 stops
LHR
DCA
15h 24m
2 stops
Depart: Sun Oct 1 2017 Return: Mon Oct 9 2017 Trip spans 9 days
Turkish Airlines
Turkish Airlines
IAD
LHR
18h 30m
1 stop
LHR
IAD
17h 25m
1 stop
Depart: Sun Oct 8 2017 Return: Wed Oct 18 2017 Trip spans 11 days
British Airways
British Airways
IAD
LHR
7h 10m
nonstop
LHR
IAD
8h 05m
nonstop
Depart: Sun Nov 12 2017 Return: Tue Nov 28 2017 Trip spans 17 days
Air Canada
Air Canada
DCA
LHR
10h 20m
1 stop
LHR
DCA
12h 48m
1 stop
Depart: Wed Sep 20 2017 Return: Sun Oct 1 2017 Trip spans 12 days
United
United
IAD
LHR
7h 30m
nonstop
LHR
IAD
27h 35m
1 stop
Depart: Sat Dec 9 2017 Return: Tue Dec 19 2017 Trip spans 11 days
Virgin Atlantic
Virgin Atlantic
DCA
LHR
22h 10m
1 stop
LHR
DCA
15h 14m
1 stop
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Iberia
Iberia
IAD
LHR
7h 20m
nonstop
LHR
IAD
8h 05m
nonstop
Depart: Fri Dec 1 2017 Return: Thu Dec 7 2017 Trip spans 7 days
Icelandair
Icelandair
IAD
LHR
10h 35m
1 stop
LHR
IAD
26h 55m
1 stop
Depart: Thu Feb 1 2018 Return: Mon Feb 5 2018 Trip spans 5 days
Icelandair
Icelandair
IAD
LHR
10h 35m
1 stop
LHR
IAD
11h 05m
1 stop
Depart: Wed Feb 14 2018 Return: Mon Feb 19 2018 Trip spans 6 days
Icelandair
Icelandair
IAD
LHR
10h 35m
1 stop
LHR
IAD
11h 05m
1 stop
Depart: Thu Nov 30 2017 Return: Mon Dec 11 2017 Trip spans 12 days
Multiple Airlines
Multiple Airlines
DCA
LHR
24h 10m
2 stops
LHR
DCA
14h 56m
2 stops
Depart: Sat Nov 11 2017 Return: Wed Nov 22 2017 Trip spans 12 days
Icelandair
Icelandair
IAD
LHR
10h 35m
1 stop
LHR
IAD
26h 55m
1 stop
Depart: Tue Jan 30 2018 Return: Wed Feb 28 2018 Trip spans 30 days
British Airways
British Airways
IAD
LHR
7h 10m
nonstop
LHR
IAD
8h 25m
nonstop
Depart: Sun Oct 8 2017 Return: Sun Oct 22 2017 Trip spans 15 days
Turkish Airlines
Turkish Airlines
IAD
LHR
16h 45m
1 stop
LHR
IAD
25h 55m
1 stop
Depart: Wed Sep 20 2017 Return: Wed Sep 27 2017 Trip spans 8 days
Air Canada
Air Canada
DCA
LHR
10h 10m
1 stop
LHR
DCA
12h 37m
1 stop
Depart: Sun Dec 31 2017 Return: Wed Jan 10 2018 Trip spans 11 days
United
United
DCA
LHR
14h 55m
1 stop
LHR
DCA
13h 48m
1 stop
Depart: Thu Dec 7 2017 Return: Thu Dec 14 2017 Trip spans 8 days
Icelandair
Icelandair
IAD
LHR
18h 55m
1 stop
LHR
IAD
26h 55m
1 stop
Depart: Sun Sep 17 2017 Return: Mon Oct 9 2017 Trip spans 23 days
British Airways
British Airways
DCA
LHR
15h 55m
1 stop
LHR
DCA
23h 36m
2 stops
Direct flights WAS to LHR on American Airlines
Flight # Depart BWI Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6173 9:25 pm 9:35 am Aug 16 - Oct 27
6173 9:40 pm 9:50 am Aug 17 - Oct 26
Flight # Depart IAD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6167 6:00 pm 6:20 am Aug 16 - Oct 27
6192 10:20 pm 10:30 am Aug 16 - Oct 27
* 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
only $477
only $607
Destination

London
$477
Airlines Airline reviews

156 travelers who booked a flight from Washington to London rated their chosen airlines with an average of 7.6.

Overall
7.7
Boarding
8.1
Crew
8.3
Comfort
7.1
Food
6.9
Entertainment
7.8