Find cheap flights from Washington to the United Kingdom

Find cheap flights from Washington to the United Kingdom

Return
Economy
Washington (WAS)
United Kingdom
Sun 16/8
Sun 23/8
Any month
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Search hundreds of travel sites at once for deals on flights to the United Kingdom

Good to know

Low season

March Best time to beat the crowds (4% less expensive on average)

High season

June Most popular time to fly (23% more expensive on average)

Average price of a return ticket

£784 (avg. price over the last 2 weeks)

Good deal for a return ticket

£443 or less

FAQs for booking Washington to United Kingdom flights

Which airlines have a flexible cancellation policy for flights from Washington to the United Kingdom due to COVID-19?

How does KAYAK find such low prices on flights from Washington to the United Kingdom?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to the United Kingdom?

What is the Hacker Fare option on flights from Washington to the United Kingdom?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to the United Kingdom?

Top {4} airlines serving from Washington to the United Kingdom

Scores according to KAYAK customer reviews

7.3
Icelandair
Overall score based on 9,380 reviews
7.2
Boarding
7.3
Comfort
8.1
Crew
7.6
Entertainment
6.2
Food
Airline reviews
Read more about Icelandair

Book cheap flights from Washington to United Kingdom

Recent return flight deals

30/9
Wed
2 stops
Multiple Airlines
20h 24m
IAD - STN
13/10
Tue
2 stops
Multiple Airlines
16h 55m
STN - IAD
3/12
Thu
1 stop
TAP AIR PORTUGAL
16h 45m
IAD - LGW
7/12
Mon
1 stop
TAP AIR PORTUGAL
26h 35m
LGW - IAD
2/11
Mon
1 stop
Icelandair
10h 10m
IAD - LGW
26/11
Thu
1 stop
Icelandair
11h 35m
LGW - IAD
8/1
Fri
1 stop
Aer Lingus
9h 25m
IAD - MAN
16/1
Sat
1 stop
Aer Lingus
12h 20m
MAN - IAD
5/11
Thu
1 stop
Finnair
10h 56m
DCA - LHR
12/11
Thu
2 stops
Finnair
35h 37m
LHR - DCA
11/11
Wed
1 stop
SWISS
13h 55m
IAD - LCY
18/11
Wed
1 stop
SWISS
26h 00m
LCY - IAD
7/10
Wed
1 stop
British Airways
10h 00m
DCA - LHR
29/10
Thu
1 stop
British Airways
31h 51m
LHR - DCA
7/10
Wed
1 stop
Delta
9h 45m
DCA - LHR
21/10
Wed
1 stop
Delta
12h 15m
LHR - DCA
5/11
Thu
1 stop
Austrian Airlines
10h 20m
DCA - LHR
12/11
Thu
1 stop
Austrian Airlines
11h 20m
LHR - DCA
18/11
Wed
1 stop
Air India
12h 45m
DCA - LHR
25/11
Wed
1 stop
Air India
12h 25m
LHR - DCA
18/11
Wed
1 stop
KLM
10h 10m
IAD - LCY
25/11
Wed
1 stop
KLM
12h 10m
LCY - IAD
11/11
Wed
2 stops
Korean Air
15h 14m
IAD - LCY
18/11
Wed
1 stop
Korean Air
10h 50m
LCY - IAD
12/10
Mon
1 stop
Major Airline
9h 30m
BWI - MAN
29/10
Thu
1 stop
Major Airline
11h 10m
MAN - BWI
29/12
Tue
1 stop
Aeroflot
10h 50m
IAD - LCY
12/1
Tue
1 stop
Aeroflot
24h 05m
LCY - IAD
3/10
Sat
2 stops
Multiple Airlines
20h 30m
IAD - STN
13/10
Tue
2 stops
Multiple Airlines
16h 55m
STN - IAD
2/11
Mon
1 stop
TAP AIR PORTUGAL
10h 50m
IAD - LGW
26/11
Thu
1 stop
TAP AIR PORTUGAL
26h 35m
LGW - IAD
13/8
Thu
3 stops
Multiple Airlines
20h 25m
IAD - MAN
19/11
Thu
2 stops
Multiple Airlines
26h 35m
MAN - IAD
7/10
Wed
1 stop
Icelandair
18h 45m
IAD - LHR
21/10
Wed
1 stop
Icelandair
11h 05m
LHR - IAD
6/11
Fri
1 stop
TAP AIR PORTUGAL
12h 25m
IAD - LHR
9/11
Mon
1 stop
TAP AIR PORTUGAL
13h 10m
LHR - IAD
Show more results

Recent one-way flight deals

7/9
Mon
2 stops
Multiple Airlines
29h 40m
BWI - LHR
14/9
Mon
2 stops
TAP AIR PORTUGAL
17h 50m
BWI - LHR
6/9
Sun
1 stop
Icelandair
10h 10m
IAD - LHR
24/8
Mon
2 stops
Multiple Airlines
19h 30m
BWI - LHR
6/9
Sun
1 stop
Turkish Airlines
29h 30m
IAD - LGW
5/9
Sat
3 stops
Multiple Airlines
43h 30m
BWI - LHR
14/10
Wed
1 stop
TAP AIR PORTUGAL
15h 15m
IAD - LHR
14/10
Wed
1 stop
British Airways
10h 25m
IAD - LGW
24/8
Mon
2 stops
Multiple Airlines
19h 30m
BWI - LHR
6/9
Sun
1 stop
TAP AIR PORTUGAL
18h 55m
IAD - LHR
15/9
Tue
2 stops
Austrian Airlines
29h 00m
DCA - LHR
15/9
Tue
1 stop
SAS
16h 15m
DCA - LHR
13/9
Sun
1 stop
TAP AIR PORTUGAL
13h 45m
IAD - LHR
4/9
Fri
2 stops
Multiple Airlines
24h 30m
BWI - LHR
13/8
Thu
1 stop
TAP AIR PORTUGAL
21h 50m
IAD - LHR
7/9
Mon
3 stops
Multiple Airlines
24h 30m
BWI - LHR
24/8
Mon
1 stop
TAP AIR PORTUGAL
11h 40m
IAD - LHR
14/10
Wed
1 stop
Aer Lingus
11h 55m
IAD - LCY
24/8
Mon
3 stops
Multiple Airlines
27h 40m
BWI - LGW
13/8
Thu
1 stop
TAP AIR PORTUGAL
21h 50m
IAD - LHR
Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in GBP.

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 prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons 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 don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car hires 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.

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