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$196 Find cheap flights from Washington to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/22
Sat 6/29

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Good to know

Low season

January

High season

July

Cheapest flight

$196
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 36% increase in price.
Flight from Seattle to London Heathrow Airport

FAQs for booking flights from Washington to London

  • How does KAYAK find such low prices on flights from Washington to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Washington with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Washington to London?

Find which airlines fly direct from Washington to London, which days they fly and book direct flights.

Nonstop departures

Washington to London

Monday

ANA, AccesRail, Aegean Airlines, +121 more

ANA, AccesRail, +122 more

Tuesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Wednesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Thursday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Sunday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

See more direct flights

Nonstop returns

London to Washington

Monday

ANA, AccesRail, Aegean Airlines, +121 more

ANA, AccesRail, +122 more

Tuesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Wednesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Thursday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Sunday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

See more direct flights
See more direct flights

Book cheap flights from Washington to London

Recent round-trip flight deals

10/1Tue
1 stop
33h 55mSEA-LGW
10/8Tue
1 stop
16h 21mLGW-SEA
$538
9/7Sat
1 stop
33h 55mSEA-LGW
9/24Tue
1 stop
16h 21mLGW-SEA
$544
11/5Tue
1 stopLufthansa
32h 45mSEA-LHR
11/15Fri
1 stopLufthansa
32h 01mLHR-SEA
$567
10/15Tue
1 stopLufthansa
14h 10mSEA-LHR
10/29Tue
1 stopLufthansa
13h 55mLHR-SEA
$569
9/30Mon
1 stopIcelandair
11h 55mSEA-LGW
10/29Tue
1 stopIcelandair
13h 00mLGW-SEA
$577
10/21Mon
1 stopIcelandair
12h 05mSEA-LHR
10/29Tue
1 stopIcelandair
28h 35mLHR-SEA
$577
10/14Mon
1 stopVirgin Atlantic
14h 45mSEA-LGW
10/23Wed
1 stopVirgin Atlantic
18h 20mLGW-SEA
$595
10/15Tue
2 stopsAmerican Airlines
24h 11mSEA-LGW
10/29Tue
2 stopsAmerican Airlines
33h 21mLGW-SEA
$596
10/1Tue
2 stopsAmerican Airlines
19h 03mSEA-LGW
10/8Tue
2 stopsAmerican Airlines
28h 40mLGW-SEA
$598
10/7Mon
nonstopVirgin Atlantic
9h 20mSEA-LHR
10/13Sun
1 stopVirgin Atlantic
21h 40mLHR-SEA
$662

Search by stops

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Recent one-way flight deals

8/27Tue
3 stops
44h 35mSEA-LHR
$196
10/16Wed
1 stopIcelandair
11h 55mSEA-LGW
$243
10/12Sat
1 stopWestJet
21h 00mSEA-LHR
$372
10/20Sun
1 stopWestJet
14h 05mPDX-LHR
$380
10/13Sun
nonstopKLM
9h 40mSEA-LHR
$453
10/15Tue
1 stopDelta
14h 45mSEA-LGW
$457
9/10Tue
1 stopAlaska Airlines
19h 00mPDX-LHR
$463
8/13Tue
1 stopAlaska Airlines
14h 15mPDX-LHR
$485
10/12Sat
nonstopKLM
9h 40mSEA-LHR
$503
10/13Sun
1 stopDelta
12h 00mSEA-LCY
$503

Search by stops

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Search by price

Last minute flights from Washington to London

Last minute flight, train and bus deals

5/28Tue
multi-stop
13h 55mPDX-LHR
6/18Tue
multi-stop
19h 22mLHR-PDX
$868
5/27Mon
multi-stopDelta
22h 35mPDX-LHR
6/18Tue
multi-stopDelta
13h 30mLHR-PDX
$874
5/24Fri
multi-stopLufthansa
55h 05mPDX-LHR
6/5Wed
multi-stopLufthansa
19h 45mLHR-PDX
$877
5/28Tue
multi-stopAmerican Airlines
23h 56mPDX-LHR
6/18Tue
nonstopAmerican Airlines
9h 55mLHR-PDX
$879
5/27Mon
nonstopBritish Airways
9h 30mPDX-LHR
6/4Tue
nonstopBritish Airways
9h 55mLHR-PDX
$891
5/27Mon
multi-stopUnited Airlines
21h 40mPDX-LHR
6/18Tue
multi-stopUnited Airlines
16h 03mLHR-PDX
$896
5/24Fri
multi-stopUnited Airlines
14h 15mPDX-LHR
6/5Wed
multi-stopUnited Airlines
19h 03mLHR-PDX
$925
5/25Sat
multi-stopBritish Airways
14h 18mPDX-LHR
6/5Wed
nonstopBritish Airways
9h 55mLHR-PDX
$929
5/26Sun
multi-stopAmerican Airlines
15h 25mPDX-LHR
6/2Sun
multi-stopAmerican Airlines
19h 29mLHR-PDX
$938
5/28Tue
multi-stopLufthansa
19h 37mPDX-LGW
6/18Tue
multi-stopLufthansa
39h 20mLGW-PDX
$952

Search by stops

Search by airline

Search by price

Flights to London