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Cheap flights from the United Kingdom to Washington from £264

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Washington departing on 25/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from the United Kingdom to Washington

Recent return flight deals from the United Kingdom to Washington

Enter your travel dates to find the best prices.
Multiple Airlines Logo
22:35 - 19:25
MAN
-
SEA
28h 50m
2 stops
Multiple Airlines Logo
15:40 - 11:40
SEA
-
MAN
12h 00m
1 stop
£369Multiple Airlines
Mon, 13 Apr - Mon, 27 Apr
Multiple Airlines Logo
22:35 - 19:25
MAN
-
SEA
28h 50m
2 stops
Multiple Airlines Logo
15:40 - 11:40
SEA
-
MAN
12h 00m
1 stop
£369Multiple Airlines
Mon, 13 Apr - Sun, 26 Apr
Multiple Airlines Logo
22:45 - 09:35
STN
-
SEA
42h 50m
3 stops
Multiple Airlines Logo
15:40 - 19:15
SEA
-
STN
19h 35m
2 stops
£377Multiple Airlines
Mon, 13 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
£384Icelandair
Wed, 13 May - Sun, 24 May
United Airlines Logo
13:45 - 10:40
LHR
-
SEA
28h 55m
1 stop
United Airlines Logo
07:00 - 05:55
SEA
-
LHR
15h 55m
1 stop
£386United Airlines
Sat, 7 Mar - Mon, 9 Mar
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
£412Icelandair
Wed, 15 Apr - Wed, 22 Apr
United Airlines Logo
10:25 - 22:45
LHR
-
SEA
19h 20m
1 stop
United Airlines Logo
12:36 - 12:00
SEA
-
LHR
16h 24m
1 stop
£424United Airlines
Mon, 9 Mar - Tue, 17 Mar
Air Canada Logo
15:00 - 09:10
LHR
-
PDX
26h 10m
1 stop
Air Canada Logo
19:45 - 13:20
PDX
-
LHR
33h 35m
2 stops
£555Air Canada
Thu, 16 Apr - Sat, 2 May
Virgin Atlantic Logo
19:00 - 11:10
LCY
-
PDX
24h 10m
1 stop
Virgin Atlantic Logo
13:05 - 09:30
PDX
-
LCY
12h 25m
1 stop
£663Virgin Atlantic
Mon, 13 Apr - Mon, 27 Apr
Virgin Atlantic Logo
17:10 - 11:10
LCY
-
PDX
26h 00m
1 stop
Virgin Atlantic Logo
13:05 - 08:50
PDX
-
LCY
11h 45m
1 stop
£664Virgin Atlantic
Mon, 13 Apr - Mon, 27 Apr

Icelandair flights from United Kingdom to State of Washington

Our best Icelandair deals on United Kingdom to State of Washington flight tickets
Icelandair
15 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
22 Apr
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
£412
Icelandair
14 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
23 Apr
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
£420
Icelandair
13 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
27 Apr
SEA15:40Seattle/Tacoma Intl
15h 00m
1 stop
LGW14:40London Gatwick
£420

KLM flights from United Kingdom to State of Washington

Our best KLM deals on United Kingdom to State of Washington flight tickets
KLM
31 Mar
LCY09:20London City
15h 10m
1 stop
SEA16:30Seattle/Tacoma Intl
15 Apr
SEA13:45Seattle/Tacoma Intl
11h 45m
1 stop
LCY09:30London City
£660
KLM
3 Mar
LCY20:05London City
23h 20m
1 stop
PDX11:25Portland
22 Mar
PDX14:25Portland
19h 10m
1 stop
LCY16:35London City
£1,065

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 24 February 2026.
Use the filters below to find and compare flights from the United Kingdom to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Mon 13/4

22:35-19:25

2 stops28h 50m

Seattle/Tacoma Intl

Mon 27/4

15:40-11:40

1 stop12h 00m

£369

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Mon 13/4

22:35-19:25

2 stops28h 50m

Seattle/Tacoma Intl

Sun 26/4

15:40-11:40

1 stop12h 00m

£369

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 13/4

22:45-09:35

3 stops42h 50m

Seattle/Tacoma Intl

Mon 27/4

15:40-19:15

2 stops19h 35m

£377

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 13/5

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 24/5

19:00-14:40

1 stop11h 40m

£384

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 7/3

13:45-10:40

1 stop28h 55m

Seattle/Tacoma Intl

Mon 9/3

07:00-05:55

1 stop15h 55m

£386

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 15/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Wed 22/4

19:00-14:40

1 stop11h 40m

£412

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 9/3

10:25-22:45

1 stop19h 20m

Seattle/Tacoma Intl

Tue 17/3

12:36-12:00

1 stop16h 24m

£424

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Thu 16/4

15:00-09:10

1 stop26h 10m

Portland

Sat 2/5

19:45-13:20

2 stops33h 35m

£555

LondonPortland

LCY - PDX

LCYPDX

London City

Mon 13/4

19:00-11:10

1 stop24h 10m

Portland

Mon 27/4

13:05-09:30

1 stop12h 25m

£663

LondonPortland

LCY - PDX

LCYPDX

London City

Mon 13/4

17:10-11:10

1 stop26h 00m

Portland

Mon 27/4

13:05-08:50

1 stop11h 45m

£664

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from United Kingdom to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to State of Washington?

If you aren’t able to travel to State of Washington during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £494.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from United Kingdom to State of Washington is on a Wednesday. Travellers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as £585. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Sunday is £655.

What is the cheapest time of day to depart on your flight to State of Washington?

Flying to State of Washington from United Kingdom in the morning is the least expensive time of day to depart. momondo users have found prices as low as £610 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to State of Washington is in the afternoon when prices are around £617.

What is the cheapest United Kingdom to Washington flight route?

Fly from London Heathrow to Seattle/Tacoma Intl for the best United Kingdom - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around £565 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from United Kingdom for as low as £528 on momondo.

What cabin class options are available on United Kingdom to Washington flights?

There are 4 cabin classes available to choose from on United Kingdom to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to State of Washington flights?

You could potentially save up to 1% on your flight if you consider stops on a United Kingdom to State of Washington flight.

Cheap United Kingdom to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to State of Washington

Best price found

£471

Fastest flight time

9h 45m

Direct flights

Every day

Airports in State of Washington

96 airports
The best one-way flight to State of Washington from United Kingdom in the past 72 hours is £471. The best return flight deal from United Kingdom to State of Washington found on momondo in the last 72 hours is £493.
The fastest flight from United Kingdom to State of Washington takes 9h 45m
Direct flights go from United Kingdom to State of Washington every day.
There are 96 airports in State of Washington. From United Kingdom there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Washington?

    Prices for flights from United Kingdom to Washington were last updated today.

  • How many operators does momondo search for flights from United Kingdom to Washington?

  • How old do you have to be to fly from United Kingdom to Washington?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Washington.

  • What documentation or ID do you need to fly to Washington?

    The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United Kingdom to State of Washington?

Best airlines flying from United Kingdom to State of Washington

Compare and see reviews for airlines that fly from United Kingdom to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £333Free CancellationRating
6.8
7,808 reviews
Search Lufthansa flights
IcelandairPriceFrom £339Free CancellationRating
7.1
617 reviews
Search Icelandair flights
British AirwaysPriceFrom £360Free CancellationRating
6.7
7,762 reviews
Search British Airways flights
Aer LingusPriceFrom £415Free CancellationRating
7.2
1,463 reviews
Search Aer Lingus flights
United AirlinesPriceFrom £420Free CancellationRating
7.4
9,344 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £428Free CancellationRating
7.5
679 reviews
Search Virgin Atlantic flights
KLMPriceFrom £439Free CancellationRating
7.7
1,460 reviews
Search KLM flights
Air FrancePriceFrom £447Free CancellationRating
7.4
1,537 reviews
Search Air France flights
FinnairPriceFrom £455Free CancellationRating
7.6
1,367 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom £458Free CancellationRating
7.3
1,698 reviews
Search Scandinavian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Washington?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United Kingdom to Washington . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United Kingdom to Washington with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United Kingdom to Washington?

Once all potential United Kingdom to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from United Kingdom to Washington right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United Kingdom to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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