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Cheap flights from Washington to the United Kingdom from £155

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to the United Kingdom departing on 6/4. 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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Cheap return flights

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Icelandair Logo
14:35 - 09:55
SEA
-
GLA
11h 20m1 stop
Icelandair Logo
12:35 - 17:00
GLA
-
SEA
12h 25m1 stop
£364Icelandair
ש', 24 ינו' - ג', 17 פב​​​​​​​'
Icelandair Logo
14:35 - 09:55
SEA
-
GLA
11h 20m1 stop
Icelandair Logo
12:35 - 17:00
GLA
-
SEA
12h 25m1 stop
£373Icelandair
ג', 3 פב​​​​​​​' - ג', 17 פב​​​​​​​'
Multiple Airlines Logo
14:35 - 22:50
SEA
-
EDI
24h 15m2 stops
Multiple Airlines Logo
06:00 - 17:00
EDI
-
SEA
19h 00m2 stops
£411Multiple Airlines
ו', 23 ינו' - ו', 30 ינו'
Multiple Airlines Logo
14:35 - 19:30
SEA
-
LGW
20h 55m2 stops
Multiple Airlines Logo
19:30 - 17:00
LGW
-
SEA
29h 30m3 stops
£428Multiple Airlines
ד', 21 ינו' - ד', 28 ינו'
British Airways Logo
19:50 - 15:15
SEA
-
EDI
12h 25m1 stop
British Airways Logo
06:05 - 12:30
EDI
-
SEA
13h 25m1 stop
£435British Airways
ג', 10 מרץ - ג', 24 מרץ
British Airways Logo
13:35 - 10:05
SEA
-
EDI
12h 30m1 stop
British Airways Logo
06:05 - 11:30
EDI
-
SEA
13h 25m1 stop
£443British Airways
ו', 23 ינו' - ו', 30 ינו'
Lufthansa Logo
08:00 - 10:35
SEA
-
EDI
18h 35m1 stop
Lufthansa Logo
09:00 - 19:18
EDI
-
SEA
18h 18m2 stops
£446Lufthansa
ב', 30 מרץ - ו', 10 אפר'
Delta Logo
09:05 - 10:15
PDX
-
LHR
17h 10m2 stops
Delta Logo
06:30 - 11:10
LHR
-
PDX
12h 40m1 stop
£475Delta
ב', 4 מאי - ד', 20 מאי
Delta Logo
10:42 - 12:10
PDX
-
LHR
17h 28m1 stop
Delta Logo
06:30 - 17:39
LHR
-
PDX
19h 09m2 stops
£478Delta
ד', 1 אפר' - ד', 8 אפר'
Lufthansa Logo
15:15 - 13:20
PDX
-
LHR
14h 05m1 stop
Lufthansa Logo
07:25 - 22:29
LHR
-
PDX
23h 04m2 stops
£479Lufthansa
א', 29 מרץ - ג', 7 אפר'

United Airlines flights from State of Washington to United Kingdom

Our best United Airlines deals on State of Washington to United Kingdom flight tickets
United Airlines
31 Jan
SEA08:40Seattle/Tacoma Intl
16h 30m
2 stops
LHR09:10London Heathrow
25 Feb
LHR06:35London Heathrow
14h 45m
1 stop
SEA13:20Seattle/Tacoma Intl
£459
Find similar
United Airlines
26 Jan
SEA19:30Seattle/Tacoma Intl
28h 25m
3 stops
EDI07:55Edinburgh Turnhouse
2 Feb
EDI09:25Edinburgh Turnhouse
19h 32m
2 stops
SEA20:57Seattle/Tacoma Intl
£460
Find similar
United Airlines
5 May
SEA07:00Seattle/Tacoma Intl
16h 20m
2 stops
EDI07:20Edinburgh Turnhouse
13 May
EDI09:00Edinburgh Turnhouse
33h 20m
1 stop
SEA10:20Seattle/Tacoma Intl
£475
Find similar

Icelandair flights from State of Washington to United Kingdom

Our best Icelandair deals on State of Washington to United Kingdom flight tickets
Icelandair
24 Jan
SEA14:35Seattle/Tacoma Intl
11h 20m
1 stop
GLA09:55Glasgow Intl
17 Feb
GLA12:35Glasgow Intl
12h 25m
1 stop
SEA17:00Seattle/Tacoma Intl
£364
Find similar
Icelandair
3 Feb
SEA14:35Seattle/Tacoma Intl
11h 20m
1 stop
GLA09:55Glasgow Intl
17 Feb
GLA12:35Glasgow Intl
12h 25m
1 stop
SEA17:00Seattle/Tacoma Intl
£373
Find similar
Icelandair
14 Apr
SEA19:00Seattle/Tacoma Intl
10h 25m
1 stop
GLA13:25Glasgow Intl
21 Apr
GLA14:20Glasgow Intl
11h 35m
1 stop
SEA17:55Seattle/Tacoma Intl
£377
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to United Kingdom 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 28 דצמבר 2025.
Use the filters below to find and compare flights from Washington to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

ש' 24/1

14:35-09:55

1 stop11h 20m

Glasgow Intl

ג' 17/2

12:35-17:00

1 stop12h 25m

£364

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

ג' 3/2

14:35-09:55

1 stop11h 20m

Glasgow Intl

ג' 17/2

12:35-17:00

1 stop12h 25m

£373

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

ו' 23/1

14:35-22:50

2 stops24h 15m

Edinburgh Turnhouse

ו' 30/1

06:00-17:00

2 stops19h 00m

£411

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

ד' 21/1

14:35-19:30

2 stops20h 55m

London Gatwick

ד' 28/1

19:30-17:00

3 stops29h 30m

£428

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

ג' 10/3

19:50-15:15

1 stop12h 25m

Edinburgh Turnhouse

ג' 24/3

06:05-12:30

1 stop13h 25m

£435

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

ו' 23/1

13:35-10:05

1 stop12h 30m

Edinburgh Turnhouse

ו' 30/1

06:05-11:30

1 stop13h 25m

£443

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

ב' 30/3

08:00-10:35

1 stop18h 35m

Edinburgh Turnhouse

ו' 10/4

09:00-19:18

2 stops18h 18m

£446

PortlandLondon

PDX - LHR

PDXLHR

Portland

ב' 4/5

09:05-10:15

2 stops17h 10m

London Heathrow

ד' 20/5

06:30-11:10

1 stop12h 40m

£475

PortlandLondon

PDX - LHR

PDXLHR

Portland

ד' 1/4

10:42-12:10

1 stop17h 28m

London Heathrow

ד' 8/4

06:30-17:39

2 stops19h 09m

£478

PortlandLondon

PDX - LHR

PDXLHR

Portland

א' 29/3

15:15-13:20

1 stop14h 05m

London Heathrow

ג' 7/4

07:25-22:29

2 stops23h 04m

£479

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 the United Kingdom from

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

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 United Kingdom?

The cheapest month to fly to United Kingdom from State of Washington is in November. Flight prices, which tend to average around £476, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of November, then departing from State of Washington during the month October is also very affordable. Most momondo users find prices during this month for around £479.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from State of Washington to United Kingdom is on a Tuesday. Travellers who choose to depart for United Kingdom on a Tuesday will often find tickets for as low as £510. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to United Kingdom for around £650.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is at midday when flights can be purchased for as low as £538. Try not to purchase tickets in the morning because they tend to be around £1,013. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Washington to United Kingdom flight route?

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

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £588 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from State of Washington for as low as £511 on momondo.

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

There are 3 cabin classes available to choose from on Washington to United Kingdom 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 State of Washington to United Kingdom flights?

You could potentially save up to 25% on your flight if you consider stops on a State of Washington to United Kingdom flight.

Cheap State of Washington to United Kingdom flight deals and tips

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

Best price found

£292

Fastest flight time

9h 15m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from State of Washington in the past 72 hours is £292. The best return flight deal from State of Washington to United Kingdom found on momondo in the last 72 hours is £583.
The fastest flight from State of Washington to United Kingdom takes 9h 15m
Direct flights go from State of Washington to United Kingdom every day.
There are 1,286 airports in United Kingdom. From State of Washington there are direct flights to London Heathrow (LHR).
Search flight deals

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

    Prices for flights from Washington to United Kingdom are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The necessary travel and health documents for your United Kingdom 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 State of Washington to United Kingdom?

Best airlines flying from State of Washington to United Kingdom

Compare and see reviews for airlines that fly from State of Washington to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £351Free CancellationRating
6.7
7,616 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £366Free CancellationRating
7.5
677 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom £394Free CancellationRating
7.0
592 reviews
Search Icelandair flights
Aer LingusPriceFrom £498Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights

Why use momondo?

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

It is quick and easy to find Washington to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

All flight searches from Washington to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Washington.

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

Of course. momondo tracks the price of Washington to United Kingdom 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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ג' 27/1
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