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Cheap flights from Seattle to the United Kingdom from £187

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to the United Kingdom departing on 21/5. 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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Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Seattle to the United Kingdom.
Air Canada Logo
14:55 - 13:20SEA-LHR
14h 25m1 stop
Air Canada Logo
09:30 - 19:37LHR-SEA
18h 07m1 stop
£421Air Canada
Find Deal
Wed, 7 May - Tue, 13 May
Icelandair Logo
19:00 - 20:20SEA-LHR
17h 20m1 stop
Icelandair Logo
21:25 - 17:50LHR-SEA
28h 25m1 stop
£423Icelandair
Find Deal
Tue, 13 May - Tue, 20 May
British Airways Logo
06:58 - 06:25SEA-LHR
15h 27m1 stop
British Airways Logo
09:50 - 11:35LHR-SEA
9h 45mdirect
£502British Airways
Find Deal
Wed, 23 Apr - Wed, 30 Apr
British Airways Logo
13:30 - 06:50SEA-LHR
9h 20mdirect
British Airways Logo
16:30 - 18:20LHR-SEA
9h 50mdirect
£502British Airways
Find Deal
Mon, 28 Apr - Wed, 14 May
Delta Logo
17:35 - 11:20SEA-LHR
9h 45mdirect
Delta Logo
06:30 - 11:50LHR-SEA
13h 20m1 stop
£508Delta
Find Deal
Sun, 21 Sep - Tue, 7 Oct
Delta Logo
20:20 - 14:15SEA-LHR
9h 55mdirect
Delta Logo
06:30 - 11:40LHR-SEA
13h 10m1 stop
£509Delta
Find Deal
Tue, 29 Apr - Wed, 14 May
KLM Logo
18:10 - 16:40SEA-LCY
14h 30m1 stop
KLM Logo
10:00 - 15:57LCY-SEA
13h 57m1 stop
£544KLM
Find Deal
Mon, 28 Apr - Wed, 14 May
Virgin Atlantic Logo
17:35 - 11:20SEA-LHR
9h 45mdirect
Virgin Atlantic Logo
19:45 - 17:25LHR-SEA
29h 40m1 stop
£546Virgin Atlantic
Find Deal
Thu, 1 May - Mon, 12 May
KLM Logo
20:20 - 14:15SEA-LHR
9h 55mdirect
KLM Logo
09:55 - 15:57LHR-SEA
14h 02m1 stop
£547KLM
Find Deal
Thu, 1 May - Wed, 14 May
Virgin Atlantic Logo
13:55 - 17:20SEA-LCY
19h 25m1 stop
Virgin Atlantic Logo
09:20 - 20:49LCY-SEA
19h 29m2 stops
£552Virgin Atlantic
Find Deal
Tue, 13 May - Tue, 20 May

Air Canada flights from Seattle to United Kingdom

Our best Air Canada deals on Seattle to United Kingdom flight tickets
Air Canada
7 May
SEA14:55Seattle/Tacoma Intl
14h 25m
1 stop
LHR13:20London Heathrow
13 May
LHR09:30London Heathrow
18h 07m
1 stop
SEA19:37Seattle/Tacoma Intl
Air Canada
29 Apr
SEA05:45Seattle/Tacoma Intl
16h 45m
2 stops
LHR06:30London Heathrow
20 May
LHR08:45London Heathrow
18h 52m
2 stops
SEA19:37Seattle/Tacoma Intl
Air Canada
4 May
SEA07:20Seattle/Tacoma Intl
15h 10m
1 stop
LHR06:30London Heathrow
16 May
LHR09:30London Heathrow
18h 07m
1 stop
SEA19:37Seattle/Tacoma Intl

Icelandair flights from Seattle to United Kingdom

Our best Icelandair deals on Seattle to United Kingdom flight tickets
Icelandair
13 May
SEA19:00Seattle/Tacoma Intl
17h 20m
1 stop
LHR20:20London Heathrow
20 May
LHR21:25London Heathrow
28h 25m
1 stop
SEA17:50Seattle/Tacoma Intl
Icelandair
28 Apr
SEA15:45Seattle/Tacoma Intl
20h 35m
1 stop
LHR20:20London Heathrow
2 May
LHR21:25London Heathrow
31h 15m
1 stop
SEA20:40Seattle/Tacoma Intl
Icelandair
29 Apr
SEA15:45Seattle/Tacoma Intl
20h 35m
1 stop
LHR20:20London Heathrow
20 May
LHR21:25London Heathrow
28h 25m
1 stop
SEA17:50Seattle/Tacoma Intl

See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Seattle 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 Seattle is in January. Flight prices, which tend to average around £517, 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 January, then departing from Seattle during the month October is also very affordable. Most momondo users find prices during this month for around £517.

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

The cheapest day to depart from Seattle to United Kingdom is on a Monday. Travellers who choose to depart for United Kingdom on a Monday will often find tickets for as low as £629. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to United Kingdom for around £878.

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 in the afternoon when flights can be purchased for as low as £680. Try not to purchase tickets in the morning because they tend to be around £1,058. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Seattle/Tacoma Intl to United Kingdom flight route?

Fly from Seattle/Tacoma Intl to London Heathrow for the best Seattle/Tacoma Intl - 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 Seattle when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £641 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Seattle for as low as £572 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to United Kingdom flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Seattle to United Kingdom flight deals and tips

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

Best price found

£187

Fastest flight time

9h 20m

Direct flights

Every day

Airports in United Kingdom

6 airports
The best one-way flight to United Kingdom from Seattle in the past 72 hours is £187. The best return flight deal from Seattle to United Kingdom found on momondo in the last 72 hours is £421.
The fastest flight from Seattle to United Kingdom takes 9h 20m
Direct flights go from Seattle to United Kingdom every day.
There are 6 airports near United Kingdom: London Heathrow (LHR), Edinburgh Turnhouse (EDI), Manchester (MAN), London Stansted (STN), London Gatwick (LGW), Glasgow Intl (GLA)

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to United Kingdom?

    Prices for flights from Seattle/Tacoma Intl Airport to United Kingdom were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to United Kingdom?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to United Kingdom?

    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 Seattle/Tacoma Intl Airport to United Kingdom.

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

    The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Seattle to United Kingdom?


Best airlines flying from Seattle to United Kingdom

Compare and see reviews for airlines that fly from Seattle to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £374Free CancellationRating
7.0
476 reviews
Search Icelandair flights
British AirwaysPriceFrom £407Free CancellationRating
6.6
6,713 reviews
Search British Airways flights
LufthansaPriceFrom £455Free CancellationRating
6.7
6,961 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom £464Free CancellationRating
7.4
636 reviews
Search Virgin Atlantic flights
KLMPriceFrom £512Free CancellationRating
7.8
1,321 reviews
Search KLM flights

Why use momondo?

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

Finding the right flight to United Kingdom from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Seattle to United Kingdom flights to just show those with flexible booking policies.

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

Once you have performed a search for Seattle to United Kingdom flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo