How do I get Price Alerts for flights from Seattle to London Luton Airport?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Seattle from London Luton Airport . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Seattle to London Luton Airport with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London Luton Airport?

Prices for flights from Seattle/Tacoma Intl Airport to London Luton Airport are updated daily.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to London Luton Airport?

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 Seattle/Tacoma Intl Airport to London Luton Airport.

What documentation or ID do you need to fly to London Luton Airport?

The required travel and health documents for your London Luton Airport 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 London Luton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£227 Cheap Flights from Seattle to London Luton Airport in 2026

Find the cheapest flights from Seattle to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

05:50 - 11:00SEA Seattle/Tacoma Intl-LTN London Luton

21h 10m3 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat

05:40 - 16:59LTN London Luton-SEA Seattle/Tacoma Intl

19h 19m2 stops Barcelona-El Prat Munich Franz Josef Strauss

£554Multiple Airlines

Mon, 5 Oct - Tue, 13 Oct

15:40 - 17:25SEA Seattle/Tacoma Intl-LTN London Luton

17h 45m2 stops Reykjavik Keflavik Intl Dublin

06:20 - 20:40LTN London Luton-SEA Seattle/Tacoma Intl

22h 20m2 stops Dublin Reykjavik Keflavik Intl

£556Multiple Airlines

Fri, 2 Oct - Fri, 9 Oct

08:00 - 18:05SEA Seattle/Tacoma Intl-LTN London Luton

26h 05m2 stops Toronto Pearson Intl Barcelona-El Prat

05:40 - 16:59LTN London Luton-SEA Seattle/Tacoma Intl

19h 19m2 stops Barcelona-El Prat Munich Franz Josef Strauss

£565Multiple Airlines

Tue, 29 Sep - Tue, 6 Oct

17:40 - 19:55SEA Seattle/Tacoma Intl-LTN London Luton

18h 15m2 stops Frankfurt am Main Milan Malpensa

20:35 - 14:55LTN London Luton-SEA Seattle/Tacoma Intl

26h 20m2 stops Milan Malpensa Frankfurt am Main

£568Multiple Airlines

Sun, 11 Oct - Sat, 24 Oct

19:00 - 22:50SEA Seattle/Tacoma Intl-LTN London Luton

19h 50m2 stops Reykjavik Keflavik Intl Glasgow Intl

08:50 - 17:55LTN London Luton-SEA Seattle/Tacoma Intl

17h 05m2 stops Glasgow Intl Reykjavik Keflavik Intl

£574Multiple Airlines

Tue, 13 Oct - Tue, 20 Oct

14:35 - 13:55SEA Seattle/Tacoma Intl-LTN London Luton

15h 20m1 stop Reykjavik Keflavik Intl

07:00 - 17:00LTN London Luton-SEA Seattle/Tacoma Intl

18h 00m1 stop Reykjavik Keflavik Intl

£574Multiple Airlines

Fri, 4 Dec - Tue, 15 Dec

19:00 - 22:05SEA Seattle/Tacoma Intl-LTN London Luton

19h 05m2 stops Reykjavik Keflavik Intl Glasgow Intl

07:00 - 21:57LTN London Luton-SEA Seattle/Tacoma Intl

22h 57m3 stops Paris Charles de Gaulle Calgary Vancouver Intl

£577Multiple Airlines

Mon, 19 Oct - Tue, 3 Nov

19:00 - 22:20SEA Seattle/Tacoma Intl-LTN London Luton

19h 20m2 stops Reykjavik Keflavik Intl Glasgow Intl

07:00 - 21:57LTN London Luton-SEA Seattle/Tacoma Intl

22h 57m3 stops Paris Charles de Gaulle Calgary Vancouver Intl

£578Multiple Airlines

Sun, 18 Oct - Tue, 3 Nov

14:35 - 13:55SEA Seattle/Tacoma Intl-LTN London Luton

15h 20m1 stop Reykjavik Keflavik Intl

06:00 - 17:00LTN London Luton-SEA Seattle/Tacoma Intl

19h 00m1 stop Reykjavik Keflavik Intl

£578Multiple Airlines

Fri, 4 Dec - Sun, 13 Dec

14:35 - 21:05SEA Seattle/Tacoma Intl-LTN London Luton

22h 30m2 stops Reykjavik Keflavik Intl Dublin

07:45 - 17:00LTN London Luton-SEA Seattle/Tacoma Intl

17h 15m2 stops Dublin Reykjavik Keflavik Intl

£579Multiple Airlines

Wed, 4 Nov - Wed, 11 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

17:40 - 19:25SEA Seattle/Tacoma Intl-LTN London Luton

17h 45m2 stops Frankfurt am Main Paris Charles de Gaulle

19:20 - 16:00LTN London Luton-SEA Seattle/Tacoma Intl

28h 40m2 stops Paris Charles de Gaulle Frankfurt am Main

£706Multiple Airlines

Wed, 2 Sep - Wed, 9 Sep

19:10 - 00:30SEA Seattle/Tacoma Intl-LTN London Luton

21h 20m1 stop Dublin

09:25 - 17:10LTN London Luton-SEA Seattle/Tacoma Intl

15h 45m1 stop Dublin

£747Multiple Airlines

Fri, 4 Sep - Thu, 10 Sep

19:10 - 09:00SEA Seattle/Tacoma Intl-LTN London Luton

29h 50m1 stop Dublin

09:00 - 18:45LTN London Luton-SEA Seattle/Tacoma Intl

17h 45m2 stops Dublin Calgary

£750Multiple Airlines

Tue, 1 Sep - Sun, 6 Sep

19:10 - 15:25SEA Seattle/Tacoma Intl-LTN London Luton

12h 15m1 stop Dublin

09:40 - 17:10LTN London Luton-SEA Seattle/Tacoma Intl

15h 30m1 stop Dublin

£761Multiple Airlines

Wed, 2 Sep - Tue, 8 Sep

18:50 - 00:30SEA Seattle/Tacoma Intl-LTN London Luton

21h 40m2 stops Munich Franz Josef Strauss Dublin

14:25 - 16:59LTN London Luton-SEA Seattle/Tacoma Intl

34h 34m2 stops Dublin Munich Franz Josef Strauss

£769Multiple Airlines

Fri, 4 Sep - Mon, 7 Sep

10:40 - 14:00SEA Seattle/Tacoma Intl-LTN London Luton

19h 20m2 stops Vancouver Intl Dublin

14:25 - 16:59LTN London Luton-SEA Seattle/Tacoma Intl

34h 34m2 stops Dublin Munich Franz Josef Strauss

£780Multiple Airlines

Fri, 4 Sep - Mon, 7 Sep

10:40 - 14:00SEA Seattle/Tacoma Intl-LTN London Luton

19h 20m2 stops Vancouver Intl Dublin

08:15 - 11:55LTN London Luton-SEA Seattle/Tacoma Intl

35h 40m3 stops Dublin Munich Franz Josef Strauss Frankfurt am Main

£781Multiple Airlines

Fri, 4 Sep - Mon, 7 Sep

05:50 - 14:00SEA Seattle/Tacoma Intl-LTN London Luton

24h 10m2 stops Vancouver Intl Dublin

14:25 - 16:59LTN London Luton-SEA Seattle/Tacoma Intl

34h 34m2 stops Dublin Munich Franz Josef Strauss

£782Multiple Airlines

Fri, 4 Sep - Mon, 7 Sep

19:10 - 15:25SEA Seattle/Tacoma Intl-LTN London Luton

12h 15m1 stop Dublin

09:40 - 18:45LTN London Luton-SEA Seattle/Tacoma Intl

17h 05m2 stops Dublin Calgary

£789Multiple Airlines

Wed, 2 Sep - Tue, 22 Sep

05:50 - 14:00SEA Seattle/Tacoma Intl-LTN London Luton

24h 10m2 stops Vancouver Intl Dublin

14:25 - 16:59LTN London Luton-SEA Seattle/Tacoma Intl

34h 34m2 stops Dublin Munich Franz Josef Strauss

£792Multiple Airlines

Fri, 4 Sep - Mon, 7 Sep

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Use the filters below to find and compare flights from Seattle to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Mon 5/10

05:50-11:00

3 stops21h 10m

London Luton

Tue 13/10

05:40-16:59

2 stops19h 19m

£554

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Fri 2/10

15:40-17:25

2 stops17h 45m

London Luton

Fri 9/10

06:20-20:40

2 stops22h 20m

£556

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Tue 29/9

08:00-18:05

2 stops26h 05m

London Luton

Tue 6/10

05:40-16:59

2 stops19h 19m

£565

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Sun 11/10

17:40-19:55

2 stops18h 15m

London Luton

Sat 24/10

20:35-14:55

2 stops26h 20m

£568

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Tue 13/10

19:00-22:50

2 stops19h 50m

London Luton

Tue 20/10

08:50-17:55

2 stops17h 05m

£574

Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Fri 4/12

14:35-13:55

1 stop15h 20m

London Luton

Tue 15/12

07:00-17:00

1 stop18h 00m

£574

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Mon 19/10

19:00-22:05

2 stops19h 05m

London Luton

Tue 3/11

07:00-21:57

3 stops22h 57m

£577

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Sun 18/10

19:00-22:20

2 stops19h 20m

London Luton

Tue 3/11

07:00-21:57

3 stops22h 57m

£578

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Fri 4/12

14:35-13:55

1 stop15h 20m

London Luton

Sun 13/12

06:00-17:00

1 stop19h 00m

£578

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Wed 4/11

14:35-21:05

2 stops22h 30m

London Luton

Wed 11/11

07:45-17:00

2 stops17h 15m

£579

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

When to book flights from Seattle to London Luton Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to London Luton Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Seattle to London Luton Airport (SEA to LTN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to London Luton Airport

Best price found	£227
Fastest flight time	14h 25m
Direct flights	None

The best one-way flight to London Luton Airport from Seattle in the past 72 hours is £227. The best return flight deal from Seattle to London Luton Airport found on momondo in the last 72 hours is £554.

The fastest flight from Seattle to London Luton Airport takes 14h 25m

There are no direct flights from Seattle to London Luton Airport. There are no popular flight routes from Seattle to London Luton Airport.

Search flight deals

Frequently asked questions about flying from Seattle to London Luton Airport

How far is Seattle/Tacoma Intl to London Luton by plane?
The distance between Seattle/Tacoma Intl and London Luton is about 4754.4 mi. In terms of flight time, this usually takes a little over 14h 25m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London Luton Airport?
Prices for flights from Seattle/Tacoma Intl Airport to London Luton Airport are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London Luton Airport?
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 Seattle/Tacoma Intl Airport to London Luton Airport.
What documentation or ID do you need to fly to London Luton Airport?
The required travel and health documents for your London Luton Airport 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 London Luton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Seattle to London Luton Airport

How do I get Price Alerts for flights from Seattle to London Luton Airport?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Seattle from London Luton Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Seattle to London Luton Airport with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Eastbourne

Wembley

Gatwick

Milton Keynes

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Guildford

Colchester

Harlow

Chelmsford

Why use momondo?

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

It is quick and easy to find Seattle to London 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 London that suits you.

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

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

How can momondo help me find flights from Seattle to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to London.

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

Yes momondo offers price alerts on flights to London from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.