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.

£195 Cheap Flights from Seattle to London Luton Airport in 2025/26

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to London

Round-trip

One-way

Last minute

Cheap return flights

15:35 - 20:05SEA-LTN

21h 30m2 stops

09:00 - 17:00LTN-SEA

16h 00m2 stops

£377

Find Deal

Tue, 28 Oct - Tue, 4 Nov

15:45 - 21:25SEA-LTN

21h 40m2 stops

09:00 - 17:50LTN-SEA

16h 50m2 stops

£384

Find Deal

Mon, 6 Oct - Mon, 13 Oct

15:45 - 15:45SEA-LTN

16h 00m2 stops

09:00 - 17:50LTN-SEA

16h 50m2 stops

£386

Find Deal

Fri, 3 Oct - Mon, 6 Oct

08:15 - 20:05SEA-LTN

27h 50m2 stops

19:05 - 12:10LTN-SEA

25h 05m2 stops

£394

Find Deal

Tue, 25 Nov - Mon, 8 Dec

21:05 - 23:05SEA-LTN

19h 00m1 stop

05:50 - 18:20LTN-SEA

20h 30m1 stop

£403

Find Deal

Wed, 29 Oct - Fri, 7 Nov

19:35 - 15:25SEA-LTN

11h 50m1 stop

10:00 - 17:50LTN-SEA

15h 50m1 stop

£407

Find Deal

Wed, 15 Oct - Tue, 21 Oct

08:15 - 11:55SEA-LTN

19h 40m2 stops

20:00 - 19:16LTN-SEA

31h 16m3 stops

£425

Find Deal

Fri, 28 Nov - Thu, 4 Dec

10:00 - 16:05SEA-LTN

22h 05m2 stops

21:50 - 14:16LTN-SEA

24h 26m2 stops

£429

Find Deal

Sat, 11 Oct - Tue, 21 Oct

15:45 - 18:05SEA-LTN

18h 20m2 stops

06:00 - 17:50LTN-SEA

19h 50m2 stops

£435

Find Deal

Thu, 9 Oct - Wed, 22 Oct

19:35 - 22:10SEA-LTN

18h 35m1 stop

10:00 - 17:50LTN-SEA

15h 50m1 stop

£439

Find Deal

Tue, 14 Oct - Tue, 21 Oct

momondo Fare Finder

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

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 28/10

15:35-20:05

2 stops21h 30m

London Luton

Tue 4/11

09:00-17:00

2 stops16h 00m

£377

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 6/10

15:45-21:25

2 stops21h 40m

London Luton

Mon 13/10

09:00-17:50

2 stops16h 50m

£384

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 3/10

15:45-15:45

2 stops16h 00m

London Luton

Mon 6/10

09:00-17:50

2 stops16h 50m

£386

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 25/11

08:15-20:05

2 stops27h 50m

London Luton

Mon 8/12

19:05-12:10

2 stops25h 05m

£394

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 29/10

21:05-23:05

1 stop19h 00m

London Luton

Fri 7/11

05:50-18:20

1 stop20h 30m

£403

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 15/10

19:35-15:25

1 stop11h 50m

London Luton

Tue 21/10

10:00-17:50

1 stop15h 50m

£407

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 28/11

08:15-11:55

2 stops19h 40m

London Luton

Thu 4/12

20:00-19:16

3 stops31h 16m

£425

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sat 11/10

10:00-16:05

2 stops22h 05m

London Luton

Tue 21/10

21:50-14:16

2 stops24h 26m

£429

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 9/10

15:45-18:05

2 stops18h 20m

London Luton

Wed 22/10

06:00-17:50

2 stops19h 50m

£435

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 14/10

19:35-22:10

1 stop18h 35m

London Luton

Tue 21/10

10:00-17:50

1 stop15h 50m

£439

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

Direct flights	None

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

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 11h 50m.
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.

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

Luton

Milton Keynes

Maidstone

Gatwick

Slough

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Colchester

Worthing

Dover

Chelmsford

Hayes

Dartford

Winchester

Hounslow

Stansted

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.