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

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Find the cheapest flights from Seattle to London

Round-trip

One-way

Last minute

Cheap return flights

15:45 - 15:40SEA-LTN

15h 55m2 stops

08:45 - 17:50LTN-SEA

17h 05m2 stops

£382Multiple Airlines

Find Deal

Sun, 5 Oct - Thu, 9 Oct

10:00 - 12:35SEA-LTN

18h 35m2 stops

21:50 - 14:16LTN-SEA

24h 26m2 stops

£382Multiple Airlines

Find Deal

Tue, 14 Oct - Tue, 21 Oct

08:10 - 11:45SEA-LTN

19h 35m2 stops

05:50 - 22:06LTN-SEA

24h 16m3 stops

£388Multiple Airlines

Find Deal

Sun, 9 Nov - Fri, 28 Nov

07:30 - 15:40SEA-LTN

24h 10m2 stops

06:00 - 09:31LTN-SEA

35h 31m3 stops

£396Multiple Airlines

Find Deal

Sun, 19 Oct - Mon, 3 Nov

05:50 - 11:45SEA-LTN

21h 55m3 stops

21:00 - 19:16LTN-SEA

30h 16m3 stops

£398Multiple Airlines

Find Deal

Sun, 9 Nov - Sat, 15 Nov

05:50 - 16:15SEA-LTN

27h 25m3 stops

05:50 - 19:16LTN-SEA

21h 26m3 stops

£400Multiple Airlines

Find Deal

Fri, 31 Oct - Fri, 7 Nov

10:00 - 12:35SEA-LTN

18h 35m2 stops

19:20 - 11:55LTN-SEA

24h 35m2 stops

£406Multiple Airlines

Find Deal

Tue, 7 Oct - Wed, 15 Oct

10:00 - 12:35SEA-LTN

18h 35m2 stops

21:55 - 19:31LTN-SEA

29h 36m2 stops

£407Multiple Airlines

Find Deal

Tue, 30 Sep - Mon, 6 Oct

15:10 - 23:05SEA-LTN

23h 55m2 stops

06:00 - 19:16LTN-SEA

21h 16m3 stops

£408Multiple Airlines

Find Deal

Wed, 12 Nov - Sat, 22 Nov

15:10 - 23:05SEA-LTN

23h 55m2 stops

20:55 - 19:16LTN-SEA

30h 21m3 stops

£409Multiple Airlines

Find Deal

Wed, 12 Nov - Fri, 21 Nov

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

Sun 5/10

15:45-15:40

2 stops15h 55m

London Luton

Thu 9/10

08:45-17:50

2 stops17h 05m

£382

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 14/10

10:00-12:35

2 stops18h 35m

London Luton

Tue 21/10

21:50-14:16

2 stops24h 26m

£382

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 9/11

08:10-11:45

2 stops19h 35m

London Luton

Fri 28/11

05:50-22:06

3 stops24h 16m

£388

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 19/10

07:30-15:40

2 stops24h 10m

London Luton

Mon 3/11

06:00-09:31

3 stops35h 31m

£396

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 9/11

05:50-11:45

3 stops21h 55m

London Luton

Sat 15/11

21:00-19:16

3 stops30h 16m

£398

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 31/10

05:50-16:15

3 stops27h 25m

London Luton

Fri 7/11

05:50-19:16

3 stops21h 26m

£400

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 7/10

10:00-12:35

2 stops18h 35m

London Luton

Wed 15/10

19:20-11:55

2 stops24h 35m

£406

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 30/9

10:00-12:35

2 stops18h 35m

London Luton

Mon 6/10

21:55-19:31

2 stops29h 36m

£407

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 12/11

15:10-23:05

2 stops23h 55m

London Luton

Sat 22/11

06:00-19:16

3 stops21h 16m

£408

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 12/11

15:10-23:05

2 stops23h 55m

London Luton

Fri 21/11

20:55-19:16

3 stops30h 21m

£409

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 12h 10m.
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

Chelmsford

Dover

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.