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.

£280 Cheap Flights from Seattle to London Luton Airport in 2026

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Find the cheapest flights from Seattle to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:40 - 23:35

SEA

LTN

23h 55m

2 stops

09:40 - 22:53

LTN

SEA

21h 13m

3 stops

£459Multiple Airlines

Tue, 21 Apr - Tue, 28 Apr

05:40 - 19:55

SEA

LTN

30h 15m

3 stops

06:55 - 21:53

LTN

SEA

22h 58m

3 stops

£471Multiple Airlines

Thu, 16 Apr - Thu, 23 Apr

15:40 - 23:35

SEA

LTN

23h 55m

2 stops

09:40 - 18:45

LTN

SEA

17h 05m

2 stops

£485Multiple Airlines

Tue, 21 Apr - Tue, 28 Apr

19:00 - 22:50

SEA

LTN

19h 50m

2 stops

09:40 - 18:45

LTN

SEA

17h 05m

2 stops

£515Multiple Airlines

Tue, 5 May - Tue, 12 May

15:40 - 23:35

SEA

LTN

23h 55m

2 stops

09:15 - 09:38

LTN

SEA

32h 23m

3 stops

£516Multiple Airlines

Tue, 21 Apr - Tue, 28 Apr

18:00 - 23:50

SEA

LTN

21h 50m

2 stops

05:40 - 16:00

LTN

SEA

18h 20m

2 stops

£517Multiple Airlines

Fri, 8 May - Fri, 15 May

15:40 - 15:30

SEA

LTN

15h 50m

2 stops

06:15 - 17:55

LTN

SEA

19h 40m

2 stops

£521Multiple Airlines

Tue, 28 Apr - Wed, 13 May

17:40 - 22:40

SEA

LTN

21h 00m

2 stops

05:40 - 15:40

LTN

SEA

18h 00m

2 stops

£522Multiple Airlines

Wed, 6 May - Wed, 13 May

15:40 - 21:40

SEA

LTN

22h 00m

2 stops

09:40 - 17:55

LTN

SEA

16h 15m

2 stops

£530Multiple Airlines

Sun, 26 Apr - Tue, 12 May

19:00 - 18:25

SEA

LTN

15h 25m

2 stops

06:20 - 18:45

LTN

SEA

20h 25m

2 stops

£531Multiple Airlines

Thu, 23 Apr - Fri, 8 May

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

Cheapest return flight

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 21/4

15:40-23:35

2 stops23h 55m

London Luton

Tue 28/4

09:40-22:53

3 stops21h 13m

£459

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 16/4

05:40-19:55

3 stops30h 15m

London Luton

Thu 23/4

06:55-21:53

3 stops22h 58m

£471

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 21/4

15:40-23:35

2 stops23h 55m

London Luton

Tue 28/4

09:40-18:45

2 stops17h 05m

£485

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 5/5

19:00-22:50

2 stops19h 50m

London Luton

Tue 12/5

09:40-18:45

2 stops17h 05m

£515

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 21/4

15:40-23:35

2 stops23h 55m

London Luton

Tue 28/4

09:15-09:38

3 stops32h 23m

£516

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 8/5

18:00-23:50

2 stops21h 50m

London Luton

Fri 15/5

05:40-16:00

2 stops18h 20m

£517

Fastest return journey

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 28/4

15:40-15:30

2 stops15h 50m

London Luton

Wed 13/5

06:15-17:55

2 stops19h 40m

£521

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 6/5

17:40-22:40

2 stops21h 00m

London Luton

Wed 13/5

05:40-15:40

2 stops18h 00m

£522

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sun 26/4

15:40-21:40

2 stops22h 00m

London Luton

Tue 12/5

09:40-17:55

2 stops16h 15m

£530

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 23/4

19:00-18:25

2 stops15h 25m

London Luton

Fri 8/5

06:20-18:45

2 stops20h 25m

£531

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

Fastest flight time	12h 15m
Direct flights	None

The fastest flight from Seattle to London Luton Airport takes 12h 15m

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 15m.
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

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Wembley

Guildford

Chelmsford

Hayes

Dover

Folkestone

Worthing

Colchester

Bedford

Ramsgate

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.