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

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

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

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$521 Cheap Flights from London Luton Airport to Seattle in 2026/27

Find the cheapest flights from London Luton Airport to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 5:00 pmLTN London Luton-SEA Seattle/Tacoma Intl

17h 15m2 stops Dublin Reykjavik Keflavik Intl

2:35 pm - 8:00 pmSEA Seattle/Tacoma Intl-LTN London Luton

21h 25m2 stops Reykjavik Keflavik Intl Dublin

$677Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

6:10 am - 5:00 pmLTN London Luton-SEA Seattle/Tacoma Intl

18h 50m2 stops Dublin Reykjavik Keflavik Intl

2:35 pm - 7:00 pmSEA Seattle/Tacoma Intl-LTN London Luton

20h 25m2 stops Reykjavik Keflavik Intl Dublin

$767Multiple Airlines

Mon, Dec 21 - Sat, Jan 9

6:10 am - 5:00 pmLTN London Luton-SEA Seattle/Tacoma Intl

18h 50m2 stops Dublin Reykjavik Keflavik Intl

2:35 pm - 7:00 pmSEA Seattle/Tacoma Intl-LTN London Luton

20h 25m2 stops Reykjavik Keflavik Intl Dublin

$781Multiple Airlines

Mon, Dec 21 - Sat, Jan 9

7:00 am - 9:57 pmLTN London Luton-SEA Seattle/Tacoma Intl

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

2:35 pm - 6:10 pmSEA Seattle/Tacoma Intl-LTN London Luton

19h 35m2 stops Reykjavik Keflavik Intl Václav Havel Prague

$800Multiple Airlines

Thu, Nov 19 - Thu, Dec 3

6:15 am - 2:22 pmLTN London Luton-SEA Seattle/Tacoma Intl

16h 07m2 stops Dublin Vancouver Intl

10:50 am - 3:30 pmSEA Seattle/Tacoma Intl-LTN London Luton

20h 40m2 stops Vancouver Intl Dublin

$814Multiple Airlines

Wed, Oct 14 - Tue, Oct 20

7:45 am - 5:00 pmLTN London Luton-SEA Seattle/Tacoma Intl

17h 15m2 stops Dublin Reykjavik Keflavik Intl

2:35 pm - 9:00 pmSEA Seattle/Tacoma Intl-LTN London Luton

22h 25m2 stops Reykjavik Keflavik Intl Dublin

$817Multiple Airlines

Tue, Dec 22 - Wed, Dec 30

6:15 am - 5:10 pmLTN London Luton-SEA Seattle/Tacoma Intl

18h 55m1 stop Dublin

7:10 pm - 3:30 pmSEA Seattle/Tacoma Intl-LTN London Luton

12h 20m1 stop Dublin

$825Multiple Airlines

Wed, Oct 14 - Tue, Oct 20

6:15 am - 2:22 pmLTN London Luton-SEA Seattle/Tacoma Intl

16h 07m2 stops Dublin Vancouver Intl

10:50 am - 1:25 pmSEA Seattle/Tacoma Intl-LTN London Luton

18h 35m2 stops Vancouver Intl Dublin

$838Multiple Airlines

Wed, Oct 14 - Tue, Oct 20

6:15 am - 5:10 pmLTN London Luton-SEA Seattle/Tacoma Intl

18h 55m1 stop Dublin

7:10 pm - 3:30 pmSEA Seattle/Tacoma Intl-LTN London Luton

12h 20m1 stop Dublin

$841Multiple Airlines

Wed, Oct 14 - Tue, Oct 20

1:35 pm - 1:00 pmLTN London Luton-SEA Seattle/Tacoma Intl

31h 25m2 stops Berlin Brandenburg Munich Franz Josef Strauss

8:40 am - 5:25 pmSEA Seattle/Tacoma Intl-LTN London Luton

24h 45m3 stops Vancouver Intl Munich Franz Josef Strauss Berlin Brandenburg

$842Multiple Airlines

Thu, Nov 12 - Thu, Nov 19

Cheap last minute flights

Enter your travel dates to find the best prices.

8:15 am - 5:10 pmLTN London Luton-SEA Seattle/Tacoma Intl

16h 55m1 stop Dublin

7:10 pm - 3:25 pmSEA Seattle/Tacoma Intl-LTN London Luton

12h 15m1 stop Dublin

$806Multiple Airlines

Mon, Oct 5 - Sun, Oct 18

8:15 am - 5:10 pmLTN London Luton-SEA Seattle/Tacoma Intl

16h 55m1 stop Dublin

7:10 pm - 9:40 pmSEA Seattle/Tacoma Intl-LTN London Luton

18h 30m1 stop Dublin

$822Multiple Airlines

Mon, Oct 5 - Sun, Oct 18

7:20 pm - 4:00 pmLTN London Luton-SEA Seattle/Tacoma Intl

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

5:40 pm - 7:25 pmSEA Seattle/Tacoma Intl-LTN London Luton

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

$854Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

11:00 am - 8:40 pmLTN London Luton-SEA Seattle/Tacoma Intl

17h 40m2 stops Dublin Reykjavik Keflavik Intl

3:40 pm - 9:55 pmSEA Seattle/Tacoma Intl-LTN London Luton

22h 15m2 stops Reykjavik Keflavik Intl Dublin

$870Multiple Airlines

Sat, Oct 3 - Sat, Oct 17

11:00 am - 8:40 pmLTN London Luton-SEA Seattle/Tacoma Intl

17h 40m2 stops Dublin Reykjavik Keflavik Intl

3:40 pm - 9:55 pmSEA Seattle/Tacoma Intl-LTN London Luton

22h 15m2 stops Reykjavik Keflavik Intl Dublin

$873Multiple Airlines

Sat, Oct 3 - Sat, Oct 17

9:40 am - 9:40 amLTN London Luton-SEA Seattle/Tacoma Intl

32h 00m2 stops Dublin Calgary

3:40 pm - 12:30 amSEA Seattle/Tacoma Intl-LTN London Luton

24h 50m2 stops Reykjavik Keflavik Intl Dublin

$980Multiple Airlines

Tue, Oct 6 - Fri, Oct 9

6:15 am - 5:10 pmLTN London Luton-SEA Seattle/Tacoma Intl

18h 55m1 stop Dublin

7:10 pm - 10:10 pmSEA Seattle/Tacoma Intl-LTN London Luton

19h 00m1 stop Dublin

$999Multiple Airlines

Wed, Oct 7 - Tue, Oct 13

8:15 am - 5:10 pmLTN London Luton-SEA Seattle/Tacoma Intl

16h 55m1 stop Dublin

7:10 pm - 10:50 pmSEA Seattle/Tacoma Intl-LTN London Luton

19h 40m1 stop Dublin

$1,005Multiple Airlines

Mon, Oct 5 - Mon, Oct 19

6:20 am - 5:55 pmLTN London Luton-SEA Seattle/Tacoma Intl

19h 35m2 stops Glasgow Intl Reykjavik Keflavik Intl

3:40 pm - 5:00 pmSEA Seattle/Tacoma Intl-LTN London Luton

17h 20m2 stops Reykjavik Keflavik Intl Glasgow Intl

$1,050Multiple Airlines

Sat, Oct 3 - Sat, Oct 10

8:35 pm - 3:40 pmLTN London Luton-SEA Seattle/Tacoma Intl

27h 05m2 stops Milan Malpensa Frankfurt am Main

6:00 pm - 7:55 pmSEA Seattle/Tacoma Intl-LTN London Luton

17h 55m2 stops Frankfurt am Main Milan Malpensa

$1,050Multiple Airlines

Tue, Oct 6 - Fri, Oct 9

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 11/10

7:45 am-5:00 pm

2 stops17h 15m

Seattle/Tacoma Intl

Tue 11/17

2:35 pm-8:00 pm

2 stops21h 25m

$677

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Mon 12/21

6:10 am-5:00 pm

2 stops18h 50m

Seattle/Tacoma Intl

Sat 1/9

2:35 pm-7:00 pm

2 stops20h 25m

$767

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Mon 12/21

6:10 am-5:00 pm

2 stops18h 50m

Seattle/Tacoma Intl

Sat 1/9

2:35 pm-7:00 pm

2 stops20h 25m

$781

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Thu 11/19

7:00 am-9:57 pm

3 stops22h 57m

Seattle/Tacoma Intl

Thu 12/3

2:35 pm-6:10 pm

2 stops19h 35m

$800

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 10/14

6:15 am-2:22 pm

2 stops16h 07m

Seattle/Tacoma Intl

Tue 10/20

10:50 am-3:30 pm

2 stops20h 40m

$814

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 12/22

7:45 am-5:00 pm

2 stops17h 15m

Seattle/Tacoma Intl

Wed 12/30

2:35 pm-9:00 pm

2 stops22h 25m

$817

Quickest round-trip

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 10/14

6:15 am-5:10 pm

1 stop18h 55m

Seattle/Tacoma Intl

Tue 10/20

7:10 pm-3:30 pm

1 stop12h 20m

$825

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 10/14

6:15 am-2:22 pm

2 stops16h 07m

Seattle/Tacoma Intl

Tue 10/20

10:50 am-1:25 pm

2 stops18h 35m

$838

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 10/14

6:15 am-5:10 pm

1 stop18h 55m

Seattle/Tacoma Intl

Tue 10/20

7:10 pm-3:30 pm

1 stop12h 20m

$841

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Thu 11/12

1:35 pm-1:00 pm

2 stops31h 25m

Seattle/Tacoma Intl

Thu 11/19

8:40 am-5:25 pm

3 stops24h 45m

$842

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Luton Airport to Seattle

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 day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from London Luton Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $788. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from London Luton Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $914.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from London Luton Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $806 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $896. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from London Luton Airport to Seattle

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

Estimated round-trip price

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

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

Best Price Found	$521
Fastest flight time	16h 07m
Direct flights	None

The best one-way flight to Seattle from London Luton Airport in the past 72 hours is $521. The best round-trip flight deal from London Luton Airport to Seattle found on momondo in the last 72 hours is $677.

The fastest flight from London Luton Airport to Seattle takes 16h 07m

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

Search flight deals

Frequently asked questions about flying from London Luton Airport to Seattle

How far is London Luton to Seattle/Tacoma Intl by plane?
The straight-line distance from London Luton to Seattle/Tacoma Intl is 4754.4 mi. 16h 07m is a normal flight duration for this route.
When did momondo last update prices for flights from London Luton Airport to Seattle/Tacoma Intl Airport?
Prices for flights from London Luton Airport to Seattle/Tacoma Intl Airport refresh daily.
How old do you have to be to fly from London Luton Airport to Seattle/Tacoma Intl 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 London Luton Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Kent

Redmond

Olympia

Lakewood

Federal Way

Puyallup

Fife

Lynnwood

Tukwila

Cle Elum

Marysville

Lacey

Centralia

Kirkland

Shoreline

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle from London which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between London and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Seattle from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.