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.

$384 Cheap Flights from London Luton Airport to Seattle in 2025

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Find the cheapest flights from London Luton Airport to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

8:45 am - 5:50 pmLTN-SEA

17h 05m1 stop

7:35 pm - 8:40 pmSEA-LTN

17h 05m1 stop

$627

Find Deal

Thu, Sep 4 - Thu, Sep 18

9:00 am - 5:50 pmLTN-SEA

16h 50m1 stop

7:35 pm - 9:25 pmSEA-LTN

17h 50m1 stop

$637

Find Deal

Mon, Sep 8 - Mon, Sep 22

10:00 am - 5:50 pmLTN-SEA

15h 50m1 stop

7:35 pm - 3:40 pmSEA-LTN

12h 05m1 stop

$664

Find Deal

Wed, Sep 17 - Sun, Sep 21

9:00 am - 5:50 pmLTN-SEA

16h 50m1 stop

7:35 pm - 10:10 pmSEA-LTN

18h 35m1 stop

$674

Find Deal

Mon, Sep 8 - Tue, Sep 23

9:55 am - 5:50 pmLTN-SEA

15h 55m1 stop

7:35 pm - 7:25 pmSEA-LTN

15h 50m1 stop

$699

Find Deal

Sun, Sep 14 - Sun, Sep 21

8:45 am - 8:40 pmLTN-SEA

19h 55m2 stops

3:45 pm - 8:40 pmSEA-LTN

20h 55m2 stops

$732

Find Deal

Thu, Aug 28 - Thu, Sep 4

9:55 am - 5:50 pmLTN-SEA

15h 55m1 stop

7:35 pm - 7:25 pmSEA-LTN

15h 50m1 stop

$739

Find Deal

Sun, Sep 14 - Sun, Sep 21

10:00 am - 5:50 pmLTN-SEA

15h 50m2 stops

3:45 pm - 10:10 pmSEA-LTN

22h 25m2 stops

$751

Find Deal

Tue, Oct 14 - Tue, Oct 21

10:45 am - 5:50 pmLTN-SEA

15h 05m2 stops

3:45 pm - 1:45 pmSEA-LTN

14h 00m2 stops

$770

Find Deal

Sat, Sep 13 - Sat, Sep 20

11:30 am - 5:50 pmLTN-SEA

14h 20m1 stop

7:35 pm - 10:30 pmSEA-LTN

18h 55m1 stop

$782

Find Deal

Fri, Sep 12 - Sat, Sep 20

momondo Fare Finder

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

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 9/4

8:45 am-5:50 pm

1 stop17h 05m

Seattle/Tacoma Intl

Thu 9/18

7:35 pm-8:40 pm

1 stop17h 05m

$627

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 9/8

9:00 am-5:50 pm

1 stop16h 50m

Seattle/Tacoma Intl

Mon 9/22

7:35 pm-9:25 pm

1 stop17h 50m

$637

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 9/17

10:00 am-5:50 pm

1 stop15h 50m

Seattle/Tacoma Intl

Sun 9/21

7:35 pm-3:40 pm

1 stop12h 05m

$664

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 9/8

9:00 am-5:50 pm

1 stop16h 50m

Seattle/Tacoma Intl

Tue 9/23

7:35 pm-10:10 pm

1 stop18h 35m

$674

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 9/14

9:55 am-5:50 pm

1 stop15h 55m

Seattle/Tacoma Intl

Sun 9/21

7:35 pm-7:25 pm

1 stop15h 50m

$699

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 8/28

8:45 am-8:40 pm

2 stops19h 55m

Seattle/Tacoma Intl

Thu 9/4

3:45 pm-8:40 pm

2 stops20h 55m

$732

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 9/14

9:55 am-5:50 pm

1 stop15h 55m

Seattle/Tacoma Intl

Sun 9/21

7:35 pm-7:25 pm

1 stop15h 50m

$739

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 10/14

10:00 am-5:50 pm

2 stops15h 50m

Seattle/Tacoma Intl

Tue 10/21

3:45 pm-10:10 pm

2 stops22h 25m

$751

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 9/13

10:45 am-5:50 pm

2 stops15h 05m

Seattle/Tacoma Intl

Sat 9/20

3:45 pm-1:45 pm

2 stops14h 00m

$770

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 9/12

11:30 am-5:50 pm

1 stop14h 20m

Seattle/Tacoma Intl

Sat 9/20

7:35 pm-10:30 pm

1 stop18h 55m

$782

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $791. 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 $1,145.

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 $845 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $894. 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	$384
Fastest flight time	12h 40m
Direct flights	None
Airports in Seattle	1 airport

The best one-way flight to Seattle from London Luton Airport in the past 72 hours is $384. The best round-trip flight deal from London Luton Airport to Seattle found on momondo in the last 72 hours is $627.

The fastest flight from London Luton Airport to Seattle takes 12h 40m

There are no direct flights from London Luton Airport to Seattle. Popular non-direct route for this connection is London Luton Airport - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

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. 12h 40m 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.

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Renton

Kent

Federal Way

Puyallup

Lynnwood

Marysville

Tukwila

Kirkland

Lakewood

Fife

Centralia

Cle Elum

Shoreline

Westport

Redmond

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.