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.

$508 Cheap Flights from London Luton Airport to Seattle in 2025/26

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Find the cheapest flights from London Luton Airport to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 am - 5:00 pmLTN-SEA

19h 00m2 stops

2:35 pm - 10:00 pmSEA-LTN

23h 25m2 stops

$642Multiple Airlines

Find Deal

Mon, Nov 3 - Sun, Nov 16

10:00 am - 5:50 pmLTN-SEA

15h 50m1 stop

7:35 pm - 9:25 pmSEA-LTN

17h 50m1 stop

$667Multiple Airlines

Find Deal

Wed, Oct 15 - Mon, Oct 20

6:00 am - 5:00 pmLTN-SEA

19h 00m2 stops

2:35 pm - 10:00 pmSEA-LTN

23h 25m2 stops

$680Multiple Airlines

Find Deal

Mon, Dec 8 - Sun, Dec 14

9:00 am - 5:50 pmLTN-SEA

16h 50m2 stops

3:45 pm - 9:45 pmSEA-LTN

22h 00m2 stops

$723Multiple Airlines

Find Deal

Mon, Oct 6 - Fri, Oct 10

9:00 am - 5:50 pmLTN-SEA

16h 50m2 stops

3:45 pm - 4:00 pmSEA-LTN

16h 15m2 stops

$766Multiple Airlines

Find Deal

Mon, Oct 13 - Mon, Oct 20

8:15 am - 8:40 pmLTN-SEA

20h 25m2 stops

3:45 pm - 9:00 pmSEA-LTN

21h 15m2 stops

$872Multiple Airlines

Find Deal

Fri, Oct 3 - Mon, Oct 6

7:25 pm - 5:15 pmLTN-SEA

29h 50m2 stops

12:30 pm - 7:25 pmSEA-LTN

22h 55m2 stops

$880Multiple Airlines

Find Deal

Sun, Oct 5 - Thu, Oct 9

6:15 am - 8:40 pmLTN-SEA

22h 25m1 stop

2:05 pm - 4:00 pmSEA-LTN

17h 55m2 stops

$893Multiple Airlines

Find Deal

Wed, Oct 15 - Mon, Oct 20

8:50 am - 5:00 pmLTN-SEA

16h 10m2 stops

2:35 pm - 9:55 pmSEA-LTN

23h 20m2 stops

$908Multiple Airlines

Find Deal

Fri, Nov 7 - Wed, Nov 12

6:05 am - 10:59 amLTN-SEA

36h 54m3 stops

1:50 pm - 9:00 pmSEA-LTN

23h 10m2 stops

$912Multiple Airlines

Find Deal

Tue, Oct 7 - Fri, Oct 10

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

Mon 11/3

6:00 am-5:00 pm

2 stops19h 00m

Seattle/Tacoma Intl

Sun 11/16

2:35 pm-10:00 pm

2 stops23h 25m

$642

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 10/15

10:00 am-5:50 pm

1 stop15h 50m

Seattle/Tacoma Intl

Mon 10/20

7:35 pm-9:25 pm

1 stop17h 50m

$667

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 12/8

6:00 am-5:00 pm

2 stops19h 00m

Seattle/Tacoma Intl

Sun 12/14

2:35 pm-10:00 pm

2 stops23h 25m

$680

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 10/6

9:00 am-5:50 pm

2 stops16h 50m

Seattle/Tacoma Intl

Fri 10/10

3:45 pm-9:45 pm

2 stops22h 00m

$723

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 10/13

9:00 am-5:50 pm

2 stops16h 50m

Seattle/Tacoma Intl

Mon 10/20

3:45 pm-4:00 pm

2 stops16h 15m

$766

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 10/3

8:15 am-8:40 pm

2 stops20h 25m

Seattle/Tacoma Intl

Mon 10/6

3:45 pm-9:00 pm

2 stops21h 15m

$872

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 10/5

7:25 pm-5:15 pm

2 stops29h 50m

Seattle/Tacoma Intl

Thu 10/9

12:30 pm-7:25 pm

2 stops22h 55m

$880

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 10/15

6:15 am-8:40 pm

1 stop22h 25m

Seattle/Tacoma Intl

Mon 10/20

2:05 pm-4:00 pm

2 stops17h 55m

$893

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 11/7

8:50 am-5:00 pm

2 stops16h 10m

Seattle/Tacoma Intl

Wed 11/12

2:35 pm-9:55 pm

2 stops23h 20m

$908

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 10/7

6:05 am-10:59 am

3 stops36h 54m

Seattle/Tacoma Intl

Fri 10/10

1:50 pm-9:00 pm

2 stops23h 10m

$912

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 $780. 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 $1,017.

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 $843 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $860. 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

Direct flights	None

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

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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. 14h 20m 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

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Federal Way

Kirkland

Tukwila

Shoreline

Lakewood

Centralia

Fife

Cle Elum

Redmond

Westport

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.