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.

$535 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

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Enter your travel dates to find the best prices.

9:00 am - 5:00 pmLTN-SEA

16h 00m2 stops

2:35 pm - 8:05 pmSEA-LTN

21h 30m2 stops

$669Multiple Airlines

Find Deal

Thu, Feb 19 - Tue, Mar 3

6:00 am - 5:00 pmLTN-SEA

19h 00m1 stop

2:35 pm - 2:50 pmSEA-LTN

16h 15m1 stop

$675Multiple Airlines

Find Deal

Sun, Feb 15 - Sun, Feb 22

8:50 pm - 3:40 pmLTN-SEA

26h 50m2 stops

3:10 pm - 5:50 pmSEA-LTN

18h 40m2 stops

$802Multiple Airlines

Find Deal

Wed, Nov 26 - Tue, Dec 2

6:50 am - 5:00 pmLTN-SEA

18h 10m2 stops

2:35 pm - 8:05 pmSEA-LTN

21h 30m2 stops

$819Multiple Airlines

Find Deal

Wed, Dec 24 - Tue, Jan 6

9:00 am - 5:00 pmLTN-SEA

16h 00m2 stops

2:35 pm - 8:05 pmSEA-LTN

21h 30m2 stops

$828Multiple Airlines

Find Deal

Tue, Dec 23 - Tue, Jan 6

8:50 pm - 3:40 pmLTN-SEA

26h 50m2 stops

3:10 pm - 9:55 pmSEA-LTN

22h 45m2 stops

$842Multiple Airlines

Find Deal

Wed, Nov 26 - Sun, Dec 7

8:50 pm - 3:40 pmLTN-SEA

26h 50m2 stops

2:35 pm - 4:10 pmSEA-LTN

17h 35m2 stops

$852Multiple Airlines

Find Deal

Wed, Nov 26 - Mon, Dec 1

9:00 am - 5:00 pmLTN-SEA

16h 00m2 stops

2:35 pm - 5:00 pmSEA-LTN

18h 25m2 stops

$878Multiple Airlines

Find Deal

Fri, Dec 5 - Sun, Dec 7

6:45 am - 11:08 pmLTN-SEA

24h 23m3 stops

7:00 pm - 4:45 pmSEA-LTN

13h 45m2 stops

$885Multiple Airlines

Find Deal

Mon, Mar 30 - Wed, Apr 1

8:00 am - 5:00 pmLTN-SEA

17h 00m1 stop

3:10 pm - 5:50 pmSEA-LTN

18h 40m2 stops

$931Multiple Airlines

Find Deal

Wed, Nov 26 - Tue, Dec 2

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 2/19

9:00 am-5:00 pm

2 stops16h 00m

Seattle/Tacoma Intl

Tue 3/3

2:35 pm-8:05 pm

2 stops21h 30m

$669

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 2/15

6:00 am-5:00 pm

1 stop19h 00m

Seattle/Tacoma Intl

Sun 2/22

2:35 pm-2:50 pm

1 stop16h 15m

$675

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 11/26

8:50 pm-3:40 pm

2 stops26h 50m

Seattle/Tacoma Intl

Tue 12/2

3:10 pm-5:50 pm

2 stops18h 40m

$802

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 12/24

6:50 am-5:00 pm

2 stops18h 10m

Seattle/Tacoma Intl

Tue 1/6

2:35 pm-8:05 pm

2 stops21h 30m

$819

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 12/23

9:00 am-5:00 pm

2 stops16h 00m

Seattle/Tacoma Intl

Tue 1/6

2:35 pm-8:05 pm

2 stops21h 30m

$828

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 11/26

8:50 pm-3:40 pm

2 stops26h 50m

Seattle/Tacoma Intl

Sun 12/7

3:10 pm-9:55 pm

2 stops22h 45m

$842

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 11/26

8:50 pm-3:40 pm

2 stops26h 50m

Seattle/Tacoma Intl

Mon 12/1

2:35 pm-4:10 pm

2 stops17h 35m

$852

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 12/5

9:00 am-5:00 pm

2 stops16h 00m

Seattle/Tacoma Intl

Sun 12/7

2:35 pm-5:00 pm

2 stops18h 25m

$878

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 3/30

6:45 am-11:08 pm

3 stops24h 23m

Seattle/Tacoma Intl

Wed 4/1

7:00 pm-4:45 pm

2 stops13h 45m

$885

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 11/26

8:00 am-5:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 12/2

3:10 pm-5:50 pm

2 stops18h 40m

$931

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 $773. 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 $1,019.

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

Flying to Seattle from London Luton Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $834 when looking at flights departing in the afternoon. 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 24m 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

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Federal Way

Lakewood

Cle Elum

Fife

Centralia

Kirkland

Shoreline

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.