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Cheap flights from London Luton Airport to Seattle from £401

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
8 1月 — 15 1月1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Seattle
Explore the most affordable flight options available from Luton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 12月 2025.

週三 24/1207:00LTN - SEA
2 stops16h 40mMultiple Airlines
週一 5/114:35SEA - LTN
2 stops23h 15mMultiple Airlines
Deal found 6/12£715
週三 24/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
週三 7/114:35SEA - LTN
2 stops21h 25mMultiple Airlines
Deal found 8/12£726
週三 24/1207:00LTN - SEA
2 stops18h 00mMultiple Airlines
週四 8/114:35SEA - LTN
2 stops23h 50mMultiple Airlines
Deal found 6/12£734
週五 19/1205:50LTN - SEA
1 stop20h 30mMultiple Airlines
週日 4/120:05SEA - LTN
1 stop17h 55mMultiple Airlines
Deal found 8/12£745
週三 24/1207:00LTN - SEA
2 stops16h 40mMultiple Airlines
週日 4/108:10SEA - LTN
2 stops19h 35mMultiple Airlines
Deal found 6/12£780
週五 26/1210:25LTN - SEA
1 stop15h 55mMultiple Airlines
週五 2/120:05SEA - LTN
1 stop16h 05mMultiple Airlines
Deal found 6/12£795
週二 23/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
週日 28/1220:05SEA - LTN
1 stop12h 40mMultiple Airlines
Deal found 7/12£826
週日 7/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
週六 31/114:35SEA - LTN
2 stops23h 50mMultiple Airlines
Deal found 7/12£844
週一 15/1206:00LTN - SEA
1 stop20h 20mMultiple Airlines
週五 2/120:05SEA - LTN
1 stop16h 05mMultiple Airlines
Deal found 7/12£858
週三 24/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
週日 28/1220:05SEA - LTN
1 stop12h 40mMultiple Airlines
Deal found 8/12£858

Find flight deals from Luton to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 12月 2025.

Round-trip from

£576

One-way from

£401

Popular in

July

Cheapest in

January

Average price

£640
26/1-8/2
  • 26/1-8/2
  • 4 total stops
  • 34h 25m total
  • London to Seattle
Search Deals
31/3
  • 31/3
  • 2 total stops
  • 30h 08m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 12月 2025.
Use the filters below to find and compare flights from London Luton Airport to Seattle that are best for you.

Fly from

Luton

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週四 22/1

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

週四 29/1

14:35-16:00

2 stops17h 25m

£600

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週一 26/1

06:00-17:00

2 stops19h 00m

Seattle/Tacoma Intl

週日 8/2

14:35-22:00

2 stops23h 25m

£606

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週二 5/5

08:05-20:28

2 stops20h 23m

Seattle/Tacoma Intl

週二 19/5

15:40-22:55

2 stops23h 15m

£618

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週二 3/3

07:00-17:00

1 stop18h 00m

Seattle/Tacoma Intl

週三 18/3

15:35-12:55

1 stop14h 20m

£633

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週五 23/1

07:00-10:22

3 stops35h 22m

Seattle/Tacoma Intl

週五 30/1

15:10-21:55

2 stops22h 45m

£648

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週五 30/1

07:00-10:22

3 stops35h 22m

Seattle/Tacoma Intl

週日 8/2

14:35-17:00

2 stops18h 25m

£654

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週三 21/1

07:00-09:31

3 stops34h 31m

Seattle/Tacoma Intl

週六 31/1

14:35-18:20

2 stops19h 45m

£687

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週二 31/3

12:20-10:28

2 stops30h 08m

£401

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週二 23/12

20:50-15:40

2 stops26h 50m

£402

LondonSeattle

LTN - SEA

LTNSEA

London Luton

週一 11/5

05:30-15:40

2 stops18h 10m

£404

Flights are sorted by cheapest return flights first.

Deals found on 5/12

Showing 1-10 of 17 results
1
2

Best time to book a flight from Luton to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Luton with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Luton to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from London Luton?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from London Luton. On average, Seattle/Tacoma Intl has 0 inbound flights from London Luton per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • Can I find deals for flights from Luton to Seattle that include hotel bookings?

    Yes. In addition to deals on Luton to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Luton to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to Seattle.

  • Can I find deals for business class flights from Luton to Seattle?

    Yes. Cheapflights offers flight deals from Luton to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac

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Why should you use Cheapflights to find cheap flight tickets from Luton to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Luton.

Can Cheapflights find flights from Luton to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Luton to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from Luton to Seattle become cheaper?

Of course! You can now track prices for flights from Luton to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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