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Cheap flights from London Luton Airport to Seattle from £381

LTN — SEA
25 Sep — 2 Oct1
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

Fri 9/1006:20 -
2 stops22h 20m
Fri 16/1015:40 -
2 stops24h 50m
Deal found 25/8£535
Thu 8/1007:00 -
2 stops17h 00m
Thu 15/1018:05 -
2 stops17h 50m
Deal found 24/8£554
Thu 22/1009:25 -
2 stops16h 30m
Mon 2/1114:35 -
2 stops19h 25m
Deal found 25/8£595
Thu 1/1007:00 -
2 stops17h 00m
Wed 14/1017:40 -
2 stops18h 15m
Deal found 21/8£609
Wed 7/1005:40 -
2 stops18h 00m
Wed 14/1017:40 -
2 stops21h 00m
Deal found 23/8£610
Wed 9/920:50 -
2 stops27h 10m
Tue 15/918:05 -
2 stops18h 05m
Deal found 24/8£619

Find flight deals from Luton to Seattle

Round-trip from

£535

One-way from

£381

Popular in

August

Cheapest in

February

Average price

£628
9/10-16/10
  • 9/10-16/10
  • 4 total stops
  • 47h 10m total
  • London to Seattle
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3/10
  • 3/10
  • 2 total stops
  • 24h 20m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Thu 8/10

05:40-16:00

2 stops18h 20m

Seattle/Tacoma Intl

Thu 15/10

18:05-23:00

2 stops20h 55m

£556

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Thu 22/10

09:25-17:55

2 stops16h 30m

Seattle/Tacoma Intl

Mon 2/11

14:35-18:00

2 stops19h 25m

£595
Fastest return journey

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 6/10

09:40-17:10

1 stop15h 30m

Seattle/Tacoma Intl

Tue 13/10

19:10-15:30

1 stop12h 20m

£632

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 7/10

06:15-17:10

1 stop18h 55m

Seattle/Tacoma Intl

Wed 14/10

19:10-15:25

1 stop12h 15m

£642

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 16/9

06:15-17:10

1 stop18h 55m

Seattle/Tacoma Intl

Thu 1/10

19:10-16:45

1 stop13h 35m

£780

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Sun 6/9

06:25-11:45

1 stop13h 20m

Seattle/Tacoma Intl

Wed 16/9

15:40-21:05

2 stops21h 25m

£782

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Thu 8/10

09:30-20:40

2 stops19h 10m

Seattle/Tacoma Intl

Wed 21/10

19:00-21:50

2 stops18h 50m

£791

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 11/11

08:00-17:00

1 stop17h 00m

Seattle/Tacoma Intl

Wed 18/11

14:35-17:20

2 stops18h 45m

£815

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Sun 6/9

09:00-18:45

2 stops17h 45m

Seattle/Tacoma Intl

Sun 20/9

19:10-15:25

1 stop12h 15m

£877

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 15/9

09:40-18:45

2 stops17h 05m

Seattle/Tacoma Intl

Thu 15/10

19:00-18:25

2 stops15h 25m

£887

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Related info for your journey

  • 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
Federal Way
SeaTac

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How does Cheapflights help users find flights from Luton to Seattle?

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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.

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