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$738+ Cheap flights from Luxembourg (LUX) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
LUX — SEA
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Luxembourg to Seattle

Cheapest flights from Luxembourg to Seattle
Explore the most affordable flight options available from Luxembourg to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amLUX - SEA
2 stops21h 36mDelta
Sat 1/247:40 amSEA - LUX
2 stops25h 10mDelta
Deal found 12/14$833
This KLM deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 pmLUX - SEA
1 stop26h 30mMultiple Airlines
Sat 1/241:40 pmSEA - LUX
1 stop11h 55mMultiple Airlines
Deal found 12/13$882
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amLUX - SEA
2 stops21h 36mDelta
Mon 1/57:10 amSEA - LUX
2 stops18h 15mDelta
Deal found 12/13$1,136
This KLM deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amLUX - SEA
1 stop14h 50mKLM
Mon 1/53:10 pmSEA - LUX
1 stop34h 15mKLM
Deal found 12/13$1,310
This FlightHub deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:10 amLUX - SEA
3 stops24h 36mAir Canada
Sat 1/248:10 amSEA - LUX
2 stops16h 50mAir Canada
Deal found 12/14$1,818
This FlightHub deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:55 amLUX - SEA
3 stops24h 51mAir Canada
Mon 1/58:10 amSEA - LUX
2 stops25h 05mAir Canada
Deal found 12/13$2,340

Find flight deals from Luxembourg to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Luxembourg (LUX) 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 December 14, 2025.

Round-trip from

$738
(Scandinavian Airlines)

Popular in

June

Cheapest in

October

Average price

$907
From Luxembourg to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Luxembourg 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 2,558,603 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from Luxembourg to Seattle that are best for you.

Fly from

Luxembourg

Fly to

Seattle

Route

Depart

Return

Price

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Fri 2/27

6:15 pm-9:52 pm

2 stops36h 37m

Seattle/Tacoma Intl

Mon 3/2

6:05 am-10:40 pm

2 stops31h 35m

$738

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Mon 4/27

6:05 am-3:40 pm

1 stop18h 35m

Seattle/Tacoma Intl

Fri 5/8

5:40 pm-7:45 am

1 stop29h 05m

$793

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Mon 4/27

10:35 am-8:52 pm

2 stops19h 17m

Seattle/Tacoma Intl

Fri 5/8

6:50 pm-7:35 pm

1 stop15h 45m

$825

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Fri 2/27

11:00 am-4:55 pm

1 stop14h 55m

Seattle/Tacoma Intl

Mon 3/2

6:50 pm-9:05 pm

1 stop17h 15m

$826

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 1/17

11:20 am-4:55 pm

1 stop14h 35m

Seattle/Tacoma Intl

Sun 2/1

8:04 am-9:30 am

2 stops40h 26m

$826

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 1/17

6:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

Sun 2/1

3:05 pm-5:50 pm

1 stop17h 45m

$827

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 1/17

11:20 am-4:55 pm

1 stop14h 35m

Seattle/Tacoma Intl

Sun 2/1

6:50 pm-9:30 am

1 stop29h 40m

$827

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 1/17

11:20 am-9:50 pm

2 stops19h 30m

Seattle/Tacoma Intl

Sun 2/1

6:50 pm-9:30 am

1 stop29h 40m

$830

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Mon 4/27

6:05 am-7:00 pm

2 stops21h 55m

Seattle/Tacoma Intl

Fri 5/8

7:20 am-9:55 am

2 stops17h 35m

$831

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 12/28

6:00 am-6:36 pm

2 stops21h 36m

Seattle/Tacoma Intl

Sat 1/24

7:40 am-5:50 pm

2 stops25h 10m

$833

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 12 results
1
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Best time to book a flight from Luxembourg to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Luxembourg with our price prediction graph.
Estimated round-trip 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 14, 2025.
See what other customers who have flown with American Airlines, Lufthansa, and British Airways from Luxembourg to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,051 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,051 reviews
American Airlines
7.2
Good
11,051 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Lufthansa
6.8
Okay
7,628 reviews
American Airlines
7.2
Good
11,051 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
British Airways
6.7
Okay
7,575 reviews
American Airlines
7.2
Good
11,051 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Related info for your journey

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

  • How long is the flight from Luxembourg to Seattle?

    Departing from Luxembourg to Seattle will take you 19h 17m. The distance from Luxembourg to Seattle is about 5057 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Luxembourg to Seattle round-trip?

    According to our current data, American Airlines ($591), Lufthansa ($595), and British Airways ($602) offers the cheapest pricing from Luxembourg to Seattle. You may be able to fly from Luxembourg to Seattle for 29% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luxembourg 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Luxembourg to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Luxembourg to Portland flights

Top 3 airlines flying from Luxembourg to Seattle

Discover the top 3 airlines that operate flights from Luxembourg to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$591Average$691FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$595Average$785FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$602Average$734FlexibilityNo cancel feeOn-time70%

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