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$712+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
LUX — SEA
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap 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 March 31, 2025.

Round-trip from

$712
(KLM)

Popular in

December

Cheapest in

February

Average price

$781
From Luxembourg to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 31, 2025.

This KLM deal was found by Cheapflights users on 3/31. 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 6/2211:00 amLUX - SEA
1 stop33h 40mMultiple Airlines
Sun 7/61:30 pmSEA - LUX
1 stop12h 05mMultiple Airlines
Deal found 3/31$712
This Air France deal was found by Cheapflights users on 3/31. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/277:30 amLUX - SEA
1 stop12h 45mAir France
Sat 7/121:30 pmSEA - LUX
1 stop15h 20mAir France
Deal found 3/31$718
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/229:20 pmLUX - SEA
2 stops27h 40mAmerican Airlines
Sun 7/65:40 pmSEA - LUX
2 stops17h 40mAmerican Airlines
Deal found 3/31$722
This Delta deal was found by Cheapflights users on 3/31. 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.
Sat 6/216:10 amLUX - SEA
1 stop14h 30mDelta
Sat 7/510:17 amSEA - LUX
2 stops22h 08mDelta
Deal found 3/31$729
This Justfly.com deal was found by Cheapflights users on 3/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:15 amLUX - SEA
2 stops47h 26mAir Canada
Sat 7/512:10 pmSEA - LUX
2 stops40h 40mAir Canada
Deal found 3/31$747
This British Airways deal was found by Cheapflights users on 3/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/229:20 pmLUX - SEA
2 stops35h 57mBritish Airways
Sat 7/51:35 pmSEA - LUX
1 stop22h 00mBritish Airways
Deal found 3/31$768
This United Airlines deal was found by Cheapflights users on 3/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/229:50 amLUX - SEA
1 stop16h 09mUnited Airlines
Sat 7/512:20 amSEA - LUX
2 stops34h 15mUnited Airlines
Deal found 3/31$825
This AranGrant deal was found by Cheapflights users on 3/30. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/296:20 pmLUX - SEA
1 stop31h 55mTurkish Airlines
Sun 6/87:10 pmSEA - LUX
1 stop29h 20mTurkish Airlines
Deal found 3/30$3,019
This FlightHub deal was found by Cheapflights users on 3/30. 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.
Thu 5/296:25 pmLUX - SEA
1 stop28h 25mScandinavian Airlines
Mon 6/94:00 pmSEA - LUX
1 stop21h 45mScandinavian Airlines
Deal found 3/30$3,078
This SWISS deal was found by Cheapflights users on 3/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3110:30 amLUX - SEA
2 stops41h 23mSWISS
Mon 6/91:45 pmSEA - LUX
2 stops34h 55mSWISS
Deal found 3/30$3,689

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 March 31, 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

Sun 6/22

11:00 am-11:40 am

1 stop33h 40m

Seattle/Tacoma Intl

Sun 7/6

1:30 pm-10:35 am

1 stop12h 05m

$712

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Fri 6/27

7:30 am-11:15 am

1 stop12h 45m

Seattle/Tacoma Intl

Sat 7/12

1:30 pm-1:50 pm

1 stop15h 20m

$718

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 6/22

9:20 pm-4:00 pm

2 stops27h 40m

Seattle/Tacoma Intl

Sun 7/6

5:40 pm-8:20 pm

2 stops17h 40m

$722

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/21

6:10 am-11:40 am

1 stop14h 30m

Seattle/Tacoma Intl

Sat 7/5

10:17 am-5:25 pm

2 stops22h 08m

$729

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/21

6:15 am-8:41 pm

2 stops47h 26m

Seattle/Tacoma Intl

Sat 7/5

12:10 pm-1:50 pm

2 stops40h 40m

$747

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 6/22

9:20 pm-12:17 am

2 stops35h 57m

Seattle/Tacoma Intl

Sat 7/5

1:35 pm-8:35 pm

1 stop22h 00m

$768

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 6/22

9:50 am-4:59 pm

1 stop16h 09m

Seattle/Tacoma Intl

Sat 7/5

12:20 am-7:35 pm

2 stops34h 15m

$825

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 5/29

6:20 pm-5:15 pm

1 stop31h 55m

Seattle/Tacoma Intl

Sun 6/8

7:10 pm-9:30 am

1 stop29h 20m

$3,019

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 5/29

6:25 pm-1:50 pm

1 stop28h 25m

Seattle/Tacoma Intl

Mon 6/9

4:00 pm-10:45 pm

1 stop21h 45m

$3,078

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 5/31

10:30 am-6:53 pm

2 stops41h 23m

Seattle/Tacoma Intl

Mon 6/9

1:45 pm-9:40 am

2 stops34h 55m

$3,689

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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.

Cheapflights Insights

Everything you need to know about your flight from Luxembourg to Seattle

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 March 31, 2025.
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,748 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    According to our current data, Air France ($718), American Airlines ($722), and Delta ($729) offers the cheapest pricing from Luxembourg to Seattle. You may be able to fly from Luxembourg to Seattle for 16% 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.

  • What is the cheapest month to book a flight from Luxembourg to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Luxembourg to Seattle (average of $238). Flying from Luxembourg to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Luxembourg?

Book flights to Luxembourg if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 4 airlines flying from Luxembourg to Seattle

Discover the top 4 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$591Average$691FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$698Average$886FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$711Average$781FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$711Average$1,150FlexibilityNo cancel feeOn-time76%
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