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$620+ Cheap flights from Luxembourg (LUX) to Seattle (SEA)

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
LUX — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Round-trip from

$712
(KLM)

One-way from

$620
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$751
From Luxembourg to Seattle/Tacoma Intl
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One-way flight from Luxembourg to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($148 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 April 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 April 29, 2025.

This KLM deal was found by Cheapflights users on 4/28. 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 6/226:05 amLUX - SEA
1 stop14h 35mMultiple Airlines
Sun 7/61:30 pmSEA - LUX
1 stop12h 05mMultiple Airlines
Deal found 4/28$712
This Delta deal was found by Cheapflights users on 4/28. 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 6/226:05 amLUX - SEA
1 stop14h 35mDelta
Sat 7/57:20 amSEA - LUX
2 stops17h 40mDelta
Deal found 4/28$718
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:15 amLUX - SEA
1 stop15h 10mLufthansa
Sat 7/510:00 amSEA - LUX
2 stops15h 10mLufthansa
Deal found 4/28$768
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 6/218:25 amLUX - SEA
3 stops21h 46mUnited Airlines
Sat 7/511:20 pmSEA - LUX
2 stops35h 15mUnited Airlines
Deal found 4/28$877
This British Airways deal was found by Cheapflights users on 4/28. 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 5/119:20 pmLUX - SEA
1 stop23h 15mBritish Airways
Thu 5/152:20 pmSEA - LUX
2 stops21h 10mBritish Airways
Deal found 4/28$1,180
This SmartFares deal was found by Cheapflights users on 4/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/166:20 pmLUX - SEA
1 stop25h 15mTurkish Airlines
Wed 7/237:10 pmSEA - LUX
1 stop29h 20mTurkish Airlines
Deal found 4/28$3,167
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/166:10 amLUX - SEA
2 stops16h 40mScandinavian Airlines
Wed 7/234:00 pmSEA - LUX
2 stops37h 55mScandinavian Airlines
Deal found 4/28$3,507

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 April 29, 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

6:05 am-11:40 am

1 stop14h 35m

Seattle/Tacoma Intl

Sat 7/5

1:30 pm-10:35 am

1 stop12h 05m

$712

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 6/22

6:05 am-11:40 am

1 stop14h 35m

Seattle/Tacoma Intl

Sat 7/5

7:20 am-10:00 am

2 stops17h 40m

$718

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/21

6:15 am-12:25 pm

1 stop15h 10m

Seattle/Tacoma Intl

Sat 7/5

10:00 am-10:10 am

2 stops15h 10m

$768

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/21

8:25 am-9:11 pm

3 stops21h 46m

Seattle/Tacoma Intl

Sat 7/5

11:20 pm-7:35 pm

2 stops35h 15m

$877

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 5/11

9:20 pm-11:35 am

1 stop23h 15m

Seattle/Tacoma Intl

Thu 5/15

2:20 pm-8:30 pm

2 stops21h 10m

$1,180

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 6/19

11:40 am-10:55 pm

2 stops20h 15m

Seattle/Tacoma Intl

Sun 8/31

8:20 pm-10:40 am

1 stop29h 20m

$2,465

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Wed 7/16

6:20 pm-10:35 am

1 stop25h 15m

Seattle/Tacoma Intl

Wed 7/23

7:10 pm-9:30 am

1 stop29h 20m

$3,167

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Wed 7/16

6:10 am-1:50 pm

2 stops16h 40m

Seattle/Tacoma Intl

Wed 7/23

4:00 pm-2:55 pm

2 stops37h 55m

$3,507

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Fri 8/1

2:15 pm-6:38 pm

3 stops37h 23m

$620

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Fri 8/1

9:15 pm-11:35 am

1 stop23h 20m

$889

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April 29, 2025.
Read through reviews of airlines operating flights from Luxembourg to Seattle, such as Delta, United Airlines and Turkish Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

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
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

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
3,785 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

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
Scandinavian Airlines
7.3
Good
1,345 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

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
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

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, Delta ($718), Lufthansa ($768), and United Airlines ($877) 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 $405). 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
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Aberdeen
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$591Average$691FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$698Average$1,058FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$711Average$761FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$711Average$1,150FlexibilityNo cancel feeOn-time76%

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