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Luxembourg

$355+ Cheap flights from Seattle (SEA) to Luxembourg

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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Seattle to Luxembourg

Keep the following information in mind while searching for Seattle to Luxembourg flight deals. Data was last updated July 30, 2025.

Round-trip from

$435
(Ovago)

One-way from

$355
(Cheapflightsfares)

Popular in

June

Cheapest in

August

Average price

$908
From Seattle/Tacoma Intl to Luxembourg
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One-way flight from Seattle/Tacoma Intl to Luxembourg
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Highest demand for flights based on searches. 20% potential increase in price ($169 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Luxembourg

Cheapest flights from Seattle to Luxembourg
Explore the most affordable flight options available from Seattle to Luxembourg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Ovago deal was found by Cheapflights users on 7/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:50 pmSEA - LUX
1 stop17h 20mBritish Airways
Wed 12/39:55 pmLUX - SEA
1 stop28h 00mBritish Airways
Deal found 7/30$435
This Air France deal was found by Cheapflights users on 7/30. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:40 pmSEA - LUX
1 stop18h 05mAir France
Wed 8/207:30 amLUX - SEA
1 stop19h 05mAir France
Deal found 7/30$456
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/49:45 pmSEA - LUX
2 stops27h 15mDelta
Wed 8/2010:30 amLUX - SEA
1 stop34h 05mDelta
Deal found 7/30$476
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:53 amSEA - LUX
2 stops18h 07mMultiple Airlines
Wed 12/37:10 amLUX - SEA
2 stops21h 06mMultiple Airlines
Deal found 7/29$495
This KLM deal was found by Cheapflights users on 7/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:40 pmSEA - LUX
1 stop31h 20mKLM
Sat 9/206:05 amLUX - SEA
1 stop19h 00mKLM
Deal found 7/30$502
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:00 amSEA - LUX
3 stops23h 10mUnited Airlines
Sat 9/209:50 amLUX - SEA
2 stops59h 05mUnited Airlines
Deal found 7/30$751
This Air Canada deal was found by Cheapflights users on 7/29. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:55 pmSEA - LUX
2 stops16h 15mAir Canada
Sun 1/117:10 amLUX - SEA
3 stops21h 06mAir Canada
Deal found 7/29$858

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Luxembourg 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 July 30, 2025.
Use the filters below to find and compare flights from Seattle to Luxembourg that are best for you.

Fly from

Seattle

Fly to

Luxembourg

Route

Depart

Return

Price

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 11/19

6:50 pm-9:10 pm

1 stop17h 20m

Luxembourg

Wed 12/3

9:55 pm-4:55 pm

1 stop28h 00m

$435

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 8/13

1:30 pm-1:50 pm

1 stop15h 20m

Luxembourg

Fri 8/22

7:30 am-5:35 pm

1 stop19h 05m

$457

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 8/13

7:10 am-10:00 am

2 stops17h 50m

Luxembourg

Fri 8/22

6:05 am-11:35 am

1 stop14h 30m

$476

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 11/7

1:55 pm-10:00 pm

1 stop23h 05m

Luxembourg

Tue 11/18

6:05 am-2:45 pm

2 stops17h 40m

$482

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 9/13

5:40 pm-10:00 am

1 stop31h 20m

Luxembourg

Sat 9/20

6:05 am-4:05 pm

1 stop19h 00m

$502

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 11/7

12:41 pm-4:10 pm

3 stops42h 29m

Luxembourg

Tue 11/18

9:30 am-10:45 pm

2 stops22h 15m

$814

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 10/15

2:55 pm-4:10 pm

2 stops16h 15m

Luxembourg

Sun 1/11

7:10 am-7:16 pm

3 stops21h 06m

$858

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 11/24

6:50 pm-9:05 pm

1 stop17h 15m

$355

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 11/24

11:42 am-9:05 pm

2 stops24h 23m

$359

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 11/24

12:41 pm-4:10 pm

3 stops42h 29m

$420

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 results
1
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Best time to book a flight from Seattle to Luxembourg

Have a flexible travel schedule? Discover the best time to fly to Luxembourg from Seattle 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 Seattle to Luxembourg

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Luxembourg (average of $638). Flying from Seattle to Luxembourg in June is currently the most expensive (average of $1,173). 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.

What is the cheapest time of day to fly from SEA to LU?

Find hourly flight availability from Seattle to Luxembourg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Luxembourg as you normally would.

Reviews of airlines servicing Luxembourg

Get insights into the airlines that provide service to Luxembourg. 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 Luxembourg. Reviews last updated July 30, 2025.
Read through reviews of airlines operating flights from Seattle to Luxembourg, such as Delta, KLM, and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Seattle to Luxembourg. 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 from for flights from Seattle to Luxembourg?

    If you book a flight to Luxembourg from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • What are the cheapest airlines to fly from Seattle to Luxembourg one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $355. American Airlines flights start at $359 while deals on United Airlines start at $420 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Luxembourg 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 Seattle to Luxembourg?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Luxembourg (average of $638). Flying from Seattle to Luxembourg in June is currently the most expensive (average of $1,173). 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

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Top 6 airlines flying from Seattle to Luxembourg

Discover the top 6 airlines that operate flights from Seattle to Luxembourg. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$396Average$520FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$443Average$593FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$449Average$708FlexibilityNo cancel feeOn-time77%
DeltaCheapest$496Average$742FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$576Average$692FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$601Average$767FlexibilityNo cancel feeOn-time76%

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