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Luxembourg

$331+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap 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 June 9, 2026.

This FlightHub deal was found by Cheapflights users on 6/8. 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.
Tue 8/186:50 pm
SEA
-
LUX
1 stop12h 15m
Lufthansa
Wed 8/266:25 am
LUX
-
SEA
2 stops16h 57m
Lufthansa
Deal found 6/8$687
This Air France deal was found by Cheapflights users on 6/8. 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.
Tue 8/181:30 pm
SEA
-
LUX
1 stop12h 05m
Multiple Airlines
Wed 8/2610:30 am
LUX
-
SEA
1 stop14h 57m
Multiple Airlines
Deal found 6/8$691
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Tue 8/186:50 pm
SEA
-
LUX
1 stop12h 15m
United Airlines
Wed 8/268:20 am
LUX
-
SEA
1 stop12h 35m
United Airlines
Deal found 6/4$693
This Air Canada deal was found by Cheapflights users on 6/8. 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.
Tue 8/1810:45 am
SEA
-
LUX
2 stops17h 50m
Air Canada
Wed 8/266:25 am
LUX
-
SEA
2 stops25h 17m
Air Canada
Deal found 6/8$695
This Air France deal was found by Cheapflights users on 6/8. 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 8/101:30 pm
SEA
-
LUX
1 stop15h 20m
Multiple Airlines
Mon 8/316:25 pm
LUX
-
SEA
1 stop26h 22m
Multiple Airlines
Deal found 6/8$716
This Air France deal was found by Cheapflights users on 6/5. 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.
Tue 7/281:30 pm
SEA
-
LUX
1 stop15h 20m
Multiple Airlines
Thu 8/136:05 pm
LUX
-
SEA
1 stop31h 22m
Multiple Airlines
Deal found 6/5$721
This Air France deal was found by Cheapflights users on 6/5. 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.
Wed 7/296:35 pm
SEA
-
LUX
1 stop34h 15m
Multiple Airlines
Wed 8/126:05 pm
LUX
-
SEA
1 stop31h 22m
Multiple Airlines
Deal found 6/5$723
This Air Canada deal was found by Cheapflights users on 6/8. 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.
Tue 10/67:20 pm
SEA
-
LUX
2 stops35h 50m
Air Canada
Tue 10/276:50 am
LUX
-
SEA
2 stops23h 07m
Air Canada
Deal found 6/8$724
This Air France deal was found by Cheapflights users on 6/5. 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.
Thu 7/301:30 pm
SEA
-
LUX
1 stop12h 05m
Multiple Airlines
Wed 8/126:05 pm
LUX
-
SEA
1 stop31h 22m
Multiple Airlines
Deal found 6/5$727
This United Airlines deal was found by Cheapflights users on 6/5. 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 7/2711:02 am
SEA
-
LUX
2 stops23h 28m
United Airlines
Thu 8/138:20 am
LUX
-
SEA
1 stop12h 35m
United Airlines
Deal found 6/5$729

Find flight deals from Seattle to Luxembourg

Keep the following information in mind while searching for Seattle to Luxembourg flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$687
(FlightHub)

One-way from

$331
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$1,040
Provider with most accurate pricing for Seattle/Tacoma Intl-Luxembourg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Luxembourg flights.
Search Deals
From Seattle/Tacoma Intl to Luxembourg
Search Deals
One-way flight from Seattle/Tacoma Intl to Luxembourg
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 9, 2026.
Use the filters below to find and compare flights from Seattle to Luxembourg that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 7/28

5:00 am-4:05 pm

2 stops26h 05m

Luxembourg

Fri 8/14

8:20 am-11:55 am

1 stop12h 35m

$729

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 10/16

3:00 pm-7:30 pm

2 stops19h 30m

Luxembourg

Tue 10/20

6:05 am-9:52 am

2 stops36h 47m

$730
Quickest round-trip

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 10/16

6:50 pm-7:30 pm

1 stop15h 40m

Luxembourg

Tue 10/20

8:30 am-12:20 pm

1 stop12h 50m

$730

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 7/27

2:33 pm-7:30 pm

2 stops19h 57m

Luxembourg

Fri 8/14

8:20 am-7:07 pm

2 stops19h 47m

$739

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/6

11:13 pm-7:30 pm

2 stops35h 17m

Luxembourg

Tue 10/27

9:30 am-11:21 pm

3 stops21h 51m

$740
Cheapest one-way

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 9/17

7:00 pm-5:30 pm

3 stops37h 30m

$331

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 9/16

7:00 pm-5:05 pm

2 stops37h 05m

$359
Quickest one-way

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 9/16

1:50 pm-10:25 pm

1 stop23h 35m

$373

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 9/17

5:45 pm-9:55 am

1 stop31h 10m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Sorted by cheapest first

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, August is the cheapest month in which you can book a flight from Seattle to Luxembourg (average of $272). Flying from Seattle to Luxembourg in June is currently the most expensive (average of $840). 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.

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 June 9, 2026.
Read through reviews of airlines operating flights from Seattle to Luxembourg, such as Air France,United Airlines, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,598 reviews

Overall

7.4

Boarding

7.5

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
Air France
7.4
Good
1,598 reviews
Air France
7.4
Good
1,598 reviews

Overall

7.4

Boarding

7.5

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
United Airlines
7.4
Good
9,785 reviews
Air France
7.4
Good
1,598 reviews

Overall

7.4

Boarding

7.5

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
Lufthansa
6.8
Okay
8,048 reviews
Air France
7.4
Good
1,598 reviews

Overall

7.4

Boarding

7.5

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
British Airways
6.7
Okay
8,031 reviews
Air France
7.4
Good
1,598 reviews

Overall

7.4

Boarding

7.5

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great 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.

  • How long is the flight from Seattle to Luxembourg?

    For as low as $730, United Airlines can have you in Luxembourg from Seattle in 19h 30m. Seattle and Luxembourg are separated by a distance of 5057 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $74. Southwest flights start at $84 while deals on Delta start at $88 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, August is the cheapest month in which you can book a flight from Seattle to Luxembourg (average of $272). Flying from Seattle to Luxembourg in June is currently the most expensive (average of $840). 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 4 airlines flying from Seattle to Luxembourg

Discover the top 4 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$396Average$476FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$449Average$506FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$471Average$592FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$490Average$723FlexibilityNo cancel feeOn-time76%

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