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$471+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$589
(Gotogate)

One-way from

$471
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$603
Provider with most accurate pricing for Seattle/Tacoma Intl-Luxembourg flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Luxembourg flights.
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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. 29% potential increase in price ($313 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($61 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 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 March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:30 pmSEA - LUX
1 stop12h 10mAmerican Airlines
Tue 11/45:15 pmLUX - SEA
1 stop32h 40mAmerican Airlines
Deal found 3/28$524
This Air Canada deal was found by Cheapflights users on 3/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:45 pmSEA - LUX
2 stops34h 55mAir Canada
Tue 11/42:25 pmLUX - SEA
2 stops29h 15mAir Canada
Deal found 3/28$531
This United deal was found by Cheapflights users on 3/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:32 pmSEA - LUX
3 stops28h 43mUnited Airlines
Tue 11/49:40 amLUX - SEA
2 stops36h 35mUnited Airlines
Deal found 3/28$554
This Gotogate deal was found by Cheapflights users on 3/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/125:35 amSEA - LUX
2 stops23h 05mMultiple Airlines
Mon 5/197:10 pmLUX - SEA
2 stops32h 23mMultiple Airlines
Deal found 3/28$589
This British Airways deal was found by Cheapflights users on 3/27. 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.
Mon 5/191:30 pmSEA - LUX
1 stop12h 10mBritish Airways
Wed 5/2811:40 amLUX - SEA
1 stop15h 40mBritish Airways
Deal found 3/27$596
This SWISS deal was found by Cheapflights users on 3/27. 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.
Mon 5/512:45 pmSEA - LUX
2 stops35h 55mSWISS
Mon 5/197:10 pmLUX - SEA
2 stops32h 23mSWISS
Deal found 3/27$607
This business-class.com deal was found by Cheapflights users on 3/27. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:50 pmSEA - LUX
1 stop15h 45mLufthansa
Wed 6/111:30 pmLUX - SEA
1 stop12h 29mLufthansa
Deal found 3/27$4,556

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 March 28, 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

Mon 5/12

5:35 am-1:40 pm

2 stops23h 05m

Luxembourg

Mon 5/19

7:10 pm-6:33 pm

2 stops32h 23m

$589

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/19

1:30 pm-10:40 am

1 stop12h 10m

Luxembourg

Wed 5/28

11:40 am-6:20 pm

1 stop15h 40m

$596

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/5

7:30 am-10:40 am

2 stops18h 10m

Luxembourg

Mon 5/19

9:05 pm-11:10 am

1 stop23h 05m

$599

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/5

12:45 pm-9:40 am

2 stops35h 55m

Luxembourg

Mon 5/19

7:10 pm-6:33 pm

2 stops32h 23m

$607

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 5/11

5:35 am-1:40 pm

2 stops23h 05m

Luxembourg

Sun 5/18

1:35 pm-10:13 pm

2 stops17h 38m

$666

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/12

2:40 pm-7:35 pm

2 stops19h 55m

Luxembourg

Mon 5/19

9:50 am-2:00 pm

3 stops37h 10m

$696

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 5/21

6:50 pm-7:35 pm

1 stop15h 45m

Luxembourg

Wed 6/11

1:30 pm-4:59 pm

1 stop12h 29m

$4,556

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 5/23

7:05 am-9:10 am

3 stops41h 05m

$471

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 6/22

6:50 pm-9:15 am

1 stop29h 25m

$609

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 6/22

5:35 am-1:40 pm

2 stops23h 05m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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 $1,242). 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 March 28, 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.

Rainfall in Luxembourg by month

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

In terms of precipitation, rainfall in Luxembourg ranges from 2.0 - 2.8 inches per month. November is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Luxembourg when rainfall is around 2.0 in.

Temperature in Luxembourg by month

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

If weather is an important factor for your trip to Luxembourg, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 March 28, 2025.
SWISS
7.5
Good
1,570 reviews

Crew

8.2

Boarding

7.6

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
SWISS
7.5
Good
1,570 reviews
SWISS
7.5
Good
1,570 reviews

Crew

8.2

Boarding

7.6

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
United Airlines
7.4
Good
8,603 reviews
SWISS
7.5
Good
1,570 reviews

Crew

8.2

Boarding

7.6

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
American Airlines
7.2
Good
10,000 reviews
SWISS
7.5
Good
1,570 reviews

Crew

8.2

Boarding

7.6

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
Air Canada
7.0
Good
8,986 reviews
SWISS
7.5
Good
1,570 reviews

Crew

8.2

Boarding

7.6

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
Lufthansa
6.7
Okay
6,956 reviews
SWISS
7.5
Good
1,570 reviews

Crew

8.2

Boarding

7.6

Overall

7.5

Food

7.0

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

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.

  • 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 $1,242). 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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Alternative routes for Seattle to Luxembourg

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$443Average$558FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$473Average$544FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$510Average$730FlexibilityNo cancel feeOn-time77%
DeltaCheapest$521Average$729FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$616Average$783FlexibilityNo cancel feeOn-time76%
KLMCheapest$632Average$741FlexibilityNo cancel feeOn-time75%
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