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Luxembourg

$274+ Cheap flights from Seattle (SEA) to Luxembourg (LUX)

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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
1 adult, Economy
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Cheap flight deals from Seattle to Luxembourg

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Luxembourg (LUX). 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 16, 2025.

Most accurate provider

Gurufare
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$498
(British Airways)

One-way from

$274
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$708
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 ($314 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($56 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 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 April 16, 2025.

This British Airways deal was found by Cheapflights users on 4/15. 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.
Tue 10/78:20 pmSEA - LUX
1 stop15h 30mBritish Airways
Tue 11/410:15 amLUX - SEA
1 stop15h 40mBritish Airways
Deal found 4/15$498
This Air France deal was found by Cheapflights users on 4/16. 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 10/71:30 pmSEA - LUX
1 stop12h 05mAir France
Tue 11/47:30 amLUX - SEA
1 stop12h 50mAir France
Deal found 4/16$515
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Mon 5/51:30 pmSEA - LUX
1 stop22h 50mAmerican Airlines
Mon 5/199:05 pmLUX - SEA
1 stop23h 05mAmerican Airlines
Deal found 4/15$521
This Air France deal was found by Cheapflights users on 4/16. 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 10/71:30 pmSEA - LUX
1 stop12h 05mMultiple Airlines
Tue 11/46:10 amLUX - SEA
2 stops17h 49mMultiple Airlines
Deal found 4/16$526
This Air Canada deal was found by Cheapflights users on 4/16. 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 10/75:45 amSEA - LUX
2 stops22h 40mAir Canada
Tue 11/47:00 amLUX - SEA
2 stops36h 40mAir Canada
Deal found 4/16$535
This Delta deal was found by Cheapflights users on 4/15. 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 5/196:15 amSEA - LUX
2 stops22h 30mDelta
Wed 5/288:10 amLUX - SEA
2 stops17h 34mDelta
Deal found 4/15$594
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/57:00 amSEA - LUX
3 stops27h 35mUnited Airlines
Mon 5/199:50 amLUX - SEA
2 stops42h 02mUnited Airlines
Deal found 4/15$611
This KLM deal was found by Cheapflights users on 4/15. 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.
Fri 5/306:07 pmSEA - LUX
1 stop30h 53mKLM
Fri 6/66:10 amLUX - SEA
1 stop14h 30mKLM
Deal found 4/15$759
This Lufthansa deal was found by Cheapflights users on 4/16. 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 5/312:15 pmSEA - LUX
1 stop32h 25mLufthansa
Sat 6/76:15 amLUX - SEA
1 stop15h 10mLufthansa
Deal found 4/16$943

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 April 16, 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

Tue 10/7

8:20 pm-8:50 pm

1 stop15h 30m

Luxembourg

Tue 11/4

10:15 am-4:55 pm

1 stop15h 40m

$498

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/7

1:30 pm-10:35 am

1 stop12h 05m

Luxembourg

Tue 11/4

7:30 am-11:20 am

1 stop12h 50m

$515

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/5

1:30 pm-9:20 pm

1 stop22h 50m

Luxembourg

Mon 5/19

9:05 pm-11:10 am

1 stop23h 05m

$521

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/7

1:30 pm-10:35 am

1 stop12h 05m

Luxembourg

Tue 11/4

6:10 am-2:59 pm

2 stops17h 49m

$526

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/7

5:45 am-1:25 pm

2 stops22h 40m

Luxembourg

Tue 11/4

7:00 am-10:40 am

2 stops36h 40m

$535

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/19

6:15 am-1:45 pm

2 stops22h 30m

Luxembourg

Wed 5/28

8:10 am-4:44 pm

2 stops17h 34m

$594

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/5

7:00 am-7:35 pm

3 stops27h 35m

Luxembourg

Mon 5/19

9:50 am-10:42 pm

2 stops45h 52m

$611

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 5/30

6:07 pm-10:00 am

1 stop30h 53m

Luxembourg

Fri 6/6

6:10 am-11:40 am

1 stop14h 30m

$759

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 5/31

2:15 pm-7:40 am

1 stop32h 25m

Luxembourg

Sat 6/7

6:15 am-12:25 pm

1 stop15h 10m

$943

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 7/22

3:45 pm-8:25 pm

2 stops19h 40m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 17 results
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Compare providers for flights from Seattle to Luxembourg

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Luxembourg in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Luxembourg flights, users find the pricing of Gurufare to be most consistent on Cheapflights vs. Gurufare Users can find the same prices on Seattle-Luxembourg flight deals on Cheapflights vs. Gurufare >95% of the time. Price accuracy is based on data collected from Seattle-Luxembourg flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Luxembourg flights, Cheapflights users trust Gurufare the most. Gurufare has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Luxembourg flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $1,240). 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 LUX?

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 April 16, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 25% on flights from Seattle to Luxembourg by exploring options for tickets in the evening.

What is the cheapest day to fly from Seattle to Luxembourg?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Luxembourg. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Luxembourg flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 April 16, 2025.
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,326 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,665 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

    British Airways, at $498, was found to be the cheapest airline from Seattle to Luxembourg.Alternate airlines to your destination round-trip include Air France and American Airlines. British Airways is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $405. United Airlines flights start at $431 while deals on American Airlines start at $472 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 $1,240). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Luxembourg

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Luxembourg flights

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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$443Average$558FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$473Average$531FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$510Average$730FlexibilityNo cancel feeOn-time77%
DeltaCheapest$521Average$729FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$576Average$741FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$616Average$834FlexibilityNo cancel feeOn-time76%

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