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Luxembourg

$386+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

Gurufare
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$527
(American Airlines)

One-way from

$464
(Cheapflightsfares)

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. 25% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($53 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 30, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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 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 stop22h 20mAmerican Airlines
Tue 11/410:15 amLUX - SEA
1 stop15h 40mAmerican Airlines
Deal found 4/29$527
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Tue 10/71:45 pmSEA - LUX
2 stops14h 40mAir Canada
Tue 11/42:25 pmLUX - SEA
2 stops40h 31mAir Canada
Deal found 4/29$535
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.
Mon 5/192:10 pmSEA - LUX
1 stop18h 45mDelta
Wed 5/286:10 amLUX - SEA
1 stop14h 30mDelta
Deal found 4/28$579
This Travelocity deal was found by Cheapflights users on 4/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/41:30 pmSEA - LUX
1 stop12h 15mBritish Airways
Wed 6/119:35 pmLUX - SEA
1 stop23h 00mBritish Airways
Deal found 4/27$632
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:54 pmSEA - LUX
2 stops24h 21mUnited Airlines
Mon 9/19:50 amLUX - SEA
2 stops58h 41mUnited Airlines
Deal found 4/29$657
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:00 amSEA - LUX
2 stops21h 50mMultiple Airlines
Mon 9/110:30 amLUX - SEA
1 stop13h 25mMultiple Airlines
Deal found 4/29$740
This Yatra.com 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 Yatra.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/117:20 amSEA - LUX
2 stops21h 30mAir France
Wed 6/1810:30 amLUX - SEA
2 stops22h 23mAir France
Deal found 4/28$755
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:50 pmSEA - LUX
1 stop15h 45mLufthansa
Wed 6/188:15 amLUX - SEA
2 stops15h 01mLufthansa
Deal found 4/29$808
This SWISS deal was found by Cheapflights users on 4/27. 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.
Sat 7/124:20 pmSEA - LUX
1 stop32h 20mSWISS
Fri 7/257:10 pmLUX - SEA
1 stop28h 40mSWISS
Deal found 4/27$828
This AranGrant deal was found by Cheapflights users on 4/29. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:10 pmSEA - LUX
1 stop37h 15mTurkish Airlines
Wed 6/116:20 pmLUX - SEA
1 stop25h 15mTurkish Airlines
Deal found 4/29$4,902
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 5/214:00 pmSEA - LUX
1 stop21h 55mScandinavian Airlines
Wed 6/116:10 amLUX - SEA
2 stops16h 40mScandinavian Airlines
Deal found 4/28$5,558

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 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

Tue 10/7

1:30 pm-8:50 pm

1 stop22h 20m

Luxembourg

Tue 11/4

10:15 am-4:55 pm

1 stop15h 40m

$527

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/7

1:45 pm-1:25 pm

2 stops14h 40m

Luxembourg

Tue 11/4

2:25 pm-9:56 pm

2 stops40h 31m

$535

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/19

2:10 pm-5:55 pm

1 stop18h 45m

Luxembourg

Wed 5/28

6:10 am-11:40 am

1 stop14h 30m

$579

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 6/4

1:30 pm-10:45 am

1 stop12h 15m

Luxembourg

Wed 6/11

9:35 pm-11:35 am

1 stop23h 00m

$632

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 8/22

11:54 pm-9:15 am

2 stops24h 21m

Luxembourg

Mon 9/1

9:50 am-11:31 am

2 stops58h 41m

$657

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 8/22

7:00 am-1:50 pm

2 stops21h 50m

Luxembourg

Mon 9/1

10:30 am-2:55 pm

1 stop13h 25m

$740

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 6/11

7:20 am-1:50 pm

2 stops21h 30m

Luxembourg

Wed 6/18

10:30 am-11:53 pm

2 stops22h 23m

$755

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 6/11

6:50 pm-7:35 pm

1 stop15h 45m

Luxembourg

Wed 6/18

8:15 am-2:16 pm

2 stops15h 01m

$808

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 7/12

4:20 pm-9:40 am

1 stop32h 20m

Luxembourg

Fri 7/25

7:10 pm-2:50 pm

1 stop28h 40m

$828

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 5/21

7:10 pm-5:25 pm

1 stop37h 15m

Luxembourg

Wed 6/11

6:20 pm-10:35 am

1 stop25h 15m

$4,902

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 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 $1,178). 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 April 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.

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 30, 2025.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
1,588 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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.
Turkish Airlines
7.3
Good
3,788 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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 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 $464. Air France flights start at $483 while deals on United Airlines start at $491 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 $1,178). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Seattle to Luxembourg

Discover the top 5 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$443Average$524FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$510Average$749FlexibilityNo cancel feeOn-time77%
DeltaCheapest$521Average$692FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$576Average$741FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$616Average$834FlexibilityNo cancel feeOn-time76%

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