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Luxembourg

$478+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 17, 2025.

Most accurate provider

Gurufare
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$515
(Air France)

One-way from

$478
(Gurufare)

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 17, 2025.

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 4/17. 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 4/17$526
This Air Canada deal was found by Cheapflights users on 4/17. 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 10/710:00 amSEA - LUX
2 stops18h 25mAir Canada
Tue 11/42:25 pmLUX - SEA
2 stops29h 15mAir Canada
Deal found 4/17$535
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.
Mon 5/191:30 pmSEA - LUX
1 stop12h 10mBritish Airways
Wed 5/289:35 pmLUX - SEA
1 stop23h 00mBritish Airways
Deal found 4/15$548
This SWISS deal was found by Cheapflights users on 4/17. 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 8/254:25 pmSEA - LUX
1 stop32h 15mSWISS
Wed 9/37:10 pmLUX - SEA
2 stops32h 26mSWISS
Deal found 4/17$571
This Lufthansa deal was found by Cheapflights users on 4/17. 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.
Sun 8/246:50 pmSEA - LUX
1 stop12h 20mLufthansa
Wed 9/31:30 pmLUX - SEA
1 stop12h 29mLufthansa
Deal found 4/17$577
This United Airlines deal was found by Cheapflights users on 4/17. 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 8/198:52 amSEA - LUX
2 stops25h 43mUnited Airlines
Wed 9/39:45 amLUX - SEA
1 stop16h 14mUnited Airlines
Deal found 4/17$581
This Delta deal was found by Cheapflights users on 4/17. 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.
Tue 8/197:20 amSEA - LUX
2 stops24h 55mDelta
Fri 8/296:05 amLUX - SEA
1 stop18h 50mDelta
Deal found 4/17$584
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/195:30 amSEA - LUX
2 stops25h 40mMultiple Airlines
Wed 5/281:30 pmLUX - SEA
1 stop12h 29mMultiple Airlines
Deal found 4/16$612
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/244:00 pmSEA - LUX
1 stop21h 45mScandinavian Airlines
Sun 8/318:45 amLUX - SEA
2 stops38h 05mScandinavian Airlines
Deal found 4/16$770
This Turkish Airlines deal was found by Cheapflights users on 4/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:10 pmSEA - LUX
1 stop29h 20mTurkish Airlines
Sat 8/306:20 pmLUX - SEA
1 stop31h 55mTurkish Airlines
Deal found 4/17$957
This Ovago deal was found by Cheapflights users on 4/17. 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.
Fri 8/229:50 pmSEA - LUX
2 stops28h 40mTAP AIR PORTUGAL
Sun 8/3112:25 pmLUX - SEA
2 stops42h 31mTAP AIR PORTUGAL
Deal found 4/17$2,400

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 17, 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-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

Tue 10/7

1:30 pm-10:40 am

1 stop12h 10m

Luxembourg

Tue 11/4

5:15 pm-4:55 pm

1 stop32h 40m

$526

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/7

10:00 am-1:25 pm

2 stops18h 25m

Luxembourg

Tue 11/4

2:25 pm-10:40 am

2 stops29h 15m

$535

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/19

1:30 pm-10:40 am

1 stop12h 10m

Luxembourg

Wed 5/28

9:35 pm-11:35 am

1 stop23h 00m

$548

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/25

4:25 pm-9:40 am

1 stop32h 15m

Luxembourg

Wed 9/3

7:10 pm-6:36 pm

2 stops32h 26m

$571

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 8/24

6:50 pm-4:10 pm

1 stop12h 20m

Luxembourg

Wed 9/3

1:30 pm-4:59 pm

1 stop12h 29m

$577

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/19

8:52 am-7:35 pm

2 stops25h 43m

Luxembourg

Wed 9/3

9:45 am-4:59 pm

1 stop16h 14m

$581

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/19

7:20 am-5:15 pm

2 stops24h 55m

Luxembourg

Fri 8/29

6:05 am-3:55 pm

1 stop18h 50m

$584

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 5/19

5:30 am-4:10 pm

2 stops25h 40m

Luxembourg

Wed 5/28

1:30 pm-4:59 pm

1 stop12h 29m

$612

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 8/24

4:00 pm-10:45 pm

1 stop21h 45m

Luxembourg

Sun 8/31

8:45 am-1:50 pm

2 stops38h 05m

$770

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 18 results
1
2

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 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 17, 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 17, 2025.
Delta
8.0
Very good
7,916 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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
3,769 reviews
Delta
8.0
Very good
7,916 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

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 $478. Air France flights start at $482 while deals on SWISS start at $484 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

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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 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 17, 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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