HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luxembourg

$503+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
mar. 15 — mar. 221
sáb. 3/15
sáb. 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Luxembourg with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 marzo 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$546
(British Airways)

One-way from

$503
(Gotogate)

Popular in

June

Cheapest in

November

Average price

$603
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. 31% potential increase in price ($342 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 marzo 10, 2025.

This American Airlines deal was found by Cheapflights users on 3/10. 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.
mié. 9/241:30 pmSEA - LUX
1 stop12h 15mAmerican Airlines
jue. 10/99:05 pmLUX - SEA
1 stop23h 30mAmerican Airlines
Deal found 3/10$544
This British Airways deal was found by Cheapflights users on 3/10. 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.
mié. 4/98:20 pmSEA - LUX
1 stop15h 00mBritish Airways
mié. 4/1611:40 amLUX - SEA
1 stop15h 40mBritish Airways
Deal found 3/10$546
This Air France deal was found by Cheapflights users on 3/9. 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.
mié. 4/91:30 pmSEA - LUX
1 stop15h 20mAir France
mié. 4/167:30 amLUX - SEA
1 stop19h 10mAir France
Deal found 3/9$562
This Delta deal was found by Cheapflights users on 3/9. 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.
mié. 4/232:10 pmSEA - LUX
1 stop14h 35mDelta
mié. 4/3010:30 amLUX - SEA
1 stop14h 30mDelta
Deal found 3/9$575
This Gotogate deal was found by Cheapflights users on 3/9. 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.
mié. 4/233:24 pmSEA - LUX
2 stops17h 56mSWISS
mié. 4/3010:30 amLUX - SEA
2 stops19h 45mSWISS
Deal found 3/9$594
This Air Canada deal was found by Cheapflights users on 3/10. 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.
mar. 9/235:45 amSEA - LUX
2 stops22h 40mAir Canada
dom. 10/126:15 amLUX - SEA
2 stops39h 50mAir Canada
Deal found 3/10$595
This Lufthansa deal was found by Cheapflights users on 3/10. 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.
sáb. 9/272:20 pmSEA - LUX
1 stop18h 45mLufthansa
mar. 10/76:15 amLUX - SEA
2 stops17h 01mLufthansa
Deal found 3/10$600
This United Airlines deal was found by Cheapflights users on 3/10. 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.
dom. 9/2110:50 pmSEA - LUX
2 stops25h 25mUnited Airlines
mié. 10/89:45 amLUX - SEA
1 stop16h 14mUnited Airlines
Deal found 3/10$614
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/227:00 pmSEA - LUX
3 stops18h 45mMultiple Airlines
mar. 4/298:10 pmLUX - SEA
3 stops33h 18mMultiple Airlines
Deal found 3/9$841
This Justfly.com deal was found by Cheapflights users on 3/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/187:10 pmSEA - LUX
1 stop37h 15mTurkish Airlines
vie. 5/236:20 pmLUX - SEA
1 stop31h 55mTurkish Airlines
Deal found 3/9$1,276
This Ovago deal was found by Cheapflights users on 3/10. 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.
jue. 9/257:12 amSEA - LUX
2 stops26h 33mTAP AIR PORTUGAL
mar. 10/75:45 pmLUX - SEA
2 stops37h 35mTAP AIR PORTUGAL
Deal found 3/10$1,991

Find flights from Seattle to Luxembourg within your budget

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 marzo 10, 2025.

Fly from

Seattle

Fly to

Luxembourg

Route

Depart

Return

Price

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/9

8:20 pm-8:20 pm

1 stop15h 00m

Luxembourg

mié. 4/16

11:40 am-6:20 pm

1 stop15h 40m

$546

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/9

6:58 am-10:45 am

2 stops18h 47m

Luxembourg

mié. 4/16

9:35 pm-6:20 pm

1 stop29h 45m

$549

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/9

1:30 pm-1:50 pm

1 stop15h 20m

Luxembourg

mié. 4/16

7:30 am-5:40 pm

1 stop19h 10m

$562

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/23

2:10 pm-1:45 pm

1 stop14h 35m

Luxembourg

mié. 4/30

10:30 am-4:00 pm

1 stop14h 30m

$575

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/23

3:24 pm-6:20 pm

2 stops17h 56m

Luxembourg

mié. 4/30

10:30 am-9:15 pm

2 stops19h 45m

$594

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/23

6:00 am-9:40 am

2 stops42h 40m

Luxembourg

mié. 4/30

1:30 pm-7:37 pm

2 stops39h 07m

$602

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mié. 4/9

7:08 am-7:35 pm

3 stops27h 27m

Luxembourg

mié. 4/16

9:45 am-12:58 am

3 stops24h 13m

$624

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

dom. 5/18

6:50 pm-4:10 pm

1 stop12h 20m

Luxembourg

vie. 5/23

2:30 pm-4:59 pm

2 stops59h 29m

$732

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

mar. 4/22

7:00 pm-10:45 pm

3 stops18h 45m

Luxembourg

mar. 4/29

8:10 pm-8:28 pm

3 stops33h 18m

$841

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

dom. 5/18

7:10 pm-5:25 pm

1 stop37h 15m

Luxembourg

vie. 5/23

6:20 pm-5:15 pm

1 stop31h 55m

$1,276

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 13 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Luxembourg flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Seattle to Luxembourg

Get recent, data-driven insights about flights from Seattle to Luxembourg including ideal travel times, pricing trends, and more.

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 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 marzo 10, 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 marzo 10, 2025.
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

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
1,567 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

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
1,427 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

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
8,631 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

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
3,765 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

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 $546, was found to be the cheapest airline from Seattle to Luxembourg.Alternate airlines to your destination round-trip include American Airlines and Air France. British Airways is 27% 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 Air Canada, which is currently one of the cheapest options available, starting at $503. Lufthansa flights start at $524 while deals on United Airlines start at $542 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 $1,242). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 marzo 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$443Average$558FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$473Average$571FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$510Average$730FlexibilityNo cancel feeOn-time77%
DeltaCheapest$521Average$741FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$613Average$692FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$625Average$778FlexibilityNo cancel feeOn-time76%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.