$336+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Jul 28 — Aug 41
Round-trip
1 adult, Economy
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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
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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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to LuxembourgExplore 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 June 28, 2026.
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 June 28, 2026.
This Justfly.com deal was found by Cheapflights users on 6/25. 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.
Fri 9/43:55 pm
SEA
- LUX
1 stop32h 55m
Scandinavian Airlines
Tue 9/2210:30 am
LUX
- SEA
1 stop12h 15m
Scandinavian Airlines
Deal found 6/25![Scandinavian Airlines logo]()
$668
This Gotogate deal was found by Cheapflights users on 6/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:45 am
SEA
- LUX
2 stops18h 10m
Multiple Airlines
Tue 8/256:05 am
LUX
- SEA
2 stops17h 17m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$676
This FlightHub deal was found by Cheapflights users on 6/26. 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.
Tue 8/186:50 pm
SEA
- LUX
1 stop12h 15m
Lufthansa
Wed 8/266:25 am
LUX
- SEA
2 stops25h 17m
Lufthansa
Deal found 6/26![Lufthansa logo]()
$685
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/186:50 pm
SEA
- LUX
1 stop12h 15m
United Airlines
Wed 8/268:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 6/24![United Airlines logo]()
$692
This Justfly.com deal was found by Cheapflights users on 6/25. 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.
Tue 10/67:20 pm
SEA
- LUX
2 stops35h 50m
Air Canada
Tue 10/279:30 am
LUX
- SEA
2 stops16h 52m
Air Canada
Deal found 6/25![Air Canada logo]()
$724
This Air France deal was found by Cheapflights users on 6/24. 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.
Sat 8/221:30 pm
SEA
- LUX
1 stop12h 05m
Multiple Airlines
Mon 8/312:35 pm
LUX
- SEA
1 stop30h 12m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$726
This KLM deal was found by Cheapflights users on 6/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:50 pm
SEA
- LUX
1 stop23h 35m
KLM
Mon 8/316:25 pm
LUX
- SEA
1 stop26h 22m
KLM
Deal found 6/27![KLM logo]()
$730
Best flights from Seattle to LuxembourgDiscover carefully curated flight deals from Seattle to Luxembourg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
Discover carefully curated flight deals from Seattle to Luxembourg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/186:50 pm
SEA
- LUX
1 stop12h 15m
United Airlines
Wed 8/268:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 6/24![United Airlines logo]()
$692
This KLM deal was found by Cheapflights users on 6/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:50 pm
SEA
- LUX
1 stop23h 35m
KLM
Mon 8/316:25 pm
LUX
- SEA
1 stop26h 22m
KLM
Deal found 6/27![KLM logo]()
$730
This United deal was found by Cheapflights users on 6/25. 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.
Fri 9/411:04 pm
SEA
- LUX
2 stops23h 41m
Multiple Airlines
Tue 9/228:30 am
LUX
- SEA
1 stop12h 25m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$745
This British Airways deal was found by Cheapflights users on 6/27. 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 10/191:30 pm
SEA
- LUX
1 stop12h 05m
British Airways
Wed 10/2111:35 am
LUX
- SEA
1 stop15h 50m
British Airways
Deal found 6/27![British Airways logo]()
$780
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:13 pm
SEA
- LUX
2 stops31h 57m
United Airlines
Tue 10/279:30 am
LUX
- SEA
3 stops43h 08m
United Airlines
Deal found 6/27![United Airlines logo]()
$749
This Air France deal was found by Cheapflights users on 6/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:30 pm
SEA
- LUX
1 stop12h 05m
Multiple Airlines
Tue 10/276:20 pm
LUX
- SEA
1 stop26h 27m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$750
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated June 28, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated June 28, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/24. 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.
Wed 7/83:40 pm
SEA
- LUX
3 stops33h 55m
Multiple Airlines
Sat 7/116:30 pm
LUX
- SEA
2 stops26h 15m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,178
This Gotogate deal was found by Cheapflights users on 6/24. 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.
Wed 7/87:15 pm
SEA
- LUX
1 stop29h 10m
Turkish Airlines
Sat 7/116:35 pm
LUX
- SEA
1 stop31h 45m
Turkish Airlines
Deal found 6/24![Turkish Airlines logo]()
$1,228
This Gotogate deal was found by Cheapflights users on 6/24. 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.
Wed 7/86:50 pm
SEA
- LUX
1 stop12h 15m
Lufthansa
Sat 7/119:40 am
LUX
- SEA
2 stops22h 02m
Lufthansa
Deal found 6/24![Lufthansa logo]()
$1,284
One-way flights from Seattle to LuxembourgSearch for one-way flight options from Seattle to Luxembourg. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
Search for one-way flight options from Seattle to Luxembourg. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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.
Thu 7/1611:25 pm
SEA
- LUX
3 stops47h 00m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 6/26. 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.
Fri 7/1711:25 pm
SEA
- LUX
2 stops57h 20m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$433
This Cheapflightsfares deal was found by Cheapflights users on 6/26. 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.
Thu 7/161:30 pm
SEA
- LUX
1 stop21h 55m
British Airways
Deal found 6/26![British Airways logo]()
$672
This KLM deal was found by Cheapflights users on 6/26. 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 7/171:45 pm
SEA
- LUX
1 stop23h 40m
KLM
Deal found 6/26![KLM logo]()
$704
Find 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 June 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $668 (Justfly.com) |
One-way from | $336 (Kiwi.com) |
Popular in | July |
Cheapest in | August |
Average price | $1,040 |
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 June 28, 2026.
Use the filters below to find and compare flights from Seattle to Luxembourg that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 8/18
6:50 pm-4:05 pm
1 stop12h 15m
Luxembourg
Wed 8/26
8:20 am-11:55 am
1 stop12h 35m
$692
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 8/22
1:50 pm-10:25 pm
1 stop23h 35m
Luxembourg
Mon 8/31
6:25 pm-11:47 am
1 stop26h 22m
$730
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Fri 9/4
11:04 pm-7:45 am
2 stops23h 41m
Luxembourg
Tue 9/22
8:30 am-11:55 am
1 stop12h 25m
$745
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 10/6
11:13 pm-4:10 pm
2 stops31h 57m
Luxembourg
Tue 10/27
9:30 am-8:38 pm
3 stops43h 08m
$749
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 10/6
1:30 pm-10:35 am
1 stop12h 05m
Luxembourg
Tue 10/27
6:20 pm-12:47 pm
1 stop26h 27m
$750
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Mon 10/19
1:30 pm-10:35 am
1 stop12h 05m
Luxembourg
Wed 10/21
11:35 am-6:25 pm
1 stop15h 50m
$780
Cheapest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Thu 7/16
11:25 pm-7:25 am
3 stops47h 00m
$336
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Fri 7/17
11:25 pm-9:10 pm
3 stops36h 45m
$446
Quickest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Thu 7/16
1:30 pm-8:25 pm
1 stop21h 55m
$672
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Fri 7/17
1:45 pm-10:25 pm
1 stop23h 40m
$704
Sorted by cheapest first
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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SEA-LUX
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
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 June 28, 2026.
Read through reviews of airlines operating flights from Seattle to Luxembourg, such as Air France,United Airlines, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Boarding
7.5
Comfort
7.4
Food
7.0
Overall
7.5
Crew
8.2
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Boarding
7.5
Comfort
7.4
Food
7.0
Overall
7.5
Crew
8.2
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Boarding
7.5
Comfort
7.4
Food
7.0
Overall
7.5
Crew
8.2
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Boarding
7.5
Comfort
7.4
Food
7.0
Overall
7.5
Crew
8.2
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Boarding
7.5
Comfort
7.4
Food
7.0
Overall
7.5
Crew
8.2
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
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.
Traveling to a place near Luxembourg?
Book flights to Luxembourg if you plan to visit one of these locationsEsch-sur-Alzette
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Complete your trip to Luxembourg by adding a car rental and/or hotel reservation to your travel itinerary.
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Other flights to Luxembourg
Explore flights to Luxembourg departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 28, 2026.
Seattle and Luxembourg flights
Browse other Seattle and Luxembourg flight options. Last updated on June 28, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Seattle to Luxembourg
Discover the top 4 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 June 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$396 | Average$476 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$449 | Average$506 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$471 | Average$592 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$490 | Average$723 | FlexibilityNo cancel fee | On-time76% |