$269+ Cheap flights from Seattle (SEA) to Luxembourg (LUX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Oct 23 — Oct 301
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
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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 September 23, 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 September 23, 2026.
This Air France deal was found by Cheapflights users on 9/19. 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.
Wed 10/284:20 pm -
1 stop13h 30m
Wed 11/410:50 am -
1 stop13h 24m
Deal found 9/19![Air France logo]()
$580
This Air France deal was found by Cheapflights users on 9/19. 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 11/244:05 pm -
1 stop12h 45m
Tue 12/86:05 am -
2 stops17h 39m
Deal found 9/19![Multiple Airlines logo]()
$590
This Delta deal was found by Cheapflights users on 9/19. 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 11/247:15 am -
2 stops18h 10m
Tue 12/86:05 am -
2 stops21h 47m
Deal found 9/19![Delta logo]()
$607
This Gotogate deal was found by Cheapflights users on 9/22. 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 10/287:45 am -
2 stops18h 10m
Wed 11/410:45 am -
2 stops19h 14m
Deal found 9/22![Multiple Airlines logo]()
$701
This FlightHub deal was found by Cheapflights users on 9/21. 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.
Wed 11/252:50 pm -
1 stop16h 40m
Mon 11/307:10 pm -
2 stops37h 34m
Deal found 9/21![Multiple Airlines logo]()
$729
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Sun 11/12:35 pm -
3 stops34h 15m
Sun 11/88:00 pm -
2 stops30h 00m
Deal found 9/18![Multiple Airlines logo]()
$731
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 September 23, 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 September 23, 2026.
This Air France deal was found by Cheapflights users on 9/20. 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.
Wed 10/284:20 pm -
1 stop13h 30m
Wed 11/410:50 am -
1 stop13h 24m
Deal found 9/20![Air France logo]()
$580
This United deal was found by Cheapflights users on 9/19. 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.
Tue 11/245:05 am -
2 stops23h 40m
Tue 12/86:50 am -
3 stops23h 11m
Deal found 9/19![Multiple Airlines logo]()
$722
This Booking.com deal was found by Cheapflights users on 9/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:50 pm -
1 stop16h 40m
Sun 11/86:50 am -
1 stop14h 10m
Deal found 9/18![Lufthansa logo]()
$739
This Justfly.com deal was found by Cheapflights users on 9/22. 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 10/63:14 pm -
2 stops34h 31m
Tue 10/279:55 pm -
2 stops34h 41m
Deal found 9/22![British Airways logo]()
$785
This British Airways deal was found by Cheapflights users on 9/21. 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.
Thu 11/266:45 pm -
1 stop30h 50m
Mon 11/305:15 pm -
1 stop32h 35m
Deal found 9/21![British Airways logo]()
$793
This Lufthansa deal was found by Cheapflights users on 9/21. 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.
Tue 11/248:09 am -
2 stops16h 46m
Mon 11/306:50 am -
1 stop14h 10m
Deal found 9/21![Lufthansa logo]()
$803
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated September 23, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 9/19. 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 10/63:14 pm -
2 stops34h 31m
Tue 10/279:55 pm -
2 stops34h 41m
Deal found 9/19![British Airways logo]()
$785
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 10/71:30 pm -
1 stop12h 15m
Wed 10/149:35 pm -
1 stop23h 00m
Deal found 9/19![British Airways logo]()
$755
This Air France deal was found by Cheapflights users on 9/19. 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.
Wed 10/284:20 pm -
1 stop13h 30m
Wed 11/410:50 am -
1 stop13h 24m
Deal found 9/19![Air France logo]()
$580
This Gotogate deal was found by Cheapflights users on 9/22. 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 10/287:45 am -
2 stops18h 10m
Wed 11/410:45 am -
2 stops19h 14m
Deal found 9/22![Multiple Airlines logo]()
$701
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 September 23, 2026.
Search for one-way flight options from Seattle to Luxembourg. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Sun 10/113:55 pm -
3 stops38h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Tue 9/293:55 pm -
2 stops32h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/147:00 pm -
3 stops31h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Mon 10/123:40 pm -
3 stops32h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Tue 11/172:35 pm -
3 stops45h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Mon 9/283:40 pm -
3 stops34h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$340
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 September 23, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $580 (Air France) |
One-way from | $269 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $733 |
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 7,457,451 searches. Data last updated September 23, 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
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Sun 10/11
3:55 pm-3:35 pm
3 stops38h 40m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$269
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Wed 10/14
7:00 pm-11:30 am
3 stops31h 30m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$304
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Mon 10/12
3:40 pm-10:45 pm
2 stops22h 05m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$323
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Mon 11/16
2:35 pm-4:05 pm
3 stops40h 30m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$334
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Mon 9/28
3:40 pm-10:40 am
3 stops34h 00m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$340
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Tue 11/3
6:45 pm-9:05 pm
1 stop17h 20m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$456
Quickest round-trip
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Sun 11/8
6:45 pm-4:25 pm
1 stop12h 40m
Luxembourg
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$456
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Wed 10/28
4:20 pm-1:50 pm
1 stop13h 30m
Luxembourg
Wed 11/4
10:50 am-3:14 pm
1 stop13h 24m
$580
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Tue 11/24
5:05 am-1:45 pm
2 stops23h 40m
Luxembourg
Tue 12/8
6:50 am-9:01 pm
3 stops23h 11m
$722
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Sun 11/1
2:50 pm-4:30 pm
1 stop16h 40m
Luxembourg
Sun 11/8
6:50 am-12:00 pm
1 stop14h 10m
$739
Showing 1-10 of 13 resultsSorted 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 September.
| 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Luxembourg flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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.
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 September 23, 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.
Comfort
7.4
Overall
7.5
Boarding
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Overall
7.5
Boarding
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Overall
7.5
Boarding
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Overall
7.5
Boarding
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
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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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 September 23, 2026.
Seattle and Luxembourg flights
Browse other Seattle and Luxembourg flight options. Last updated on September 23, 2026.
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Seattle to Luxembourg
Discover the top 3 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$840 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$471 | Average$592 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$490 | Average$723 | FlexibilityNo cancel fee | On-time76% |