$661+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Oct 10 — Oct 171
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
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
Cheapest
Best
Last-minute
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 10, 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 10, 2026.
This Air France deal was found by Cheapflights users on 9/9. 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.
Sun 11/83:25 pm -
1 stop13h 25m
Sun 11/157:30 am -
1 stop16h 44m
Deal found 9/9![Air France logo]()
$661
This Air France deal was found by Cheapflights users on 9/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:30 pm -
1 stop15h 20m
Fri 10/210:50 am -
1 stop15h 57m
Deal found 9/10![Air France logo]()
$698
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/217:00 am -
2 stops17h 30m
Wed 10/286:50 am -
1 stop14h 10m
Deal found 9/6![Multiple Airlines logo]()
$707
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:59 am -
2 stops19h 06m
Fri 10/26:00 am -
1 stop19h 35m
Deal found 9/10![Delta logo]()
$715
This Booking.com deal was found by Cheapflights users on 9/6. 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.
Wed 10/216:50 pm -
1 stop12h 15m
Wed 10/286:50 am -
1 stop14h 10m
Deal found 9/6![Lufthansa logo]()
$720
This FlightHub deal was found by Cheapflights users on 9/5. 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 10/146:50 pm -
1 stop15h 40m
Fri 10/309:15 am -
1 stop12h 45m
Deal found 9/5![Lufthansa logo]()
$727
This Booking.com deal was found by Cheapflights users on 9/6. 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.
Tue 10/63:00 pm -
2 stops37h 50m
Tue 10/138:30 am -
2 stops34h 35m
Deal found 9/6![Air Canada logo]()
$736
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 10, 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 10, 2026.
This Air France deal was found by Cheapflights users on 9/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:30 pm -
1 stop15h 20m
Fri 10/210:50 am -
1 stop15h 57m
Deal found 9/10![Air France logo]()
$698
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:59 am -
2 stops19h 06m
Fri 10/26:00 am -
1 stop19h 35m
Deal found 9/10![Delta logo]()
$715
This Gotogate deal was found by Cheapflights users on 9/6. 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 10/213:00 pm -
2 stops19h 30m
Wed 10/289:15 am -
2 stops19h 44m
Deal found 9/6![Multiple Airlines logo]()
$716
This Justfly.com deal was found by Cheapflights users on 9/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:00 pm -
2 stops37h 50m
Tue 10/275:10 pm -
1 stop28h 50m
Deal found 9/10![Lufthansa logo]()
$744
This British Airways deal was found by Cheapflights users on 9/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:20 pm -
1 stop14h 25m
Tue 10/2710:20 am -
1 stop15h 30m
Deal found 9/9![British Airways logo]()
$788
This Gotogate deal was found by Cheapflights users on 9/7. 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.
Thu 10/225:50 am -
2 stops25h 15m
Thu 10/296:50 am -
1 stop14h 10m
Deal found 9/7![Multiple Airlines logo]()
$764
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:56 pm -
2 stops35h 59m
Sat 10/312:25 pm -
1 stop30h 35m
Deal found 9/9![Lufthansa logo]()
$794
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated September 10, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 9/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:30 pm -
1 stop15h 20m
Fri 10/210:50 am -
1 stop15h 57m
Deal found 9/10![Air France logo]()
$698
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:59 am -
2 stops19h 06m
Fri 10/26:00 am -
1 stop19h 35m
Deal found 9/10![Delta logo]()
$715
This Booking.com deal was found by Cheapflights users on 9/6. 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.
Tue 10/63:00 pm -
2 stops37h 50m
Tue 10/138:30 am -
2 stops34h 35m
Deal found 9/6![Air Canada logo]()
$736
This Justfly.com deal was found by Cheapflights users on 9/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:00 pm -
2 stops37h 50m
Tue 10/277:10 pm -
2 stops36h 08m
Deal found 9/10![Multiple Airlines logo]()
$738
This FlightHub deal was found by Cheapflights users on 9/5. 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 10/146:50 pm -
1 stop15h 40m
Fri 10/309:15 am -
1 stop12h 45m
Deal found 9/5![Lufthansa logo]()
$727
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/217:00 am -
2 stops17h 30m
Wed 10/286:50 am -
1 stop14h 10m
Deal found 9/6![Multiple Airlines logo]()
$707
This Booking.com deal was found by Cheapflights users on 9/6. 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.
Wed 10/216:50 pm -
1 stop12h 15m
Wed 10/286:50 am -
1 stop14h 10m
Deal found 9/6![Lufthansa logo]()
$720
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $661 (Air France) |
One-way from | $396 (Justfly.com) |
Popular in | July |
Cheapest in | December |
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 10, 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
Thu 9/24
1:30 pm-1:50 pm
1 stop15h 20m
Luxembourg
Fri 10/2
10:50 am-5:47 pm
1 stop15h 57m
$698
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Thu 9/24
9:59 am-2:05 pm
2 stops19h 06m
Luxembourg
Fri 10/2
6:00 am-4:35 pm
1 stop19h 35m
$715
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Wed 10/21
3:00 pm-7:30 pm
2 stops19h 30m
Luxembourg
Wed 10/28
9:15 am-8:59 pm
2 stops19h 44m
$716
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Tue 10/6
3:00 pm-1:50 pm
2 stops37h 50m
Luxembourg
Tue 10/27
5:10 pm-2:00 pm
1 stop28h 50m
$744
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Thu 10/22
5:50 am-4:05 pm
2 stops25h 15m
Luxembourg
Thu 10/29
6:50 am-1:00 pm
1 stop14h 10m
$764
Quickest round-trip
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Tue 10/6
8:20 pm-7:45 pm
1 stop14h 25m
Luxembourg
Tue 10/27
10:20 am-5:50 pm
1 stop15h 30m
$788
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Sat 10/24
1:56 pm-10:55 am
2 stops35h 59m
Luxembourg
Sat 10/31
2:25 pm-1:00 pm
1 stop30h 35m
$794
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 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 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.
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 10, 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
Overall
7.5
Food
7.1
Comfort
7.4
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Overall
7.5
Food
7.1
Comfort
7.4
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Overall
7.5
Food
7.1
Comfort
7.4
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Entertainment
7.0
Overall
7.5
Food
7.1
Comfort
7.4
Crew
8.2
Boarding
7.5
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 10, 2026.
Seattle and Luxembourg flights
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Other flights from Seattle
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Popular flight searches
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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 10, 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% |