$238+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Sep 1 — Sep 81
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
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 August 2, 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 August 2, 2026.
This Gotogate deal was found by Cheapflights users on 7/31. 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.
Sun 9/138:00 am
SEA
- LUX
2 stops40h 30m
Multiple Airlines
Mon 9/288:55 pm
LUX
- SEA
2 stops30h 37m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$712
This Air Canada deal was found by Cheapflights users on 7/30. 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 10/67:20 pm
SEA
- LUX
2 stops35h 45m
Air Canada
Tue 10/276:50 am
LUX
- SEA
2 stops22h 09m
Air Canada
Deal found 7/30![Air Canada logo]()
$731
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 9/108:10 am
SEA
- LUX
2 stops22h 55m
United Airlines
Wed 9/308:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 8/1![United Airlines logo]()
$734
This KAYAK deal was found by Cheapflights users on 7/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:20 pm
SEA
- LUX
2 stops39h 10m
Lufthansa
Tue 10/275:10 pm
LUX
- SEA
1 stop28h 50m
Lufthansa
Deal found 7/29![Lufthansa logo]()
$739
This Mytrip deal was found by Cheapflights users on 7/30. 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 8/192:10 pm
SEA
- LUX
3 stops34h 40m
Multiple Airlines
Tue 8/254:45 pm
LUX
- SEA
3 stops28h 10m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$743
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 August 2, 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 August 2, 2026.
This Gotogate deal was found by Cheapflights users on 7/31. 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.
Sun 9/138:00 am
SEA
- LUX
2 stops40h 30m
Multiple Airlines
Mon 9/288:55 pm
LUX
- SEA
2 stops30h 37m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 9/108:10 am
SEA
- LUX
2 stops26h 20m
United Airlines
Wed 9/308:20 am
LUX
- SEA
2 stops24h 06m
United Airlines
Deal found 8/1![United Airlines logo]()
$744
This Gotogate deal was found by Cheapflights users on 8/2. 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.
Sat 8/226:50 pm
SEA
- LUX
1 stop15h 40m
Lufthansa
Mon 8/318:25 am
LUX
- SEA
1 stop12h 30m
Lufthansa
Deal found 8/2![Lufthansa logo]()
$886
This United Airlines deal was found by Cheapflights users on 7/31. 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
3 stops24h 06m
United Airlines
Deal found 7/31![United Airlines logo]()
$897
This United deal was found by Cheapflights users on 7/31. 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.
Wed 8/196:50 pm
SEA
- LUX
1 stop12h 15m
Multiple Airlines
Mon 8/244:50 pm
LUX
- SEA
1 stop33h 09m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$899
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 8/2211:59 pm
SEA
- LUX
2 stops34h 31m
United Airlines
Sat 9/58:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 7/30![United Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 8/2. 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.
Sat 8/223:40 pm
SEA
- LUX
3 stops33h 10m
Multiple Airlines
Mon 8/3111:15 am
LUX
- SEA
2 stops33h 30m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$923
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated August 2, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 7/30. 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 8/192:10 pm
SEA
- LUX
3 stops34h 40m
Multiple Airlines
Tue 8/254:45 pm
LUX
- SEA
3 stops28h 10m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$743
This Mytrip deal was found by Cheapflights users on 7/29. 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 8/198:00 am
SEA
- LUX
3 stops26h 15m
Multiple Airlines
Mon 8/2410:30 am
LUX
- SEA
3 stops34h 25m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$764
This Booking.com deal was found by Cheapflights users on 7/31. 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 8/196:50 pm
SEA
- LUX
1 stop12h 15m
Lufthansa
Mon 8/246:05 am
LUX
- SEA
1 stop14h 50m
Lufthansa
Deal found 7/31![Lufthansa logo]()
$851
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 August 2, 2026.
Search for one-way flight options from Seattle to Luxembourg. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 12/78:21 am
SEA
- LUX
3 stops25h 44m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 10/193:40 pm
SEA
- LUX
3 stops32h 50m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 pm
SEA
- LUX
3 stops31h 30m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$279
This Trip.com deal was found by Cheapflights users on 8/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:00 pm
SEA
- LUX
2 stops30h 30m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 12/68:21 am
SEA
- LUX
3 stops26h 54m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Sat 10/247:10 pm
SEA
- LUX
3 stops41h 05m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 10/237:00 pm
SEA
- LUX
3 stops29h 55m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 10/207:00 pm
SEA
- LUX
2 stops37h 25m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 8/2. 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.
Mon 12/76:45 pm
SEA
- LUX
1 stop17h 20m
British Airways
Deal found 8/2![British Airways 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 August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $712 (Gotogate) |
One-way from | $238 (Kiwi.com) |
Popular in | July |
Cheapest in | August |
Average price | $426 |
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 August 2, 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 - LUX
SEALUX
Seattle/Tacoma Intl
Sun 9/13
8:00 am-9:30 am
2 stops40h 30m
Luxembourg
Mon 9/28
8:55 pm-6:32 pm
2 stops30h 37m
$712
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Thu 9/10
8:10 am-7:30 pm
2 stops26h 20m
Luxembourg
Wed 9/30
8:20 am-11:26 pm
2 stops24h 06m
$744
Quickest round-trip
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 8/22
6:50 pm-7:30 pm
1 stop15h 40m
Luxembourg
Mon 8/31
8:25 am-11:55 am
1 stop12h 30m
$886
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-11:26 pm
3 stops24h 06m
$897
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Wed 8/19
6:50 pm-4:05 pm
1 stop12h 15m
Luxembourg
Mon 8/24
4:50 pm-4:59 pm
1 stop33h 09m
$899
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 8/22
11:59 pm-7:30 pm
2 stops34h 31m
Luxembourg
Sat 9/5
8:20 am-11:55 am
1 stop12h 35m
$913
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 8/22
3:40 pm-9:50 am
3 stops33h 10m
Luxembourg
Mon 8/31
11:15 am-11:45 am
2 stops33h 30m
$923
Cheapest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Mon 12/7
8:21 am-7:05 pm
3 stops25h 44m
$238
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sun 12/6
8:21 am-8:15 pm
3 stops26h 54m
$291
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Thu 10/22
7:00 pm-5:50 pm
3 stops37h 50m
$297
Showing 1-10 of 17 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 August.
| 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 August 2, 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.
Crew
8.2
Boarding
7.5
Overall
7.5
Entertainment
7.0
Food
7.1
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Crew
8.2
Boarding
7.5
Overall
7.5
Entertainment
7.0
Food
7.1
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Crew
8.2
Boarding
7.5
Overall
7.5
Entertainment
7.0
Food
7.1
Comfort
7.4
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Crew
8.2
Boarding
7.5
Overall
7.5
Entertainment
7.0
Food
7.1
Comfort
7.4
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 August 2, 2026.
Seattle and Luxembourg flights
Browse other Seattle and Luxembourg flight options. Last updated on August 2, 2026.
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Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 2, 2026.
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 2,558,603 searches. Data last updated August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$455 | Average$723 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$471 | Average$592 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$490 | Average$723 | FlexibilityNo cancel fee | On-time76% |