$465+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Aug 3 — Aug 101
Round-trip
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
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 July 4, 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 July 4, 2026.
This Gotogate deal was found by Cheapflights users on 6/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
SEA
- LUX
2 stops23h 00m
Multiple Airlines
Tue 8/256:05 am
LUX
- SEA
2 stops17h 17m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$671
This FlightHub deal was found by Cheapflights users on 6/30. 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 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 6/30![Lufthansa logo]()
$686
This Air France deal was found by Cheapflights users on 7/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:30 pm
SEA
- LUX
1 stop12h 05m
Multiple Airlines
Wed 8/196:00 am
LUX
- SEA
1 stop19h 27m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$689
This Air France deal was found by Cheapflights users on 6/30. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:30 pm
SEA
- LUX
1 stop15h 20m
Multiple Airlines
Wed 8/266:00 am
LUX
- SEA
1 stop14h 37m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$690
This SWISS deal was found by Cheapflights users on 7/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:40 am
SEA
- LUX
2 stops23h 00m
SWISS
Wed 8/197:20 pm
LUX
- SEA
2 stops32h 12m
SWISS
Deal found 7/2![SWISS logo]()
$696
This United Airlines deal was found by Cheapflights users on 7/3. 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 7/3![United Airlines logo]()
$702
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 July 4, 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 July 4, 2026.
This SWISS deal was found by Cheapflights users on 7/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:40 am
SEA
- LUX
2 stops23h 00m
SWISS
Wed 8/197:20 pm
LUX
- SEA
2 stops32h 12m
SWISS
Deal found 7/2![SWISS logo]()
$696
This United deal was found by Cheapflights users on 7/2. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:50 pm
SEA
- LUX
2 stops42h 15m
Multiple Airlines
Wed 8/196:25 am
LUX
- SEA
1 stop14h 30m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$697
This United Airlines deal was found by Cheapflights users on 7/3. 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 7/3![United Airlines logo]()
$702
This KLM deal was found by Cheapflights users on 6/30. 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 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 6/30![KLM logo]()
$731
This United Airlines deal was found by Cheapflights users on 7/4. 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.
Mon 8/107:00 am
SEA
- LUX
3 stops24h 05m
United Airlines
Tue 8/258:30 am
LUX
- SEA
2 stops18h 12m
United Airlines
Deal found 7/4![United Airlines logo]()
$707
This United Airlines deal was found by Cheapflights users on 7/4. 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 10/611:14 pm
SEA
- LUX
2 stops23h 31m
United Airlines
Tue 10/279:30 am
LUX
- SEA
3 stops43h 08m
United Airlines
Deal found 7/4![United Airlines logo]()
$761
This United Airlines deal was found by Cheapflights users on 7/3. 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 8/2211:00 pm
SEA
- LUX
2 stops32h 05m
United Airlines
Mon 8/318:25 am
LUX
- SEA
2 stops47h 18m
United Airlines
Deal found 7/3![United Airlines logo]()
$763
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated July 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated July 4, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 7/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:30 pm
SEA
- LUX
1 stop12h 05m
Multiple Airlines
Wed 8/196:00 am
LUX
- SEA
1 stop19h 27m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$689
This SWISS deal was found by Cheapflights users on 7/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:40 am
SEA
- LUX
2 stops23h 00m
SWISS
Wed 8/197:20 pm
LUX
- SEA
2 stops32h 12m
SWISS
Deal found 7/2![SWISS logo]()
$696
This Gotogate deal was found by Cheapflights users on 6/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
SEA
- LUX
2 stops23h 00m
Multiple Airlines
Tue 8/256:05 am
LUX
- SEA
2 stops17h 17m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$671
This FlightHub deal was found by Cheapflights users on 6/30. 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 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 6/30![Lufthansa logo]()
$686
This Air France deal was found by Cheapflights users on 6/30. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:30 pm
SEA
- LUX
1 stop15h 20m
Multiple Airlines
Wed 8/266:00 am
LUX
- SEA
1 stop14h 37m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$690
This United Airlines deal was found by Cheapflights users on 7/3. 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 7/3![United Airlines logo]()
$702
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 July 4, 2026.
Search for one-way flight options from Seattle to Luxembourg. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 7/96:05 pm
SEA
- LUX
3 stops52h 20m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$465
This Cheapflightsfares deal was found by Cheapflights users on 7/3. 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 7/91:30 pm
SEA
- LUX
1 stop21h 55m
British Airways
Deal found 7/3![British Airways logo]()
$672
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 July 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $671 (Gotogate) |
One-way from | $465 (Kiwi.com) |
Popular in | July |
Cheapest in | August |
Average price | $1,076 |
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 July 4, 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
Mon 8/3
10:40 am-6:40 pm
2 stops23h 00m
Luxembourg
Wed 8/19
7:20 pm-6:32 pm
2 stops32h 12m
$696
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Mon 8/3
12:50 pm-4:05 pm
2 stops42h 15m
Luxembourg
Wed 8/19
6:25 am-11:55 am
1 stop14h 30m
$697
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-11:26 pm
3 stops24h 06m
$702
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Mon 8/10
7:00 am-4:05 pm
3 stops24h 05m
Luxembourg
Tue 8/25
8:30 am-5:42 pm
2 stops18h 12m
$707
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
$731
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 10/6
11:14 pm-7:45 am
2 stops23h 31m
Luxembourg
Tue 10/27
9:30 am-8:38 pm
3 stops43h 08m
$761
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 8/22
11:00 pm-4:05 pm
2 stops32h 05m
Luxembourg
Mon 8/31
8:25 am-10:43 pm
2 stops47h 18m
$763
Cheapest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Thu 7/9
6:05 pm-7:25 am
3 stops52h 20m
$465
Quickest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Thu 7/9
1:30 pm-8:25 pm
1 stop21h 55m
$672
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 July.
| 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 July 4, 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
Entertainment
7.0
Food
7.0
Overall
7.5
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Entertainment
7.0
Food
7.0
Overall
7.5
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Entertainment
7.0
Food
7.0
Overall
7.5
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Entertainment
7.0
Food
7.0
Overall
7.5
Crew
8.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentCarlie,Jun 2026
ATH - CDG
Comfort
7.4
Entertainment
7.0
Food
7.0
Overall
7.5
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
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.
Complete your trip
Flights by cabin class
Luxembourg flight routes
Other flight options
Other flights from Seattle
Popular flights
Complete your trip
Complete your trip to Luxembourg by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Luxembourg by cabin class
Find flights from Seattle to Luxembourg, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 July 4, 2026.
Seattle and Luxembourg flights
Browse other Seattle and Luxembourg flight options. Last updated on July 4, 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 July 4, 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 July 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$396 | Average$476 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$456 | Average$507 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$471 | Average$592 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$490 | Average$723 | FlexibilityNo cancel fee | On-time76% |