$289+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
May 12 — May 191
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 April 12, 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 April 12, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/8. 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.
Tue 8/48:20 pm
SEA
- LUX
1 stop14h 25m
British Airways
Wed 8/199:35 pm
LUX
- SEA
1 stop23h 00m
British Airways
Deal found 4/8![British Airways logo]()
$687
This FlightHub deal was found by Cheapflights users on 4/11. 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 20m
Multiple Airlines
Wed 8/2610:15 am
LUX
- SEA
2 stops17h 17m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$688
This FlightHub deal was found by Cheapflights users on 4/10. 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 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 20m
Lufthansa
Wed 8/268:20 am
LUX
- SEA
1 stop12h 35m
Lufthansa
Deal found 4/10![Lufthansa logo]()
$692
This United Airlines deal was found by Cheapflights users on 4/9. 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 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 20m
United Airlines
Wed 8/268:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 4/9![United Airlines logo]()
$693
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:02 am
SEA
- LUX
2 stops20h 08m
United Airlines
Wed 8/198:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 4/10![United Airlines logo]()
$698
This Iberia deal was found by Cheapflights users on 4/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:30 pm
SEA
- LUX
1 stop12h 10m
Multiple Airlines
Wed 8/1911:35 am
LUX
- SEA
2 stops19h 45m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$705
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 April 12, 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 April 12, 2026.
This United Airlines deal was found by Cheapflights users on 4/9. 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 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 20m
United Airlines
Wed 8/268:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 4/9![United Airlines logo]()
$693
This British Airways deal was found by Cheapflights users on 4/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:30 pm
SEA
- LUX
1 stop21h 15m
British Airways
Wed 8/199:35 pm
LUX
- SEA
1 stop23h 00m
British Airways
Deal found 4/10![British Airways logo]()
$696
This Iberia deal was found by Cheapflights users on 4/9. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:30 pm
SEA
- LUX
1 stop12h 10m
Multiple Airlines
Wed 8/1911:35 am
LUX
- SEA
2 stops19h 45m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$705
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:10 am
SEA
- LUX
2 stops18h 30m
American Airlines
Wed 8/1911:35 am
LUX
- SEA
2 stops19h 45m
American Airlines
Deal found 4/9![American Airlines logo]()
$708
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:02 am
SEA
- LUX
2 stops20h 08m
United Airlines
Wed 8/198:20 am
LUX
- SEA
1 stop12h 35m
United Airlines
Deal found 4/10![United Airlines logo]()
$698
This British Airways deal was found by Cheapflights users on 4/8. 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 8/188:20 pm
SEA
- LUX
1 stop14h 25m
British Airways
Wed 8/269:35 pm
LUX
- SEA
1 stop23h 00m
British Airways
Deal found 4/8![British Airways logo]()
$725
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated April 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated April 12, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/11. 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.
Sat 4/257:10 pm
SEA
- LUX
1 stop29h 15m
Turkish Airlines
Tue 4/286:35 pm
LUX
- SEA
1 stop31h 40m
Turkish Airlines
Deal found 4/11![Turkish Airlines logo]()
$869
This British Airways deal was found by Cheapflights users on 4/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:20 pm
SEA
- LUX
1 stop29h 15m
British Airways
Mon 5/254:50 pm
LUX
- SEA
1 stop27h 45m
British Airways
Deal found 4/7![British Airways logo]()
$819
This Mytrip deal was found by Cheapflights users on 4/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:00 pm
SEA
- LUX
2 stops15h 15m
Multiple Airlines
Mon 5/259:50 pm
LUX
- SEA
3 stops32h 18m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$865
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:15 am
SEA
- LUX
2 stops17h 40m
Delta
Mon 5/2510:25 am
LUX
- SEA
1 stop15h 05m
Delta
Deal found 4/7![Delta logo]()
$903
This Expedia deal was found by Cheapflights users on 4/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:35 pm
SEA
- LUX
2 stops30h 30m
KLM
Mon 5/256:00 am
LUX
- SEA
1 stop14h 42m
KLM
Deal found 4/7![KLM logo]()
$906
This British Airways deal was found by Cheapflights users on 4/11. 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 5/118:20 pm
SEA
- LUX
1 stop29h 20m
British Airways
Wed 5/279:35 pm
LUX
- SEA
1 stop23h 00m
British Airways
Deal found 4/11![British Airways logo]()
$782
This Delta deal was found by Cheapflights users on 4/11. 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.
Mon 5/117:15 am
SEA
- LUX
2 stops21h 50m
Delta
Wed 5/276:00 am
LUX
- SEA
1 stop19h 30m
Delta
Deal found 4/11![Delta logo]()
$842
This British Airways deal was found by Cheapflights users on 4/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:30 pm
SEA
- LUX
1 stop17h 30m
British Airways
Thu 6/1811:45 am
LUX
- SEA
1 stop32h 50m
British Airways
Deal found 4/7![British Airways logo]()
$888
This British Airways deal was found by Cheapflights users on 4/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:30 pm
SEA
- LUX
1 stop21h 50m
British Airways
Fri 6/1211:25 am
LUX
- SEA
1 stop16h 00m
British Airways
Deal found 4/7![British Airways logo]()
$927
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 April 12, 2026.
Search for one-way flight options from Seattle to Luxembourg. Find affordable one-way fares based on user searches. Data last updated April 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:00 pm
SEA
- LUX
3 stops52h 30m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$289
This FlightHub deal was found by Cheapflights users on 4/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:10 pm
SEA
- LUX
1 stop29h 15m
Turkish Airlines
Deal found 4/7![Turkish Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:32 am
SEA
- LUX
3 stops38h 18m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,709
This BusinessClass deal was found by Cheapflights users on 4/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:10 pm
SEA
- LUX
1 stop29h 15m
Turkish Airlines
Deal found 4/7![Turkish Airlines logo]()
$2,801
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 April 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $687 (Cheapflightsfares) |
One-way from | $289 (Kiwi.com) |
Popular in | June |
Cheapest in | August |
Average price | $692 |
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 April 12, 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-4:10 pm
1 stop12h 20m
Luxembourg
Wed 8/26
8:20 am-11:55 am
1 stop12h 35m
$693
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 8/4
1:30 pm-7:45 pm
1 stop21h 15m
Luxembourg
Wed 8/19
9:35 pm-11:35 am
1 stop23h 00m
$696
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 8/4
11:02 am-4:10 pm
2 stops20h 08m
Luxembourg
Wed 8/19
8:20 am-11:55 am
1 stop12h 35m
$698
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 8/4
1:30 pm-10:40 am
1 stop12h 10m
Luxembourg
Wed 8/19
11:35 am-10:20 pm
2 stops19h 45m
$705
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 8/4
7:10 am-10:40 am
2 stops18h 30m
Luxembourg
Wed 8/19
11:35 am-10:20 pm
2 stops19h 45m
$708
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Tue 8/18
8:20 pm-7:45 pm
1 stop14h 25m
Luxembourg
Wed 8/26
9:35 pm-11:35 am
1 stop23h 00m
$725
Cheapest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 5/2
7:00 pm-8:30 am
3 stops52h 30m
$289
Quickest one-way
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sat 5/2
7:10 pm-9:25 am
1 stop29h 15m
$577
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sun 4/26
7:00 pm-10:35 pm
2 stops42h 35m
$2,519
SeattleLuxembourg
SEA - LUX
SEALUX
Seattle/Tacoma Intl
Sun 4/26
7:10 pm-9:25 am
1 stop29h 15m
$2,801
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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
What is the cheapest month to book a flight from Seattle to Luxembourg?
Currently, August is the cheapest month in which you can book a flight from Seattle to Luxembourg (average of $306). Flying from Seattle to Luxembourg in October is currently the most expensive (average of $835). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip 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 April 12, 2026.
Read through reviews of airlines operating flights from Seattle to Luxembourg, such as SWISS,Air France, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Overall
7.5
Boarding
7.7
Comfort
7.4
Entertainment
6.8
Crew
8.3
Reviews
1 / 20
10.0
ExcellentThomas,Mar 2026
BOS - ZRH
Food
7.1
Overall
7.5
Boarding
7.7
Comfort
7.4
Entertainment
6.8
Crew
8.3
Reviews
1 / 20
10.0
ExcellentThomas,Mar 2026
BOS - ZRH
Food
7.1
Overall
7.5
Boarding
7.7
Comfort
7.4
Entertainment
6.8
Crew
8.3
Reviews
1 / 20
10.0
ExcellentThomas,Mar 2026
BOS - ZRH
Food
7.1
Overall
7.5
Boarding
7.7
Comfort
7.4
Entertainment
6.8
Crew
8.3
Reviews
1 / 20
10.0
ExcellentThomas,Mar 2026
BOS - ZRH
Food
7.1
Overall
7.5
Boarding
7.7
Comfort
7.4
Entertainment
6.8
Crew
8.3
Reviews
1 / 20
10.0
ExcellentThomas,Mar 2026
BOS - ZRH
Food
7.1
Overall
7.5
Boarding
7.7
Comfort
7.4
Entertainment
6.8
Crew
8.3
Reviews
1 / 20
10.0
ExcellentThomas,Mar 2026
BOS - ZRH
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 April 12, 2026.
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Top 5 airlines flying from Seattle to Luxembourg
Discover the top 5 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 April 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$306 | Average$306 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$396 | Average$528 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$449 | Average$723 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$471 | Average$592 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$490 | Average$685 | FlexibilityNo cancel fee | On-time76% |