$726+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LUX
Dec 11 — Dec 181
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 November 11, 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 November 11, 2026.
This Flysmarter deal was found by Cheapflights users on 11/7. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:45 pm -
1 stop17h 15m
Mon 12/145:15 pm -
1 stop27h 10m
Deal found 11/7![British Airways logo]()
$772
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
1 stop18h 15m
Mon 12/142:45 pm -
1 stop30h 05m
Deal found 11/8![Delta logo]()
$781
This Expedia deal was found by Cheapflights users on 11/7. 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.
Mon 12/710:55 pm -
2 stops26h 30m
Mon 12/142:45 pm -
2 stops34h 59m
Deal found 11/7![KLM logo]()
$783
This Expedia deal was found by Cheapflights users on 11/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/83:20 pm -
2 stops18h 00m
Wed 12/166:50 am -
2 stops24h 55m
Deal found 11/10![Multiple Airlines logo]()
$792
This SWISS deal was found by Cheapflights users on 11/8. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:48 am -
2 stops38h 12m
Mon 12/147:10 pm -
2 stops36h 33m
Deal found 11/8![SWISS logo]()
$793
This FlightHub deal was found by Cheapflights users on 11/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:20 am -
2 stops41h 30m
Mon 12/1410:30 am -
2 stops20h 32m
Deal found 11/8![Scandinavian Airlines logo]()
$811
This FlightHub deal was found by Cheapflights users on 11/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:50 pm -
1 stop16h 40m
Sun 12/136:50 am -
1 stop14h 10m
Deal found 11/8![Lufthansa logo]()
$820
This KLM deal was found by Cheapflights users on 11/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/72:35 pm -
1 stop18h 15m
Sun 12/1310:50 am -
1 stop13h 23m
Deal found 11/8![Multiple Airlines logo]()
$838
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 November 11, 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 November 11, 2026.
This United Airlines deal was found by Cheapflights users on 11/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/257:00 am -
2 stops24h 10m
Wed 4/288:15 am -
1 stop13h 05m
Deal found 11/7![United Airlines logo]()
$726
This British Airways deal was found by Cheapflights users on 11/7. 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 4/258:20 pm -
1 stop15h 00m
Wed 4/2811:35 am -
1 stop15h 50m
Deal found 11/7![British Airways logo]()
$733
This Expedia deal was found by Cheapflights users on 11/7. 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.
Mon 12/710:55 pm -
2 stops26h 30m
Mon 12/142:45 pm -
2 stops34h 59m
Deal found 11/7![KLM logo]()
$783
This FlightHub deal was found by Cheapflights users on 11/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:50 pm -
1 stop16h 40m
Sun 12/139:15 am -
2 stops18h 07m
Deal found 11/8![Lufthansa logo]()
$822
This KLM deal was found by Cheapflights users on 11/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/72:35 pm -
1 stop18h 15m
Sun 12/1310:50 am -
1 stop13h 23m
Deal found 11/8![Multiple Airlines logo]()
$838
This Flysmarter deal was found by Cheapflights users on 11/7. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:51 am -
2 stops25h 09m
Mon 12/149:55 pm -
1 stop22h 30m
Deal found 11/7![British Airways logo]()
$775
This British Airways deal was found by Cheapflights users on 11/10. 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.
Fri 12/256:45 pm -
1 stop28h 40m
Wed 1/611:10 am -
1 stop33h 15m
Deal found 11/10![British Airways logo]()
$981
Last-minute flights from Seattle to LuxembourgDiscover last-minute flight deals from Seattle to Luxembourg. Data last updated November 11, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luxembourg. Data last updated November 11, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 11/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:39 am -
2 stops23h 41m
Sun 12/138:00 pm -
2 stops33h 24m
Deal found 11/8![Scandinavian Airlines logo]()
$811
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
1 stop18h 15m
Mon 12/142:45 pm -
1 stop30h 05m
Deal found 11/8![Delta logo]()
$781
This SWISS deal was found by Cheapflights users on 11/8. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:48 am -
2 stops38h 12m
Mon 12/147:10 pm -
2 stops36h 33m
Deal found 11/8![SWISS logo]()
$793
This FlightHub deal was found by Cheapflights users on 11/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:50 pm -
1 stop16h 40m
Sun 12/136:50 am -
1 stop14h 10m
Deal found 11/8![Lufthansa logo]()
$820
This Flysmarter deal was found by Cheapflights users on 11/7. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:45 pm -
1 stop17h 15m
Mon 12/145:15 pm -
1 stop27h 10m
Deal found 11/7![British Airways logo]()
$772
This Expedia deal was found by Cheapflights users on 11/7. 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.
Mon 12/710:55 pm -
2 stops26h 30m
Mon 12/142:45 pm -
2 stops34h 59m
Deal found 11/7![KLM logo]()
$783
This KLM deal was found by Cheapflights users on 11/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/72:35 pm -
1 stop18h 15m
Sun 12/1310:50 am -
1 stop13h 23m
Deal found 11/8![Multiple Airlines logo]()
$838
This Expedia deal was found by Cheapflights users on 11/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/83:20 pm -
2 stops18h 00m
Wed 12/166:50 am -
2 stops24h 55m
Deal found 11/10![Multiple Airlines logo]()
$792
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 November 11, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $722 (Air Canada) |
Popular in | December |
Cheapest in | August |
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 November 11, 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 4/25
7:00 am-4:10 pm
2 stops24h 10m
Luxembourg
Wed 4/28
8:15 am-12:20 pm
1 stop13h 05m
$726
Quickest round-trip
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Sun 4/25
8:20 pm-8:20 pm
1 stop15h 00m
Luxembourg
Wed 4/28
11:35 am-6:25 pm
1 stop15h 50m
$733
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Mon 12/7
10:51 am-9:00 pm
2 stops25h 09m
Luxembourg
Mon 12/14
9:55 pm-11:25 am
1 stop22h 30m
$775
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Mon 12/7
10:55 pm-10:25 am
2 stops26h 30m
Luxembourg
Mon 12/14
2:45 pm-4:44 pm
2 stops34h 59m
$783
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Sun 12/6
2:50 pm-4:30 pm
1 stop16h 40m
Luxembourg
Sun 12/13
9:15 am-6:22 pm
2 stops18h 07m
$822
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Mon 12/7
2:35 pm-5:50 pm
1 stop18h 15m
Luxembourg
Sun 12/13
10:50 am-3:13 pm
1 stop13h 23m
$838
SeattleLuxembourg
SEA Seattle/Tacoma Intl - LUX Luxembourg
SEALUX
Seattle/Tacoma Intl
Fri 12/25
6:45 pm-8:25 am
1 stop28h 40m
Luxembourg
Wed 1/6
11:10 am-11:25 am
1 stop33h 15m
$981
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| 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 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 November 11, 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
Comfort
7.4
Entertainment
7.0
Food
7.1
Overall
7.5
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Crew
8.2
Comfort
7.4
Entertainment
7.0
Food
7.1
Overall
7.5
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Crew
8.2
Comfort
7.4
Entertainment
7.0
Food
7.1
Overall
7.5
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Crew
8.2
Comfort
7.4
Entertainment
7.0
Food
7.1
Overall
7.5
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - 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 November 11, 2026.
Seattle and Luxembourg flights
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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 November 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$471 | Average$592 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$477 | Average$840 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$588 | Average$723 | FlexibilityNo cancel fee | On-time76% |