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Cheap flights from Seattle to Luxembourg from $364

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Luxembourg departing on 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Luxembourg

Cheap round-trip flights

British Airways Logo
1:35 pm - 9:10 pmSEA-LUX
23h 35m2 stops
British Airways Logo
11:00 am - 12:58 amLUX-SEA
22h 58m2 stops
$507British Airways
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
4:00 pm - 5:50 pmSEA-LUX
17h 50m1 stop
Delta Logo
6:00 am - 11:45 amLUX-SEA
14h 45m1 stop
$521Delta
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
9:46 am - 2:15 pmSEA-LUX
20h 29m2 stops
Delta Logo
6:00 am - 11:45 amLUX-SEA
14h 45m1 stop
$526Delta
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air France Logo
1:30 pm - 1:50 pmSEA-LUX
15h 20m1 stop
Air France Logo
7:30 am - 2:20 pmLUX-SEA
14h 50m1 stop
$577Air France
Find Deal
Fri, Oct 17 - Wed, Oct 29
Air Canada Logo
2:55 pm - 7:35 pmSEA-LUX
19h 40m2 stops
Air Canada Logo
7:10 am - 10:16 pmLUX-SEA
23h 06m2 stops
$579Air Canada
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Fri, Oct 17 - Wed, Oct 29
Multiple Airlines Logo
2:55 pm - 7:35 pmSEA-LUX
19h 40m2 stops
Multiple Airlines Logo
9:30 am - 2:20 pmLUX-SEA
12h 50m1 stop
$584Multiple Airlines
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Fri, Oct 17 - Wed, Oct 29
United Airlines Logo
5:05 am - 4:20 pmSEA-LUX
27h 15m2 stops
United Airlines Logo
9:30 am - 11:15 pmLUX-SEA
46h 45m3 stops
$830United Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
6:20 am - 10:00 amSEA-LUX
18h 40m2 stops
Multiple Airlines Logo
9:30 am - 12:10 pmLUX-SEA
59h 40m2 stops
$861Multiple Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 13
Multiple Airlines Logo
2:35 pm - 10:05 amSEA-LUX
34h 30m3 stops
Multiple Airlines Logo
7:55 pm - 5:00 pmLUX-SEA
30h 05m3 stops
$877Multiple Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 13
Multiple Airlines Logo
8:00 pm - 4:20 pmSEA-LUX
35h 20m2 stops
Multiple Airlines Logo
5:45 pm - 11:30 amLUX-SEA
26h 45m1 stop
$889Multiple Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 13

Delta flights from Seattle to Luxembourg

Our best Delta deals on Seattle to Luxembourg flight tickets
Delta
Oct 30
SEA4:00 pmSeattle/Tacoma Intl
17h 50m
1 stop
LUX5:50 pmLuxembourg
Nov 6
LUX6:00 amLuxembourg
14h 45m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$521
Find similar
Delta
Oct 30
SEA9:46 amSeattle/Tacoma Intl
20h 29m
2 stops
LUX2:15 pmLuxembourg
Nov 6
LUX6:00 amLuxembourg
14h 45m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$526
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
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

Price

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 10/30

1:35 pm-9:10 pm

2 stops23h 35m

Luxembourg

Thu 11/6

11:00 am-12:58 am

2 stops22h 58m

$507

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 10/30

4:00 pm-5:50 pm

1 stop17h 50m

Luxembourg

Thu 11/6

6:00 am-11:45 am

1 stop14h 45m

$521

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 10/30

9:46 am-2:15 pm

2 stops20h 29m

Luxembourg

Thu 11/6

6:00 am-11:45 am

1 stop14h 45m

$526

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 10/17

1:30 pm-1:50 pm

1 stop15h 20m

Luxembourg

Wed 10/29

7:30 am-2:20 pm

1 stop14h 50m

$577

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 10/17

2:55 pm-7:35 pm

2 stops19h 40m

Luxembourg

Wed 10/29

7:10 am-10:16 pm

2 stops23h 06m

$579

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 10/17

2:55 pm-7:35 pm

2 stops19h 40m

Luxembourg

Wed 10/29

9:30 am-2:20 pm

1 stop12h 50m

$584

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 10/30

5:05 am-4:20 pm

2 stops27h 15m

Luxembourg

Thu 11/6

9:30 am-11:15 pm

3 stops46h 45m

$830

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 11/8

6:20 am-10:00 am

2 stops18h 40m

Luxembourg

Thu 11/13

9:30 am-12:10 pm

2 stops59h 40m

$861

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 11/8

2:35 pm-10:05 am

3 stops34h 30m

Luxembourg

Thu 11/13

7:55 pm-5:00 pm

3 stops30h 05m

$877

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 11/8

8:00 pm-4:20 pm

2 stops35h 20m

Luxembourg

Thu 11/13

5:45 pm-11:30 am

1 stop26h 45m

$889

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Luxembourg from

How to get the cheapest flight ticket from Seattle to Luxembourg

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Luxembourg?

If you are unable to visit Luxembourg during the month of August, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $520.

What is the cheapest day to depart on your flight to Luxembourg?

On average, the least expensive day to fly to Luxembourg from Seattle is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $570. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Luxembourg on Thursday is $868.

What is the cheapest time of day to depart on your flight to Luxembourg?

According to our data, the cheapest time of day to fly to Luxembourg is in the evening. momondo users have found flights departing from Seattle to Luxembourg in the evening for as low as $554. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $730.

When to book flights from Seattle to Luxembourg

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Luxembourg according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Luxembourg (SEA to LUX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Luxembourg

Direct flights

None
There are no direct flights from Seattle to Luxembourg. There are no popular flight routes from Seattle to Luxembourg.
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  • How far is Seattle/Tacoma Intl to Luxembourg by plane?

    The straight-line distance from Seattle/Tacoma Intl to Luxembourg is 5046.7 mi. By plane, this route typically takes 15h 20m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Luxembourg Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Luxembourg Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Luxembourg Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Luxembourg Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Luxembourg Airport.

  • What documentation or ID do you need to fly to Luxembourg Airport?

    The travel and health documents you'll need for your trip to Luxembourg Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Luxembourg Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Luxembourg?

Best airlines flying from Seattle to Luxembourg

Compare and see reviews for airlines that fly from Seattle to Luxembourg with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $396Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
Air FrancePriceFrom $449Free CancellationRating
7.4
1,468 reviews
Search Air France flights
DeltaPriceFrom $496Free CancellationRating
7.9
7,957 reviews
Search Delta flights
LufthansaPriceFrom $601Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights

Traveling to a place near Luxembourg?

Book flights to Luxembourg if you plan to visit one of these locations
Esch-sur-Alzette
Clervaux

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Luxembourg?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Luxembourg. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Luxembourg with flexible booking policies on momondo?

Yes. All flights to Luxembourg from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Luxembourg?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Luxembourg.

I’m not ready to book a flight from Seattle to Luxembourg right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Luxembourg, momondo offers a useful price alert feature which will track prices for flights to Luxembourg from Seattle and alert you when they change.

An easier way to manage your Luxembourg trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Fri 10/17
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Fly your favorite airline to Luxembourg

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Delta
American Airlines
United Airlines
Turkish Airlines
Lufthansa
Frontier
British Airways
Qatar Airways
Spirit Airlines
Ryanair
Emirates
Alaska Airlines