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Cheap flights from Seattle to Luxembourg from $238

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 12/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Luxembourg

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 9:30 am
SEA
-
LUX
40h 30m
2 stops
Multiple Airlines Logo
8:55 pm - 6:32 pm
LUX
-
SEA
30h 37m
2 stops
$712Multiple Airlines
Sun, Sep 13 - Mon, Sep 28
Multiple Airlines Logo
6:50 pm - 4:05 pm
SEA
-
LUX
12h 15m
1 stop
Multiple Airlines Logo
8:55 pm - 6:32 pm
LUX
-
SEA
30h 37m
2 stops
$718Multiple Airlines
Sun, Sep 6 - Mon, Sep 21
Multiple Airlines Logo
6:45 pm - 10:35 am
SEA
-
LUX
30h 50m
1 stop
Multiple Airlines Logo
2:35 pm - 11:47 am
LUX
-
SEA
30h 12m
1 stop
$722Multiple Airlines
Sun, Sep 13 - Mon, Sep 28
United Airlines Logo
8:10 am - 4:05 pm
SEA
-
LUX
22h 55m
2 stops
United Airlines Logo
8:20 am - 11:55 am
LUX
-
SEA
12h 35m
1 stop
$734United Airlines
Thu, Sep 10 - Wed, Sep 30
United Airlines Logo
8:10 am - 7:30 pm
SEA
-
LUX
26h 20m
2 stops
United Airlines Logo
8:20 am - 11:26 pm
LUX
-
SEA
24h 06m
2 stops
$744United Airlines
Thu, Sep 10 - Wed, Sep 30
Lufthansa Logo
7:20 pm - 1:50 pm
SEA
-
LUX
33h 30m
2 stops
Lufthansa Logo
5:10 pm - 2:00 pm
LUX
-
SEA
28h 50m
1 stop
$750Lufthansa
Tue, Oct 6 - Tue, Oct 27
Lufthansa Logo
7:20 pm - 1:50 pm
SEA
-
LUX
33h 30m
2 stops
Lufthansa Logo
5:10 pm - 2:00 pm
LUX
-
SEA
28h 50m
1 stop
$751Lufthansa
Tue, Oct 6 - Tue, Oct 27
United Airlines Logo
8:10 am - 7:30 pm
SEA
-
LUX
26h 20m
2 stops
United Airlines Logo
8:20 am - 9:59 pm
LUX
-
SEA
46h 39m
3 stops
$755United Airlines
Thu, Sep 10 - Wed, Sep 30
Air France Logo
1:30 pm - 10:35 am
SEA
-
LUX
12h 05m
1 stop
Air France Logo
7:30 am - 2:50 pm
LUX
-
SEA
15h 20m
1 stop
$757Air France
Tue, Oct 6 - Tue, Oct 27
Air France Logo
1:30 pm - 10:35 am
SEA
-
LUX
12h 05m
1 stop
Air France Logo
7:30 am - 2:50 pm
LUX
-
SEA
15h 20m
1 stop
$758Air France
Tue, Oct 6 - Tue, Oct 27

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Air Canada flights from Seattle to Luxembourg

Our best Air Canada deals on Seattle to Luxembourg flight tickets
Air Canada
Oct 6
SEA7:20 pmSeattle/Tacoma Intl
35h 45m
2 stops
LUX4:05 pmLuxembourg
Oct 27
LUX6:50 amLuxembourg
22h 09m
2 stops
SEA8:59 pmSeattle/Tacoma Intl
$731
Air Canada
Oct 6
SEA7:20 pmSeattle/Tacoma Intl
35h 45m
2 stops
LUX4:05 pmLuxembourg
Oct 27
LUX6:50 amLuxembourg
22h 09m
2 stops
SEA8:59 pmSeattle/Tacoma Intl
$732

United Airlines flights from Seattle to Luxembourg

Our best United Airlines deals on Seattle to Luxembourg flight tickets
United Airlines
Sep 10
SEA8:10 amSeattle/Tacoma Intl
22h 55m
2 stops
LUX4:05 pmLuxembourg
Sep 30
LUX8:20 amLuxembourg
12h 35m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$734
United Airlines
Sep 10
SEA8:10 amSeattle/Tacoma Intl
26h 20m
2 stops
LUX7:30 pmLuxembourg
Sep 30
LUX8:20 amLuxembourg
24h 06m
2 stops
SEA11:26 pmSeattle/Tacoma Intl
$744
United Airlines
Sep 10
SEA8:10 amSeattle/Tacoma Intl
26h 20m
2 stops
LUX7:30 pmLuxembourg
Sep 30
LUX8:20 amLuxembourg
46h 39m
3 stops
SEA9:59 pmSeattle/Tacoma Intl
$755

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 August 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

Price

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

Sun 9/6

6:50 pm-4:05 pm

1 stop12h 15m

Luxembourg

Mon 9/21

8:55 pm-6:32 pm

2 stops30h 37m

$718

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 9/13

6:45 pm-10:35 am

1 stop30h 50m

Luxembourg

Mon 9/28

2:35 pm-11:47 am

1 stop30h 12m

$722

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 9/10

8:10 am-4:05 pm

2 stops22h 55m

Luxembourg

Wed 9/30

8:20 am-11:55 am

1 stop12h 35m

$734

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

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/6

7:20 pm-1:50 pm

2 stops33h 30m

Luxembourg

Tue 10/27

5:10 pm-2:00 pm

1 stop28h 50m

$750

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/6

7:20 pm-1:50 pm

2 stops33h 30m

Luxembourg

Tue 10/27

5:10 pm-2:00 pm

1 stop28h 50m

$751

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-9:59 pm

3 stops46h 39m

$755
Quickest round-trip

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/6

1:30 pm-10:35 am

1 stop12h 05m

Luxembourg

Tue 10/27

7:30 am-2:50 pm

1 stop15h 20m

$757

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 10/6

1:30 pm-10:35 am

1 stop12h 05m

Luxembourg

Tue 10/27

7:30 am-2:50 pm

1 stop15h 20m

$758

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $477.

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

Fastest flight time

12h 15m

Direct flights

None
The fastest flight from Seattle to Luxembourg takes 12h 15m
There are no direct flights from Seattle to Luxembourg. There are no popular flight routes from Seattle to Luxembourg.
Search flight deals

Frequently asked questions about flying from Seattle to Luxembourg

  • 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 12h 15m.

  • 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
Air FrancePriceFrom $455Free CancellationRating
7.5
1,633 reviews
Search Air France flights
United AirlinesPriceFrom $471Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
LufthansaPriceFrom $490Free CancellationRating
6.8
8,175 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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Find better results for your trip to Luxembourg

Fly your favorite airline to Luxembourg

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Lufthansa
United Airlines
Air France