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Cheap flights from Seattle to Luxembourg from $329

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 6/15. 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
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.
British Airways Logo
1:30 pm - 7:45 pm
SEA
-
LUX
21h 15m
1 stop
British Airways Logo
9:35 pm - 11:35 am
LUX
-
SEA
23h 00m
1 stop
$688British Airways
Tue, Aug 4 - Wed, Aug 19
British Airways Logo
1:30 pm - 10:40 am
SEA
-
LUX
12h 10m
1 stop
British Airways Logo
9:35 pm - 11:35 am
LUX
-
SEA
23h 00m
1 stop
$689British Airways
Tue, Aug 4 - Wed, Aug 19
Lufthansa Logo
6:50 pm - 4:10 pm
SEA
-
LUX
12h 20m
1 stop
Lufthansa Logo
6:25 am - 11:55 am
LUX
-
SEA
14h 30m
1 stop
$692Lufthansa
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
10:45 am - 2:00 pm
SEA
-
LUX
18h 15m
2 stops
Multiple Airlines Logo
10:15 am - 6:32 pm
LUX
-
SEA
17h 17m
2 stops
$695Multiple Airlines
Tue, Aug 4 - Wed, Aug 19
United Airlines Logo
8:56 am - 4:10 pm
SEA
-
LUX
22h 14m
2 stops
United Airlines Logo
8:20 am - 11:55 am
LUX
-
SEA
12h 35m
1 stop
$698United Airlines
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
7:01 am - 6:00 pm
SEA
-
LUX
25h 59m
2 stops
Multiple Airlines Logo
7:20 pm - 6:32 pm
LUX
-
SEA
32h 12m
2 stops
$700Multiple Airlines
Tue, Aug 4 - Wed, Aug 19
Air Canada Logo
8:00 am - 4:10 pm
SEA
-
LUX
23h 10m
2 stops
Air Canada Logo
8:20 am - 6:32 pm
LUX
-
SEA
19h 12m
2 stops
$702Air Canada
Tue, Aug 18 - Wed, Aug 26
Lufthansa Logo
2:10 pm - 2:00 pm
SEA
-
LUX
14h 50m
1 stop
Lufthansa Logo
6:25 am - 11:55 am
LUX
-
SEA
14h 30m
1 stop
$704Lufthansa
Tue, Aug 18 - Wed, Aug 26
United Airlines Logo
10:47 am - 4:10 pm
SEA
-
LUX
20h 23m
2 stops
United Airlines Logo
8:20 am - 11:24 pm
LUX
-
SEA
24h 04m
3 stops
$708United Airlines
Tue, Aug 18 - Wed, Aug 26
United Airlines Logo
7:30 am - 4:10 pm
SEA
-
LUX
23h 40m
2 stops
United Airlines Logo
8:20 am - 11:24 pm
LUX
-
SEA
24h 04m
3 stops
$709United Airlines
Tue, Aug 4 - Wed, Aug 19

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United Airlines flights from Seattle to Luxembourg

Our best United Airlines deals on Seattle to Luxembourg flight tickets
United Airlines
Aug 4
SEA8:56 amSeattle/Tacoma Intl
22h 14m
2 stops
LUX4:10 pmLuxembourg
Aug 19
LUX8:20 amLuxembourg
12h 35m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$698
United Airlines
Aug 18
SEA10:47 amSeattle/Tacoma Intl
20h 23m
2 stops
LUX4:10 pmLuxembourg
Aug 26
LUX8:20 amLuxembourg
24h 04m
3 stops
SEA11:24 pmSeattle/Tacoma Intl
$708
United Airlines
Aug 4
SEA7:30 amSeattle/Tacoma Intl
23h 40m
2 stops
LUX4:10 pmLuxembourg
Aug 19
LUX8:20 amLuxembourg
24h 04m
3 stops
SEA11:24 pmSeattle/Tacoma Intl
$709

Lufthansa flights from Seattle to Luxembourg

Our best Lufthansa deals on Seattle to Luxembourg flight tickets
Lufthansa
Aug 18
SEA6:50 pmSeattle/Tacoma Intl
12h 20m
1 stop
LUX4:10 pmLuxembourg
Aug 26
LUX6:25 amLuxembourg
14h 30m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$692
Lufthansa
Aug 18
SEA2:10 pmSeattle/Tacoma Intl
14h 50m
1 stop
LUX2:00 pmLuxembourg
Aug 26
LUX6:25 amLuxembourg
14h 30m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$704
Lufthansa
Oct 6
SEA3:00 pmSeattle/Tacoma Intl
37h 50m
2 stops
LUX1:50 pmLuxembourg
Oct 27
LUX7:10 amLuxembourg
14h 00m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
$742

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 May 1, 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

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

$688

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

1:30 pm-10:40 am

1 stop12h 10m

Luxembourg

Wed 8/19

9:35 pm-11:35 am

1 stop23h 00m

$689
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

6:25 am-11:55 am

1 stop14h 30m

$692

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

10:45 am-2:00 pm

2 stops18h 15m

Luxembourg

Wed 8/19

10:15 am-6:32 pm

2 stops17h 17m

$695

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

8:56 am-4:10 pm

2 stops22h 14m

Luxembourg

Wed 8/19

8:20 am-11:55 am

1 stop12h 35m

$698

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

7:01 am-6:00 pm

2 stops25h 59m

Luxembourg

Wed 8/19

7:20 pm-6:32 pm

2 stops32h 12m

$700

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/18

8:00 am-4:10 pm

2 stops23h 10m

Luxembourg

Wed 8/26

8:20 am-6:32 pm

2 stops19h 12m

$702

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/18

2:10 pm-2:00 pm

1 stop14h 50m

Luxembourg

Wed 8/26

6:25 am-11:55 am

1 stop14h 30m

$704

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/18

10:47 am-4:10 pm

2 stops20h 23m

Luxembourg

Wed 8/26

8:20 am-11:24 pm

3 stops24h 04m

$708

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

7:30 am-4:10 pm

2 stops23h 40m

Luxembourg

Wed 8/19

8:20 am-11:24 pm

3 stops24h 04m

$709

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 typical price of a round-trip flight between Seattle and Luxembourg?

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 November is also very affordable. Most momondo users find prices during this month for around $469.

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

15h 40m

Direct flights

None
The fastest flight from Seattle to Luxembourg takes 15h 40m
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 15h 40m.

  • 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
7,936 reviews
Search British Airways flights
Air FrancePriceFrom $449Free CancellationRating
7.4
1,582 reviews
Search Air France flights
United AirlinesPriceFrom $471Free CancellationRating
7.4
9,677 reviews
Search United Airlines flights
LufthansaPriceFrom $490Free CancellationRating
6.8
7,964 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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Fly your favorite airline to Luxembourg

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