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Cheap flights from Seattle to Luxembourg from $469

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Luxembourg departing on 3/1. 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

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Find the cheapest flights from Seattle to Luxembourg

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
3:10 pm - 4:20 pm
SEA
-
LUX
16h 10m1 stop
Lufthansa Logo
6:15 am - 12:20 pm
LUX
-
SEA
15h 05m1 stop
$469Lufthansa
Sun, Mar 1 - Wed, May 13
Lufthansa Logo
3:10 pm - 4:20 pm
SEA
-
LUX
16h 10m1 stop
Lufthansa Logo
10:45 am - 8:52 pm
LUX
-
SEA
19h 07m2 stops
$474Lufthansa
Sun, Mar 1 - Wed, May 13
Air France Logo
2:10 pm - 1:50 pm
SEA
-
LUX
14h 40m1 stop
Air France Logo
10:50 am - 5:39 pm
LUX
-
SEA
15h 49m1 stop
$477Air France
Sun, Mar 1 - Wed, May 13
Lufthansa Logo
7:00 am - 9:55 am
SEA
-
LUX
17h 55m2 stops
Lufthansa Logo
6:15 am - 12:20 pm
LUX
-
SEA
15h 05m1 stop
$480Lufthansa
Sun, Mar 1 - Wed, May 13
Lufthansa Logo
7:00 am - 9:55 am
SEA
-
LUX
17h 55m2 stops
Lufthansa Logo
10:45 am - 8:52 pm
LUX
-
SEA
19h 07m2 stops
$485Lufthansa
Sun, Mar 1 - Wed, May 13
Lufthansa Logo
6:50 pm - 7:35 pm
SEA
-
LUX
15h 45m1 stop
Lufthansa Logo
8:20 am - 12:20 pm
LUX
-
SEA
13h 00m1 stop
$499Lufthansa
Wed, May 13 - Tue, May 26
British Airways Logo
1:35 pm - 8:20 pm
SEA
-
LUX
21h 45m1 stop
British Airways Logo
9:05 pm - 11:35 am
LUX
-
SEA
23h 30m1 stop
$505British Airways
Wed, May 13 - Mon, May 25
Multiple Airlines Logo
9:55 am - 1:50 pm
SEA
-
LUX
18h 55m2 stops
Multiple Airlines Logo
8:20 am - 12:20 pm
LUX
-
SEA
13h 00m1 stop
$515Multiple Airlines
Wed, May 13 - Tue, May 26
Multiple Airlines Logo
8:00 am - 6:20 pm
SEA
-
LUX
25h 20m2 stops
Multiple Airlines Logo
8:25 am - 12:20 pm
LUX
-
SEA
12h 55m1 stop
$561Multiple Airlines
Fri, Apr 10 - Fri, Jun 5
Multiple Airlines Logo
8:00 am - 9:40 am
SEA
-
LUX
40h 40m2 stops
Multiple Airlines Logo
10:30 am - 7:37 pm
LUX
-
SEA
18h 07m2 stops
$566Multiple Airlines
Fri, Apr 10 - Fri, Jun 5

Turkish Airlines flights from Seattle to Luxembourg

Our best Turkish Airlines deals on Seattle to Luxembourg flight tickets
Turkish Airlines
Jan 10
SEA7:00 pmSeattle/Tacoma Intl
29h 55m
1 stop
LUX9:55 amLuxembourg
Jan 13
LUX6:00 pmLuxembourg
32h 05m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$836
Find similar
Turkish Airlines
Jan 30
SEA7:00 pmSeattle/Tacoma Intl
37h 05m
1 stop
LUX5:05 pmLuxembourg
Feb 3
LUX6:00 pmLuxembourg
32h 05m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$876
Find similar
Turkish Airlines
Jan 3
SEA7:00 pmSeattle/Tacoma Intl
29h 55m
1 stop
LUX9:55 amLuxembourg
Jan 7
LUX10:50 amLuxembourg
39h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$1,193
Find similar

Delta flights from Seattle to Luxembourg

Our best Delta deals on Seattle to Luxembourg flight tickets
Delta
Jan 10
SEA7:15 amSeattle/Tacoma Intl
25h 35m
2 stops
LUX5:50 pmLuxembourg
Jan 13
LUX6:00 amLuxembourg
14h 50m
1 stop
SEA11:50 amSeattle/Tacoma Intl
$1,175
Find similar
Delta
Jan 10
SEA7:15 amSeattle/Tacoma Intl
25h 35m
2 stops
LUX5:50 pmLuxembourg
Jan 13
LUX6:00 amLuxembourg
22h 34m
2 stops
SEA7:34 pmSeattle/Tacoma Intl
$1,185
Find similar
Delta
Dec 25
SEA3:05 pmSeattle/Tacoma Intl
34h 20m
1 stop
LUX10:25 amLuxembourg
Jan 5
LUX10:55 amLuxembourg
33h 55m
1 stop
SEA11:50 amSeattle/Tacoma Intl
$1,423
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 December 16, 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

Sun 3/1

3:10 pm-4:20 pm

1 stop16h 10m

Luxembourg

Wed 5/13

6:15 am-12:20 pm

1 stop15h 05m

$469

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/1

3:10 pm-4:20 pm

1 stop16h 10m

Luxembourg

Wed 5/13

10:45 am-8:52 pm

2 stops19h 07m

$474

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/1

2:10 pm-1:50 pm

1 stop14h 40m

Luxembourg

Wed 5/13

10:50 am-5:39 pm

1 stop15h 49m

$477

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/1

7:00 am-9:55 am

2 stops17h 55m

Luxembourg

Wed 5/13

6:15 am-12:20 pm

1 stop15h 05m

$480

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/1

7:00 am-9:55 am

2 stops17h 55m

Luxembourg

Wed 5/13

10:45 am-8:52 pm

2 stops19h 07m

$485

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 5/13

6:50 pm-7:35 pm

1 stop15h 45m

Luxembourg

Tue 5/26

8:20 am-12:20 pm

1 stop13h 00m

$499

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 5/13

1:35 pm-8:20 pm

1 stop21h 45m

Luxembourg

Mon 5/25

9:05 pm-11:35 am

1 stop23h 30m

$505

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Wed 5/13

9:55 am-1:50 pm

2 stops18h 55m

Luxembourg

Tue 5/26

8:20 am-12:20 pm

1 stop13h 00m

$515

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 4/10

8:00 am-6:20 pm

2 stops25h 20m

Luxembourg

Fri 6/5

8:25 am-12:20 pm

1 stop12h 55m

$561

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 4/10

8:00 am-9:40 am

2 stops40h 40m

Luxembourg

Fri 6/5

10:30 am-7:37 pm

2 stops18h 07m

$566

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 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 January is also very affordable. Most momondo users find prices during this month for around $501.

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

Fastest flight time

15h 20m

Direct flights

None
The fastest flight from Seattle to Luxembourg takes 15h 20m
There are no direct flights from Seattle to Luxembourg. There are no popular flight routes from Seattle to Luxembourg.
Search flight deals

  • 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
SWISSPriceFrom $306Free CancellationRating
7.5
1,813 reviews
Search SWISS flights
British AirwaysPriceFrom $396Free CancellationRating
6.7
7,580 reviews
Search British Airways flights
Air FrancePriceFrom $449Free CancellationRating
7.4
1,506 reviews
Search Air France flights
DeltaPriceFrom $521Free CancellationRating
7.9
8,010 reviews
Search Delta flights
LufthansaPriceFrom $591Free CancellationRating
6.8
7,631 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.
Start using Trips
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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
British Airways
Delta
SWISS