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Cheap flights from Seattle to Luxembourg from $427

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 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
6:50 pm - 4:10 pm
SEA
-
LUX
12h 20m
1 stop
Lufthansa Logo
9:40 am - 4:59 pm
LUX
-
SEA
16h 19m
1 stop
$474Lufthansa
Tue, Aug 4 - Wed, Aug 19
Lufthansa Logo
6:50 pm - 4:10 pm
SEA
-
LUX
12h 20m
1 stop
Lufthansa Logo
9:40 am - 4:59 pm
LUX
-
SEA
16h 19m
1 stop
$475Lufthansa
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
6:40 pm - 10:35 am
SEA
-
LUX
30h 55m
1 stop
Multiple Airlines Logo
6:05 pm - 4:30 pm
LUX
-
SEA
31h 25m
1 stop
$480Multiple Airlines
Sun, Mar 29 - Sun, Apr 5
United Airlines Logo
7:05 am - 4:10 pm
SEA
-
LUX
24h 05m
3 stops
United Airlines Logo
9:40 am - 4:59 pm
LUX
-
SEA
16h 19m
1 stop
$481United Airlines
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
6:50 pm - 4:10 pm
SEA
-
LUX
12h 20m
1 stop
Multiple Airlines Logo
6:25 am - 10:37 am
LUX
-
SEA
37h 12m
2 stops
$482Multiple Airlines
Tue, Aug 4 - Wed, Aug 19
United Airlines Logo
7:05 am - 4:10 pm
SEA
-
LUX
24h 05m
3 stops
United Airlines Logo
8:20 am - 8:50 pm
LUX
-
SEA
21h 30m
2 stops
$489United Airlines
Tue, Aug 4 - Wed, Aug 19
American Airlines Logo
3:34 pm - 7:45 pm
SEA
-
LUX
19h 11m
2 stops
American Airlines Logo
11:35 am - 11:16 pm
LUX
-
SEA
20h 41m
2 stops
$490American Airlines
Tue, Aug 4 - Wed, Aug 19
United Airlines Logo
10:50 am - 4:10 pm
SEA
-
LUX
44h 20m
3 stops
United Airlines Logo
8:20 am - 6:33 pm
LUX
-
SEA
19h 13m
2 stops
$500United Airlines
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
8:00 am - 10:15 am
SEA
-
LUX
18h 15m
2 stops
Multiple Airlines Logo
6:15 am - 12:20 pm
LUX
-
SEA
15h 05m
1 stop
$523Multiple Airlines
Fri, Mar 27 - Fri, Apr 3
United Airlines Logo
6:50 pm - 7:30 pm
SEA
-
LUX
15h 40m
1 stop
United Airlines Logo
9:35 am - 9:53 pm
LUX
-
SEA
21h 18m
2 stops
$535United Airlines
Sun, Mar 29 - Sun, Apr 5

Air Canada flights from Seattle to Luxembourg

Our best Air Canada deals on Seattle to Luxembourg flight tickets
Air Canada
Mar 4
SEA8:00 amSeattle/Tacoma Intl
41h 05m
2 stops
LUX10:05 amLuxembourg
Mar 8
LUX7:10 amLuxembourg
20h 06m
2 stops
SEA6:16 pmSeattle/Tacoma Intl
$634
Air Canada
Mar 4
SEA8:00 amSeattle/Tacoma Intl
21h 00m
2 stops
LUX2:00 pmLuxembourg
Mar 8
LUX7:10 amLuxembourg
20h 06m
2 stops
SEA6:16 pmSeattle/Tacoma Intl
$635

Delta flights from Seattle to Luxembourg

Our best Delta deals on Seattle to Luxembourg flight tickets
Delta
Mar 1
SEA7:10 amSeattle/Tacoma Intl
22h 05m
2 stops
LUX2:15 pmLuxembourg
May 13
LUX6:00 amLuxembourg
19h 30m
1 stop
SEA4:30 pmSeattle/Tacoma Intl
$582
Delta
Mar 1
SEA7:10 amSeattle/Tacoma Intl
22h 05m
2 stops
LUX2:15 pmLuxembourg
May 13
LUX6:00 amLuxembourg
14h 42m
1 stop
SEA11:42 amSeattle/Tacoma Intl
$583
Delta
Mar 1
SEA7:10 amSeattle/Tacoma Intl
18h 15m
2 stops
LUX10:25 amLuxembourg
May 13
LUX6:00 amLuxembourg
19h 48m
2 stops
SEA4:48 pmSeattle/Tacoma Intl
$593

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 February 13, 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

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

6:50 pm-4:10 pm

1 stop12h 20m

Luxembourg

Wed 8/19

9:40 am-4:59 pm

1 stop16h 19m

$474

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

6:50 pm-4:10 pm

1 stop12h 20m

Luxembourg

Wed 8/19

9:40 am-4:59 pm

1 stop16h 19m

$475

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/29

6:40 pm-10:35 am

1 stop30h 55m

Luxembourg

Sun 4/5

6:05 pm-4:30 pm

1 stop31h 25m

$480

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

7:05 am-4:10 pm

3 stops24h 05m

Luxembourg

Wed 8/19

9:40 am-4:59 pm

1 stop16h 19m

$481

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

6:50 pm-4:10 pm

1 stop12h 20m

Luxembourg

Wed 8/19

6:25 am-10:37 am

2 stops37h 12m

$482

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

7:05 am-4:10 pm

3 stops24h 05m

Luxembourg

Wed 8/19

8:20 am-8:50 pm

2 stops21h 30m

$489

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

3:34 pm-7:45 pm

2 stops19h 11m

Luxembourg

Wed 8/19

11:35 am-11:16 pm

2 stops20h 41m

$490

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/4

10:50 am-4:10 pm

3 stops44h 20m

Luxembourg

Wed 8/19

8:20 am-6:33 pm

2 stops19h 13m

$500

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Fri 3/27

8:00 am-10:15 am

2 stops18h 15m

Luxembourg

Fri 4/3

6:15 am-12:20 pm

1 stop15h 05m

$523

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/29

6:50 pm-7:30 pm

1 stop15h 40m

Luxembourg

Sun 4/5

9:35 am-9:53 pm

2 stops21h 18m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 $477.

Cheap Seattle to Luxembourg flight deals and tips

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

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Seattle to Luxembourg takes 12h 20m
There are no direct flights from Seattle to Luxembourg. There are no popular flight routes from Seattle to Luxembourg.
Search flight deals

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

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

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

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

    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.

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

    The travel and health documents you'll need for your trip to Luxembourg 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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
7.6
1,870 reviews
Search SWISS flights
British AirwaysPriceFrom $396Free CancellationRating
6.7
7,737 reviews
Search British Airways flights
Air FrancePriceFrom $449Free CancellationRating
7.4
1,532 reviews
Search Air France flights
LufthansaPriceFrom $591Free CancellationRating
6.8
7,780 reviews
Search Lufthansa flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Luxembourg from Seattle.

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

Yes. momondo allows you to filter the results for Seattle to Luxembourg flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Seattle and Luxembourg by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Luxembourg from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Luxembourg trip

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Sun 3/15
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