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Cheap flights from Seattle to Luxembourg from $446

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 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 pmSEA-LUX
16h 10m1 stop
Lufthansa Logo
6:15 am - 12:20 pmLUX-SEA
15h 05m1 stop
$467Lufthansa
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Sun, Mar 1 - Wed, May 13
Air Canada Logo
5:50 am - 4:20 pmSEA-LUX
25h 30m2 stops
Air Canada Logo
6:15 am - 6:36 pmLUX-SEA
21h 21m2 stops
$471Air Canada
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Sun, Mar 1 - Wed, May 13
Multiple Airlines Logo
5:50 am - 4:20 pmSEA-LUX
25h 30m2 stops
Multiple Airlines Logo
6:15 am - 12:20 pmLUX-SEA
15h 05m1 stop
$472Multiple Airlines
Find Deal
Sun, Mar 1 - Wed, May 13
Multiple Airlines Logo
10:10 am - 7:35 pmSEA-LUX
24h 25m2 stops
Multiple Airlines Logo
8:10 pm - 7:18 pmLUX-SEA
32h 08m2 stops
$524Multiple Airlines
Find Deal
Mon, Apr 13 - Sun, Apr 19
British Airways Logo
7:50 pm - 9:10 pmSEA-LUX
17h 20m1 stop
British Airways Logo
10:05 pm - 11:35 amLUX-SEA
22h 30m1 stop
$525British Airways
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Thu, Mar 19 - Tue, Mar 31
KLM Logo
5:35 pm - 5:55 pmSEA-LUX
15h 20m1 stop
KLM Logo
6:05 pm - 11:35 amLUX-SEA
26h 30m1 stop
$527KLM
Find Deal
Mon, Apr 13 - Sun, Apr 19
British Airways Logo
7:00 am - 10:40 amSEA-LUX
18h 40m2 stops
British Airways Logo
9:20 pm - 11:35 amLUX-SEA
23h 15m1 stop
$530British Airways
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Mon, Apr 13 - Sun, Apr 19
United Airlines Logo
9:19 am - 4:20 pmSEA-LUX
23h 01m2 stops
United Airlines Logo
9:40 am - 11:21 pmLUX-SEA
22h 41m3 stops
$539United Airlines
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Thu, Mar 19 - Tue, Mar 31
United Airlines Logo
2:47 pm - 7:35 pmSEA-LUX
19h 48m2 stops
United Airlines Logo
8:25 am - 7:12 pmLUX-SEA
67h 47m3 stops
$567United Airlines
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Mon, Apr 13 - Sun, Apr 19
KLM Logo
2:05 pm - 5:35 pmSEA-LUX
18h 30m1 stop
KLM Logo
6:05 pm - 11:35 amLUX-SEA
26h 30m1 stop
$677KLM
Find Deal
Sat, Apr 11 - Sun, Apr 19

Lufthansa flights from Seattle to Luxembourg

Our best Lufthansa deals on Seattle to Luxembourg flight tickets
Lufthansa
Mar 1
SEA3:10 pmSeattle/Tacoma Intl
16h 10m
1 stop
LUX4:20 pmLuxembourg
May 13
LUX6:15 amLuxembourg
15h 05m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$467
Find similar
Lufthansa
Mar 1
SEA3:10 pmSeattle/Tacoma Intl
16h 10m
1 stop
LUX4:20 pmLuxembourg
May 13
LUX10:45 amLuxembourg
35h 16m
2 stops
SEA1:01 pmSeattle/Tacoma Intl
$477
Find similar
Lufthansa
Jan 7
SEA3:10 pmSeattle/Tacoma Intl
16h 10m
1 stop
LUX4:20 pmLuxembourg
Jan 15
LUX10:50 amLuxembourg
19h 07m
2 stops
SEA8:57 pmSeattle/Tacoma Intl
$481
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Air Canada flights from Seattle to Luxembourg

Our best Air Canada deals on Seattle to Luxembourg flight tickets
Air Canada
Mar 1
SEA5:50 amSeattle/Tacoma Intl
25h 30m
2 stops
LUX4:20 pmLuxembourg
May 13
LUX6:15 amLuxembourg
21h 21m
2 stops
SEA6:36 pmSeattle/Tacoma Intl
$471
Find similar
Air Canada
Apr 11
SEA8:00 pmSeattle/Tacoma Intl
35h 10m
2 stops
LUX4:10 pmLuxembourg
Apr 19
LUX8:25 amLuxembourg
22h 43m
2 stops
SEA10:08 pmSeattle/Tacoma Intl
$522
Find similar
Air Canada
Jan 7
SEA8:00 pmSeattle/Tacoma Intl
32h 55m
2 stops
LUX1:55 pmLuxembourg
Jan 15
LUX10:25 amLuxembourg
20h 41m
3 stops
SEA10:06 pmSeattle/Tacoma Intl
$692
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 October 31, 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

$467

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/1

5:50 am-4:20 pm

2 stops25h 30m

Luxembourg

Wed 5/13

6:15 am-6:36 pm

2 stops21h 21m

$471

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sun 3/1

5:50 am-4:20 pm

2 stops25h 30m

Luxembourg

Wed 5/13

6:15 am-12:20 pm

1 stop15h 05m

$472

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 4/13

10:10 am-7:35 pm

2 stops24h 25m

Luxembourg

Sun 4/19

8:10 pm-7:18 pm

2 stops32h 08m

$524

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 3/19

7:50 pm-9:10 pm

1 stop17h 20m

Luxembourg

Tue 3/31

10:05 pm-11:35 am

1 stop22h 30m

$525

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 4/13

5:35 pm-5:55 pm

1 stop15h 20m

Luxembourg

Sun 4/19

6:05 pm-11:35 am

1 stop26h 30m

$527

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 4/13

7:00 am-10:40 am

2 stops18h 40m

Luxembourg

Sun 4/19

9:20 pm-11:35 am

1 stop23h 15m

$530

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Thu 3/19

9:19 am-4:20 pm

2 stops23h 01m

Luxembourg

Tue 3/31

9:40 am-11:21 pm

3 stops22h 41m

$539

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 4/13

2:47 pm-7:35 pm

2 stops19h 48m

Luxembourg

Sun 4/19

8:25 am-7:12 pm

3 stops67h 47m

$567

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Sat 4/11

2:05 pm-5:35 pm

1 stop18h 30m

Luxembourg

Sun 4/19

6:05 pm-11:35 am

1 stop26h 30m

$677

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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.

Cheap Seattle to Luxembourg 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.
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
7.5
1,775 reviews
Search SWISS flights
British AirwaysPriceFrom $396Free CancellationRating
6.7
7,488 reviews
Search British Airways flights
Air FrancePriceFrom $449Free CancellationRating
7.4
1,482 reviews
Search Air France flights
DeltaPriceFrom $496Free CancellationRating
7.9
7,998 reviews
Search Delta flights
LufthansaPriceFrom $591Free CancellationRating
6.8
7,542 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.

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