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Cheap flights from Seattle to Luxembourg from $330

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 9/6. 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
10:40 am - 6:40 pm
SEA
-
LUX
23h 00m
2 stops
Multiple Airlines Logo
6:05 am - 2:22 pm
LUX
-
SEA
17h 17m
2 stops
$673Multiple Airlines
Mon, Aug 10 - Tue, Aug 25
Multiple Airlines Logo
10:40 am - 6:40 pm
SEA
-
LUX
23h 00m
2 stops
Multiple Airlines Logo
6:05 am - 2:22 pm
LUX
-
SEA
17h 17m
2 stops
$677Multiple Airlines
Mon, Aug 10 - Tue, Aug 25
Lufthansa Logo
6:50 pm - 4:05 pm
SEA
-
LUX
12h 15m
1 stop
Lufthansa Logo
6:25 am - 2:22 pm
LUX
-
SEA
16h 57m
2 stops
$686Lufthansa
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
1:30 pm - 10:35 am
SEA
-
LUX
12h 05m
1 stop
Multiple Airlines Logo
6:00 am - 4:27 pm
LUX
-
SEA
19h 27m
1 stop
$689Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
1:30 pm - 1:50 pm
SEA
-
LUX
15h 20m
1 stop
Multiple Airlines Logo
6:00 am - 11:37 am
LUX
-
SEA
14h 37m
1 stop
$690Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
1:30 pm - 10:35 am
SEA
-
LUX
12h 05m
1 stop
Multiple Airlines Logo
6:00 am - 4:27 pm
LUX
-
SEA
19h 27m
1 stop
$692Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
10:40 am - 1:55 pm
SEA
-
LUX
18h 15m
2 stops
Multiple Airlines Logo
6:05 am - 11:55 am
LUX
-
SEA
14h 50m
1 stop
$694Multiple Airlines
Mon, Aug 10 - Tue, Aug 25
Multiple Airlines Logo
8:15 am - 10:20 am
SEA
-
LUX
17h 05m
2 stops
Multiple Airlines Logo
8:20 am - 11:55 am
LUX
-
SEA
12h 35m
1 stop
$695Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
SWISS Logo
10:40 am - 6:40 pm
SEA
-
LUX
23h 00m
2 stops
SWISS Logo
7:20 pm - 6:32 pm
LUX
-
SEA
32h 12m
2 stops
$696SWISS
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
12:50 pm - 4:05 pm
SEA
-
LUX
42h 15m
2 stops
Multiple Airlines Logo
6:25 am - 11:55 am
LUX
-
SEA
14h 30m
1 stop
$697Multiple Airlines
Mon, Aug 3 - 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 18
SEA6:50 pmSeattle/Tacoma Intl
12h 15m
1 stop
LUX4:05 pmLuxembourg
Aug 26
LUX8:20 amLuxembourg
24h 06m
3 stops
SEA11:26 pmSeattle/Tacoma Intl
$702
United Airlines
Aug 10
SEA7:00 amSeattle/Tacoma Intl
24h 05m
3 stops
LUX4:05 pmLuxembourg
Aug 25
LUX8:30 amLuxembourg
18h 12m
2 stops
SEA5:42 pmSeattle/Tacoma Intl
$707
United Airlines
Oct 6
SEA11:14 pmSeattle/Tacoma Intl
23h 31m
2 stops
LUX7:45 amLuxembourg
Oct 27
LUX9:30 amLuxembourg
21h 46m
3 stops
SEA11:16 pmSeattle/Tacoma Intl
$750

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
46h 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
LUX10:45 amLuxembourg
18h 14m
2 stops
SEA8:59 pmSeattle/Tacoma Intl
$732
Air Canada
Oct 6
SEA7:20 pmSeattle/Tacoma Intl
35h 45m
2 stops
LUX4:05 pmLuxembourg
Oct 27
LUX10:45 amLuxembourg
18h 14m
2 stops
SEA8:59 pmSeattle/Tacoma Intl
$733

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 July 6, 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

Mon 8/10

10:40 am-6:40 pm

2 stops23h 00m

Luxembourg

Tue 8/25

6:05 am-2:22 pm

2 stops17h 17m

$673

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/10

10:40 am-6:40 pm

2 stops23h 00m

Luxembourg

Tue 8/25

6:05 am-2:22 pm

2 stops17h 17m

$677
Quickest round-trip

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/18

6:50 pm-4:05 pm

1 stop12h 15m

Luxembourg

Wed 8/26

6:25 am-2:22 pm

2 stops16h 57m

$686

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/3

1:30 pm-10:35 am

1 stop12h 05m

Luxembourg

Wed 8/19

6:00 am-4:27 pm

1 stop19h 27m

$689

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Tue 8/18

1:30 pm-1:50 pm

1 stop15h 20m

Luxembourg

Wed 8/26

6:00 am-11:37 am

1 stop14h 37m

$690

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/3

1:30 pm-10:35 am

1 stop12h 05m

Luxembourg

Wed 8/19

6:00 am-4:27 pm

1 stop19h 27m

$692

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/10

10:40 am-1:55 pm

2 stops18h 15m

Luxembourg

Tue 8/25

6:05 am-11:55 am

1 stop14h 50m

$694

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/3

8:15 am-10:20 am

2 stops17h 05m

Luxembourg

Wed 8/19

8:20 am-11:55 am

1 stop12h 35m

$695

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/3

10:40 am-6:40 pm

2 stops23h 00m

Luxembourg

Wed 8/19

7:20 pm-6:32 pm

2 stops32h 12m

$696

SeattleLuxembourg

SEA - LUX

SEALUX

Seattle/Tacoma Intl

Mon 8/3

12:50 pm-4:05 pm

2 stops42h 15m

Luxembourg

Wed 8/19

6:25 am-11:55 am

1 stop14h 30m

$697

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 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 December is also very affordable. Most momondo users find prices during this month for around $425.

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 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

  • 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
Air FrancePriceFrom $456Free CancellationRating
7.5
1,620 reviews
Search Air France flights
United AirlinesPriceFrom $471Free CancellationRating
7.4
9,940 reviews
Search United Airlines flights
LufthansaPriceFrom $490Free CancellationRating
6.8
8,116 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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