SEA - LUX

$329 Find Cheap Flights from Seattle to Luxembourg

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Luxembourg departing on 6/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Luxembourg

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Luxembourg, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Luxembourg, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$688
Typical prices: $471-$396
British Airways
Tue 8/4Wed 8/19
SEA - LUX • 1 stop
Cheapest one-way
$329
Multiple Airlines
Mon 6/15
SEA - LUX • 3 stops
Top airlines
Cheapest • from $688 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Luxembourg. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $690 (round-trip)
Shortest trip • 12h 37m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Luxembourg!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Luxembourg (SEA-LUX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Luxembourg that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Luxembourg

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
$688British Airways
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
6:50 pm - 4:10 pm
SEA
-
LUX
12h 20m
1 stop
Multiple Airlines Logo
10:15 am - 6:32 pm
LUX
-
SEA
17h 17m
2 stops
$689Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
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 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
British Airways Logo
6:00 am - 10:40 am
SEA
-
LUX
19h 40m
2 stops
British Airways Logo
9:35 pm - 11:35 am
LUX
-
SEA
23h 00m
1 stop
$701British Airways
Tue, Aug 18 - Wed, Aug 26
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
United Airlines Logo
6:50 pm - 4:10 pm
SEA
-
LUX
12h 20m
1 stop
United Airlines Logo
8:20 am - 11:24 pm
LUX
-
SEA
24h 04m
3 stops
$704United Airlines
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 4 - Wed, Aug 19
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
Booking Insights

KAYAK's insights & trends for Seattle to Luxembourg flights

Get data-powered insights and trends into flights from Seattle to Luxembourg to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Luxembourg?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Luxembourg departing in August.

What is the cheapest month to fly from Seattle to Luxembourg?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Luxembourg, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Luxembourg is August, where tickets cost $441 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $1,040 and $922 respectively.

Good to know

Low seasonFebruary
Cheapest flight$329
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 34% lower on average.
Flight from Seattle to Luxembourg

When to book flights from Seattle to Luxembourg

Are your dates flexible? Find out the best times to travel from Seattle to Luxembourg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Luxembourg

  • What is the cheapest flight from Seattle to Luxembourg?

    In the last 3 days, the lowest price for a flight from Seattle to Luxembourg was $329 for a one-way ticket and $688 for a round-trip.

  • Do I need a passport to fly between Seattle and Luxembourg?

    Yes, you’ll need a passport to travel to Luxembourg from Seattle.

  • Which aircraft models fly most regularly from Seattle to Luxembourg?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Luxembourg?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Luxembourg, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Luxembourg, Air France or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Luxembourg are Air France and United Airlines. With an average price for the route of $695 and an overall rating of 7.4, Air France is the most popular choice. United Airlines is also a great choice for the route, with an average price of $592 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Luxembourg?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Luxembourg.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Luxembourg?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Luxembourg from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Luxembourg?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Luxembourg with an airline and back to Seattle with another airline. Booking your flights between Seattle and LUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Luxembourg?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Luxembourg from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Seattle to Luxembourg

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Luxembourg. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Luxembourg? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Air FranceOverall score based on 1580 reviews
7.0Food
8.1Crew
7.5Boarding
7.4Comfort
7.0Entertainment
Airline reviews

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

2.0 MediocreLorie, Apr 2026
CDG - LAX
Read more Air France reviews

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

They lost my bag and I still haven’t received it yet

They lost my bag and I still have not received it

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Not consistent with the food quality (I mean taste not freshness)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

1st class seats NOT REALLY 1st class or business class but like premier economy. Should be listed as such or named something else. I have flown 1st class with other airlines and they are nothing like it at all.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Worst airline in the world. They downgraded me from business class to economy with no compensation.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Even if you wait for connecting passengers you should not be an hour late departing waiting their luggage. Your passengers may have connections in the other end and you harm them.

Everything you need to know for your flight from Seattle to Luxembourg

Information on your arrival and departure airports