$325 Find Cheap Flights from Seattle to Luxembourg - Compare and Save

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Price, demand and travel trends for Seattle to Luxembourg flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Seattle to Luxembourg right now?

The cheapest fare from Seattle to Luxembourg in the last week was $762 round-trip, to Luxembourg (LUX).

What’s the cheapest month to fly from Seattle to Luxembourg?

August is the cheapest time of year to fly, with average fares of $426. Prices are highest in May, when average flight costs increase to around $1,667.

Which airport in Luxembourg is the cheapest to fly to from Seattle?

All flights from Seattle to Luxembourg arrive at Luxembourg (LUX). On average, round-trip fares are around $693.

What’s the cheapest day to fly from Seattle to Luxembourg?

Tuesday tends to be the cheapest day to fly from Seattle to Luxembourg, while Saturday is the most expensive. Fares run about 58% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Seattle to Luxembourg?

Data from the past 12 months shows it's cheapest to fly to Luxembourg during the afternoon with average prices of $685. The evening is the most expensive time to fly, with average prices of $845.

Key details for Seattle to Luxembourg flights

Low season

October

Cheapest flight

$325
Beat the crowds with an average 46% drop in travelers.
One-way flight from Seattle to Luxembourg

Your Seattle to Luxembourg flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Seattle to Luxembourg?

    Fares from Seattle to Luxembourg are around their usual level right now. A round-trip under $497 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch price changes.

  • How much should I budget for a flight from Seattle to Luxembourg?

    Over the past 12 months, round-trip fares from Seattle to Luxembourg have ranged from $497 to $987.

  • What are the main airports serving Luxembourg?

    Flights to Luxembourg all arrive at Luxembourg (LUX).

  • What airlines fly nonstop from Seattle to Luxembourg?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Seattle to Luxembourg. One-stop options include British Airways and Lufthansa.

  • Which cabin classes are available on flights from Seattle to Luxembourg?

    On flights from Seattle to Luxembourg you can only book Economy Class.

  • What are some popular landmarks in Luxembourg?

    KAYAK travelers' favorite landmarks in Luxembourg include:

    • Place Guillaume II
    • Place de la Constitution
    • Luxembourg City Municipal Park
    • Abtei Neimënster

Your guide to booking Seattle to Luxembourg flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for August when flights are typically cheapest and avoid May when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Saturday cost about 58% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Luxembourg, which is the most popular destination in Luxembourg. From there, it's easy to continue on to other popular destinations such as Senningerberg, Clervaux and Esch-sur-Alzette.

Reviews of the top 3 airlines serving from Seattle to Luxembourg

 
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.
7.5
Air FranceOverall score based on 1650 reviews
7.5Boarding
7.1Food
7.0Entertainment
8.2Crew
7.4Comfort
Airline reviews

Our flight delayed, due to the incoming flight arriving late from Paris. AF caused us to miss our connecting flight, also booked through Air France directly. They couldn't accommodate us until later that night, and we had to be in AMS earlier than that. They won't do anything else to help us and wanted to charge us more money to rebook us too. Not great service, since it was all their fault.

2.0 MediocreMichael, Aug 2026
Read more Air France reviews

Our flight delayed, due to the incoming flight arriving late from Paris. AF caused us to miss our connecting flight, also booked through Air France directly. They couldn't accommodate us until later that night, and we had to be in AMS earlier than that. They won't do anything else to help us and wanted to charge us more money to rebook us too. Not great service, since it was all their fault.

Seats! The eternal problem in economy. They are like stones!!

Everything is good except the seats are tightened no rooms for the legs,

The plane's pilots, including the captain himself, thanked me for the flight. I know it's just marketing, but it was really nice to see these people. It's a great idea. Airplane food is never "good," but the entire crew and flight organization were top-notch. I really liked Delta, and I think I've traveled all over the world, and that was something new for me. Maybe even the old planes, the B767, but next time I have a choice, Delta will be my first choice. Thank you, a satisfied passenger :)

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

Premium economy was worth it. Great seats and good food.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

The flight was cancelled, so why are you asking me how the flight was?

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Biggest gripes were that the seats were extra narrow as the 4-in-the-middle taper down. As with most flight, too little leg room hurts my aging hips. Also changing the flight time to 3 hours earlier meant that we had a terribly long lay-over in one of the world's most boring airports

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Great! Great staff, great food, great flight :) Keep up the good work!!!

It was good. Nice entertainment selection to keep me busy for the timeframe I wasn't sleeping. Professional, courteous and attentive crew.

They lost my bags and I didn't get them for 4 days after. This also happened to about 30 other people on my flight from fra to MAA (I know bc we were all filing claims in line together from the same flight.)

Flight took off arrive Frankfurt fine ... and then the Pilot parked the plane for 20 minutes while waiting for a steps vehicle to arrive so we all could deplane. This caused us to miss our Naples flight by 6 minutes while running to the next gate.. We are aware of 3 others who also miss their flight. Lufthansa Support said "why miss your flight, your flight arrived on time?" We explained, they provided another flight many hrs later, no meal voucher because our "flight was ontime".

They help we received from the check in crew and boarding cr

Both flights were on time. Great selection of movies on board. My luggage didn't get lost, which made my trip very easy.

More options for your flight from Seattle to Luxembourg

Complete your trip to Luxembourg with a hotel stay or car rental