389 € Cheap Flights from Seattle to Luxembourg

Compare Seattle to Luxembourg flight deals

Find the cheapest month or even day of the year to fly to Luxembourg

Book the best Luxembourg fare with no extra fees

Flight deals from Seattle to Luxembourg

Looking for a cheap last-minute deal or the best return flight from Seattle to Luxembourg? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Luxembourg

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Luxembourg flights are currently cheapest in November.

Direct flights from Seattle to Luxembourg

Seattle to Luxembourg: Alternative routes

Compare routes from Seattle to Luxembourg below. You may find an airport to fly into that's cheaper, faster, or easier than Luxembourg.

Seattle to Luxembourg: Flight information

The things to know before you go.
Cheapest flight found389 €
Cheapest month to flyNovember
Average flight time10 hrs
Most popular airlineCargolux
Average flights per week2

Finding cheap flights from Seattle to Luxembourg: Frequently asked questions

The best price we found for a return flight from Seattle to Luxembourg is 389 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
10 hours is the average flight time from Seattle to Luxembourg.
Cargolux flies direct from Seattle to Luxembourg.
As of July 2025, there are 2 flights per week flying from Seattle to Luxembourg.
The cheapest month to fly from Seattle to Luxembourg is usually November.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Luxembourg Airport on Wednesday, 5 November 2025.
Yes – the average flight time is 10 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Luxembourg but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Luxembourg is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Luxembourg is British Airways .

Flying from Seattle to Luxembourg Airport (LUX): What you need to know

  • There are a couple of main airports to choose from in Seattle. Explore your options departing from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE) when reserving your flight from Seattle to Luxembourg Airport (LUX).

  • The timezone in Luxembourg is UTC+1, which is eight hours ahead of Seattle. Luxembourg Airport is located in Luxembourg.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to catch your flight from Seattle to LUX.

  • During peak travel periods, allow for longer queues and show up earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • We make it a piece of cake to find cheap flights from Seattle to LUX with a stopover. To explore all your options departing from Seattle-Tacoma International Airport (SEA), uncheck 'Direct flights only.' Next, choose a flight offering a stop long enough to tour the city of your choice. Popular stopovers between SEA and LUX include:

    • London Heathrow Airport (LHR)

    • Frankfurt Airport (FRA)

    • Charles de Gaulle Airport (CDG)

  • SEA is about 23 kilometres from central Seattle. If you're catching a cab, driving or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 55 minutes.

  • Searching for a convenient hotel near Seattle-Tacoma International Airport? If you're catching an early flight from Seattle to Luxembourg Airport, these stays will have you sleeping moments from your departure lounge:

  • 81.27% of flights leaving Seattle-Tacoma International Airport touch down at their destination on schedule. Given its dependable on-time performance, disruptions are unlikely when flying out of SEA.

Lake Union Sea Plane Base Airport (LKE)

  • With public transport, you can travel from central Seattle to LKE in about 25 minutes. The terminal is roughly 3 kilometres away, and getting there by car takes approximately 10 minutes.

  • Want to treat yourself to an extra night away before your Seattle to LUX flight? Check in to a hotel near Lake Union Sea Plane Base Airport before your adventure officially begins. These stays are calling your name:

About Luxembourg Airport (LUX)

  • The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from Seattle to Luxembourg Airport. Get comfy at one of these accommodation options near LUX instead:

  • Grab a Luxembourg Airport rental car and explore Luxembourg and beyond with your own set of wheels. Keddy By Europcar, Alamo and Europcar are leading providers to choose from here.

  • Lock in the best deal by booking your ride around three weeks ahead of your Seattle to Luxembourg Airport flight.

Getting from Luxembourg Airport (LUX) to central Luxembourg

  • Luxembourg Airport is roughly 6 kilometres from central Luxembourg. The time it takes to get there in a cab or car hire will depend on the time of day. Do some research before you go.

  • When travelling by public transport, expect a journey time of around 30 minutes.

How to find the cheapest flights from Seattle to Luxembourg Airport (LUX)

  • Right now, 302 € is the best price we've found for a one-way ticket from Seattle to Luxembourg Airport. The cheapest price for a return flight is 389 €. Keep in mind fares may change due to demand at the time of booking.

  • To pick up cheap flights from Seattle to LUX, book ahead. Airlines typically offer the most competitive fares when tickets are first released.

  • If you have some flexibility with your travel dates, try using the 'Whole month' search tool. It'll show you the cheapest price across the month when searching for your Seattle to Luxembourg Airport ticket.

  • Snapping up a cheap plane ticket from Seattle to LUX couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as prices go down.

  • Filters make it easier to snap up a deal on your flight from Seattle to Luxembourg Airport. Choose the departure times, carriers and stops that make sense for you. Then sort the results by 'Cheapest' to zero in on the cheapest fare fast.

The best time to fly from Seattle to Luxembourg Airport (LUX)

  • February is the quietest month for flights from Seattle to Luxembourg Airport (LUX), while July is the busiest. Work out the best time to visit Luxembourg based on whether you like a laid-back vibe or a more bustling atmosphere.

  • When booking your Seattle to LUX plane ticket, consider what kind of weather you prefer. July is the warmest month in Luxembourg, with temperatures ranging from 9ºC (48ºF) to 26ºC (79ºF).

  • If you want cooler conditions, look for a cheap ticket from Seattle to Luxembourg Airport in January when temperatures are between -4ºC (25ºF) and 6ºC (43ºF).

More about Luxembourg

  • Start your Luxembourg trip right by choosing the ideal place to stay. After booking your flight from Seattle to Luxembourg Airport, browse our selection of hotels including:

  • There are so many things to discover in this city, it can be tricky to know where to start. Notre Dame Cathedral (Cathedrale Notre Dame), Luxembourg American Cemetery and Grand Ducal Palace are popular attractions which should be on any well-planned Luxembourg itinerary.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.