$342 Cheap KLM flights Sofia (SOF) to Luxembourg (LUX)

View $342 flight on Wed, Oct 1, 2025Opens in a new window

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$342 Cheap KLM flights Sofia (SOF) to Luxembourg (LUX)

Prices were available within the past 7 days and start at $342 for one-way flights and $640 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Thu, Jan 29 - Sat, Jan 31
SOF
Sofia
LUX
Luxembourg
$640 Roundtrip, found 7 hours ago
$640
Roundtrip
found 7 hours ago
Select KLM flight, departing Thu, Jan 29 from Sofia to Luxembourg, returning Sat, Jan 31, priced at $640 found 7 hours ago
Flights from Sofia (SOF) to Luxembourg (LUX)
Origin airport
Sofia
Destination airport
Findel
Distance
948 mi

Frequently asked questions

How much is a KLM flight from Sofia Airport (SOF) to Findel Airport (LUX)?
Scoring cheap one-way KLM flights from SOF to LUX from $342 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $640 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SOF to LUX with KLM?
Search for round-trip or one-way flights to Luxembourg City in February or January. You could find an affordable fare with KLM during these quieter months.
What is the cheapest time to book flights from Sofia Airport (SOF) to Findel Airport (LUX) with KLM?
To grab cheap flights from SOF to LUX with KLM, start your search about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does KLM fly nonstop from Sofia Airport (SOF) to Findel Airport (LUX)?
To find out if there's a direct journey from SOF to LUX with KLM or other carriers, check the "Nonstop" filter when looking for flights.
What is the earliest KLM flight from SOF to LUX?
Sort your results by "Morning" and "Early Morning" to find the earliest departures from SOF to LUX. Taking off early means you're 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does KLM fly into in Luxembourg City?
Get on a KLM flight from Sofia Airport (SOF) to Luxembourg City, and you'll likely come in to Findel Airport (LUX). This is the airline's primary hub in this destination.
Why fly with KLM from SOF to LUX?
A 4-star airline rating and the ability to collect points through KLM Flying Blue are the start of the reasons to jet off from SOF to LUX with KLM. Plus, when you join our One Key™ program, you can earn OneKeyCash™* on top of any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my KLM flight from Sofia Airport (SOF) to Findel Airport (LUX)?
Depending on the type of ticket you purchased, a fee is typically charged if you modify or cancel your booking more than 24 hours after it's confirmed. To secure plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when searching for flights. To learn more about modifying or canceling your reservation, visit "Trips," select your flight and click on "Manage Booking."
*Available to One Key members.