$170 Cheap Flights from Cluj-Napoca (CLJ) to Sofia (SOF)

View $170 flight on Sun, Dec 7, 2025Opens in a new window

Popular airlines from Cluj-Napoca (CLJ) to Sofia Airport (SOF)

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Cheap Flights from Cluj-Napoca to Sofia (CLJ-SOF)

Prices were available within the past 7 days and start at $170 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $197 found 1 day ago
Lufthansa
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$215 Roundtrip, found 1 day ago
$215
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $215 found 1 day ago
Lufthansa
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$216 Roundtrip, found 1 day ago
$216
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $216 found 1 day ago
Lufthansa
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$219 Roundtrip, found 1 day ago
$219
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $219 found 1 day ago
Lufthansa
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$233 Roundtrip, found 1 day ago
$233
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $233 found 1 day ago
Lufthansa
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $234 found 1 day ago
Turkish Airlines
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$359 Roundtrip, found 1 day ago
$359
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $359 found 1 day ago
Tarom-Romanian Air Transport
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$421 Roundtrip, found 1 day ago
$421
Roundtrip
found 1 day ago
Select Tarom-Romanian Air Transport flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $421 found 1 day ago
Air Serbia
Thu, Nov 20 - Thu, Nov 27
CLJ
Cluj-Napoca
SOF
Sofia
$470 Roundtrip, found 3 days ago
$470
Roundtrip
found 3 days ago
Select Air Serbia flight, departing Thu, Nov 20 from Cluj-Napoca to Sofia, returning Thu, Nov 27, priced at $470 found 3 days ago
LOT-Polish Airlines
Wed, Aug 5 - Wed, Aug 12
CLJ
Cluj-Napoca
SOF
Sofia
$470 Roundtrip, found 1 day ago
$470
Roundtrip
found 1 day ago
Select LOT-Polish Airlines flight, departing Wed, Aug 5 from Cluj-Napoca to Sofia, returning Wed, Aug 12, priced at $470 found 1 day ago

Frequently asked questions

How much does a flight from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF) cost?
Lock in a cheap one-way flight from $170 or cheap return flight from $197 from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF)?
The cheapest month to fly from CLJ to SOF is August, when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF)?
To find the cheapest airline flying from CLJ to SOF, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF)?
You'll need to catch a flight with a layover if you're traveling from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from CLJ to SOF?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF)?
To touch down at Sofia Airport (SOF) on schedule, select a flight that takes off from Cluj-Napoca Airport (CLJ) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF) last-minute?
Waiting until just before your departure to book your flight from CLJ to SOF often results in higher prices. Although you may find some last-minute deals, there's no guarantee. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a CLJ to SOF flight and hotel package?
You'll generally save money by booking a CLJ to SOF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your preferred flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Cluj-Napoca Airport (CLJ) to Sofia Airport (SOF)?
Generally, it's possible to cancel or reschedule your CLJ to SOF flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Cluj-Napoca
Destination airport
Sofia
Roundtrip price
$197
Distance
283 mi

Book with confidence

Cluj-Napoca to Sofia Flights

The cheapest times to fly from Cluj-Napoca to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cluj-Napoca to Sofia are during the month of August. You can find some of the cheapest flights from Cluj-Napoca to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cluj-Napoca to Sofia

Sunday is one of the best days to book for cheap flights from Cluj-Napoca to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cluj-Napoca to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cluj-Napoca to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $170 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cluj-Napoca to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cluj-Napoca to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Cluj-Napoca to Sofia Flights

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*Available to One Key members.