Cheap Flights from Istanbul (ISL) to Sofia (SOF)

Popular airlines from Ataturk Intl. Airport (ISL) to Sofia Airport (SOF)

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Flights from Istanbul (ISL) to Sofia (SOF)
Origin airport
Ataturk Intl.
Destination airport
Sofia
Distance
302 mi

Istanbul to Sofia Flights

The cheapest times to fly from Istanbul 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 Istanbul to Sofia are during the month of . You can find some of the cheapest flights from Istanbul to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Istanbul to Sofia

Sunday is one of the best days to book for cheap flights from Istanbul 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 Istanbul 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 Istanbul to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Istanbul 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 Istanbul 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.

 

Frequently asked questions

How much does a flight from Ataturk Intl. Airport (IST) to Sofia Airport (SOF) cost?
Discover the latest flight deals from ISL to SOF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ISL to SOF?
The cheapest flights from ISL to SOF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
Jump on a nonstop flight with Turkish Airlines and travel straight from Ataturk Intl. Airport (IST) to Sofia Airport (SOF).
What is the cheapest airline that flies from ISL to SOF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ISL to SOF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
With, on average, 3 nonstop flights that operate from Ataturk Intl. Airport (IST) to Sofia Airport (SOF) daily, you'll be off on your next adventure in no time.
What are the most popular departure times for flights from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
Flights between ISL and SOF tend to be busiest at 8 PM. For a more relaxed atmosphere and possibly cheaper fares, choose a time when demand is lower.
What day of the week has the most flights from ISL to SOF?
Monday has the most flights from Ataturk Intl. Airport (IST) to Sofia Airport (SOF). Consider leaving on this day and you'll have the best chance of finding a departure that works with your plans.
What is the earliest flight from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
The first flight of the day out of Ataturk Intl. Airport (IST) is at around 8:35AM UTC+3. Catch this flight and you'll touch down at Sofia Airport (SOF) at approximately 8:55AM UTC+2. The total time in the air is 1h 20m.
How long does it take to fly from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
The average flight duration from ISL to SOF is 1 hour and 20 minutes, covering a total distance of 300 mi.
What is the best time to fly from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
To avoid possible delays on the Ataturk Intl. Airport (IST) to Sofia Airport (SOF) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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.
What airports do you fly into for Sofia from Ataturk Intl. Airport (IST)?
Sofia Airport (SOF) is the only airport in Sofia with direct flights from Ataturk Intl. Airport (IST). Compare the options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Ataturk Intl. Airport (IST) to Sofia Airport (SOF) last-minute?
Holding off until just before your trip to book a flight from ISL to SOF often results in higher prices. While you might find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of getting a bargain.
Is it cheaper to book an ISL to SOF flight and hotel package?
Booking an ISL to SOF flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ataturk Intl. Airport (IST) to Sofia Airport (SOF)?
If you booked your ISL to SOF flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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