Find Turkish Airlines(TK) flights from Sofia to Istanbul

At the moment, you can catch a nonstop flight from Sofia to Istanbul with the following airlines, including: Turkish Airlines Pegasus Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 1 hour 27 minutes to fly from Sofia to Istanbul.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Sofia to Istanbul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 29 flight per week flying from Sofia to Istanbul. You can check the weekly schedule for popular airlines on this route below: Turkish Airlines: S/M/T/W/T/F/S -- TK1028 (09:40)

The cheapest months to fly from Sofia to Istanbul is November, when demand for travel is lower.

After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Sofia to Istanbul on September 26, 2026 with Pegasus Airlines, with prices starting at US$58.

You can land at any one of the following hubs in Istanbul: Ataturk Airport (ISL), Istanbul Airport (IST), and Sabiha Gökçen International Airport (SAW). Flying from Sofia Airport to Istanbul Airport (SOF-IST) is by far the most common option on this route.

The time difference between Istanbul and Sofia is 1h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.