Cheap Flights from Sofia to Istanbul from €40

Frequently Asked Questions

• What are the cheapest flights from Sofia to Istanbul (SOF-IST)?

  Based on Trip.com data, Pegasus Airlines offers one-way fares as low as €40 on Cheapest nonstop routes (e.g. SOF to SAW on Sat, Nov 21), while Pegasus Airlines offers Cheapest nonstop round-trips from €79 departing on Fri, Dec 11 and returning on Tue, Dec 15.

• Which airlines offer direct 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.

• How long does it take to fly from Sofia (SOF) to Istanbul (IST) and what is the distance?

  It takes around 1 hour 27 minutes to fly from Sofia (SOF) to Istanbul (IST).

• When is the best time to book flights 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.

• How many flights are there per week from Sofia to Istanbul?

  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 (09:47)

• How can I find the best deals on flights from Sofia to Istanbul?

  To find best deals on flights from Sofia to Istanbul, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Nov 21, with one-way flights priced at just €40.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Pegasus Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Istanbul travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Sofia (SOF) to Istanbul (IST) the cheapest?

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

• Which upcoming date is cheapest to fly from Sofia to Istanbul on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Sofia to Istanbul on October 31, 2026 with Pegasus Airlines, with prices starting at €53.

• Which airports can I fly into Istanbul from Sofia?

  You can arrive at any of the following airports in Istanbul: Istanbul Airport (IST), Sabiha Gökçen International Airport (SAW), and Ataturk Airport (ISL). Flights from Sofia Airport to Istanbul Airport (SOF-IST) are by far the most popular option for this route.

• Is there any time difference between Sofia and Istanbul?

  The time difference between Istanbul and Sofia is 1h.

• How do I change or cancel my ticket from Sofia to Istanbul?

  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.

• What is the average cost of a one-way flight from Sofia to Istanbul?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Sofia to Istanbul is €172. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Sofia to Istanbul?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Sofia to Istanbul is €175. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Sofia to Istanbul on Trip.com?

  Enter Sofia and Istanbul, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Sofia to Istanbul route?

  Pegasus Airlinesare the most popular budget airlines flying from Sofia to Istanbul. Check baggage, seat and payment fees before comparing the final price.