Cheap Flights from Istanbul to Sofia from € 43

Frequently Asked Questions

• Which airlines offer the cheapest flights from Istanbul to Sofia?

  Based on Trip.com data, Pegasus Airlines offers Cheapest nonstop one-way flights from € 43 (for example, SAW–SOF on Sun, Nov 15). For a Cheapest nonstop return flight, Pegasus Airlines offers fares from € 101, departing on Thu, Dec 3 and returning on Sun, Dec 6.

• Which airlines offer direct flights from Istanbul to Sofia?

  At the moment, you can catch a direct flight from Istanbul to Sofia 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 is a flight from Istanbul (IST) to Sofia (SOF)?

  It takes about 1 hour 18 minutes to fly from Istanbul (IST) to Sofia (SOF).

• When is the best time to book flights from Istanbul to Sofia?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Istanbul to Sofia 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 from Istanbul to Sofia each week?

  On average, 30 direct flights operate each week between Istanbul and Sofia. See below the schedules of the main airlines serving this route:
  Turkish Airlines: S/M/T/W/T/F/S – TK1031 (departure at 14:57) Pegasus Airlines: S/M/T/W/T/F/S – PC271 (departure at 11:42)

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

  Here are some tips for finding the best flight deals from Istanbul to Sofia on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Sun, Nov 15, with one-way fares from just € 43.
  · Compare airlines. Pegasus Airlines currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. July is generally the busiest month for travel to Sofia.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Istanbul to Sofia to get the best price?

  The cheapest month to book a flight from Istanbul to Sofia is usually November, when demand is lower.

• Which upcoming date is the cheapest for flights from Istanbul to Sofia?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Istanbul to Sofia on October 25, 2026 with Pegasus Airlines, with prices starting at € 50.

• Which airports should you choose for flights from Istanbul to Sofia?

  Flights to Sofia can arrive at: Sofia Airport (SOF). The most common route connects Istanbul Airport and Sofia Airport (IST–SOF).

• What is the time difference between Istanbul and Sofia?

  The time difference between Sofia and Istanbul is 1h.

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

  Tickets can only be changed or cancelled 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 Istanbul to Sofia?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Istanbul to Sofia is € 174. Fares vary by travel date, airline and availability.

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

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Istanbul to Sofia is € 193. The final price depends on the outbound and return dates, airline and fare conditions.

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

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

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

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