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What to know about flights from Istanbul to Sofia?

The approximate distance between Istanbul and Sofia is 494.78 km. Average flight time from Istanbul to Sofia is around 1 hour 17 minutes. According to Trip.com data, travel demand hits its peak in February. The cheapest month to book flights is December.

Cheapest one-way
RUB 3,163
Pegasus Airlines Pegasus Airlines IST-SOF 1h 20m · Nonstop Thu, Dec 3
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Cheapest round-trip
RUB 7,079
Pegasus Airlines Pegasus Airlines IST-SOF 1h 20m · Nonstop Wed, Nov 25 - Tue, Dec 1
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Flight news

Flights from Istanbul to Sofia operate an average of 5 times per day over the past 7 days, with a 29.0% on-time departure rate and a 93.5% on-time arrival rate.

Updated 17h ago

When to fly
December
Cheapest
February
Peak season
Route details
494.78 km
Flight distance
1h 17m
Average flight time

Explore the cheapest one-way and round-trip flights from Istanbul to Sofia over the next 90 days, with one-way fares from RUB 3,163 and round-trip from RUB 7,079. Based on Trip.com's latest 7-day flight data.

Displayed flight fares from Istanbul to Sofia are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airlines are the most popular for Istanbul to Sofia flights?

The most popular airlines flying from Istanbul to Sofia are Pegasus Airlines, Turkish Airlines, and AEGEAN, among 4 carriers on this route. Pegasus Airlines offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Airlines are determined based on actual purchased flight tickets from Istanbul to Sofia according to previous 12 months data from Trip.com.

Trip.com Price Trends on Flights from Istanbul to Sofia

Which month has the cheapest one-way flights from Istanbul to Sofia?

Average monthly one-way flight prices from Istanbul to Sofia, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Istanbul to Sofia is December, with an average price of RUB 8,588; while the month with the highest flight price is usually September, with an average price of up to RUB 11,896.

RUB 11,896
RUB 10,242
RUB 8,588
RUB 6,934
    Cheapest
  • RUB 10,197
    Nov
  • RUB 8,588
    Dec
  • RUB 9,631
    Jan
  • RUB 10,718
    Feb
  • RUB 10,034
    Mar
  • RUB 10,277
    Apr
  • RUB 9,966
    May
  • RUB 11,577
    Jun
  • RUB 9,424
    Jul
  • RUB 10,142
    Aug
  • RUB 11,896
    Sep
  • RUB 9,947
    Oct

Which month has the cheapest round-trip flights from Istanbul to Sofia?

The average price of round-trip flights from Istanbul to Sofia purchased by Trip.com users by month over the past 12 months.

Based on data from Trip.com, the lowest prices for round-trip flights from Istanbul to Sofia are found during December, with an average price of RUB 17,973. Conversely, the highest prices are found during February, with an average price of up to RUB 33,147.

RUB 33,147
RUB 25,560
RUB 17,973
RUB 10,386
    Cheapest
  • RUB 22,387
    Nov
  • RUB 17,973
    Dec
  • RUB 23,047
    Jan
  • RUB 33,147
    Feb
  • RUB 21,951
    Mar
  • RUB 21,827
    Apr
  • RUB 19,390
    May
  • RUB 21,332
    Jun
  • RUB 19,870
    Jul
  • RUB 24,872
    Aug
  • RUB 18,889
    Sep
  • RUB 22,933
    Oct

When is the cheapest day to fly from Istanbul to Sofia during Thanksgiving Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way flight prices from Istanbul to Sofia during Thanksgiving Day.

Thanksgiving Day is scheduled for Nov 26. The cheapest flights from Istanbul to Sofia are available on Nov 25, with fares starting at RUB 3,706.

RUB 7,462
RUB 5,584
RUB 3,706
RUB 1,828
    Cheapest
  • RUB 5,152
    23
    Nov
  • RUB 7,450
    24
  • RUB 3,706
    25
  • RUB 7,462
    26
  • RUB 6,894
    27
  • RUB 4,818
    28

Frequently Asked Questions

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

    Based on Trip.com data, Pegasus Airlines offers one-way fares as low as RUB 3,509 on Cheapest nonstop routes (e.g. SAW to SOF on Sun, Dec 13), while Pegasus Airlines offers Cheapest nonstop round-trips from RUB 7,079 departing on Wed, Nov 25 and returning on Tue, Dec 1.
  • At the moment, you can catch a nonstop flight from Istanbul to Sofia with the following airlines, including: Pegasus Airlines Turkish 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 17 minutes to fly 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.
  • Based on Trip.com data in the past 4 weeks, there is 32 flight per week flying from Istanbul to Sofia. You can check the weekly schedule for popular airlines on this route below: Turkish Airlines: S/M/T/W/T/F/S -- TK1031 (15:40)
  • To find best deals on flights from Istanbul to Sofia, 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 Sun, Dec 13, with one-way flights priced at just RUB 3,509.
    · 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 Sofia travel is around February.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Istanbul to Sofia is December, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Istanbul to Sofia on Fri, Nov 27 with Pegasus Airlines, with prices starting at RUB 3,583.
  • You can land at any one of the following hubs in Sofia: Sofia Airport (SOF). Flying from Istanbul Airport to Sofia Airport (IST-SOF) is by far the most common option on this route.
  • The time difference between Sofia and Istanbul 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Istanbul to Sofia is RUB 17,991. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Istanbul to Sofia is RUB 19,452. The final price depends on the outbound and return dates, airline and fare conditions.
  • 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 traveler details and complete payment to receive your confirmation.
  • Pegasus Airlines and SKY expressare the most popular budget airlines flying from Istanbul to Sofia. Check baggage, seat and payment fees before comparing the final price.

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.