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Flights from Istanbul to Sofia

Find Cheapest Airlines Flying from Istanbul to Sofia

Choose from 2 airlines flying from Istanbul to Sofia, including Pegasus Airlines, Turkish Airlines and . Pegasus Airlines currently offers the cheapest ticket on this route.
Pegasus Airlines logo Pegasus Airlines
Turkish Airlines logo Turkish Airlines
Airlines are determined based on actual purchased flight tickets from Istanbul to Sofia according to previous 12 months data from Trip.com.

Find the cheapest direct flight options from Istanbul to Sofia over the next three months. Book one-way tickets from KRW 60,800 and round-trip tickets from KRW 145,900.

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.

Flight Information for Istanbul to Sofia Flights

The distance between Istanbul and Sofia is 494.78km. It takes around 1 hour 18 minutes on average to fly from Istanbul to Sofia. Based on Trip.com's data, travel demand peaks in January. The off-season for travel is October.

Cheapest one-way flight priceKRW 60,800
Cheapest return ticket priceKRW 145,900
Off-season travel monthOctober
Peak season for travelJanuary
Flight distance494.78km
Average flight time1 hour 18 minutes
Popular airlinePegasus Airlines
Flight statistics for the Istanbul–Sofia route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Istanbul to Sofia

What is the cheapest month for one-way flights from Istanbul to Sofia?

The average one way ticket price paid by Trip.com users from Istanbul to Sofia in each month over the past 12 months.

Based on Trip.com data, the cheapest month to fly from Istanbul to Sofia is Jul, with an average price of KRW 134,300. The most expensive month is usually Mar, with average prices reaching KRW 244,300.

KRW 244,300
KRW 189,300
KRW 134,300
KRW 79,300
    Cheapest
  • KRW 209,300
    Feb
  • KRW 244,300
    Mar
  • KRW 188,900
    Apr
  • KRW 211,800
    May
  • KRW 178,400
    Jun
  • KRW 134,300
    Jul
  • KRW 156,200
    Aug
  • KRW 136,500
    Sep
  • KRW 155,600
    Oct
  • KRW 186,900
    Nov
  • KRW 146,700
    Dec
  • KRW 164,600
    Jan

What is the cheapest month for return flights from Istanbul to Sofia?

Average price of return flights from Istanbul to Sofia purchased by Trip.com users by month over the past 12 months

Based on Trip.com's historical data, Feb is often the cheapest month for fly from Istanbul to Sofia, with an average price of KRW 200,900. Mar is usually the most expensive period, with prices averaging as high as KRW 472,100.

KRW 472,100
KRW 336,500
KRW 200,900
KRW 65,300
  • KRW 200,900
    Feb
  • KRW 472,100
    Mar
  • KRW 341,600
    Apr
  • KRW 212,000
    May
  • KRW 361,300
    Jun
  • KRW 407,600
    Jul
  • KRW 434,100
    Aug
  • KRW 443,200
    Sep
  • KRW 273,300
    Oct
  • KRW 402,200
    Nov
  • KRW 307,100
    Dec
  • KRW 393,700
    Jan

Which day of the week is cheapest to fly from Istanbul to Sofia?

Data is based on the past 12 months and shows the average weekly airfare from Istanbul to Sofia on different days of the week according to Trip.com.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Istanbul to Sofia is Fri. The average fare on this day is usually lower than on other days. Try to avoid flying on Sat as fares are usually the highest.

KRW 214,400
KRW 185,300
KRW 156,200
KRW 127,100
    Cheapest
  • KRW 188,200
    Mon
  • KRW 206,300
    Tue
  • KRW 192,300
    Wed
  • KRW 173,200
    Thu
  • KRW 156,200
    Fri
  • KRW 214,400
    Sat
  • KRW 190,800
    Sun

Flight FAQs

  • Which airlines offer the cheapest flights from Istanbul (IST) to Sofia (SOF)?

    Based on Trip.com data, Pegasus Airlines offers one-way fares as low as KRW 60,800 on Cheapest nonstop routes (e.g. SAW to SOF on Thu, Mar 12), while Pegasus Airlines offers Cheapest nonstop round-trips from KRW 145,900 departing on Thu, Mar 19 and returning on Sun, Mar 22.
  • 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.
  • It takes about 1 hour 18 minutes to fly from Istanbul (IST) to Sofia (SOF).
  • 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 29 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 (15:51)
  • 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 Thu, Mar 12, with one-way flights priced at just KRW 60,800.
    · 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 January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Istanbul to Sofia is October, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Istanbul to Sofia on February 11, 2026 with Pegasus Airlines, with prices starting at KRW 104,300.
  • You can land at any one of the following hubs in Sofia, with Sabiha Gokcen International Airport to Sofia International Airport (SAW-SOF) is by far the most common option on this route: Sofia International Airport (SOF).
  • The time difference between Sofia and Istanbul is 1h.
  • 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.

Trip.com airline insights on flights from Istanbul to Sofia

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

Data is based on the past 12 months and reflects the average fare of all direct flights from Istanbul to Sofia on Trip.com.

Based on Trip.com data from the past 12 months, the airline offering the cheapest direct flights from Istanbul to Sofia is Pegasus Airlines, with an average fare of KRW 115,700.

KRW 68,934
KRW 115,700
KRW 162,467
KRW 209,234
KRW 256,000
Pegasus Airlines
KRW 115,700
Pegasus Airlines
AEGEAN
KRW 159,800
AEGEAN
Air Serbia
KRW 246,700
Air Serbia
Turkish Airlines
KRW 256,000
Turkish Airlines

Which airlines operate the most flights from Istanbul to Sofia?

The data is based on the past month and shows the number of flights each airline has from Istanbul to Sofia on Trip.com.

According to Trip.com data from the past month, the airline with the most flights from Istanbul to Sofia is IndiGo, operating 23 flights per week.

1
8
16
23
IndiGo
23
IndiGo
Turkish Airlines
23
Turkish Airlines
Pegasus Airlines
10
Pegasus Airlines
Royal Jordanian
8
Royal Jordanian
Singapore Airlines
8
Singapore Airlines
EgyptAir
8
EgyptAir

How many flights fly from Istanbul to Sofia each day?

The data is based on the past month and shows the number of flights per day of the week from Istanbul to Sofia on Trip.com.

Based on Trip.com data from the past month, flights from Istanbul to Sofia are most frequent on Friday, while the fewest flights operate on Monday.

55
47
38
30
Highest
38
Mon
40
Tue
40
Wed
38
Thu
55
Fri
48
Sat
55
Sun