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Flights from Sofia to Istanbul

Hi, I've summed up all the key info for Sofia to Istanbul flights

Cheapest one-way

US$ 58
Pegasus Airlines Sun, Nov 1

72% below next 30d avg. (US$205)

Cheapest round-trip

US$ 92
Tarom Mon, Oct 12

67% below next 30d avg. (US$275)

Fastest flight

1h 15m 12m faster than avg. (1h 27m)

Recommended airlines

When to fly

November Cheapest month
January Peak month

With a lowest one-way fare of US$58 , travelers can expect an average price of US$205 for upcoming trips, while round-trip tickets start at US$92 . Flights typically take around 1h 27m , but the fastest nonstop option completes the journey in just 1h 15m minutes. There are 29 flights weekly on this route. 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. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 16h ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Sofia to Istanbul over the next 90 days, with one-way fares from US$58 and round-trip from US$92. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Mon, Oct 26 | Pegasus Airlines
        SAW 13:00
        1h 20m
        Nonstop
        SOF 13:20
        Istanbul - Sofia | Fri, Oct 30 | Pegasus Airlines
        US$118 US$168
        30% off
        30% off
        US$168 US$118
      • SOF 14:15
        1h 15m
        Nonstop
        SAW 16:30
        Sofia - Istanbul | Fri, Nov 6 | Pegasus Airlines
        SAW 11:40
        1h 20m
        Nonstop
        SOF 12:00
        Istanbul - Sofia | Mon, Nov 9 | Pegasus Airlines
        US$119 US$168
        28% off
        28% off
        US$168 US$119
      • SOF 12:30
        1h 15m
        Nonstop
        SAW 14:45
        Sofia - Istanbul | Tue, Nov 10 | Pegasus Airlines
        SAW 11:40
        1h 20m
        Nonstop
        SOF 12:00
        Istanbul - Sofia | Mon, Nov 16 | Pegasus Airlines
        US$121 US$168
        28% off
        28% off
        US$168 US$121
      • SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Mon, Nov 2 | Pegasus Airlines
        SAW 13:00
        1h 20m
        Nonstop
        SOF 13:20
        Istanbul - Sofia | Fri, Nov 6 | Pegasus Airlines
        US$121
        28% off
        US$168 US$121
      • SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Sat, Nov 7 | Pegasus Airlines
        SAW 11:40
        1h 20m
        Nonstop
        SOF 12:00
        Istanbul - Sofia | Mon, Nov 9 | Pegasus Airlines
        US$122
        27% off
        US$168 US$122
      • SOF 19:55
        1h 15m
        Nonstop
        SAW 21:10
        Sofia - Istanbul | Thu, Oct 1 | Pegasus Airlines
        SAW 16:25
        1h 20m
        Nonstop
        SOF 17:45
        Istanbul - Sofia | Sun, Oct 4 | Pegasus Airlines
        US$124
        26% off
        US$168 US$124
      • SOF 13:15
        1h 15m
        Nonstop
        SAW 14:30
        Sofia - Istanbul | Fri, Oct 9 | Pegasus Airlines
        SAW 16:25
        1h 20m
        Nonstop
        SOF 17:45
        Istanbul - Sofia | Sun, Oct 11 | Pegasus Airlines
        US$125
        26% off
        US$168 US$125
      • SOF 18:45
        1h 15m
        Nonstop
        SAW 20:00
        Sofia - Istanbul | Sun, Oct 11 | Pegasus Airlines
        SAW 16:25
        1h 20m
        Nonstop
        SOF 17:45
        Istanbul - Sofia | Sun, Oct 18 | Pegasus Airlines
        US$127
        24% off
        US$168 US$127
      • SOF 13:00
        9h 25m
        1 stop
        IST 22:25
        Sofia - Istanbul | Mon, Oct 12 | Tarom
        IST 10:15
        9h 50m
        1 stop
        SOF 20:05
        Istanbul - Sofia | Fri, Oct 16 | Tarom
        US$92
        45% off
        US$168 US$92
      • SOF 21:05
        12h 20m
        1 stop
        IST 09:25
        Sofia - Istanbul | Thu, Oct 8 | Tarom
        IST 23:15
        13h 15m
        1 stop
        SOF 12:30
        Istanbul - Sofia | Sun, Oct 11 | Tarom
        US$101
        40% off
        US$168 US$101
      • SOF 13:00
        17h 25m
        1 stop
        IST 14:00
        Sofia - Istanbul | Wed, Sep 16 | Normal Airline
        IST 15:00
        6h
        Nonstop
        SOF 16:00
        Istanbul - Sofia | Fri, Sep 18 | Normal Airline
        More cheap flights
        More cheap flights
      • Cheapest nonstop
        SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Sun, Nov 1 | Pegasus Airlines
        US$58 US$82
        28% off
        28% off
        US$82 US$58
      • SOF 12:45
        1h 15m
        Nonstop
        SAW 15:00
        Sofia - Istanbul | Fri, Nov 6 | Pegasus Airlines
        US$58 US$82
        28% off
        28% off
        US$82 US$58
      • SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Mon, Nov 9 | Pegasus Airlines
        US$59 US$82
        28% off
        28% off
        US$82 US$59
      • SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Wed, Nov 11 | Pegasus Airlines
        US$59
        28% off
        US$82 US$59
      • SOF 12:45
        1h 15m
        Nonstop
        SAW 15:00
        Sofia - Istanbul | Tue, Nov 10 | Pegasus Airlines
        US$61
        26% off
        US$82 US$61
      • SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Thu, Oct 29 | Pegasus Airlines
        US$61
        26% off
        US$82 US$61
      • SOF 12:45
        1h 15m
        Nonstop
        SAW 15:00
        Sofia - Istanbul | Mon, Oct 26 | Pegasus Airlines
        US$61
        26% off
        US$82 US$61
      • SOF 12:45
        1h 15m
        Nonstop
        SAW 15:00
        Sofia - Istanbul | Mon, Nov 2 | Pegasus Airlines
        US$61
        26% off
        US$82 US$61
      • SOF 12:55
        1h 15m
        Nonstop
        SAW 15:10
        Sofia - Istanbul | Sun, Oct 25 | Pegasus Airlines
        US$61
        26% off
        US$82 US$61
      • SOF 14:15
        1h 15m
        Nonstop
        SAW 16:30
        Sofia - Istanbul | Fri, Nov 13 | Pegasus Airlines
        US$62
        24% off
        US$82 US$62
      • SOF 13:00
        17h 25m
        1 stop
        IST 14:00
        Sofia - Istanbul | Wed, Sep 16 | Normal Airline
        More cheap flights
        More cheap flights

Flight.News
Flights from Sofia to Istanbul operate an average of 10 times per day over the past 7 days, with a 34.3% on-time departure rate and a 100.0% on-time arrival rate.

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

You can pick from 2 carriers that fly from Sofia to Istanbul including Turkish Airlines, Pegasus Airlines, , with Pegasus Airlines serving cheapest direct ticket on this route.
Turkish Airlines logo Turkish Airlines
Pegasus Airlines logo Pegasus Airlines
Airlines are determined based on actual purchased flight tickets from Sofia to Istanbul according to previous 12 months data from Trip.com.

Sofia to Istanbul Flight Information

The distance between Sofia and Istanbul is about 494.78 km. The average flying time from Sofia to Istanbul is around 1 hour 27 minutes. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is November.

Cheapest one-way flight price US$58
Cheapest return ticket price US$92
Cheapest month November
Peak season for travel January
Flight distance 494.78 km
Average flight time 1 hour 27 minutes
Popular airline Turkish Airlines
Frequency ～18/week
Flight statistics for the Sofia–Istanbul route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Trends on Flights from Sofia to Istanbul

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

Average monthly one-way flight prices from Sofia to Istanbul, 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 Sofia to Istanbul is May, with an average price of US$108; while the month with the highest flight price is usually March, with an average price of up to US$167.

US$167
US$138
US$108
US$79
    Cheapest
  • US$155
    Sep
  • US$118
    Oct
  • US$141
    Nov
  • US$133
    Dec
  • US$136
    Jan
  • US$114
    Feb
  • US$167
    Mar
  • US$114
    Apr
  • US$108
    May
  • US$111
    Jun
  • US$119
    Jul
  • US$138
    Aug

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 US$58 on Cheapest nonstop routes (e.g. SOF to SAW on Sun, Nov 1), while Tarom offers Cheapest nonstop round-trips from US$92 departing on Mon, Oct 12 and returning on Fri, Oct 16.
  • 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 -- TK1032 (15:52)
  • 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 Sun, Nov 1, with one-way flights priced at just US$58.
    · 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 January.
    · Get exclusive promo codes for Trip.com app users.
  • 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 14, 2026 with Pegasus Airlines, with prices starting at US$53.
  • 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Sofia to Istanbul is US$205. 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 Sofia to Istanbul is US$275. The final price depends on the outbound and return dates, airline and fare conditions.
  • 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.
  • Pegasus Airlinesare the most popular budget airlines flying from Sofia to Istanbul. Check baggage, seat and payment fees before comparing the final price.

Trip.com Airline Insights on Flights from Sofia to Istanbul

Which airline offers the cheapest direct flights from Sofia to Istanbul?

Data is based on the average price of all nonstop flights from Sofia to Istanbul on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Pegasus Airlines provides the lowest-priced direct flights from Sofia to Istanbul, with fares starting at US$91.

US$46
US$91
US$136
US$181
US$226
Pegasus Airlines
US$91
Pegasus Airlines
AEGEAN
US$120
AEGEAN
Tarom
US$190
Tarom
Turkish Airlines
US$199
Turkish Airlines
Air Serbia
US$226
Air Serbia

Which airline operates the most flights from Sofia to Istanbul?

Total flights from Sofia to Istanbul across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Turkish Airlines operates the most frequent flights from Sofia to Istanbul, with 26 flights per week.

0
7
17
26
Turkish Airlines
26
Turkish Airlines
IndiGo
23
IndiGo
Royal Jordanian
8
Royal Jordanian
EgyptAir
8
EgyptAir
Singapore Airlines
8
Singapore Airlines
Pegasus Airlines
7
Pegasus Airlines

How many flights fly from Sofia to Istanbul daily?

The data is based on the flight numbers for each day of the week from Sofia to Istanbul within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Sofia to Istanbul is the highest on Friday and the lowest on Monday/Tuesday/Wednesday/Thursday.

55
48
40
33
Highest
40
Mon
40
Tue
40
Wed
40
Thu
55
Fri
49
Sat
53
Sun

Explore More Popular Flights

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.