Cheap flights from Sofia to Istanbul

One-way fares from $42 · SOF → IST · prices found by travellers in the last 48 hours

Compare all dates Istanbul → Sofia
Cheapest fare
$42

Pegasus Airlines · Fri, Dec 4

Cheapest month
December

from $42

Direct flights
Yes

Pegasus Airlines

Flight time
1h 15m

500 km

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Cheapest month to fly from Sofia to Istanbul

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $46
  2. December 2026 Cheapest $42
  3. January 2027 $44
  4. February 2027 $54
  5. March 2027 $47
  6. April 2027 $61
  7. May 2027 $61
  8. June 2027 $55
  9. July 2027 $53
  10. August 2027 $53
  11. September 2027 $52
  12. October 2027 $56

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Pegasus Airlines
Depart19:20 Fri, Dec 4SOF → SAW 1h 15m · Direct
$42one way, per person
View deal
Pegasus Airlines
Depart12:55 Thu, Dec 31SOF → SAW 1h 15m · Direct
$44one way, per person
View deal
Pegasus Airlines
Depart12:55 Thu, Dec 3SOF → SAW 1h 15m · Direct
$46one way, per person
View deal
Pegasus Airlines
Depart12:55 Thu, Dec 17SOF → SAW 1h 15m · Direct
$46one way, per person
View deal
Pegasus Airlines
Depart11:45 Tue, Dec 1SOF → SAW 1h 15m · Direct
$47one way, per person
View deal
Pegasus Airlines
Depart12:55 Wed, Dec 2SOF → SAW 1h 15m · Direct
$47one way, per person
View deal
Pegasus Airlines
Depart12:55 Sat, Dec 5SOF → SAW 1h 15m · Direct
$47one way, per person
View deal
Pegasus Airlines
Depart15:20 Tue, Dec 8SOF → SAW 1h 15m · Direct
$47one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Istanbul

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in IstanbulCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in IstanbulTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in IstanbulPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in IstanbulCompare rental cars from major brands on EconomyBookings Compare cars →

Stay connected

eSIM for TürkiyeMobile data from the moment you land, by Airalo Get eSIM →

About flights from Sofia to Istanbul

Sofia (SOF) and Istanbul (IST) are about 500 km apart. Direct flights take around 1h 15m, and recent direct fares were with Pegasus Airlines. Over the next few months, one-way fares start from $42, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Sofia to Istanbul?

The cheapest one-way fare we've seen recently is $42 with Pegasus Airlines, departing Friday, December 4, 2026. Over the coming months, the lowest fare in each month ranges from $42 to $61.

What is the cheapest month to fly from Sofia to Istanbul?

December 2026 currently has the lowest fares, from $42 one way.

Are there direct flights from Sofia to Istanbul?

Yes. Recent direct fares were with Pegasus Airlines.

How long is the flight from Sofia to Istanbul?

A direct flight takes about 1h 15m. Sofia and Istanbul are around 500 km apart.

Which airlines fly from Sofia to Istanbul?

Recent fares on this route were with Pegasus Airlines, LOT Polish, Wizz Air and Air Serbia.

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