Cheap flights from Istanbul to Sofia

One-way fares from $39 · IST → SOF · prices found by travellers in the last 48 hours

Compare all dates Sofia → Istanbul
Cheapest fare
$39

Pegasus Airlines · Sun, Dec 20

Cheapest month
December

from $39

Direct flights
Yes

Pegasus Airlines and Turkish Airlines

Flight time
1h 20m

500 km

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Cheapest month to fly from Istanbul to Sofia

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

  1. November 2026 $44
  2. December 2026 Cheapest $39
  3. January 2027 $40
  4. February 2027 $47
  5. March 2027 $42
  6. May 2027 $62
  7. June 2027 $56
  8. July 2027 $58
  9. August 2027 $62
  10. September 2027 $83

Cheapest dates in December 2026

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

Pegasus Airlines
Depart11:40 Sun, Dec 20SAW → SOF 1h 20m · Direct
$39one way, per person
View deal
Pegasus Airlines
Depart11:40 Mon, Dec 14SAW → SOF 1h 20m · Direct
$42one way, per person
View deal
Pegasus Airlines
Depart14:05 Tue, Dec 15SAW → SOF 1h 20m · Direct
$43one way, per person
View deal
Pegasus Airlines
Depart14:05 Tue, Dec 1SAW → SOF 1h 20m · Direct
$44one way, per person
View deal
Pegasus Airlines
Depart11:40 Wed, Dec 2SAW → SOF 1h 20m · Direct
$44one way, per person
View deal
Pegasus Airlines
Depart11:40 Sat, Dec 5SAW → SOF 1h 20m · Direct
$44one way, per person
View deal
Pegasus Airlines
Depart11:40 Sun, Dec 6SAW → SOF 1h 20m · Direct
$44one way, per person
View deal
Pegasus Airlines
Depart11:40 Mon, Dec 7SAW → SOF 1h 20m · Direct
$44one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Sofia

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

Where to stay

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

Things to do

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

Getting around

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

About flights from Istanbul to Sofia

Istanbul (IST) and Sofia (SOF) are about 500 km apart. Direct flights take around 1h 20m, and recent direct fares were with Pegasus Airlines and Turkish Airlines. Over the next few months, one-way fares start from $39, 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 Istanbul to Sofia?

The cheapest one-way fare we've seen recently is $39 with Pegasus Airlines, departing Sunday, December 20, 2026. Over the coming months, the lowest fare in each month ranges from $39 to $83.

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

December 2026 currently has the lowest fares, from $39 one way.

Are there direct flights from Istanbul to Sofia?

Yes. Recent direct fares were with Pegasus Airlines and Turkish Airlines.

How long is the flight from Istanbul to Sofia?

A direct flight takes about 1h 20m. Istanbul and Sofia are around 500 km apart.

Which airlines fly from Istanbul to Sofia?

Recent fares on this route were with Pegasus Airlines, Tarom and Turkish Airlines.

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