Cheap flights from Istanbul to Sofia
Cheapest current fares: $55 in December 2026, 468 km direct flight in ~33m.
Cheapest month-by-month fares
Lowest available fare per calendar month from Istanbul (IST) to Sofia (SOF). Refreshed daily.
Istanbul (IST) → Sofia (SOF)
- December 2026 $55
- January 2027 $60
- November 2026 $61
- August 2026 $65
- September 2026 $65
- October 2026 $65
Frequently asked questions
-
What is the cheapest month to fly from Istanbul to Sofia?
Based on current 6-month forward fare data, December 2026 is the cheapest month to fly from Istanbul (IST) to Sofia (SOF), with fares starting from $55.
-
What is the lowest current fare from IST to SOF?
The lowest currently-listed fare from Istanbul (IST) to Sofia (SOF) is $55 on 2026-12-30.
-
How long is the flight from Istanbul to Sofia?
Direct flights from IST to SOF cover approximately 468 km (291 miles), with an estimated flight time of 33m. Operating airlines: TK.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.