Turkish AirlinesTK84% on time
Flights TK1027 08:20 daily · TK1127 10:30 Fr Su · TK1031 14:55 daily · TK1029 20:35 daily
live
Direct flights from Istanbul (IST) to Sofia (SOF): 23 nonstop departures observed each week across 1 airline. 84% of the last 25 tracked flights arrived within 15 minutes of schedule. The median arrival is 2 minutes early. No cancellations were recorded across the 25 tracked flights. The nonstop covers 469 km, an estimated 1 hour 6 minutes in the air. Measured by Pro Flight Search from live flight boards at Istanbul and Sofia. Updated 14 November 2026 at 15:40 UTC.
Today, IST → SOF
Sat 14 Nov · local times- 08:20 TK1027Turkish Airlines Left 08:20 Landed 08:41 +1
- 14:55 TK1031Turkish Airlines Left 15:20 +25 Landed 15:37 +27
- 20:35 TK1029Turkish Airlines On scheduleGate F4A ·
Checked IST board 18:40 · SOF board 17:14
IST
Istanbul
smooth · +0
SOF
Sofia
smooth · +7
469 km · ~1h 06m est.
Runs reliable · 1 airline · 23x weekly · nonstop
84% on time
of the last 25 tracked IST → SOF flights arrived within 15 minutes
Median arrival delay is −2 min. 0 of 25 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−2 minacross the last 25 arrivals
Flight time~1h 06mestimated from route distance
Weekly departures23x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 25
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Turkish Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Conditions are tightest at IST and SOF: a 26% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +3 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Istanbul to Sofia route actually runs
Pro Flight Search records official board updates for nonstop IST to SOF flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search: Istanbul (IST) to Sofia (SOF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IST-SOF
IST to SOF questions
Is IST–SOF running on time right now?
Smooth skies ahead. The arrival side at SOF is the weaker end, route health score 87/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IST–SOF?
Operators schedule morning departures around 08:20 and evening departures around 20:35 from IST. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SOF delay card to confirm conditions when you'd arrive.
How long is the flight from IST to SOF?
Great-circle distance is 469 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 63–70 min gate-to-gate on this route.
How often does IST–SOF fly?
Turkish Airlines runs the route with about 23 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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