Direct flights from Zagreb (ZAG) to Istanbul (IST): 10 nonstop departures observed each week across 2 airlines. 90% of the last 10 operated flights arrived within 15 minutes of schedule. The median arrival is on schedule. No cancellations were recorded across the 10 tracked flights. The nonstop covers 1,135 km, an estimated 1 hour 57 minutes in the air. Measured by Pro Flight Search from live flight boards at Zagreb and Istanbul. Updated 23 October 2026 at 20:38 UTC.
The ZAG board at 22:38 shows departure at 22:05 instead of 20:35.
Checked ZAG board 22:38 · IST board 23:37
of the last 10 operated ZAG → IST flights arrived within 15 minutes
Median arrival delay is +0 min. 0 of 10 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Current conditions put the pressure at ZAG: 29% odds of a 15+ minute delay and around +13 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
Pro Flight Search records official board updates for nonstop ZAG to IST 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
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Pro Flight Search — Zagreb (ZAG) to Istanbul (IST) route reliability, measured from operated flights on official airport boards.
https://proflightsearch.com/search-flights/ZAG-IST
Mostly on schedule. The departure side at ZAG is the weaker end, route health score 73/100. The airports section above carries the live status and delay window at both ends.
Operators schedule morning departures around 09:35 and evening departures around 20:35 from ZAG. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IST delay card to confirm conditions when you'd arrive.
Great-circle distance is 1,135 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 110–127 min gate-to-gate on this route.
2 carriers operate this route, around 23 flights a week between them. Compare carrier days and times in the airline list above.
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