Asiana AirlinesOZ
Flights OZ551 10:25 Tu We Th Fr Sa
live
Direct flights from Seoul (ICN) to Istanbul (IST): 17 nonstop departures observed each week across 3 airlines. 91% of the last 11 operated flights arrived within 15 minutes of schedule. The median arrival is 40 minutes early. No cancellations were recorded across the 11 tracked flights. The nonstop covers 7,923 km, an estimated 10 hours 39 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and Istanbul. Updated 22 September 2026 at 03:53 UTC.
ICN
Seoul
busy · +22
IST
Istanbul
smooth · +0
7,923 km · ~10h 39m est.
Runs reliable · 3 airlines · 17x weekly · nonstop
91% on time
of the last 11 operated ICN → IST flights arrived within 15 minutes
Median arrival delay is −40 min. 0 of 11 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−40 minacross the last 11 operated legs
Flight time~10h 39mestimated from route distance
Weekly departures17x3 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 11
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Asiana AirlinesKOREAN AIRLINESTurkish 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
Current conditions put the pressure at ICN and IST: 21% odds of a 15+ minute delay and around +-3 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
How the Seoul to Istanbul route actually runs
Pro Flight Search records official board updates for nonstop ICN 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
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 — Seoul (ICN) to Istanbul (IST) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ICN-IST
ICN to IST questions
Is ICN–IST running on time right now?
Smooth skies ahead. The departure side at ICN is the weaker end, route health score 85/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on ICN–IST?
Operators schedule morning departures around 10:15 and evening departures around 23:20 from ICN. 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.
How long is the flight from ICN to IST?
Great-circle distance is 7,923 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 589–709 min gate-to-gate on this route.
How often does ICN–IST fly?
3 carriers operate this route, around 21 flights a week between them. Compare carrier days and times in the airline list above.
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