Trinity AirwaysTW
Flights TW409 varies Tu Th Sa
live
Direct flights from Seoul (ICN) to Zagreb (ZAG): 3 nonstop departures observed each week across 1 airline. The median arrival is 9 minutes early. No cancellations were recorded across the 2 tracked flights. The nonstop covers 8,445 km, an estimated 11 hours 20 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and Zagreb. Updated 9 September 2026 at 14:58 UTC.
ICN
Seoul
busy · +20
ZAG
Zagreb
smooth · +2
8,445 km · ~11h 20m est.
Running clean · 1 airline · 3x weekly · nonstop
87 / 100
route health from live ICN and ZAG delay boards
Median arrival delay is −9 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−9 minacross the last 2 operated legs
Flight time~11h 20mestimated from route distance
Weekly departures3x1 direct airline on the leg
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 ZAG: 31% odds of a 15+ minute delay and around +11 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 Zagreb route actually runs
Pro Flight Search records official board updates for nonstop ICN to ZAG 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 Zagreb (ZAG) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ICN-ZAG
ICN to ZAG questions
Is ICN–ZAG running on time right now?
Smooth skies ahead. The departure side at ICN is the weaker end, route health score 87/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ICN to ZAG?
Great-circle distance is 8,445 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 626–754 min gate-to-gate on this route.
How often does ICN–ZAG fly?
Trinity Airways runs the route with about 3 flights a week (tue, thu, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at ICN and arrival-side delay at ZAG, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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