Asiana AirlinesOZ
Flights OZ337 09:35 Tu Sa
live
Direct flights from Seoul (ICN) to Yancheng (YNZ): 2 nonstop departures observed each week across 1 airline. The median arrival is 19 minutes late. No cancellations were recorded across the 2 tracked flights. The nonstop covers 721 km, an estimated 1 hour 25 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and Yancheng. Updated 11 September 2026 at 15:24 UTC.
ICN
Seoul
smooth · +7
YNZ
Yancheng
tracking
721 km · ~1h 25m est.
Running clean · 1 airline · 2x weekly · nonstop
88 / 100
route health from live ICN and YNZ delay boards
Median arrival delay is +19 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+19 minacross the last 2 operated legs
Flight time~1h 25mestimated from route distance
Weekly departures2x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Asiana 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 boardsnext sweep in 120s
How the Seoul to Yancheng route actually runs
Pro Flight Search records official board updates for nonstop ICN to YNZ 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 Yancheng (YNZ) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ICN-YNZ
ICN to YNZ questions
Is ICN–YNZ running on time right now?
Smooth skies ahead. The departure side at ICN is the weaker end, route health score 88/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ICN to YNZ?
Great-circle distance is 721 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 81–92 min gate-to-gate on this route.
How often does ICN–YNZ fly?
Asiana Airlines runs the route with about 2 flights a week (tue, 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 YNZ, 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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