Jeju Air7C
Flights 7C3211 20:20 We Th Sa Su
live
Direct flights from Seoul (ICN) to I Fadang (SPN): 4 nonstop departures observed each week across 1 airline. The median arrival is 15 minutes late. No cancellations were recorded across the 4 tracked flights. The nonstop covers 3,128 km, an estimated 4 hours 31 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and I Fadang. Updated 11 September 2026 at 04:25 UTC.
ICN
Seoul
busy · +19
SPN
I Fadang
tracking
3,128 km · ~4h 31m est.
Running clean · 1 airline · 4x weekly · nonstop
74 / 100
route health from live ICN and SPN delay boards
Median arrival delay is +15 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+15 minacross the last 4 operated legs
Flight time~4h 31mestimated from route distance
Weekly departures4x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Jeju Air
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 I Fadang route actually runs
Pro Flight Search records official board updates for nonstop ICN to SPN 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 I Fadang (SPN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ICN-SPN
ICN to SPN questions
Is ICN–SPN running on time right now?
Mostly on schedule. The departure side at ICN is the weaker end, route health score 74/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ICN to SPN?
Great-circle distance is 3,128 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 251–298 min gate-to-gate on this route.
How often does ICN–SPN fly?
Jeju Air runs the route with about 4 flights a week (sun, wed, 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 SPN, 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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