ICN → SPNSeoul to I Fadang

live

Direct flights from Seoul (ICN) to I Fadang (SPN): 7 nonstop departures observed each week across 1 airline. 60% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 12 minutes late. 1 of the 5 tracked flights was cancelled. 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 17 October 2026 at 12:52 UTC.

Today, ICN → SPN

Sat 17 Oct · local times
  1. 20:20 7C3211JEJU AIR Cancelled ·

Checked ICN board 21:52

ICN Seoul heavy · +34
SPN I Fadang tracking
3,128 km · ~4h 31m est.
departs 20:207x weekly
Runs mixed · 1 airline · 7x weekly · nonstop
60% on time

of the last 5 operated ICN → SPN flights arrived within 15 minutes

Median arrival delay is +12 min. 1 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+12 minacross the last 5 operated legs
Flight time~4h 31mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
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 days
Jeju Air7C60% on time

Flights 7C3211 20:20 daily

History

operated legs · board outcomes
10-177C3211cancelledCNX
10-157C3211departed+12
10-147C3211departed+32
10-117C3211departed+11
10-107C3211departed+3

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ICNSeoul +34 min heavy Full ICN delay board →
SPNI Fadang tracking Full SPN delay board →

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
https://proflightsearch.com/search-flights/ICN-SPN
How we measure this →

ICN to SPN questions

Is ICN–SPN running on time right now?

Some delays possible. The departure side at ICN is the weaker end, route health score 54/100. 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 7 flights a week (daily). 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.