CTS → ICNSapporo to Seoul

live

Direct flights from Sapporo (CTS) to Seoul (ICN): 49 nonstop departures observed each week across 7 airlines. 91% of the last 33 operated flights arrived within 15 minutes of schedule. The median arrival is 14 minutes early. No cancellations were recorded across the 33 tracked flights. The nonstop covers 1,422 km, an estimated 2 hours 19 minutes in the air. Measured by Pro Flight Search from live flight boards at Sapporo and Seoul. Updated 15 September 2026 at 14:12 UTC.

CTS Sapporo smooth · +5
ICN Seoul smooth · +0
1,422 km · ~2h 19m est.
dep bank 11:00–16:2049x weekly
Runs reliable · 7 airlines · 49x weekly · nonstop
91% on time

of the last 33 operated CTS → ICN flights arrived within 15 minutes

Median arrival delay is −14 min. 0 of 33 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−14 minacross the last 33 operated legs
Flight time~2h 19mestimated from route distance
Weekly departures49x7 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 33

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Asiana AirlinesCoyne AirwaysEastar Jet

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
KE88% on time

Flights KE766 14:50 daily · KE770 16:20 daily

Asiana AirlinesOZ

Flights OZ173 14:30 daily

Coyne Airways7C100% on time

Flights 7C1502 11:00 daily · 7C1504 16:00 daily

Eastar JetZE

Flights ZE626 12:55 daily

Jin AirLJ

Flights LJ302 12:10 daily

T'way AirlinesTW

Flights TW264 14:30 daily

Thai SmileWE

Flights WE532 varies daily

History

operated legs · board outcomes
09-157C1502dep −11 → arr−22
09-157C1504dep +1 → arr−8
09-15KE766dep +21 → arr−5
09-15KE770dep +13 → arr−15
09-15LJ302dep +11 → arr+2
09-15OZ173dep +10 → arr−19
09-15TW264dep +15 → arr+1
09-15WE532dep +2 → arr+3
09-15ZE626dep +1 → arr−1
09-147C1502dep −7 → arr−23
09-147C1504dep −4 → arr−29
09-14KE766dep +28 → arr−7
09-14KE770dep +16 → arr−16
09-14LJ302dep +11 → arr−14
09-14OZ173dep +27 → arr−15
09-14TW264dep +1 → arr−4
09-14WE532dep +15 → arr+18
09-14ZE626dep −3 → arr−14
09-137C1502dep −13 → arr−40
09-137C1504dep −1 → arr−30
09-13KE766dep +13 → arr−22
09-13KE770dep +10 → arr−28
09-13LJ302dep +16 → arr−19
09-13OZ173dep +9 → arr−37
09-13TW264dep +4 → arr−18
09-13WE532dep +1 → arr−14
09-13ZE626dep +11 → arr−10
09-127C1502departed−7
09-127C1504departed−8
09-12KE766departed+20
09-12KE770departed+12
09-12LJ302departed+15
09-12OZ173departed+20

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
CTSSapporo +5 min smooth 🌤 mostly cloudy · 1 kt Full CTS delay board →
ICNSeoul +0 min smooth Full ICN delay board →

Weather lens

Current conditions put the pressure at CTS: 25% odds of a 15+ minute delay and around +2 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Sapporo to Seoul route actually runs

Pro Flight Search records official board updates for nonstop CTS to ICN 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 — Sapporo (CTS) to Seoul (ICN) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/CTS-ICN
How we measure this →

CTS to ICN questions

Is CTS–ICN running on time right now?

Smooth skies ahead. The departure side at CTS is the weaker end, route health score 95/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on CTS–ICN?

Operators schedule morning departures around 11:00 from CTS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ICN delay card to confirm conditions when you'd arrive.

How long is the flight from CTS to ICN?

Great-circle distance is 1,422 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 130–152 min gate-to-gate on this route.

How often does CTS–ICN fly?

7 carriers operate this route, around 63 flights a week between them. Compare carrier days and times in the airline list above.