KE683KOREAN AIRLINES20 min late
The ICN board at 14:52 shows departure at 19:05 instead of 18:45, gate 234 (T2).
- Later cancelled
- 0.5%of 623 past KOREAN AIRLINES flights whose board showed 20 to 40 min late
- Still to leave today
- 7C2515 19:15JEJU AIR
live
Direct flights from Seoul (ICN) to Chiang Mai (CNX): 23 nonstop departures observed each week across 4 airlines. 22% of the last 23 operated flights arrived within 15 minutes of schedule. The median arrival is 26 minutes late. No cancellations were recorded across the 23 tracked flights. The nonstop covers 3,381 km, an estimated 4 hours 50 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and Chiang Mai. Updated 26 October 2026 at 05:52 UTC.
Today, ICN → CNX
Mon 26 Oct · local times- 16:45 LJ27JIN AIR On scheduleGate 246 · T2 ·
- 17:25 ZE517EASTARJET On scheduleGate 102 · T1 ·
- 18:45 KE683KOREAN AIRLINES Est. 19:05 +20Gate 234 · T2 ·
- 19:15 7C2515JEJU AIR On scheduleGate 28 · T1 ·
Checked ICN board 14:52
ICN
Seoul
busy · +18
CNX
Chiang Mai
tracking
3,381 km · ~4h 50m est.
Runs rough · 4 airlines · 23x weekly · nonstop
22% on time
of the last 23 operated ICN → CNX flights arrived within 15 minutes
Median arrival delay is +26 min. 0 of 23 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+26 minacross the last 23 operated legs
Flight time~4h 50mestimated from route distance
Weekly departures23x4 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 23
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air BusanEastar JetJeju AirJin 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 Chiang Mai route actually runs
Pro Flight Search records official board updates for nonstop ICN to CNX 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 Chiang Mai (CNX) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ICN-CNX
ICN to CNX questions
Is ICN–CNX running on time right now?
Mostly on schedule. The departure side at ICN is the weaker end, route health score 76/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on ICN–CNX?
Operators schedule evening departures around 17:20 from ICN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the CNX delay card to confirm conditions when you'd arrive.
How long is the flight from ICN to CNX?
Great-circle distance is 3,381 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 269–320 min gate-to-gate on this route.
How often does ICN–CNX fly?
4 carriers operate this route, around 23 flights a week between them. Compare carrier days and times in the airline list above.
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