KE1312 Jeju CityCJU · 19:40 SeoulGMP · 20:55
KE1312 by 대한항공 flies from Jeju City (CJU) to Seoul (GMP) for the Thu, Sep 10 departure.
departs CJU · on schedule
board checked 14m ago · checking again in 45s
⚖ KE1312 typically leaves +32 and lands +5. The air wins minutes back.Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +5 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at CJU and GMP are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Jeju City to Seoul flights today
same route · 대한항공If KE1312 is cancelled, these are the other 대한항공 nonstop flights from Jeju City to Seoul on the same day, with scheduled departure times in CJU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How KE1312 actually runs
Pro Flight Search has tracked every published board update for KE1312 across the CJU and GMP boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 13 confirmed landings · 8/13 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how KE1312 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as CJU and GMP published them.
Planning around KE1312? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — KE1312 Jeju City to Seoul on-time performance, measured from the CJU and GMP airport boards.
https://proflightsearch.com/flight/KE1312
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