7C121 SeoulGMP · 12:55 Jeju CityCJU · 14:10
7C121 by Jeju Air flies from Seoul (GMP) to Jeju City (CJU) for the Tue, Nov 3 departure.
en route from GMP to CJU
board checked 37m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 13:25.
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 +10 min · 0 cancelled · 10 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seoul to Jeju City flights today
same route · Jeju AirIf 7C121 is cancelled, these are the other Jeju Air nonstop flights from Seoul to Jeju City on the same day, with scheduled departure times in GMP local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How 7C121 actually runs
Pro Flight Search has tracked every published board update for 7C121 across the GMP and CJU boards: schedule changes, gate pushes and actual clocks. Usually lands ~10 min late. Based on 10 confirmed landings · 8/10 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 7C121 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 GMP and CJU published them.
Planning around 7C121? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: 7C121 Seoul to Jeju City on-time performance, measured from the GMP and CJU airport boards.
https://proflightsearch.com/flight/7C121
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