GJ8939 HangzhouHGH · 17:55 Jeju CityCJU · 21:25
GJ8939 by Loong Air flies from Hangzhou (HGH) to Jeju City (CJU) for the Sun, Sep 20 departure.
departs HGH · on schedule
board checked 55m ago · checking again in 45s
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 −29 min · 0 cancelled · 14 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at HGH and CJU 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.
How GJ8939 actually runs
Pro Flight Search has tracked every published board update for GJ8939 across the HGH and CJU boards: schedule changes, gate pushes and actual clocks. Usually lands ~29 min early. Based on 13 confirmed landings · 13/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how GJ8939 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: B-8560.
Board clocks recorded as HGH and CJU published them.
Planning around GJ8939? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — GJ8939 Hangzhou to Jeju City on-time performance, measured from the HGH and CJU airport boards.
https://proflightsearch.com/flight/GJ8939
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