RF321 TokyoNRT · 12:55 CheongjuCJJ
RF321 by Aero K flies from Tokyo (NRT) to Cheongju (CJJ) for the Sun, Oct 25 departure.
departs NRT · on schedule
board checked 45m 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 operation0 cancelled · 14 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 Tokyo to Cheongju flights today
same route · Aero KIf RF321 is cancelled, these are the other Aero K nonstop flights from Tokyo to Cheongju on the same day, with scheduled departure times in NRT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How RF321 actually runs
Pro Flight Search has tracked every published board update for RF321 across the NRT and CJJ boards: schedule changes, gate pushes and actual clocks. Usually departs ~8 min early. Based on 13 confirmed departures · 11/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how RF321 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: HL8540, HL8596, HL8743, HL8386.
Board clocks recorded as NRT and CJJ published them.
Planning around RF321? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — RF321 Tokyo to Cheongju on-time performance, measured from the NRT and CJJ airport boards.
https://proflightsearch.com/flight/RF321
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