JL121 TokyoHND · 14:35 OsakaITM · 15:40
JL121 by Japan Airlines flies from Tokyo (HND) to Osaka (ITM) for the Tue, Sep 15 departure.
departs HND · on schedule
board checked 25m 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 +9 min · 1 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HND and ITM 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.
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 Tokyo to Osaka flights today
same route · Japan AirlinesIf JL121 is cancelled, these are the other Japan Airlines nonstop flights from Tokyo to Osaka on the same day, with scheduled departure times in HND local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How JL121 actually runs
Pro Flight Search has tracked every published board update for JL121 across the HND and ITM boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min late. Based on 13 confirmed landings · 10/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how JL121 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 HND and ITM published them.
Planning around JL121? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — JL121 Tokyo to Osaka on-time performance, measured from the HND and ITM airport boards.
https://proflightsearch.com/flight/JL121
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