JL8121 TokyoNRT · 07:07 TokyoHND
JL8121 by Japan Airlines flies from Tokyo (NRT) to Tokyo (HND).
scheduled from NRT
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at NRT and HND are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at Tokyo
ForecastFri 30 Oct, local date
- Chance a departure is cancelled
- 1.2%usually 1.8%
- Chance a departure leaves 60+ min late
- 3.8%usually 3.6%
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 320 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Tokyo
ForecastFri 30 Oct, local date
- Chance a departure is cancelled
- 1.3%usually 1.5%
- Chance a departure leaves 60+ min late
- 2.4%usually 2.4%
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 670 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Tokyo to Tokyo flights today
same route · Japan AirlinesIf JL8121 is cancelled, these are the other Japan Airlines nonstop flights from Tokyo to Tokyo on the same day, with scheduled departure times in NRT 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 JL8121 actually runs
Pro Flight Search has tracked every published board update for JL8121 across the NRT and HND boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: departed +0 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how JL8121 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: JA607J.
Board clocks recorded as NRT and HND published them.
Planning around JL8121? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: JL8121 Tokyo to Tokyo on-time performance, measured from the NRT and HND airport boards.
https://proflightsearch.com/flight/JL8121
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