JL504 SapporoCTS TokyoHND · 11:25
JL504 by Japan Airlines flies from Sapporo (CTS) to Tokyo (HND) for the Mon, Aug 17 departure.
arrived at HND · 14 min late
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 +19 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by CTS (Sapporo), currently flying MVFR (marginal visual). 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 →
How JL504 actually runs
Pro Flight Search has tracked every published board update for JL504 across the CTS and HND boards: schedule changes, gate pushes and actual clocks. Usually lands ~19 min late. Based on 14 confirmed landings · 6/14 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how JL504 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 CTS and HND published them.
Planning around JL504? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — JL504 Sapporo to Tokyo on-time performance, measured from the CTS and HND airport boards.
https://proflightsearch.com/flight/JL504
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