JL504 SapporoCTS · 09:55 TokyoHND · 11:40
JL504 by Japan Airlines flies from Sapporo (CTS) to Tokyo (HND) for the Wed, Oct 28 departure.
arrived at HND · 12 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 +5 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at CTS and HND 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 →
Tomorrow on this route
ForecastSapporo to Tokyo with Japan Airlines · Thu 29 Oct, local date
- Chance a departure is cancelled
- 0.4%2.2× usual
- Chance a departure leaves 60+ min late
- 1.7%1.2× usual
Forecast weather: 79% chance of rain at Sapporo
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 17 departures a day on this route with this airline. · 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 Sapporo to Tokyo flights today
same route · Japan AirlinesIf JL504 is cancelled, these are the other Japan Airlines nonstop flights from Sapporo to Tokyo on the same day, with scheduled departure times in CTS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
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 on time. Based on 14 confirmed landings · 12/14 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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