JL2004 SapporoCTS OsakaITM · 13:50
JL2004 by Japan Airlines flies from Sapporo (CTS) to Osaka (ITM) for the Fri, Aug 21 departure.
arrival expected at ITM · on schedule
board checked 2m 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 +17 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at CTS 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
How JL2004 actually runs
Pro Flight Search has tracked every published board update for JL2004 across the CTS and ITM boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min late. Based on 13 confirmed landings · 6/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how JL2004 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 ITM published them.
Planning around JL2004? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — JL2004 Sapporo to Osaka on-time performance, measured from the CTS and ITM airport boards.
https://proflightsearch.com/flight/JL2004
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