Japan AirlinesJL88% on time
Flights JL2450 16:15 daily
live
Direct flights from Yakushima (KUM) to Osaka (ITM): 7 nonstop departures observed each week across 1 airline. 88% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is on schedule. No cancellations were recorded across the 8 tracked flights. The nonstop covers 663 km, an estimated 1 hour 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Yakushima and Osaka. Updated 19 August 2026 at 19:08 UTC.
KUM
Yakushima
tracking
ITM
Osaka
smooth · +3
663 km · ~1h 21m est.
Runs reliable · 1 airline · 7x weekly · nonstop
88% on time
of the last 8 operated KUM → ITM flights arrived within 15 minutes
Median arrival delay is +2 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival+2 minacross the last 8 operated legs
Flight time~1h 21mestimated from route distance
Weekly departures7x1 direct airline on the leg
Current nonstop fares
KUM → ITM · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Japan Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Yakushima to Osaka route actually runs
Pro Flight Search tracks every published board update for nonstop KUM to ITM flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Yakushima (KUM) to Osaka (ITM) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/KUM-ITM
KUM to ITM questions
Is KUM–ITM running on time right now?
Smooth skies ahead. The arrival side at ITM is the weaker end, route health score 92/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from KUM to ITM?
Great-circle distance is 663 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 77–87 min gate-to-gate on this route.
How often does KUM–ITM fly?
Japan Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at KUM and arrival-side delay at ITM, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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