ITM → KUMOsaka to Yakushima

live

Direct flights from Osaka (ITM) to Yakushima (KUM): 7 nonstop departures observed each week across 1 airline. 100% 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 Osaka and Yakushima. Updated 13 October 2026 at 02:52 UTC.

Today, ITM → KUM

Tue 13 Oct · local times
  1. 11:25 JL2451Japan Airlines Left 11:28 ·

Checked ITM board 11:52

ITM Osaka smooth · +1
KUM Yakushima tracking
663 km · ~1h 21m est.
departs 11:257x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
100% on time

of the last 8 operated ITM → KUM flights arrived within 15 minutes

Median arrival delay is +1 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+1 minacross the last 8 operated legs
Flight time~1h 21mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
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 days
Japan AirlinesJL100% on time

Flights JL2451 11:25 daily

History

operated legs · board outcomes
10-13JL2451departed+3
10-12JL2451departed−2
10-11JL2451departed+1
10-10JL2451departed+0
10-09JL2451departed+3
10-08JL2451departed+1
10-07JL2451departed+1
10-06JL2451departed−1

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ITMOsaka +1 min smooth 🌤 scattered clouds · 3 kt Full ITM delay board →
KUMYakushima tracking Full KUM delay board →

How the Osaka to Yakushima route actually runs

Pro Flight Search records official board updates for nonstop ITM to KUM flights through the day: 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.

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 — Osaka (ITM) to Yakushima (KUM) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ITM-KUM
How we measure this →

ITM to KUM questions

Is ITM–KUM running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from ITM to KUM?

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 ITM–KUM 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 ITM and arrival-side delay at KUM, 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.