Japan Transocean AirNU
Flights NU3171 14:05 Mo Su
live
Direct flights from Sendai (SDJ) to Ishigaki (ISG): 2 nonstop departures observed each week across 1 airline. The median arrival is on schedule. No cancellations were recorded across the 1 tracked flight. The nonstop covers 2,195 km, an estimated 3 hours 19 minutes in the air. Measured by Pro Flight Search from live flight boards at Sendai and Ishigaki. Updated 11 October 2026 at 16:10 UTC.
SDJ
Sendai
smooth · +13
ISG
Ishigaki
tracking
2,195 km · ~3h 19m est.
Running clean · 1 airline · 2x weekly · nonstop
82 / 100
route health from live SDJ and ISG delay boards
Median arrival delay is +0 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+0 minacross the last 1 operated legs
Flight time~3h 19mestimated from route distance
Weekly departures2x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Japan Transocean Air
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 boardsWeather lens
Current conditions put the pressure at SDJ: 9% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Sendai to Ishigaki route actually runs
Pro Flight Search records official board updates for nonstop SDJ to ISG 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 — Sendai (SDJ) to Ishigaki (ISG) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SDJ-ISG
SDJ to ISG questions
Is SDJ–ISG running on time right now?
Smooth skies ahead. The departure side at SDJ is the weaker end, route health score 82/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SDJ to ISG?
Great-circle distance is 2,195 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 185–218 min gate-to-gate on this route.
How often does SDJ–ISG fly?
Japan Transocean Air runs the route with about 2 flights a week (sun, mon). 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 SDJ and arrival-side delay at ISG, 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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