Aero KRF
Flights RF393 09:50 We
live
Direct flights from Naha (OKA) to Cheongju (CJJ): 1 nonstop departure observed each week across 1 airline. The nonstop covers 1,170 km, an estimated 2 hours 0 minutes in the air. Measured by Pro Flight Search from live flight boards at Naha and Cheongju. Updated 13 October 2026 at 20:59 UTC.
OKA
Naha
smooth · +4
CJJ
Cheongju
tracking
1,170 km · ~2h 00m est.
Running clean · 1 airline · 1x weekly · nonstop
92 / 100
route health from live OKA and CJJ delay boards
Flight time~2h 00mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Aero K
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 daysAirports right now
live boardsnext sweep in 120s
How the Naha to Cheongju route actually runs
Pro Flight Search records official board updates for nonstop OKA to CJJ 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 — Naha (OKA) to Cheongju (CJJ) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/OKA-CJJ
OKA to CJJ questions
Is OKA–CJJ running on time right now?
Smooth skies ahead. The departure side at OKA 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 OKA to CJJ?
Great-circle distance is 1,170 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 113–130 min gate-to-gate on this route.
How often does OKA–CJJ fly?
Aero K runs the route with about 1 flight a week (wed). 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 OKA and arrival-side delay at CJJ, 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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