CJJ → OKACheongju to Naha

live

Direct flights from Cheongju (CJJ) to Naha (OKA): 3 nonstop departures 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 Cheongju and Naha. Updated 31 October 2026 at 20:45 UTC.

Today, CJJ → OKA

Sun 1 Nov · local times
  1. · RF394Aero K On schedule OKA 09:00scheduled

Checked OKA board 09:08

CJJ Cheongju tracking
OKA Naha smooth · +3
1,170 km · ~2h 00m est.
departs 09:053x weekly
Running clean · 1 airline · 3x weekly · nonstop
92 / 100

route health from live CJJ and OKA delay boards

Flight time~2h 00mestimated from route distance
Weekly departures3x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
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 days
Aero KRF

Flights RF394 09:05 Fr Sa Su

Airports right now

live boards
CJJCheongju tracking Full CJJ delay board →
OKANaha +3 min smooth 🌤 mostly cloudy · ESE 3 kt Full OKA delay board →

How the Cheongju to Naha route actually runs

Pro Flight Search records official board updates for nonstop CJJ to OKA 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: Cheongju (CJJ) to Naha (OKA) route reliability, measured from operated flights on official airport boards.

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

CJJ to OKA questions

Is CJJ–OKA running on time right now?

Smooth skies ahead. The arrival 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 CJJ to OKA?

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 CJJ–OKA fly?

Aero K runs the route with about 3 flights a week (sun, fri, sat). 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 CJJ and arrival-side delay at OKA, 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.