CTS → CJJSapporo to Cheongju

live

Direct flights from Sapporo (CTS) to Cheongju (CJJ): 7 nonstop departures observed each week across 1 airline. No cancellations were recorded across the 7 tracked flights. The nonstop covers 1,385 km, an estimated 2 hours 17 minutes in the air. Measured by Pro Flight Search from live flight boards at Sapporo and Cheongju. Updated 30 October 2026 at 23:43 UTC.

Today, CTS → CJJ

Sat 31 Oct · local times
  1. 11:30 RF351 On scheduleGate 70 ·

Checked CTS board 08:43

CTS Sapporo smooth · +0
CJJ Cheongju tracking
1,385 km · ~2h 17m est.
departs 11:557x weekly
Running clean · 1 airline · 7x weekly · nonstop
82 / 100

route health from live CTS and CJJ delay boards

0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Flight time~2h 17mestimated from route distance
Weekly departures7x1 direct airline on the leg

Who flies it

observed on the boards · 7 days
Aero KRF

Flights RF351 varies daily

History

operated legs · board outcomes
10-30RF351departed+2
10-29RF351departed−3
10-28RF351departed−7
10-27RF351departed−7
10-26RF351departed+3
10-25RF351departed−8
10-24RF351departed+8

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
CTSSapporo +0 min smooth ⛅ mostly cloudy · ESE 3 kt Full CTS delay board →
CJJCheongju tracking Full CJJ delay board →

How the Sapporo to Cheongju route actually runs

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

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

CTS to CJJ questions

Is CTS–CJJ running on time right now?

Smooth skies ahead. Both endpoints currently score the same, 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 CTS to CJJ?

Great-circle distance is 1,385 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 128–149 min gate-to-gate on this route.

How often does CTS–CJJ fly?

Aero K 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 CTS 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.