CTS → CJJSapporo to Cheongju

live

Direct flights from Sapporo (CTS) to Cheongju (CJJ): 7 nonstop departures observed each week across 1 airline. 100% of the last 16 operated flights arrived within 15 minutes of schedule. The median arrival is 6 minutes early. No cancellations were recorded across the 16 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 15 September 2026 at 22:37 UTC.

CTS Sapporo smooth · +5
CJJ Cheongju tracking
1,385 km · ~2h 17m est.
dep bank 11:55–16:507x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
100% on time

of the last 16 operated CTS → CJJ flights arrived within 15 minutes

Median arrival delay is −6 min. 0 of 16 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−6 minacross the last 16 operated legs
Flight time~2h 17mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 16

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 KRF100% on time

Flights RF351 11:55 daily · RF355 16:50 daily

History

operated legs · board outcomes
09-15RF351departed−11
09-15RF355departed−6
09-14RF351departed−7
09-14RF355departed−9
09-13RF351departed+4
09-13RF355departed+5
09-12RF351departed−7
09-12RF355departed−6
09-11RF351departed−10
09-11RF355departed−1
09-10RF351departed−10
09-10RF355departed−6
09-09RF351departed−11
09-09RF355departed+6
09-08RF351departed−1
09-08RF355departed+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
CTSSapporo +5 min smooth 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. The departure side at CTS is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on CTS–CJJ?

Operators schedule morning departures around 11:55 from CTS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the CJJ delay card to confirm conditions when you'd arrive.

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 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.