CJJ → CJUCheongju to Jeju City

live

Direct flights from Cheongju (CJJ) to Jeju City (CJU): 49 nonstop departures observed each week across 7 airlines. 53% of the last 59 operated flights arrived within 15 minutes of schedule. The median arrival is 12 minutes late. No cancellations were recorded across the 59 tracked flights. The nonstop covers 368 km, an estimated 58 minutes in the air. Measured by Pro Flight Search from live flight boards at Cheongju and Jeju City. Updated 18 October 2026 at 07:11 UTC.

Today, CJJ → CJU

Sun 18 Oct · local times
  1. · 7C211제주항공 Departed Landed 11:38 +33
  2. · 7C213제주항공 Departed Landed 13:16 +51
  3. · 7C225제주항공 On schedule CJU 20:10scheduled
  4. · 7C227제주항공 On schedule CJU 20:25scheduled
  5. · KE1707대한항공 Departed Landed 10:46 +6
  6. · KE1717대한항공 On schedule CJU est. 16:14 +59sched 15:15
  7. · KE1725대한항공 On schedule CJU 18:30scheduled
  8. · LJ401진에어 Departed Landed 13:05 +25
  9. · LJ403진에어 Departed Landed 13:34 −1
  10. · LJ405진에어 Departed Landed 16:01 +41
  11. · LJ407진에어 On schedule CJU 17:35scheduled
  12. · LJ409진에어 On schedule CJU 20:35scheduled
  13. · LJ417진에어 On schedule CJU 21:40scheduled
  14. · OZ8233아시아나항공 Departed Landed 14:24 +19
  15. · OZ8235아시아나항공 On schedule CJU 18:20scheduled
  16. · OZ8237아시아나항공 On schedule CJU 22:40scheduled
  17. · OZ8239아시아나항공 On schedule CJU 22:20scheduled
  18. · RF609에어로케이 On schedule CJU est. 16:08 +38sched 15:30
  19. · RF613에어로케이 On schedule CJU 19:50scheduled
  20. · TW835트리니티항공 Departed Landed 10:23 +3
  21. · TW837트리니티항공 Departed Landed 14:07 −3
  22. · TW843트리니티항공 Departed Landed 09:54 +9
  23. · TW849트리니티항공 On schedule CJU 21:05scheduled
  24. · ZE711이스타항공 Departed Landed 09:13 +23
  25. · ZE715이스타항공 On schedule CJU 21:40scheduled

Checked CJU board 16:11

CJJ Cheongju tracking
CJU Jeju City smooth · +9
368 km · ~0h 58m est.
dep bank 07:20–22:4049x weekly
Runs rough · 7 airlines · 49x weekly · nonstop
53% on time

of the last 59 operated CJJ → CJU flights arrived within 15 minutes

Median arrival delay is +12 min. 0 of 59 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+12 minacross the last 59 operated legs
Flight time~0h 58mestimated from route distance
Weekly departures49x7 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 59

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Aero KAsiana AirlinesCoyne AirwaysEastar Jet

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 RF609 varies daily · RF613 19:50 daily

Asiana AirlinesOZ57% on time

Flights OZ8233 14:05 daily · OZ8235 18:20 daily · OZ8239 22:20 daily · OZ8237 22:40 We Su

Coyne Airways7C20% on time

Flights 7C211 11:05 daily · 7C213 12:25 daily · 7C225 20:10 daily · 7C227 20:25 daily

Eastar JetZE

Flights ZE711 08:50 daily · ZE715 21:40 daily

Jin AirLJ47% on time

Flights LJ481 07:20 Tu We Fr Sa · LJ401 12:40 daily · LJ403 13:50 daily · LJ405 15:20 daily

T'way AirlinesTW80% on time

Flights TW841 09:05 Mo We Fr · TW843 varies Tu Th Sa Su · TW835 10:20 daily · TW837 14:10 daily

대한항공KE63% on time

Flights KE1707 10:40 daily · KE1709 12:25 Tu Th Sa · KE1717 15:15 daily · KE1725 18:30 daily

History

operated legs · board outcomes
10-187C211arrived+33
10-187C213arrived+51
10-18KE1707arrived+6
10-18LJ401arrived+25
10-18LJ403arrived−1
10-18LJ405arrived+41
10-18OZ8233arrived+19
10-18TW835arrived+3
10-18TW837arrived−3
10-18TW843arrived+9
10-18ZE711arrived+23
10-177C211arrived+4
10-177C213arrived+33
10-177C225arrived+31
10-177C227arrived+48
10-17KE1707arrived−6
10-17KE1709arrived+5
10-17KE1717arrived+28
10-17KE1725arrived+2
10-17LJ401arrived+139
10-17LJ403arrived+0
10-17LJ405arrived+49
10-17LJ407arrived+20
10-17LJ409arrived+25
10-17LJ417arrived−5
10-17LJ481arrived−10
10-17OZ8233arrived+27
10-17OZ8235arrived+15
10-17OZ8239arrived−13
10-17RF609arrived+39
10-17RF613arrived+45
10-17TW835arrived−2
10-17TW837arrived+7
10-17TW839arrived+7
10-17TW843arrived−5
10-17TW849arrived+17
10-17ZE711arrived−11
10-17ZE715arrived−3
10-167C211arrived+27
10-167C213arrived+6

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
CJJCheongju tracking Full CJJ delay board →
CJUJeju City +9 min smooth Full CJU delay board →

How the Cheongju to Jeju City route actually runs

Pro Flight Search records official board updates for nonstop CJJ to CJU 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 Jeju City (CJU) route reliability, measured from operated flights on official airport boards.

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

CJJ to CJU questions

Is CJJ–CJU running on time right now?

Smooth skies ahead. The arrival side at CJU is the weaker end, route health score 86/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from CJJ to CJU?

Great-circle distance is 368 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 56–62 min gate-to-gate on this route.

How often does CJJ–CJU fly?

7 carriers operate this route, around 181 flights a week between them. Compare carrier days and times in the airline list above.

What does the route health score measure?

A blend of departure-side delay at CJJ and arrival-side delay at CJU, 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.