NRT → CJUTokyo to Jeju City

live

Direct flights from Tokyo (NRT) to Jeju City (CJU): 4 nonstop departures observed each week across 1 airline. The median arrival is 36 minutes late. No cancellations were recorded across the 4 tracked flights. The nonstop covers 1,294 km, an estimated 2 hours 10 minutes in the air. Measured by Pro Flight Search from live flight boards at Tokyo and Jeju City. Updated 10 September 2026 at 07:24 UTC.

NRT Tokyo smooth · +3
CJU Jeju City smooth · +13
1,294 km · ~2h 10m est.
departs 16:354x weekly
Running clean · 1 airline · 4x weekly · nonstop
82 / 100

route health from live NRT and CJU delay boards

Median arrival delay is +36 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+36 minacross the last 4 operated legs
Flight time~2h 10mestimated from route distance
Weekly departures4x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Korean Air

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
Korean AirKE

Flights KE2126 16:35 Mo We Fr Su

History

operated legs · board outcomes
09-09KE2126dep +221 → arr+190
09-07KE2126dep +55 → arr+36
09-06KE2126dep +36 → arr+11
09-04KE2126dep +10 → arr−7

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
NRTTokyo +3 min smooth 🌫 mostly cloudy · NE 6 kt Full NRT delay board →
CJUJeju City +13 min smooth Full CJU delay board →

Weather lens

Current conditions put the pressure at NRT and CJU: 33% odds of a 15+ minute delay and around +2 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Tokyo to Jeju City route actually runs

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

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

NRT to CJU questions

Is NRT–CJU running on time right now?

Smooth skies ahead. The arrival side at CJU is the weaker end, 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 NRT to CJU?

Great-circle distance is 1,294 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 121–141 min gate-to-gate on this route.

How often does NRT–CJU fly?

Korean Air runs the route with about 4 flights a week (sun, mon, wed, fri). 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 NRT 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.