--- title: "Jeju City (CJU) to Kumamoto (KMJ) flights: who flies it" description: "Air Seoul flies Jeju City (CJU) to Kumamoto (KMJ) nonstop twice a week as RS 9285, scheduled at 1h 25m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/cju-kmj" url: "https://2lnr.com/routes/cju-kmj.md" date_modified: "2026-10-18T05:10:47Z" --- # Jeju City to Kumamoto (CJU-KMJ): nonstop flights and who flies them Air Seoul flies nonstop from Jeju City (CJU) to Kumamoto (KMJ) just twice a week. In the timetable below it flies as RS 9285, scheduled at 1h 25m for the 257 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See CJU to KMJ on the interactive map [Get started free](https://2lnr.com/login) 2 Flights a week, 4-week average 1h 25m Scheduled flight time 257 mi Nonstop distance Free To get started ## Jeju City to Kumamoto flight schedule Scheduled nonstop departures for CJU to KMJ starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Jeju City (CJU) to Kumamoto (KMJ) | Date | Flight | Airline | Departs CJU | Arrives KMJ | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Sat, Oct 31 | RS 9285 | Air Seoul | 10:00 | 11:25 | 1h 25m | Airbus A321 | | Mon, Nov 2 | RS 9285 | Air Seoul | 13:00 | 14:25 | 1h 25m | Airbus A321 | Showing all 2 scheduled CJU to KMJ departures across 2 days with service, starting October 23, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every CJU to KMJ date on the interactive map ## Aircraft on the Jeju City to Kumamoto nonstop Air Seoul flies the Airbus A321 on every departure in the schedule table on this page. ## The full CJU to KMJ nonstop schedule This page carries the full CJU to KMJ nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each CJU to KMJ nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See CJU to KMJ on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Jeju City to Kumamoto nonstop Carriers operating CJU to KMJ nonstop in the current schedule. - [Air Seoul (RS) route map](https://2lnr.com/routes/airlines/rs.md)\ [The aircraft RS flies](https://2lnr.com/seatmaps/rs.md) See CJU to KMJ on the interactive map → ## Frequently asked questions about CJU to KMJ **How long is the flight from Jeju City (CJU) to Kumamoto (KMJ)?** RS 9285 is scheduled at 1h 25m from Jeju City (CJU) to Kumamoto (KMJ) on every departure in the schedule table on this page. The nonstop covers about 257 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from CJU to KMJ?** Air Seoul is currently the only airline flying CJU to KMJ nonstop. 2LNR doesn't show award or upgrade space for it on CJU to KMJ, so this page carries the schedule rather than a space claim. **How often does CJU to KMJ operate?** The CJU to KMJ nonstop currently runs twice a week, on Air Seoul. Thin schedules like this change by season, and on Pro an alert will catch anything added. **What time do flights from CJU to KMJ depart?** Scheduled CJU to KMJ nonstops in the next 2 days with service leave between 10:00 and 13:00, local time at Jeju City. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate CJU to KMJ nonstop?** Air Seoul flies RS 9285 nonstop from Jeju City (CJU) to Kumamoto (KMJ), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft. **Does 2LNR show upgrade or award space on CJU to KMJ?** Not on this route: 2LNR doesn't show award or upgrade space for Air Seoul on CJU to KMJ. The page carries the full CJU to KMJ nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [KMJ to CJU nonstop flights](https://2lnr.com/routes/kmj-cju.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Jeju City (CJU)](https://2lnr.com/routes/cju.md), or [every route from Kumamoto (KMJ)](https://2lnr.com/routes/kmj.md). Nonstops from Jeju City (CJU) to other airports within 150 miles of Kumamoto (KMJ): - [Jeju City (CJU) to Fukuoka (FUK)](https://2lnr.com/routes/cju-fuk.md), 57 miles from KMJ Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full CJU to KMJ nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)