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ESR261

GMP → CJU · Boeing 737-800 · Korean Air

For travellers

Departure · Seoul (GMP)

Gate 12
Scheduled 06:10 · Departed 06:25 · +15 min
Board status: Departed
Airborne since 06:24 (ADS-B)

Arrival · Jeju City (CJU)

Gate 1
Scheduled 07:25 · Landed 07:16 · early
Board status: Arrived
Landed 07:16 (airport data)

Board data from cju, gmp, updated 38 min ago; times local to each airport.

Flight

Status
Completed (landing confirmed by airport data)
Arrival confirmed via
Airport data (confirmed)
Departure
Gimpo International Airport (GMP) — Seoul, South Korea
Scheduled departure
2026-10-03 21:10 UTC
Departed
2026-10-03 21:24 UTC
Arrival
Jeju International Airport (CJU) — Jeju City, South Korea
Scheduled arrival
2026-10-03 22:25 UTC
Estimated arrival
2026-10-03 22:13 UTC
Also flies as
ZE261
Distance flown
383 km
Straight-line distance
451 km

Aircraft

Registration
HL8587
Type
Boeing 737-800
Seats
147 total (135 Economy, 12 Prestige) (typical for type, not this tail)
CO2 (EMEP est., total)
10.5 t (105 kg/pax Business, 51 kg/pax Economy)

Altitude & speed

Max altitude
22,000 ft
Max ground speed
419 kt
Tracked
35m · 381 km
Altitude (ft, max 22,000)
011,88023,7600m30m
Ground speed (kt, max 419)
02264530m30m
Altitude (ft, max 22,000)
011,88023,7600m
Ground speed (kt, max 419)
02264530m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airlines

Eastar Jet (ESR)
Korean Air (KAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-03 21:24 UTC ESR261 GMP → CJU
Seoul → Jeju City
 HL8587 Boeing 737-800 Completed (landing confirmed by airport data) ~497 km est. (383 km recorded)
2026-10-02 21:28 UTC ESR261 GMP → CJU
Seoul → Jeju City
 HL8784 Boeing 737 MAX 8 Completed (landing confirmed by airport data) ~517 km est. (406 km recorded)
2026-09-26 21:24 UTC ESR261 GMP → ?
Seoul → ?
 HL8764 Boeing 737 MAX 8 Incomplete (signal lost) 398 km
2026-09-25 21:35 UTC ESR261 GMP → ?
Seoul → ?
 HL8764 Boeing 737 MAX 8 Incomplete (signal lost) 385 km
2026-09-23 21:30 UTC ESR261 GMP → ?
Seoul → ?
 HL8784 Boeing 737 MAX 8 Incomplete (signal lost) 422 km
2026-09-22 21:31 UTC ESR261 GMP → ?
Seoul → ?
 HL8784 Boeing 737 MAX 8 Incomplete (signal lost) 429 km
2026-09-21 21:21 UTC ESR261 GMP → ?
Seoul → ?
 HL8784 Boeing 737 MAX 8 Incomplete (signal lost) 419 km

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