Korean Air· Callsign KAL1201 ·Daily

KE1201 GMP → CJU

The Seoul Gimpo-Jeju corridor is the busiest airline route in the world by passenger volume.

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Status on this page means observed ADS-B activity inside available receiver coverage. Confirm official delay, cancellation, gate and booking status with Korean Air.

GMP
Seoul
Gimpo International Airport
07:05 KST (UTC+9)
1h 10m
451 km · 280 mi
Non-stop
CJU
Jeju
Jeju International Airport
08:15 KST (UTC+9)
Typical schedule · next departure Thursday, July 30 · times shown in airport local time
Aircraft
Boeing 777-300
typical equipment
Distance
451 km
243 nautical miles
Heading
184°
tracks south
Clock change
0 h
same time zone
Block speed
386 km/h
gate to gate average
Length rank
#247
of 255 tracked routes

Follow KE1201 in real time

The aircraft appears below whenever it is airborne and inside receiver coverage. Its planned route is drawn between the two airports.

KE1201 is not transmitting right now. It may be between rotations, on the ground, or out of receiver range - Check back near 07:05 at GMP. The full map has the rest of the sky.

KE1201 at a glance

  • The trip: 451 km (280 miles) from Seoul to Jeju, flying south.
  • How long: 1h 10m gate to gate. That is about 386 km/h on average, taxi time included.
  • The plane: usually a Boeing 777-300.
  • Your watch: no change, both cities share a clock.
  • Window seat tip: either side works on this heading.
  • When it goes: out of GMP in early morning, into CJU in early morning.

KE1201 route overview: GMP to CJU

KE1201 distance and great-circle path

KE1201 covers 451 km, or 280 miles. That makes it a short-haul flight, a single-aisle hop where turnaround time matters more than range. Of the 255 routes we track, it ranks 247 by distance.

The plane leaves Seoul heading south. On the map above, the line looks curved. That is normal. The shortest path over a round planet never looks straight on a flat screen. Our guide explains how the GMP–CJU route appears on a tracker map.

Why KE1201 block time differs from cruise time

The schedule allows 1.2 hours from gate to gate. That works out to about 386 km/h. A Boeing 777-300 cruises faster than that. The gap is taxi time, climbing, descending and holding.

Winds aloft shift the real flight time by up to an hour in either direction. See what really moves flight times.

What to know about KE1201

  • Time change: none. Both cities keep the same clock, so arrival time reads exactly as you expect.

KE1201 activity in the past 7 days

No stored observation has been recorded in this seven-day window. The published schedule and route above remain reference data, not evidence that the flight operated.

Date (UTC)RouteFirst trackedLast trackedTracked for
No tracked activity recorded yet for the past 7 days. Activity is logged every time this flight appears on the live map.

“First/last tracked” are when KE1201 entered and left receiver coverage, in UTC.

Airports and aircraft on KE1201

Every scheduled service we follow is listed in the tracker directory, including Korean Air and other tracked flights grouped by airline.

GMP Gimpo International Airport Seoul, South Korea · live radar → CJU Jeju International Airport Jeju, South Korea · live radar →

Guides relevant to KE1201

Chosen from this route's distance, timing, aircraft, airline and airports.

How airlines plan routes This short-haul sector shows how aircraft size and local demand shape a network. Airline alliances explained Korean Air belongs to SkyTeam, which affects connections and codeshares. Where live flight data comes from Understand what the map can observe and why coverage sometimes disappears.

Data sources and review

Reviewed 2026-07-29 by Flight-Tracker.net Editorial Team

The route and typical schedule are maintained reference data. Live ADS-B observations are evidence of receiver coverage, not proof of on-time performance. Always confirm the operating date and times with the airline.

Read our schedule and observation review process, or inspect the machine-readable reference dataset.

KE1201 frequently asked questions

How long is the KE1201 flight?

Seoul to Jeju is 451 km (280 miles) in a straight line, scheduled at 1.2 hours gate to gate. Actual airborne time varies with winds, routing and holding.

What aircraft operates KE1201?

Typically a Boeing 777-300.

Does KE1201 fly every day?

The published pattern is daily, departing 07:05 local from GMP. Always confirm with the airline before travelling.

Can I track KE1201 live?

Yes. Whenever KE1201 is airborne and in receiver coverage the map above follows it live, with altitude, ground speed and heading. Between rotations, the seven-day log above shows where it has been.

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