CJU to GMP: Distance and Flight Time
The distance from Jeju International Airport (CJU) to Gimpo International Airport (GMP) is 451 km (280 mi). A typical nonstop flight covers it in about 1h 5m, heading north. The distance is the same in either direction (GMP to CJU).
How far is it from Jeju City to Seoul?
The great-circle distance between Jeju International Airport (CJU) and Gimpo International Airport (GMP) is 451 km (280 mi, 243 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from CJU to GMP?
A nonstop flight typically takes about 1h 5m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. GMP is roughly north of CJU.
How is the CJU to GMP route written in code?
The pair is written CJU-GMP in IATA codes and RKPC-RKSS in ICAO codes, the form used on a flight plan. Jeju International Airport is CJU (RKPC), Gimpo International Airport is GMP (RKSS).
| CJU | GMP | |
|---|---|---|
| Airport | Jeju International Airport | Gimpo International Airport |
| ICAO code | RKPC | RKSS |
| Country | South Korea | South Korea |
| Elevation | 118 ft | 59 ft |
| Rank by connections | #274 | #380 |
Both ICAO codes start with R, the prefix ICAO assigns to East Asia, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
The two fields sit at almost the same height, within 59 ft (18 m) of each other.
Airlines flying CJU to GMP
6 airlines appear on this route in the open route dataset, 6 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| 7C | Jeju Air | JJA | Jeju Air | Active |
| KE | Korean Air | KAL | Koreanair | Active |
| LJ | Jin Air | JNA | Jin Air | Active |
| OZ | Asiana Airlines | AAR | Asiana | Active |
| TW | Tway Airlines | TWB | Tway Air | Active |
| ZE | Eastar Jet | ESR | Eastar | Active |
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Jeju City from Seoul?
Jeju International Airport (CJU) and Gimpo International Airport (GMP) are 451 km (280 mi, 243 nautical miles) apart in a straight line.
How long is the flight from CJU to GMP?
A typical nonstop flight between CJU and GMP takes about 1h 5m. Actual times vary with aircraft type, winds and routing.
What direction is GMP from CJU?
Gimpo International Airport (GMP) lies roughly north of Jeju International Airport (CJU).
Which airlines fly CJU to GMP?
6 airlines appear on the CJU-GMP route in the open dataset, including Jeju Air, Korean Air, Jin Air.
Related routes
Other routes from Jeju City (CJU):
Other routes from Seoul (GMP):
CJU airport code · GMP airport code · Busiest airports worldwide