The Seoul to Jeju City route connects Gimpo International Airport (GMP) in KR with Jeju International Airport (CJU) in KR. This short-haul flight covers approximately 280 miles (451 km) with a typical flight time of 54m. This route is served by 10 airlines: Asiana, Jeju Air, Korean Air and others. AirportRoutes has tracked 162 unique flight numbers on this route.
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The Seoul Gimpo (GMP) → Jeju City (CJU) air route spans about 280 miles (451 km), linking South Korea’s capital region with its most popular island getaway. It’s one of the country’s busiest corridors because it turns a long overland-and-ferry journey into a quick hop, with typical flight times around 1 hour to 1 hour 15 minutes. Travelers choose it for weekend breaks, beach and hiking escapes, and easy access to Jeju’s UNESCO-listed landscapes. With frequent daily departures, the route suits both leisure and business travelers, offering flexibility for early-morning outbound flights and late-evening returns. Jeju’s mild coastal climate and distinct island culture make the short flight feel like a true change of scenery.
Book early for weekends and holidays; fares often rise sharply close to departure. Typical one-way prices range around KRW 30,000–120,000 (about USD 23–92) depending on season and baggage. Gimpo (GMP) is closer to central Seoul than Incheon, so plan for subway or taxi time and aim to arrive 60–90 minutes before departure. Check your terminal and gate early—GMP can be busy during peak Jeju waves. Expect light turbulence over the strait at times and a quick service window due to the short flight. If you’re traveling with bags, compare low-cost carrier rules carefully; prepaying baggage online is usually cheaper than paying at the airport.
Jeju City is the island’s main gateway, combining coastal scenery with markets, museums, and easy day-trip access. Stroll the Yongduam (Dragon Head Rock) waterfront, browse stalls at Dongmun Traditional Market, and sample fresh tangerines, grilled seafood, and black pork. For culture, visit Jeju Folklore-themed museums and coastal promenades near Tapdong. The city is also a practical base for exploring farther afield: buses and tours connect to Hallasan National Park, lava-tube sites, and shoreline viewpoints. Popular areas to stay include downtown near the intercity bus terminal for transit convenience, or the waterfront for evening walks and dining. Jeju’s café scene and sunset views round out an easy, walkable itinerary.
For comfortable weather and scenery, April–June and September–October are ideal, with mild temperatures and generally clear days. July–August brings peak demand, higher fares, and humidity; typhoon disruptions are most likely in late summer. Winter is quieter and often cheaper, though wind can be brisk. Expect the highest prices around Korean school holidays and major travel periods; off-peak midweek flights can be noticeably less expensive. Notable seasonal draws include spring blossoms and autumn hiking conditions around Hallasan.
RKSSGMPRKPCCJU10
Operators162
Tracked Flights280
Miles54m
Flight Duration
| Airline | ICAO | IATA |
|---|---|---|
| Asiana |
AAR
|
OZ
|
| Jeju Air |
JJA
|
7C
|
| Korean Air |
KAL
|
KE
|
| Tway Air |
TWB
|
TW
|
| Jin Air |
JNA
|
LJ
|
| Eastarjet |
ESR
|
ZE
|
| Air Seoul |
ASV
|
RS
|
| Air Busan |
ABL
|
BX
|
| Platinum Airways |
PTA
|
WE
|
| Trans States Airlines |
THD
|
WE
|
| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 346 | 16% |
|
| Tuesday | 317 | 15% |
|
| Wednesday | 303 | 14% |
|
| Thursday | 351 | 16% |
|
| Friday | 335 | 16% |
|
| Saturday | 267 | 12% |
|
| Sunday | 219 | 10% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Air Busan
ABL
/ BX
|
|
A320 | 07:10 7:10 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
|
Air Seoul
ASV
/ RS
|
A321 | 06:00 6:00 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active | |
|
Asiana
AAR
/ OZ
|
|
A321 | 06:40 6:40 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
|
Eastarjet
ESR
/ ZE
|
|
B738 | 07:40 7:40 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
|
Jeju Air
JJA
/ 7C
|
|
B738 | 07:35 7:35 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
|
Jin Air
JNA
/ LJ
|
|
B738 | 07:25 7:25 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
|
Korean Air
KAL
/ KE
|
|
B739 | 07:20 7:20 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
|
Platinum Airways
PTA
/ WE
|
A320 | 06:00 6:00 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active | |
|
Trans States Airlines
THD
/ WE
|
A320 | 06:05 6:05 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active | |
|
Tway Air
TWB
/ TW
|
|
737 | 06:50 6:50 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 3, 2026 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 06:00 6:00 AM | Air Seoul |
ASV
|
RS
|
| 06:00 6:00 AM | Platinum Airways |
PTA
|
WE
|
| 06:05 6:05 AM | Trans States Airlines |
THD
|
WE
|
| 06:40 6:40 AM | Asiana |
AAR
|
OZ
|
| 06:50 6:50 AM | Tway Air |
TWB
|
TW
|
| 07:10 7:10 AM | Air Busan |
ABL
|
BX
|
| 07:20 7:20 AM | Korean Air |
KAL
|
KE
|
| 07:25 7:25 AM | Jin Air |
JNA
|
LJ
|
| 07:35 7:35 AM | Jeju Air |
JJA
|
7C
|
| 07:40 7:40 AM | Eastarjet |
ESR
|
ZE
|
Time Information
Times are shown in the departure airport's local timezone (RKSS - Asia/Seoul).