Korean Air flights from Seoul to Jeju
Weather by month: Seoul and Jeju
| Month | Seoul | Jeju |
|---|---|---|
| January | -2°C · 19 mm | 5°C · 78 mm |
| February | -3°C · 4 mm | 4°C · 122 mm |
| March | 6°C · 45 mm | 11°C · 137 mm |
| April | 12°C · 103 mm | 14°C · 96 mm |
| May | 17°C · 103 mm | 18°C · 179 mm |
| June | 23°C · 101 mm | 23°C · 154 mm |
| July | 28°C · 234 mm | 27°C · 161 mm |
| August | 27°C · 205 mm | 28°C · 223 mm |
| September | 22°C · 298 mm | 26°C · 174 mm |
| October | 15°C · 159 mm | 21°C · 210 mm |
| November | 7°C · 16 mm | 13°C · 75 mm |
| December | -1°C · 46 mm | 8°C · 70 mm |
Average temperature and total rainfall per month, last full year.
About Korean Air flights from Seoul to Jeju
Korean Air operates flights from Seoul to Jeju, connecting Gimpo International Airport (GMP) with Jeju International Airport (CJU). This route covers 455 kilometers and typically takes 75 minutes of flight time. The airline usually flies this route non-stop, making it a convenient option for both leisure and business travelers heading to South Korea's popular island destination.
Fares tend to be lowest in September. Korean Air includes one checked bag of up to 23 kg in economy fares. Online check-in opens 48 hours before departure and closes 60 minutes before flight time, allowing passengers to complete this step well in advance of their journey.
Airports on this route
| Departure | Gimpo International Airport (GMP) |
|---|---|
| Arrival | Jeju International Airport (CJU) |
| Flight time | 1 h 15 min (estimated) |
| Distance | 455 km |
Checked bag in Economy: 1 piece, 23 kg (51 lb).
| Item | Allowance | Details |
|---|---|---|
| Cabin bag | 1 piece | |
| Personal item | included | small bag under the seat |
| Checked baggage - Economy | 1 piece · 23 kg (51 lb) | included in the fare |
| Checked baggage - Business | 2 pieces · 32 kg (71 lb) | included in the fare |
| Checked baggage - First | 3 pieces · 32 kg (71 lb) | included in the fare |
| Extra bag | from 200 USD | cheaper when added online in advance |
| Overweight fee | from 100 USD | per bag above the allowance |
Basic Economy allowance on most routes; premium fares and some destinations get more. Weights are shown in kilograms with pounds in brackets, sizes in centimetres with inches in brackets. Always confirm on the official website before travelling.
Korean Air online check-in opens 2 days before departure and closes 1 h before departure. Online check-in is free.
| Online check-in opens | 2 days before departure |
|---|---|
| Online check-in closes | 1 h before departure |
| Airport counters close | 1 h before departure |
| Check-in fee | online check-in is free |
| Boarding pass | mobile boarding pass, print at home |
| Mobile app check-in | available |
| Self-service kiosks | available |
Times apply to most routes; long-haul, US and some airport-specific deadlines differ. Confirm on the official website before travelling.