Korean Air will operate extra Jeju–Gimpo “red-eye” services on 28 and 29 September after Chuseok return traffic sold out evening cabins, with load factors on the last conventional departures topping 98 percent and standby lists stranding island workers who must clock in Monday in Seoul. The carrier parked two Boeing 737-800s at Gimpo to rotate midnight legs without cannibalizing long-haul maintenance slots at Incheon.
Schedule and capacity
New flights depart Jeju at 00:40 and 01:10, arriving Gimpo before 02:30—late enough for holiday diners to finish family visits, early enough for a few hours of sleep before office hours. Korean Air said pricing follows dynamic buckets but caps last-seat fares below peak Friday afternoon levels to reduce scalping on third-party aggregators. Jeju airport authorities extended security lanes to 01:30 and added bus shuttles to downtown guesthouses for travelers who misconnect from inter-island ferries delayed by weather.
Why Jeju fills last
Provincial tourism data show Chuseok week hotel occupancy above 92 percent, with many Seoul households treating the island as a compressed beach break before autumn school terms. Low-cost rivals added daytime frequencies but avoided midnight crew costs; Korean Air’s wide domestic network let it swap aircraft from Busan and Ulsan routes that quieten after the holiday. Rental-car returns peaked Sunday afternoon, clogging Jeju’s single-runway approach paths and pushing some passengers to the extra airlift rather than risk Monday morning ferries in possible swell.
Airport logistics
Gimpo’s curfew is lighter than Incheon’s, but noise rules still limit engine tests after 01:00; ground handlers will use single-engine taxi where permitted. Parking at Gimpo short-term lots fills quickly when midnight banks arrive—transit passengers should prebook or use the AREX link if connecting internationally the same morning. Baggage claims may slow because the same belt serves late arrivals from Okinawa charter season; Korean Air asked travelers to carry medications in cabin bags when checking roller bags on packed 737s.
Booking tips
If you hold a sold-out Sunday ticket, call the carrier before accepting unofficial resale—name changes are restricted on domestic promo fares. Families with children should note no meal service on 70-minute legs; convenience stores inside Jeju terminal stay open for the new departures. Weather diversions to Cheongju remain possible in autumn fog; Korean Air will bus passengers to Seoul if Jeju closes, but midnight add-ons are the first choice while island runways stay open. Act fast: seat maps already show narrow aisle availability on the 28 September rotation.
Industry analysts said the red-eye experiment tests whether corporate travel budgets will fund overtime crews when holidays compress return windows. If midnight legs sell profitably, Korean Air may keep one rotation on shoulder weekends after Chuseok, competing with high-speed rail promotions on the Honam line. For now, the message to stranded islanders is concrete: two extra departures, real aircraft on the ramp, and a chance to sleep in your own bed before Monday meetings—not another sold-out standby board.