Air Seoul's official priority baggage option is priced at ₩3,000 per bag on domestic flights and ₩5,000 on international flights. It can be purchased only on departure day at the airport, and is nonrefundable after purchase, including flight delays. Wheelchairs, strollers, medical equipment and sports baggage may receive handling priority, so your bag is not guaranteed to emerge first. Airport facilities can also delay baggage delivery. Packaging supplies are separate airport products.