Air Busan's official baggage guide allows one cabin bag per person weighing no more than 10 kg. The three dimensions must total no more than 115 cm and each side must stay within 40 × 20 × 55 cm, including handles and wheels. One small handbag or laptop bag may be allowed subject to separate size rules. On domestic flights, special promotional fares have no free checked allowance, while Smart and Regular fares generally include 15 kg for adults and children. International promotional or event fares may have no checked allowance; other international and US-route fares follow different weight and piece rules. Always check the exact fare and destination on your booking.