Air Busan's official policy charges route-dependent one-way excess baggage fees when checked bags exceed the free allowance. The schedule for tickets issued from 8 September 2025 lists KRW 3,000 per kg on domestic flights, KRW 2,000 per kg on Jeju routes and KRW 12,000 per kg on Japan routes. Other routes have different rates. A separate fee applies if baggage beyond the cabin allowance is checked at the boarding gate instead of the check-in counter. The operator lists KRW 20,000 for the first such bag and KRW 100,000 for the second, but gate acceptance can be refused according to conditions. Check older ticket issue dates, departures outside Korea and connecting journeys separately. Air Busan also says gate-checking is unavailable at selected Chinese airports, including Qingdao, Zhangjiajie, Yanji, Sanya and Xi'an.