Every practical way to make this trip, cheapest and simplest first.
Walk from the terminal to Airport Station on the Busan-Gimhae Light Rail and ride it to Sasang Station. Change there to Busan Metro Line 2 and stay on to Centum City Station. Come out at Exit 1 and Exhibition Center 1 is about 50 m in front of you; for Exhibition Center 2, get off one stop later at BEXCO Station instead.
about 55 min · about KRW 1,800 on a transport card · Cheap, and immune to Busan's traffic.
Take city bus 307 from outside the terminal — it runs all the way to BEXCO with no changes. Get off at the BEXCO stop, numbered 09-335, which is right beside Exhibition Center 1. It is the cheapest option but also much the slowest.
about 88 min · about KRW 1,200 · Travelling light with time to spare and no wish to change trains.
Taxi ranks sit outside both the domestic and international terminals. Show the driver 벡스코 or the address 부산 해운대구 APEC로 55. It is about 31 km across the city, so allow longer in the peaks; deluxe and larger taxis cost roughly half as much again.
about 60 min · about KRW 44,000 · Arriving with stand materials, or a team of three sharing.
T-money, Cashbee and Mybi cards all work on Busan transit, and since September 2025 a card transfer between the light rail and the metro is free — but only if you tap both in and out.
Gimhae Airport (PUS) → BEXCO, Busan →
Incheon Airport (ICN) → BEXCO, Busan →