Direct bus from Incheon Airport Terminal 1 to Busan?

Hey guys,
We’re traveling to Korea this week and sadly, the KTX tickets are sold out for the time we want to travel to Busan but our hotels are already booked.

I saw in another reddit thread that you can take a direct bus from the international airport to Busan? Can anyone confirm this? And do I have to buy the tickets on site or can we book online somewhere?

Thanks!

reddit.com
u/These-Fortune-6763 — 3 months ago