Bangkok to Hua Hin
A trip takes up to 2 hours and a half. A van carries 11 seats. Passengers get on the vehicle in front of Ratchawitee Hospital near the Victory Monument, a downtown accessible by several bus lines and BTS skytrain.
The first van leaves the hub at 6AM, and the last van at 7PM. 180 baht per seat. There is a van leaving for Bangkok every 15 minutes.  Passengers get off at the van station housed on the ruined ground of what used to be the Hua Hin Cinema, in the alley opposite to PTT gas station. View the map at the bottom of this page.

Hua Hin to Bangkok
A trip takes up to 2 hours and a half. A van carries 11 seats. Passengers get on the vehicle at the Hua Hin-based van hub aforementioned. Refer to the hub as “Tar-Rot-Too” or “Rong-Nung-Gao-Hua-Hin” in Thai to your chauffer.
 The first van leaves Hua Hin at 6AM, and the last van at 6PM. 180 baht per seat. There is a van leaving for Bangkok every 15 minutes.  Passengers get off at Ratchawitee Hospital near the Victory Monument as well.