Buses are a popular mode of travel in Bangkok. Using the bus is advanatgeous since the entire city of Bangkok is covered by the bus network. Prices are extremely reasonable and most of these buses are air-conditioned. The price ranges from 6 Baht to 20 Baht depending on the distance traveled. The cheapest buses cost 3.5 baht and are not air conditioned.

Buses to destinations outside Bangkok are found at three main bus terminals. Northern/Northeast Bus Terminal often referred to as Morsit, serves Chiang Mai and the north. The Southern Bus Terminal on the Thonburi side of the river, is for Hua Hin, Koh Samui, Phuket and points south. The Eastern Bus Terminal (Ekkamai) located on Sukhumvit Road, Soi 40 is for Pattaya, Koh Samet, Koh Chang and points southeast, to Rayong and Trat province.