Cheap Hotels in Bangkok Cheap hotels in Bangkok can easily be found along Soi Rambuttri (just one minutes walk from Khao San Road), and along Phra Arthit Road that runs parallel to the Chao Phraya River. I visited 45 guesthouses and hotel in this area, ranging in price from 120 baht per night (about $3.5 US) up to 2,400 baht (about $60 US). Match the numbers on the map with the hotels/guesthous..