Like most backpackers, I usually stay in Khao San Road when I am in Bangkok. Many people go out of their way to avoid the area, but if you are just looking for a cheap place to stay for a night or two, you can’t go wrong. It is also a convenient area for sights like the Grand Palace.
The downside is that it isn’t near a subway or train station. This time I decided to see if there were any budget options, that were close to the BTS.
Most hotels in the Sukumvit area aren’t cheap. The cheapest place I could find was Suk 11. It is a short walk if you take airport bus and close to Nana station.
A single room is 500 baht and 650 baht for a single room with ensuite bathroom. The rooms are basic, but clean and comfortable. They even include breakfast and the common areas are good for meeting other travelers.
It seems to be pretty popular place, so I would recommend booking in advance (no payment required).