The average bus between Terminal 21 and Siam Square takes 11 min and the fastest bus takes 10 min. The bus runs at least 9 times per hour from Terminal 21 to Siam Square. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 10 minutes between Terminal 21 and Siam Square. The earliest departure is at 5:13 AM in the morning, and the last departure from Terminal 21 is at 11:09 PM which arrives into Siam Square at 11:20 PM. All services run direct with no transfers required, and take on average 11 min. The schedules shown below are for the next available departures.
Want to know about travelling from Terminal 21 to Siam Square? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
Yes, there is a direct bus departing from Terminal 21 station and arriving at Siam Square station. Services depart every 10 minutes, and operate Twice daily. The journey takes approximately 11 min.
Terminal 21 to Siam Square bus services, operated by Bangkok Mass Transit Authority, depart from อาคารไทม์สแควร์;Times Square Building Mall station.
Terminal 21 to Siam Square bus services, operated by Bangkok Mass Transit Authority, arrive at สยามสแควร์;Siam Square station.
The distance between Terminal 21 and Siam Square is 3.1 km. The road distance is 4 km.
Thai Smile Bus operates a bus from อาคารไทม์สแควร์;Times Square Building Mall to สยามสแควร์;Siam Square every 10 minutes, and the journey takes 11 min. Bangkok Mass Transit Authority also services this route every 20 minutes.