The bus between Terminal 21 and Si Lom Road takes 24 min. The bus runs at least 3 times per hour from Terminal 21 to Si Lom Road. 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 20 minutes between Terminal 21 and Si Lom Road. The earliest departure is at 5:36 AM in the morning, and the last departure from Terminal 21 is at 10:21 PM which arrives into Si Lom Road at 10:46 PM. All services require a transfer at Soi Cowboy and take an average of 24 min. The schedules shown below are for the next available departures.

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24 min • 1 changeWant to know about travelling from Terminal 21 to Si Lom Road? 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.
No, there is no direct bus from Terminal 21 to Si Lom Road. However, there are services departing from Soi Cowboy station and arriving at Opposite Narai Hotel station via Opposite Chulalongkorn Hospital station. The journey, including transfers, takes approximately 24 min.
Terminal 21 to Si Lom Road bus services, operated by Thai Smile Bus, depart from Soi Cowboy station.
Terminal 21 to Si Lom Road bus services, operated by Bangkok Mass Transit Authority, arrive at Opposite Narai Hotel station.
Book your Terminal 21 to Si Lom Road bus tickets online with 12go.asia.
The distance between Terminal 21 and Si Lom Road is 4.2 km.
You can take a vehicle from Terminal 21 to Si Lom Road via Soi Cowboy, Opposite Chulalongkorn Hospital, and Opposite Narai Hotel in around 25 min.