The average bus between Impact Arena and Siam Square takes 51 min and the fastest bus takes 50 min. The bus runs at least 3 times per hour from Impact Arena 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 20 minutes between Impact Arena and Siam Square. The earliest departure is at 5:20 AM in the morning, and the last departure from Impact Arena is at 10:05 PM which arrives into Siam Square at 10:56 PM. All services require a transfer at Cosmo Bazaar and take an average of 51 min. The schedules shown below are for the next available departures.

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52 min • 1 changeWant to know about travelling from Impact Arena 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.
No, there is no direct bus from Impact Arena to Siam Square. However, there are services departing from Cosmo Bazaar station and arriving at Osotsala station via Soi Suan Ngoen station. The journey, including transfers, takes approximately 51 min.
Impact Arena to Siam Square bus services, operated by Bangkok Mass Transit Authority, depart from Cosmo Bazaar station.
Impact Arena to Siam Square bus services, operated by Thai Smile Bus, arrive at Osotsala station.
Book your Impact Arena to Siam Square bus tickets online with 12go.asia.
The distance between Impact Arena and Siam Square is 18.8 km. The road distance is 22 km.
You can take a vehicle from Impact Arena to Siam Square via Cosmo Bazaar, Soi Suan Ngoen, and Osotsala in around 1h 4m.