There are 4 ways to get from Siam Square to Terminal 21 by tram, bus, taxi, or foot
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Siam Square to Terminal 21 by foot and tram
Comparing Your Travel Options
The cheapest way to get from Siam Square to Terminal 21 is to bus which costs ฿17 - ฿24 and takes 18 min.
The fastest way to get from Siam Square to Terminal 21 is to taxi which takes 3 min and costs ฿75 - ฿90.
Yes, there is a direct bus departing from Siam Center and arriving at Robinsonsukhumvit. Services depart every 10 minutes, and operate every day. The journey takes approximately 12 min.
Yes, there is a direct train departing from Bts Siam and arriving at Bts Asok. Services depart every 10 minutes, and operate every day. The journey takes approximately 10 min.
The distance between Siam Square and Terminal 21 is 3 km.
The best way to get from Siam Square to Terminal 21 without a car is to tram which takes 14 min and costs ฿16 - ฿60.
The tram from Bts Siam to Bts Asok takes 10 min including transfers and departs every 10 minutes.
Siam Square to Terminal 21 bus services, operated by Thai Smile Bus, depart from Siam Center station.
Siam Square to Terminal 21 train services, operated by BTS Skytrain, depart from Bts Siam station.
Siam Square to Terminal 21 bus services, operated by Thai Smile Bus, arrive at Robinsonsukhumvit station.
What companies run services between Siam Square, Thailand and Terminal 21, Thailand?
BTS Skytrain operates a vehicle from Bts Siam to Bts Asok every 10 minutes. Tickets cost ฿16–60 and the journey takes 10 min. Alternatively, Thai Smile Bus operates a bus from Siam Center to Robinsonsukhumvit every 10 minutes. Tickets cost ฿17–23 and the journey takes 12 min. Bangkok Mass Transit Authority also services this route every 20 minutes.
- Phone
- +66 2617 7300
- [email protected]
- Website
- BTS Skytrain
Tram from Bts Siam to Bts Asok
- Ave. Duration
- 10 min
- Frequency
- Every 10 minutes
- Estimated price
- ฿16–60
- Schedules at
- BTS Skytrain
- Phone
- +66 2-405-9789
- Website
- Thai Smile Bus
Bus from Siam Center to Robinsonsukhumvit
- Ave. Duration
- 12 min
- Frequency
- Every 10 minutes
- Estimated price
- ฿17–23
- Schedules at
- Thai Smile Bus
- Phone
- 1348
- [email protected]
- Website
- Bangkok Mass Transit Authority
Bus from Siam Center to Robinsonsukhumvit
- Ave. Duration
- 16 min
- Frequency
- Every 20 minutes
- Estimated price
- ฿17–24
- Schedules at
- Bangkok Mass Transit Authority
- Ave. Duration
- 3 min
- Estimated price
- ฿75–90
All Thai taxi
- Phone
- +66 2 018 9799
- Website
- allthaitaxi.com
GoodTaxiThai
- Phone
- +66 85 046 6356
- Website
- goodtaxithai.com
Grab Taxi
- Website
- grab.com
Tom Taxi Services
- Phone
- +66 98 281 2537
- Website
- tomtaxiservice.com
Want to know more about travelling around the world?
Rome2Rio's Travel Guide series provide vital information for the global traveller. Read our range of informative guides on popular transport routes and companies - including Train travel in Spain: A guide to Renfe, Travelling to the UK: What do I need to know?, and How to get from Heathrow Airport into central London - to help you get the most out of your next trip.
Booking & Getting There
Siam Square to Terminal 21 train services, operated by BTS Skytrain, arrive at Bts Asok station.
Book your Siam Square to Terminal 21 bus tickets online with 12go.asia.
There are 5993+ hotels available in Terminal 21.




