(SA City Line)
This line provides service between Phyathai Station to the end terminal at Suvarnabhumi Airport within 30 minutes, which stops at 6 stations along the way such as Rajprarop Station, Makkasan Station, Ramkhamhaeng Station, Hua Mark Station, Thab Chang Station, and Lad Krabang Station. It covers a distance of 28 kilometers.

SA City Line has 5 trains, each train has 3 passenger cars with the capacity of 745 passengers per train. It provides service from 06.00 to 24.00
 
     
Phyathai Station
เThis is the originating terminal of the SA City Line, which is located east of Phyathai Road linking Phyathai BTS Station.		   Rajprarop Station
This station is located on Rajprarop Road intersecting Nikommakkasan Road closed to Pratunam, of which nearby area will be developed into a new major business and trade center in the future.
     
 
     
Bangkok City Air Terminal
(Makkasan Station)

BCAT is the originating point of the SA Express Line as well as a station for the SA City Line, which has many facilities such as check-in counter service that passengers can check-in and load their baggage to the baggage car which provides convenience of transferring baggage to various airlines.

   Ramkhamhaeng Station
This station is located adjacent to Ramkhamhaeng Road at Klong Ton Intersection closed to Ramkhamhaeng University, Assumption University, Rajamangala National Stadium, and shopping center within 2.5-km radius.