The first low-fare promotion expired in June this year.
SRTET president Suthep Pangpeng said the aim was to ease the cost of living for people in line with Transport Minister Saksayam Chidchob’s policy.
SRT board is expected to consider the proposal this month.
The proposal is to cut fares from between Bt15-Bt45 to Bt15-Bt25 for Smart Pass holders (adults) during the off-peak hours of 5.30am to 7am, 10am to 5pm and 8pm to midnight on weekdays.
Passengers travelling to one station will be charged Bt15, two stations Bt20, while a flat rate of Bt25 will be applied to travel beyond three stations.