Operated by SMRT
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Choa Chu Kang Int → Opp Choa Chu Kang Stn | 06:16 | 01:05 | 10–15 min | 10–32 min | 10–12 min | 10–34 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.