Operated by SMRT
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Choa Chu Kang Int → Choa Chu Kang Int | 05:30 | 01:05 | 5 min | 4–6 min | 3–5 min | 5–10 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.