Operated by SMRT
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Choa Chu Kang Int → Bt Panjang Int | 05:30 | 00:30 | 10–15 min | 12–17 min | 15 min | 14–18 min |
| Bt Panjang Int → Choa Chu Kang Int | 05:50 | 00:50 | 10–15 min | 13–17 min | 15 min | 15–16 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.