Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Boon Lay Int → Bt Merah Int | 05:30 | 23:45 | 5–6 min | 8–12 min | 8–9 min | 5–15 min |
| Bt Merah Int → Boon Lay Int | 05:30 | 23:45 | 7–8 min | 5–12 min | 7–10 min | 11–16 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.