Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Serangoon Int → Jurong East Int | 05:45 | 24:00 | 9–11 min | 7–13 min | 12–14 min | 11–14 min |
| Jurong East Int → Serangoon Int | 05:45 | 23:45 | 7–15 min | 8–15 min | 10–14 min | 11–15 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.