646Bus 646Opp Blk 662B ↔ Prince Edward Rd Stn Exit 2
Opp Blk 662B to Prince Edward Rd Stn Exit 2; Hub Synergy Pt to Blk 662B. 39 stops, run by Go-Ahead Singapore. On weekdays the first bus leaves Opp Blk 662B at 7:10 am and the last at 7:35 am.
DT31CC33NS27TE20DT17TE19CC32EW15EW14NS2610 MRT/LRT connections
Bus 646 towards Prince Edward Rd Stn Exit 219 stops
| # | Stop | Weekdays | Saturday | Sunday |
|---|---|---|---|---|
| 1 | Opp Blk 662B | 7:10 am – 7:35 am | – | – |
| 2 | Blk 660 CP | 7:12 am – 7:37 am | – | – |
| 3 | Opp Blk 614 | 7:15 am – 7:40 am | – | – |
| 4 | Opp Blk 609D | 7:16 am – 7:41 am | – | – |
| 5 | Blk 619A | 7:18 am – 7:43 am | – | – |
| 6 | Blk 522 CP | 7:20 am – 7:45 am | – | – |
| 7 | Blk 863 | 7:24 am – 7:49 am | – | – |
| 8 | Blk 855 | 7:26 am – 7:51 am | – | – |
| 9 | Blk 833 | 7:28 am – 7:53 am | – | – |
| 10 | Blk 888 | 7:31 am – 7:56 am | – | – |
| 11 | Springfield Sec Sch | 7:33 am – 7:58 am | – | – |
| 12 | Opp Temasek Poly West G | 7:35 am – 8:00 am | – | – |
| 13 | Opp Temasek Poly | 7:37 am – 8:02 am | – | – |
| 14 | Opp Temasek Poly East G | 7:39 am – 8:04 am | – | – |
| 15 | Tampines West Stn Exit B | 7:41 am – 8:06 am | – | – |
| 20 | Marina Bay Stn | 8:22 am – 8:47 am | – | – |
| 21 | Downtown Stn Exit E | 8:23 am – 8:48 am | – | – |
| 22 | UIC Bldg | 8:24 am – 8:49 am | – | – |
| 23 | Prince Edward Rd Stn Exit 2 | 8:25 am – 8:50 am | – | – |
Bus 646 towards Blk 662B20 stops
| # | Stop | Weekdays | Saturday | Sunday |
|---|---|---|---|---|
| 1 | Hub Synergy Pt | 6:15 pm – 6:30 pm | – | – |
| 2 | Aft Capital Twr | 6:18 pm – 6:33 pm | – | – |
| 3 | 80 Robinson Rd | 6:20 pm – 6:35 pm | – | – |
| 4 | The Sail | 6:24 pm – 6:39 pm | – | – |
| 5 | Marina Bay Financial Ctr | 6:25 pm – 6:40 pm | – | – |
| 10 | Bef Tampines West Stn | 7:15 pm – 7:30 pm | – | – |
| 11 | Temasek Poly East G | 7:16 pm – 7:31 pm | – | – |
| 12 | Temasek Poly | 7:17 pm – 7:32 pm | – | – |
| 13 | Temasek Poly West G | 7:18 pm – 7:33 pm | – | – |
| 14 | Opp Springfield Sec Sch | 7:19 pm – 7:34 pm | – | – |
| 15 | Blk 880 | 7:20 pm – 7:35 pm | – | – |
| 16 | Blk 882A | 7:21 pm – 7:36 pm | – | – |
| 17 | Opp Blk 853 | 7:21 pm – 7:36 pm | – | – |
| 18 | Bet Blks 701/702 | 7:23 pm – 7:38 pm | – | – |
| 19 | Blk 709 | 7:24 pm – 7:39 pm | – | – |
| 20 | Blk 602B | 7:25 pm – 7:40 pm | – | – |
| 21 | Blk 609D | 7:25 pm – 7:40 pm | – | – |
| 22 | Blk 614 | 7:26 pm – 7:41 pm | – | – |
| 23 | Opp Blk 660 CP | 7:27 pm – 7:42 pm | – | – |
| 24 | Blk 662B | 7:28 pm – 7:43 pm | – | – |
First and last bus are LTA's scheduled times at each stop, so they get later along the route. Sunday times also apply on public holidays. Live arrival times are on each stop's page. Data updated 2026-09-13.