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For AMBUR to GUDIYATHAM TNSTC bus timings and Ticket Booking, please visit the official TNSTC Reservation Centre for the latest and reliable information on schedules, routes, and ticket prices Tamil Nadu operates this center, and you can also check as a traveler SETC online bus booking and obtain information on SETC bus timings and fares.
| Route | Source | Source Time | Destination | Destination Time | Class | STU |
| 80 A | AMBUR | 5:45:00 | GUDIYATHAM | 7:00:00 | EXP | TNSTC-VPM |
| A 5 A | AMBUR | 4:20:00 | GUDIYATHAM | 5:20:00 | ORD | TNSTC-VPM |
| A 5 A | AMBUR | 6:50:00 | GUDIYATHAM | 7:50:00 | ORD | TNSTC-VPM |
| A 5 A | AMBUR | 10:05:00 | GUDIYATHAM | 11:05:00 | ORD | TNSTC-VPM |
| A 5 A | AMBUR | 12:25:00 | GUDIYATHAM | 13:20:00 | ORD | TNSTC-VPM |
| A 5 A | AMBUR | 14:55:00 | GUDIYATHAM | 15:55:00 | ORD | TNSTC-VPM |
| A 5 A | AMBUR | 18:30:00 | GUDIYATHAM | 19:30:00 | ORD | TNSTC-VPM |
| A 5BA | AMBUR | 4:45:00 | GUDIYATHAM | 6:00:00 | ORD | TNSTC-VPM |
| A 5BA | AMBUR | 7:50:00 | GUDIYATHAM | 9:10:00 | ORD | TNSTC-VPM |
| A 5BA | AMBUR | 10:40:00 | GUDIYATHAM | 12:00:00 | ORD | TNSTC-VPM |
| A 5BA | AMBUR | 13:50:00 | GUDIYATHAM | 15:15:00 | ORD | TNSTC-VPM |
| A 5BA | AMBUR | 17:35:00 | GUDIYATHAM | 18:55:00 | ORD | TNSTC-VPM |
| A 5BB | AMBUR | 6:20:00 | GUDIYATHAM | 7:40:00 | ORD | TNSTC-VPM |
| A 5BB | AMBUR | 9:15:00 | GUDIYATHAM | 10:35:00 | ORD | TNSTC-VPM |
| A 5BB | AMBUR | 12:10:00 | GUDIYATHAM | 13:30:00 | ORD | TNSTC-VPM |
| A 5BB | AMBUR | 15:10:00 | GUDIYATHAM | 16:20:00 | ORD | TNSTC-VPM |
| A 5BB | AMBUR | 18:10:00 | GUDIYATHAM | 19:30:00 | ORD | TNSTC-VPM |
| G 1AA | AMBUR | 6:10:00 | GUDIYATHAM | 7:00:00 | ORD | TNSTC-VPM |
| G 1AA | AMBUR | 20:30:00 | GUDIYATHAM | 21:30:00 | ORD | TNSTC-VPM |
| G 5 A | AMBUR | 5:45:00 | GUDIYATHAM | 6:40:00 | ORD | TNSTC-VPM |
| G 5 A | AMBUR | 9:05:00 | GUDIYATHAM | 10:05:00 | ORD | TNSTC-VPM |
| G 5 A | AMBUR | 11:45:00 | GUDIYATHAM | 12:45:00 | ORD | TNSTC-VPM |
| G 5 A | AMBUR | 14:35:00 | GUDIYATHAM | 15:35:00 | ORD | TNSTC-VPM |
| G 5 A | AMBUR | 17:25:00 | GUDIYATHAM | 18:30:00 | ORD | TNSTC-VPM |
| G 5 A | AMBUR | 20:30:00 | GUDIYATHAM | 21:30:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 6:00:00 | GUDIYATHAM | 7:05:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 8:20:00 | GUDIYATHAM | 9:20:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 11:10:00 | GUDIYATHAM | 12:10:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 13:45:00 | GUDIYATHAM | 14:45:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 16:10:00 | GUDIYATHAM | 17:10:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 18:50:00 | GUDIYATHAM | 19:50:00 | ORD | TNSTC-VPM |
| G 5AA | AMBUR | 21:30:00 | GUDIYATHAM | 22:30:00 | ORD | TNSTC-VPM |
| G10 B | AMBUR | 20:40:00 | GUDIYATHAM | 22:05:00 | ORD | TNSTC-VPM |
| G15 A | AMBUR | 5:30:00 | GUDIYATHAM | 6:30:00 | ORD | TNSTC-VPM |
| G15 A | AMBUR | 8:40:00 | GUDIYATHAM | 9:40:00 | ORD | TNSTC-VPM |
| G15 A | AMBUR | 11:25:00 | GUDIYATHAM | 12:25:00 | ORD | TNSTC-VPM |
| G15 A | AMBUR | 14:00:00 | GUDIYATHAM | 15:00:00 | ORD | TNSTC-VPM |
| G15 A | AMBUR | 17:00:00 | GUDIYATHAM | 18:00:00 | ORD | TNSTC-VPM |
| G15 A | AMBUR | 19:50:00 | GUDIYATHAM | 20:50:00 | ORD | TNSTC-VPM |
| G15AA | AMBUR | 9:30:00 | GUDIYATHAM | 10:30:00 | ORD | TNSTC-VPM |
| G15AA | AMBUR | 12:55:00 | GUDIYATHAM | 13:55:00 | ORD | TNSTC-VPM |
| G15AA | AMBUR | 15:30:00 | GUDIYATHAM | 16:30:00 | ORD | TNSTC-VPM |
| G15AA | AMBUR | 19:30:00 | GUDIYATHAM | 20:30:00 | ORD | TNSTC-VPM |
| G15AA | AMBUR | 22:00:00 | GUDIYATHAM | 23:00:00 | ORD | TNSTC-VPM |
| G22 A | AMBUR | 8:00:00 | GUDIYATHAM | 9:00:00 | ORD | TNSTC-VPM |
| G22 A | AMBUR | 16:00:00 | GUDIYATHAM | 17:00:00 | ORD | TNSTC-VPM |
| G24 A | AMBUR | 13:15:00 | GUDIYATHAM | 14:15:00 | ORD | TNSTC-VPM |