Admin| Route | Source | Source Time | Destination | Destination Time | Class | STU |
| 644A | THENI | 7:05:00 | DURAISAMYPURAM | 8:10:00 | ORD | MDU |
| 644A | THENI | 12:10:00 | DURAISAMYPURAM | 13:05:00 | ORD | MDU |
| 644A | THENI | 16:40:00 | DURAISAMYPURAM | 17:50:00 | ORD | MDU |
| 644A | THENI | 21:10:00 | DURAISAMYPURAM | 22:00:00 | ORD | MDU |
