| 1. Round | 05/08/2017 | Shrewsbury Town | - | Northampton Town | 1:0 | ||||
| 2. Round | 12/08/2017 | Northampton Town | - | Fleetwood Town | 0:1 | ||||
| 3. Round | 19/08/2017 | Charlton Athletic | - | Northampton Town | 4:1 | ||||
| 4. Round | 26/08/2017 | Northampton Town | - | Peterborough United | 1:4 |  |
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| 6. Round | 09/09/2017 | Northampton Town | - | Doncaster Rovers | 1:0 | ||||
| 7. Round | 12/09/2017 | Northampton Town | - | Portsmouth FC | 3:1 | ||||
| 8. Round | 16/09/2017 | Southend United | - | Northampton Town | 2:2 | ||||
| 5. Round | 19/09/2017 | Wigan Athletic | - | Northampton Town | 1:0 | ||||
| 9. Round | 23/09/2017 | Northampton Town | - | Bradford City | 0:1 | ||||
| 10. Round | 26/09/2017 | Milton Keynes Dons | - | Northampton Town | 0:0 | ||||
| 11. Round | 30/09/2017 | Rotherham United | - | Northampton Town | 1:0 | ||||
| 12. Round | 07/10/2017 | Northampton Town | - | Bristol Rovers | 0:6 |  |
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| 27. Round | 06/01/2018 | Northampton Town | - | Southend United | 3:1 | |
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| 28. Round | 13/01/2018 | Bradford City | - | Northampton Town | 1:2 | ||||
| 29. Round | 20/01/2018 | Northampton Town | - | Milton Keynes Dons | 2:1 |
England