| 1. Round | 05/08/2017 | Oldham Athletic | - | Oxford United | 0:2 | ||||
| 6. Round | 09/09/2017 | Oxford United | - | Gillingham FC | 3:0 | ||||
| 11. Round | 30/09/2017 | Peterborough United | - | Oxford United | 1:4 | ||||
| 15. Round | 21/10/2017 | Oxford United | - | Rotherham United | 3:3 |  |
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| 22. Round | 16/12/2017 | Rochdale AFC | - | Oxford United | 0:0 | ||||
| 24. Round | 26/12/2017 | Gillingham FC | - | Oxford United | 1:1 | |
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| 25. Round | 30/12/2017 | Bradford City | - | Oxford United | 3:2 |  |
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| 26. Round | 01/01/2018 | Oxford United | - | Milton Keynes Dons | 3:1 | ||||
| 27. Round | 06/01/2018 | Oxford United | - | Blackpool FC | 1:0 | ||||
| 28. Round | 13/01/2018 | Walsall FC | - | Oxford United | 2:1 | |
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| 29. Round | 20/01/2018 | Oxford United | - | Bury FC | 1:2 | ||||
| 30. Round | 17/04/2018 | Wigan Athletic | - | Oxford United | 1:0 | |
Ireland