| 1. Round | 20/08/2018 | Athletic Club | - | CD Leganés | 2:1 | ||||
| 2. Round | 27/08/2018 | Athletic Club | - | SD Huesca | 2:2 | ||||
| 4. Round | 15/09/2018 | Athletic Club | - | Real Madrid | 1:1 |  |
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| 5. Round | 23/09/2018 | Real Betis | - | Athletic Club | 2:2 | |
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| 6. Round | 26/09/2018 | Athletic Club | - | Villarreal CF | 0:3 | ||||
| 7. Round | 29/09/2018 | FC Barcelona | - | Athletic Club | 1:1 | ||||
| 8. Round | 05/10/2018 | Athletic Club | - | Real Sociedad | 1:3 |
Spain