| 2. Round | 27/07/2004 | FC Aarau | - | FC Thun | 0:1 |  |
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| 3. Round | 31/07/2004 | Neuchâtel Xamax FC | - | FC Aarau | 2:1 | ||||
| 4. Round | 07/08/2004 | FC Aarau | - | Servette FC | 4:0 |  |
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| 5. Round | 14/08/2004 | FC Zürich | - | FC Aarau | 1:3 | ||||
| 6. Round | 21/08/2004 | FC Aarau | - | BSC Young Boys | 1:3 | ||||
| 7. Round | 28/08/2004 | FC Schaffhausen | - | FC Aarau | 3:3 | ||||
| 8. Round | 11/09/2004 | FC Aarau | - | FC St. Gallen | 4:1 | ||||
| 9. Round | 22/09/2004 | Grasshopper Club Zürich | - | FC Aarau | 1:1 | ||||
| 10. Round | 25/09/2004 | FC Aarau | - | FC Basel 1893 | 1:0 | ||||
| 12. Round | 16/10/2004 | FC Aarau | - | Neuchâtel Xamax FC | 0:0 | ||||
| 14. Round | 07/11/2004 | FC Aarau | - | FC Zürich | 3:1 | ||||
| 15. Round | 14/11/2004 | BSC Young Boys | - | FC Aarau | 1:1 | |
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| 16. Round | 28/11/2004 | FC Aarau | - | FC Schaffhausen | 2:1 | ||||
| 17. Round | 05/12/2004 | FC St. Gallen | - | FC Aarau | 2:1 | ||||
| 18. Round | 12/12/2004 | FC Aarau | - | Grasshopper Club Zürich | 1:2 | ||||
| 19. Round | 20/02/2005 | FC Aarau | - | Neuchâtel Xamax FC | 1:2 | ||||
| 24. Round | 16/03/2005 | FC St. Gallen | - | FC Aarau | 0:0 | ||||
| 34. Round | 18/05/2005 | FC Aarau | - | FC Schaffhausen | 0:1 |
North Macedonia