All countries
| 1/16-finals | CA Osasuna W | Logrono W | details | 12.11.2026 19:00 | |||
| 8. Round | Cacereno W | CA Osasuna W | details | 15.11.2026 12:00 | |||
| 9. Round | Real Sociedad B W | CA Osasuna W | details | 22.11.2026 18:30 | |||
| 10. Round | CA Osasuna W | Atl. Madrid B W | details | 13.12.2026 17:00 | |||
| 11. Round | Real Union W | CA Osasuna W | details | 20.12.2026 12:00 | |||
| 12. Round | CA Osasuna W | Albacete W | details | 10.01.2027 17:00 | |||
| 13. Round | Levante W | CA Osasuna W | details | 17.01.2027 17:00 | |||
| 7. Round | CA Osasuna W | Tenerife B W | details | 20.01.2027 12:00 | |||
| 14. Round | CA Osasuna W | Athletic Bilbao B W | details | 24.01.2027 17:00 | |||
| 15. Round | CA Osasuna W | Extremadura W | details | 31.01.2027 17:00 | |||
| 16. Round | Tenerife B W | CA Osasuna W | details | 07.02.2027 17:00 | |||
| 17. Round | CA Osasuna W | Real Sociedad B W | details | 14.02.2027 17:00 | |||
| 18. Round | Barcelona B W | CA Osasuna W | details | 21.02.2027 17:00 | |||
| 19. Round | Villarreal W | CA Osasuna W | details | 14.03.2027 17:00 | |||
| 20. Round | CA Osasuna W | Cacereno W | details | 21.03.2027 17:00 | |||
| 21. Round | Albacete W | CA Osasuna W | details | 28.03.2027 16:00 | |||
| 22. Round | CA Osasuna W | Alhama W | details | 04.04.2027 16:00 | |||
| 23. Round | Atl. Madrid B W | CA Osasuna W | details | 07.04.2027 16:00 | |||
| 24. Round | CA Osasuna W | Real Union W | details | 11.04.2027 16:00 | |||
| 25. Round | Real Madrid B W | CA Osasuna W | details | 02.05.2027 16:00 | |||
| 26. Round | CA Osasuna W | Levante W | details | 09.05.2027 16:00 | |||