3. Round | 21/01/2021 | UD Ibiza | - | Athletic Bilbao | 1:2 | ||||
Round of 16 | 28/01/2021 | CD Alcoyano | - | Athletic Bilbao | 1:2 | ||||
Quarter-finals | 04/02/2021 | Real Betis | - | Athletic Bilbao | 1:4 pso | ||||
Semi-finals | 04/03/2021 | Levante UD | - | Athletic Bilbao | 1:2 aet |