| Phase | Round | Draw date | First leg | Second leg |
|---|---|---|---|---|
| Qualifying | Preliminary round | 17 July 2020 | 8 August 2020 (semi-final round) | 11 August 2020 (final round) |
| First qualifying round | 9 August 2020 | 18–19 August 2020 | ||
| Second qualifying round | 10 August 2020 | 25–26 August 2020 | ||
| Third qualifying round | 31 August 2020 | 15–16 September 2020 | ||
| Play-off | Play-off round | 1 September 2020 | 22–23 September 2020 | 29–30 September 2020 |
| Group stage | Matchday 1 | 1 October 2020 (Geneva) | 20–21 October 2020 | |
| Matchday 2 | 27–28 October 2020 | |||
| Matchday 3 | 3–4 November 2020 | |||
| Matchday 4 | 24–25 November 2020 | |||
| Matchday 5 | 1–2 December 2020 | |||
| Matchday 6 | 8–9 December 2020 | |||
| Knockout phase | Round of 16 | 14 December 2020 | 16–17 & 23–24 February 2021 | 9–10 & 16–17 March 2021 |
| Quarter-finals | 19 March 2021 | 6–7 April 2021 | 13–14 April 2021 | |
| Semi-finals | 27–28 April 2021 | 4–5 May 2021 | ||
| Final | 29 May 2021 at Atatürk Olympic Stadium, Istanbul | |||