| SHL Deadline |
20 April 2020 |
14 September 2020 |
19 April 2021 |
| Agreed Historics Deadline |
07 May 2020 |
01 October 2020 |
06 May 2021 |
| Confirmation of final coordination parameters and details of available capacity Deadline |
07 May 2020 |
01 October 2020 |
06 May 2021 |
| Initial Submission Deadline |
14 May 2020 |
08 October 2020 |
13 May 2021 |
| SAL Deadline |
04 June 2020 |
05 November 2020 |
03 June 2021 |
| IATA Slot Conference |
Cancelled |
17-20 November 2020 |
15-18 June 2021 |
| Slot Return Deadline (SRD) |
15 August 2020 |
15 January 2021 |
15 August 2021 |
| Historics Baseline Date (HBD) |
31 August 2020 |
31 January 2021 |
31 August 2021 |
| Start of Season |
25 October 2020 |
28 March 2021 |
31 October 2021 |
