| Summer 2027 SC/159 28 Mar 27 – 30 Oct 27 |
Activity |
Winter 2026 SC/158 25 Oct 26 – 27 Mar 27 |
|---|---|---|
| 14 Sep 2026 | SHL Deadline | 13 Apr 2026 |
| 01 Oct 2026 | Agreed Historics Deadline | 30 Apr 2026 |
| 08 Oct 2026 | Initial Submission Deadline | 07 May 2026 |
| 03 Nov 2026 | SC Event Platform calendar opened to Coordinators | 26 May 2026 |
| 05 Nov 2026 | SAL Deadline (no later than) | 28 May 2026 |
| 09 Nov 2026 | SC Event Platform calendar opened to Airlines | 01 Jun 2026 |
| 17-19 Nov 2026 | IATA Slot Conference | 09-11 Jun 2026 |
| 15 Dec 2026 | Series Return Deadline | 15 Jul 2026 |
| 31 Jan 2027 | Historics Baseline Date | 31 Aug 2026 |