| Summer 2026 SC/157 29 Mar 26 – 24 Oct 26 |
Activity |
Winter 2026 SC/158 25 Oct 26 – 27 Mar 27 |
|---|---|---|
| 15 Sep 2025 | SHL Deadline | 13 Apr 2026 |
| 02 Oct 2025 | Agreed Historics Deadline | 30 Apr 2026 |
| 09 Oct 2025 | Initial Submission Deadline | 07 May 2026 |
| 04 Nov 2025 | SC Event Platform calendar opened to Coordinators | 26 May 2026 |
| 06 Nov 2025 | SAL Deadline (no later than) | 28 May 2026 |
| 10 Nov 2025 | SC Event Platform calendar opened to Airlines | 01 Jun 2026 |
| 18-20 Nov 2025 | IATA Slot Conference | 09-11 Jun 2026 |
| 15 Dec 2025 | Series Return Deadline | 15 Jul 2026 |
| 31 Jan 2026 | Historics Baseline Date | 31 Aug 2026 |