| SHL DISTRIBUTION DEADLINE | Deadline for the Distribution of historic slots for Winter 2019/2020 by coordinators | 2019/04/16 | 2019/04/20 | More info |
| AGREED HISTORIC DEADLINE | Agreed historic slot deadline for Winter 2019/2020 | 2019/05/09 | 2019/05/09 | More info |
| SLOT SUBMISSION DEADLINE | Deadline for Submission of initial slot requests for coordinated airports and schedule Information for facilitated airports | 2019/05/16 | 2019/05/16 | More info |
| SAL DISTRIBUTION DEADLINE | Deadline for the SAL distribution by coordinators and schedules facilitators for Winter 2019/2020 | 2019/06/06 | 2019/06/06 | More info |
| IATA SC 144 | IATA Schedule Conference for Winter 2019/2020 | 2019/06/18 | 2019/06/20 | More info |
| IATA SLOT HANDBACK DEADLINE | IATA Slot handback deadline for Winter 2019/2020 | 2019/08/15 | 2019/08/15 | More info |
| START OF USE IT OR LOSE IT CALCULATION | Reference date for the use it or lose it calculation for Winter 2019/2020 | 2019/08/31 | 2019/08/31 | More info |