Easter Monday (Office closed)
2027-03-29

SHL Deadline W27
2027-04-19

King's day (Office closed)
2027-04-27

Liberation day (Office closed)
2027-05-05

Agreed Historics Deadline W27
2027-05-06

Ascension day (Office closed)
2027-05-06

Initial Submission Deadline W27
2027-05-13

Whit Monday (Office closed)
2027-05-17

SAL Deadline W27
2027-06-03

160th IATA Slot Conference - Vienna
2027-06-15 - 2027-06-17

Series Return Deadline W27
2027-07-15

Historics Baseline Date W27
2027-08-31

End of Season S27
2027-10-30

Start of Season W27
2027-10-31

161st IATA Slot Conference - the Americas
2027-11-16 - 2027-11-18
