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Except when specifically permitted by an ATSU, a domestic flight entering controlled or advisory airspace must have an air traffic service flight plan submitted no later than…

  • A

    10 minutes before departure

  • B

    1 hour before departure

  • C

    15 minutes before departure

  • D

    30 minutes before departure

SA CIVIL AVIATION REGULATIONS 
PART 91: GENERAL AVIATION AND OPERATING FLIGHT RULES
91.03.4 Air traffic service flight plan and associated procedures

(6) Unless otherwise authorized by the responsible ATSU, an ATS flight plan for a flight to be conducted in controlled or advisory airspace, shall be filed:

(a) for domestic flights, at least 30 minutes before departure;

(b) for international flights, at least 60 minutes before departure; or

(c) if filed during flight while outside controlled or advisory airspace for a flight to be conducted in such airspace, it shall be filed with the responsible ATSU at least 10 minutes before the aircraft is estimated to reach the intended point of entry into the controlled or advisory airspace or the point of crossing the airway or advisory route.


Domestic Flights → 30 minutes before departure
International Flights → 60 minutes before departure
Filed during Flight → 10 minutes before reaching the point or airspace

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