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A flight plan for a flight operating in controlled or advisory airspace that is submitted while airborne must be filed with the appropriate air traffic service unit no later than…

  • A

    30 minutes before the entry into the controlled or advisory airspace

  • B

    1 hour before the entry into the controlled or advisory airspace

  • C

    10 minutes before the entry into the controlled or advisory airspace

  • D

    5 minutes before the entry into the controlled or advisory airspace

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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