The calculation of the kilometers flown will be made according to the orthodromic distance with the following form:

a) National flights: measured by the orthodromic distance between the destination airport and the original airport.

b) International flights: measured by the orthodromic distance between the incoming our outgoing point in the flight information region (FIR), to the national destination or original airport.

c) International fly-overs(No landed into Mexican Territory): measured by the orthodromic distance between the entry point to the FIR until departing same.