I share with you some info contained in the printed Aeromexico timetable dating January 13th, 1958.
The most important routes were:
MEX-ACA: 35x in Convair 340 (52pax)
MEX-ACA: 20x in DC4 (subject to demand)
MEX-GDL: 3x in DC3; 7x Convair; 7x in DC4
GDL-TIJ: 7x in Convair
MZT-LMM-Navojoa-CEN-GYM-HMO: 7x in DC 3
MZT-CUL-LMM-CEN: 7x in DC3
GDL-MZT: 7x DC4
MZT-LAP: 4x in DC4
MEX-NYC: 7x in Britannia
MEX-TRC-CUU: 7x in DC4 and 7x in Convair
MTY-TRC-DGO: 6x in DC3
CUU-CJS: 7x in Convair
There were also flights HMO-Nogales, CEN-GYM-TIJ, ACA-LAP-TIJ-ACA, DGO-MZT, DGO-CUL, CUU-NvoCasas Grandes-Cananea-NOG-MXL-TIJ, CUU-NOG.
A first class round trip to NYC costed: U$276.2. They also offered a limo service to San Diego pax taking their flights in TIJ.
It is clear the most important route was MEX-ACA...