CancelaZIHón de Vuelos de Mexicana

I wasn't aware Mexicana were still in business. Hope that's not a misprint: we're booked on Aeromexico ZIH - CDMX return in February.

It's not the same company.

Wikipedia Entry for Mexicana Airline

Yes, I'm aware of that. Your link opens to the "old", bankrupt Mexicana, with a link to the resurrected Mexicana. I'm guessing that discontinuing flights between ZIH and CDMX doesn't bode well.

Not the problem. The problem is Mexicana only OWNS 2 planes and were renting another 3 from TAR. With the end of the Xmas season vacation, they stopped renting the 50-seater planes to reassess the market while they are expecting delivery of new planes soon from Brazil.