Rule of thumb for passports

 As a rule of thumb, valid passports should be renewed about 8 months prior to expiration. Why? Because it takes on average 2 months for passport applications to be processed.

Can I fly to Cancun without a passport?

For the purpose of flying into as well as out of Mexico, a Passport is always required for Cancun as well. Technically, it must be a legitimate passport book and not just an ordinary passport card, as the card isn't valid to travel internationally. The passport book should have validity for the period of your stay. Jan 3, 2023