My girlfriend and I have just arrived in Cancun, we're not the biggest of fans, so we thought we'd spend our time in Cuba instead. However, Cubana airways has a minimum 72-hour checkin (when booking online), which means we'll have to kill 3 days in Cancun before we can fly.
Is it possible to venture out to the airport early morning and try to grab some available seats for flights that day? Will this be painfully expensive? We would also need to acquire a visa but I'm fairly sure that can be done at the airport (can this be confirmed, please?)
Any help greatly appreciated.