Going out, you may be OK if the weather doesn't screw up your plans, but coming back a 45 minute layover likely wouldn't be nearly enough. By the time you get off the plane from CZM your continuing flight would already be boarding and you wouldn't have been through Immigration, Customs, and TSA screening yet. I always schedule a two hour minimum layover at my point of entry into the US, and even then I have missed my connection a couple of times.This is interesting as we have booked American Airlines for our trip in November. Traveling from Wednesday to Wednesday from Atlanta to DFW to CZM. Delta has abandoned me again, as they are fickle regarding the seasons they fly directly from Atlanta to CZM. This is frustrating as I get a very spoiled and entitled feeling only to have it snatched out from under me.
Originally our AA departing flight was from Atlanta to Miami to CZM, but that one has already been cancelled and AA switched the flights from a layover in Miami to a layover in DFW. I don't really care except for now we only have a 45 minute layover in DFW.
Is 45 minutes enough time?