Is an hour and 15mins long enough to get through customs and security so we can make our connecting flight? We don’t have to worry about checked bags, which is good, but I just really don’t want to miss our flight home.

Plenty of time, especially if you are on an early or late flight. And, you have already been screened on your first flight as you wrote connecting flight in your question.Happy travels!!

Yes that is plenty of time. I go through customs there frequently. You will also have to go through security again after clearing Customs and Immigration (EVERYONE does if they are connecting ) to get to your next flight. It is all very streamlined and well managed.

Depending on traffic for particular day

Usuali 2 horas b 4