u/General-Canary4426

Hello all. I am planning to fly to Miami sometime soon for personal reasons. Never flown as an adult. And what id like to ask is more of a general question.

This will be the beginning of multiple flights for the foreseeable future and i want to start off correctly. How do I stack the most rewards for my purchases? What strategies are there for getting the most bang for the buck? Or any other advise when it comes to air travel inside or outside the US.