My 5 cents; arrive at least 2 hours early. Even very early in the morning it's not easy to find a parking spot. The lines for the TSA can be quite long. And early flights usually leave earlier than scheduled time. It also helps to bring something to eat and drink before the flight as there's hardly anything open at the airport. Good luck and have a great flight.
Yes this is true about check in but it is best to be there two hours before your flight because you never know what could arise with your flight. Better to be prepared
Yes u should be fine.
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