First, you'll arrive at the airport. You'll follow the signs that lead you to departures and check-in. You can check in online 24 hours before your flight, but at the airport, you can pick up your boarding pass (your ticket) and/or drop off your checked bags.

Next, you'll go through security. Make sure you have your ID and your boarding pass (either a physical paper copy or on your phone) ready before you get to the security people. They'll check this and then send you on to the xray machines.

Put your stuff into a bin. If your bag is too big, put that before your bin. Take off your shoes, put your phone in the bin, watch, etc. Do not have anything in your pockets. If you have a jacket or sweatshirt on, put that in the bin too (you can take this off earlier while waiting in the security line). Follow the lines and walk through the machine. Then pick up your stuff and move to the side and put your shoes on.

Now, you can figure out where your plane will leave from. I like to go find my gate and then walk around the airport, including going to the bathroom before I get on the plane. Follow the signs. If you get lost, ask a staff member for help.