If you are someone who is going to the airport for the first time, you should consider the below checklist for sure:
1) Reach before time, at least 2 hrs prior boarding (factor in traffic too)
2) Fill in your tummy because airport meal rates might burn a hole in your pocket
3) If your are travelling domestically follow this = Checkin--> Boarding
4) If your are travelling internationally follow this = Checkin--> Immigration--> Boarding
5) Do not keep any liquid more than 50ml in your handbag, also avoid objects like scissors, lighters and blades (You can keep such things in your luggage bags)
6) Dress up in the most comfortable way, especially for the long flights. For females, I highly recommend to avoid high heels and switch to comfortable shoes or sneakers.
7) You can web check-in to get the seat of your choice (in selected flights only), else wait untill you reach the airport but that doesn't promise you the window seat or the seat of your choice.
8) Last but not the least, carry all the necessary credentials.

