When do you have to check in in for US domestic flights?

Question

I intend to fly between regional California airports in September. How much time should I allow for baggage check, security check, etc?

Answer 1

Get to the airport two hours before your flight. Really. It is MUCH better to have an hour to wait than to arrive later and have a problem.

Answer 2

It can vary between airports but 2 hours is a good rule of thumb.  You can usually shave that to 90 mins at smaller airports if you check-in via web and don't have luggage to check.

Answer 3

I always give myself two hours for all that stuff and take a book just in case. Good luck