Do not even THINK of carrying a concealed wapon into an airport. I will NOT send you cartons of menthol cigarettes while you are in the Federal pen.
Only certain LEOs can carry beyond the security checkpoint. They will be on duty.
You CAN transport a gun when flying- in your checked baggage. Unloaded. After "declaring" the gun to the airline, having it inspected, and filling out the declaration form.
Go to the TSA website, (tsa.gov) and do some reading. After reading there, if you still have questions, give me a yell.