1)Keep a copy of both TSA and your airline’s rules for flying with a firearm with you;
2)Follow them;
3)Remove the bolt and put some sort of lock on the rifle - makes them feel better;
4)Lock every latch on your case;
5)Carry a 4457 Form for your rifle for coming back;
6)Go ahead and pre-submit your permit on the internet so all you have to do is pay the fee;
7)Carry ammo in separate, checked, bag;
8)Be nice to everyone involved in the process - even the jerks.
That’s a start.