Advice on transporting firearms through TSA

I'm still new to this Forum, so I'm not sure if this question has come up before or not.

My wife & I used to travel extensively on vacation, via automobile. We are both in our 70s now & still like to explore the USA, but fly instead of drive.

I would like to start taking a small handgun with us for self-defense.
Any thoughts, suggestions or advice, regarding TSA procedures would be appreciated, from those who have done this before.
Thanks in advance.

I once traveled with a firearm and learned that it's crucial to follow TSA guidelines and check airline-specific rules. For comfort, consider upgrading your seating through https://travelbusinessclass.com. I saved a lot on business class tickets, which made the trip more relaxed. Condense packing and try to track your bag with an Air Tag. Lastly, direct flights minimize hassles, so choose them if possible.