<p>Rexximus- I suspect I’ve been at the airline game longer than you have. I was busted by American in the 90s for buying back to back tickets which reflected a Saturday night stay that I really didn’t do. I also did the hidden city stuff. I forget how I engineered it all, but they caught me when I missed an initial leg but gave me a pass since I was Platinum.<br>
Now A mainly fly Southwest and I do know they keep track of all the through passengers. This is to make sure no one bails and leaves checked luggage with the plane I was told. Wo knows?</p>