Originally Posted by
FlyerWx
I have almost never had my middle name on my ticket or boarding pass, and I have always gotten through TSA and boarded all my flights. They usually don't pay that much attention. I wouldn't stress. You can call and get it added (IIRC) if it makes you feel better.
It's not always easy to have the name added/changed on the actual electronic ticket record (sometimes there can be a fee). However, it really shouldn't be an issue.
https://www.flyertalk.com/forum/31183948-post958.html