After receiving my 2nd SSSS of the year Wednesday, I wanted to see what others had experienced. First, I realize that this is/was done prior to my arrival at the airport. I (almost) always fly AA, and I always (try to) check-in online. Twice I have not been able to complete my check-in online and received an SSSS on each of those occasions.

FWIW - I am Platinum w/ AA.

I started a new job this March and I now use the company's travel agent as opposed to booking tickets online. It costs me 500 miles each way, but it saves the company much more money. The differnces now that may have resulted in my two SSSS designations and likely more in the future:

1. Occasionally using one way tickets. I flew MIA to JFK in March. I was flying out on AA and back on Delta. The flights combined for less than $500 w/ no advance and no Saturday stay, but it took two carriers - and two one way tickets. So, instead of no red flags, I get two. Thankfully I only got stopped once.

2. Flying out of MIA. Both times I have been stopped (SSSS), I was flying out of Miami.

3. Changing flights. The most recent SSSS was on a return portion of a DFW-MIA ticket. I changed the return twice (through my TA). Is it possible that the return, when changed by the TA, was treated like a one way ticket?

4. Using a TA. I have already brought this up, but I wanted to expound. Are the money-saving practices utilized by my TA increasing the likelihood that I get flagged? I could ask for more detail, but I *think* that my TA uses bulk tickets at least some of the time (and saves us quite a bit of $$). Other times I get the exact same fare as on AA.com, but we pay an extra $25 and don't get the extra 1000 miles.

Anyway, are any of these contributing to my SSSS boarding passes?

Thanks in advance to the contributions of others who can support or refute my various suppositions.

Sam