This may be the wrong forum, and I apologize in advance if my search criteria was flawed and didn't return any useful results.

Question is this - I'm looking for 4 seats on any airline from ORD-STT in March 2011. Several carriers have routes, but none are really as cheap as I would like right now. I prefer AA as I'm PLT, but whatever works. Anyway - as I consistently check kayak.com and all the others, I figured it would be nice to be able to monitor the routes and flights to ensure that flights don't get sold out before I pull the trigger on buying. Obviously I'm counting on additional inventory being opened and fares dropping before that happens.

Am I just an idiot or what? Surely someone has thought of this or one of the travel sites would do this as a service and I'm just overlooking it. Perhaps it's more complicated than I think?

Any help would be appreciated, greatly of course!

Thanks!