I'm looking for cheap last minute airfare between San Diego and Hartford?

Thursday Oct 7 I need to fly from Hartford to SD, and found flights for around $400, but I was hoping for some awesome deal for under $200. Is this possible? Please point me to a correct website, or tell me about awesome places to find last minute deals!!! Thank you!!! Also, Saturday Oct 9 I need to fly back from SD to Hartford and also looking for the same type of deal!! Thanks again for all your help!!! Does anyone actually know of a super secret cheap last minute flight website? Or airline to call directly or anything like that?