i don't travel much, so i can't share any travel discount sites, but i do hope you can find a great deal amongst the sites everyone is able to suggest here.
Did you try Southwest? I've found them to be the cheapest most often (but depends where you're flying from). I think their site is Southwest Airlines or Southwest Airlines
inslet: that's usually what i fly. i actually need to look into getting a miles card through them. i've just heard that if you are going to one of jet blue's very few airports, it's a nice ride.
i have quite a few trips i need to take in the coming months (pasedena was just a whim ) and wondered if you really do get better fares through discount travel places. not finding that the case though...