Thanks for all of your replies thus far. I know it's been a few weeks since I posted -- but I'm now researching it again. I think I'd like to stick with Denver as I know the area & it's easier for my sister (we're trying to coordinate flight schedules). I've found red-eyes out of SFO, SAN, LAX, and LAS (i.e. leaving Denver around 7 or 8 p.m. and then routing through those cities). Am I leaving out other options?