The flights I'm looking at do indeed stop in DEN, so I have a thread in the American West forum asking about DEN. My timeframe for these flights is mid-october, so I wouldn't think the weather would be all that bad. I know snow comes early in Denver, but it's not like it's mid-winter.

I haven't looked at Alaska Air, but I'll check it out. I'm specifically looking for flights with a stop, though, because I don't want to be stuck in my seat for a 6-hour n/s. I need to stretch!

EDITED TO ADD: Checked Alaska and it turns out that their seats in coach are the same width as WNs, with a tighter pitch, so I'd be just as uncomfortable on Alaska as I would be on Southwest, but for well over $100 more.