The return trip is through Denver. I've had good luck flying Frontier through Denver--- no missed connections in several years of travel. Rather the opposite with United, unfortunately.
I'll be out in California for three more weeks before the end of the year, including the first two weeks of December. I'm trying to figure out if I'm better off booking a round-trip ticket to come home on the weekend, booking two Monday-Friday tickets, or if I just want to stay the weekend.