American Airlines, Delta, and United have round-trip flights from Phoenix (PHX) to Palm Springs, Los Angeles, Reno, Long Beach, or San Diego (PSP, LAX, RNO, LGB, SAN) for $98-$138, NONSTOP. Flights November to February. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available. Holiday blackouts.
A Carry-on bag and also a personal item is allowed for free on American and Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.