American Airlines, United, and Southwest have round-trip flights from Phoenix (PHX) to Salt Lake City, Los Angeles, or Denver (SLC, LAX, DEN) for $89-$158, NONSTOP. No Fridays. Cheapest departures on Tuesdays, Wednesdays, and Saturdays. Origin/Destination reversible. Holiday blackouts.
Los Angeles: Flights March-May, July-December.
Salt Lake City: Flights February-May, August-December.
Denver: Flights February to December.
Ordered from least expensive, ascending.















