Delta, Southwest, and American have round-trip flights from Phoenix (PHX) to Seattle, San Francisco, Houston, Chicago, Omaha, West Palm Beach (SEA, SFO, IAH/HOU, ORD, OMA, PBI) for $106-$191, NONSTOP. Flights March to May. Weekends available. Origin/Destination reversible.
West Palm Beach is the most expensive fare in this list $183-$191.
San Francisco is the least expensive: $106.
All other destinations are less than $163 round-trip.
A Carry-on bag and also a personal item is allowed for free on Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Click for more details and booking links Nonstop Flights: Phoenix to/from Seattle, San Francisco, Houston, Chicago, Omaha, West Palm Beach $106-$191 r/t [March-May] – Delta / Southwest / American