Spring break and fuel...and it's not just WN. My PHX-PDX-PHX flight last week on AS cost something absurd like $750. At least they were Y-up fares. Going to Dallas and HOU is $360+ o/w now out of TUS.
Even TUS-PDX in July costs $200 o/w.
I wouldn't be surprised to see fares to come down
somewhat, but who knows if we'll see $120 o/w fares anymore on the 1,000-1,500 mile trips.
About the only comforting thing with these high airfares is earning more points, especially if you're a A list preferred and flying out of CA with the DEQM promo.