Nonstop route
Phoenix to Houston nonstop
Yes — Southwest flies PHX to HOU nonstop year-round — about 5× daily.
PHXPhoenix
✈
HOUHouston
5× daily36.9 flights a week
Year-round36.9/wk Jun vs 38.2/wk Jan
$100–$225typical one-way · median $150
1,020miles nonstop
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Fares are what people actually paid: half of the 3,051 tickets in the US DOT fare survey for this route sold between $100 and $225 one way, median $150. That survey runs a couple of quarters behind, so treat it as the shape of the route's pricing rather than today's quote.
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