Nonstop route
Philadelphia to St. Louis nonstop
Yes — Southwest and American fly PHL to STL nonstop year-round — about 5× daily.
PHLPhiladelphia
✈
STLSt. Louis
5× daily34.1 flights a week
Year-round34.1/wk Jun vs 21.9/wk Jan
$175–$350typical one-way · median $225
814miles nonstop
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Fares are what people actually paid: half of the 1,858 tickets in the US DOT fare survey for this route sold between $175 and $350 one way, median $225. 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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