Nonstop route
St Louis to Philadelphia nonstop
Yes — Southwest and American fly STL to PHL nonstop year-round — about 5× daily.
STLSt Louis
✈
PHLPhiladelphia
5× daily34.1 flights a week
Year-round34.1/wk Jun vs 21.9/wk Jan
$175–$375typical one-way · median $250
814miles nonstop
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Fares are what people actually paid: half of the 1,876 tickets in the US DOT fare survey for this route sold between $175 and $375 one way, median $250. 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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