Nonstop route
St Louis to Chicago nonstop
Yes — United and American fly STL to ORD nonstop year-round — about 10× daily.
STLSt Louis
✈
ORDChicago
10× daily67.9 flights a week
Year-round67.9/wk Jun vs 33.6/wk Jan
$150–$325typical one-way · median $225
258miles nonstop
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Fares are what people actually paid: half of the 1,880 tickets in the US DOT fare survey for this route sold between $150 and $325 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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