Nonstop route
Chicago to St. Louis nonstop
Yes — United and American fly ORD to STL nonstop year-round — about 10× daily.
ORDChicago
✈
STLSt. Louis
10× daily68.8 flights a week
Year-round68.8/wk Jun vs 34.3/wk Jan
$150–$325typical one-way · median $225
258miles nonstop
Affiliate disclosure
Ready to compare fares?
Fares are what people actually paid: half of the 1,897 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.
Nonstop Scout may earn revenue from outbound flight-search links.