Nonstop route
Baltimore to St. Louis nonstop
Yes — Southwest flies BWI to STL nonstop year-round — about 4× daily.
BWIBaltimore
✈
STLSt. Louis
4× daily25.7 flights a week
Year-round25.7/wk Jun vs 15.6/wk Jan
$150–$300typical one-way · median $200
738miles nonstop
Affiliate disclosure
Ready to compare fares?
Fares are what people actually paid: half of the 1,720 tickets in the US DOT fare survey for this route sold between $150 and $300 one way, median $200. 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.