Nonstop route
Chicago to Louisville nonstop
Yes — Southwest flies MDW to SDF nonstop year-round — about 3× daily.
MDWChicago
✈
SDFLouisville
3× daily20.8 flights a week
Year-round20.8/wk Jun vs 13.3/wk Jan
$75–$250typical one-way · median $125
271miles nonstop
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Fares are what people actually paid: half of the 549 tickets in the US DOT fare survey for this route sold between $75 and $250 one way, median $125. 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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