Nonstop route
Denver to Louisville nonstop
Yes — United and Southwest fly DEN to SDF nonstop year-round — about 3× daily.
DENDenver
✈
SDFLouisville
3× daily20.8 flights a week
Year-round20.8/wk Jun vs 20.1/wk Jan
$175–$350typical one-way · median $225
1,024miles nonstop
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Fares are what people actually paid: half of the 1,170 tickets in the US DOT fare survey for this route sold between $175 and $350 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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