- Denver (DEN) Louisville (SDF)
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4 Non-stop flights per dayat least 2h 32minfrom $350 - Chicago (CHI) Louisville (SDF)
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up to 13 Non-stop flights per dayat least 1h 10minfrom $207 - Chicago O'Hare (ORD) Louisville (SDF)
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up to 13 Non-stop flights per dayat least 1h 10minfrom $207 - Atlanta (ATL) Louisville (SDF)
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up to 15 Non-stop flights per dayat least 1h 12minfrom $152 - Washington DC (DCA) Louisville (SDF)
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up to 5 Non-stop flights per dayat least 1h 43minfrom $222 - Cleveland (CLE) Louisville (SDF)
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only flights with stopoverat least 3h 40minfrom $311 - Houston-Hobby (HOU) Louisville (SDF)
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only flights with stopoverat least 4h 5minfrom $358 - Sacramento (SMF) Louisville (SDF)
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only flights with stopoverat least 6h 8minfrom $292 - Spokane (GEG) Louisville (SDF)
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only flights with stopoverat least 6h 17minfrom $443 - Akron (CAK) Louisville (SDF)
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only flights with stopoverat least 3h 41minfrom $255