- Denver (DEN) Louisville (SDF)
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3–4 Non-stop flights per dayat least 2h 32minfrom $420 - Chicago (CHI) Louisville (SDF)
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1–13 Non-stop flights per dayat least 1h 10minfrom $204 - Chicago O'Hare (ORD) Louisville (SDF)
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1–13 Non-stop flights per dayat least 1h 10minfrom $204 - Atlanta (ATL) Louisville (SDF)
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up to 16 Non-stop flights per dayat least 1h 12minfrom $229 - Washington DC (DCA) Louisville (SDF)
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1–7 Non-stop flights per dayat least 1h 43minfrom $300 - Cleveland (CLE) Louisville (SDF)
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only flights with stopoverat least 4h 25minfrom $210 - Akron (CAK) Louisville (SDF)
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only flights with stopoverat least 4h 6minfrom $328