Denver (DEN)Louisville (SDF)
- non-stop flights:
- 7–10 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $489number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
7–10 7–10 7–10 8–10 7–10 7–10 7–10 Chicago (CHI)Louisville (SDF)
- non-stop flights:
- 7–17 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $348number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
4–9 4–9 4–9 4–9 4–9 4–8 4–9 
4–6 3–8 3–8 4–8 4–8 3–8 4–7 Chicago O'Hare (ORD)Louisville (SDF)
- non-stop flights:
- 7–17 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $348number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
4–9 4–9 4–9 4–9 4–9 4–8 4–9 
4–6 3–8 3–8 4–8 4–8 3–8 4–7 Atlanta (ATL)Louisville (SDF)
- non-stop flights:
- 8–15 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $169number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
8–10 9–11 9–11 9–12 9–11 8–10 9–15 Washington DC (DCA)Louisville (SDF)
- non-stop flights:
- 3–6 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $261number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
3–4 3–4 3–4 3–6 3–4 3–4 3–5 Cleveland (CLE)Louisville (SDF)
- non-stop flights:
- only flights with stopover
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $409
Stops
- Direct flight
Departure airport
Airline
- United Airlines
- American Airlines
- Delta Air Lines
Outbound weekday
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday