Denver (DEN)Louisville (SDF)
- non-stop flights:
- 2–10 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $522number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
2–10 2–10 2–10 2–10 2–10 2–9 2–10 Chicago (CHI)Louisville (SDF)
- non-stop flights:
- 10–22 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $262number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
6–14 6–14 6–14 6–13 6–13 6–13 6–13 
4–8 4–8 4–8 4–8 4–8 4–9 4–9 Chicago O'Hare (ORD)Louisville (SDF)
- non-stop flights:
- 10–22 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $262number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
6–14 6–14 6–14 6–13 6–13 6–13 6–13 
4–8 4–8 4–8 4–8 4–8 4–9 4–9 Atlanta (ATL)Louisville (SDF)
- non-stop flights:
- 8–12 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $297number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
8–10 9–11 9–11 9–11 9–11 8–11 9–11 
0 0 0 0 0 1 0 Washington DC (DCA)Louisville (SDF)
- non-stop flights:
- 1–6 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $338number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
1–6 1–6 1–6 1–6 1–6 1–6 1–6 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 $429
Stops
- Direct flight
Departure airport
Airline
- American Airlines
- United Airlines
- Frontier Airlines
- Westjet
- Delta Air Lines
Outbound weekday
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday
