The cheapest times to fly from CPR to SDF are

  • January 1st to March 11th
  • April 2nd to May 13th
  • October 22nd to March 11th (except the weeks of November 19th, November 26th, December 17th, and December 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from CPR to SDF is late January and early February. Prices can be as high as $1186 for Sunday flights during mid June, or as low as $357 for Tuesday flights around late January and early February.


When to Fly to Louisville

Flying from Casper, WY (CPR) to Louisville, KY (SDF) will usually cost between $439 to $1042 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $445. Due to high demand the most expensive time to fly is mid June, with an average price of $1019. Planning your trip to low-cost times can easily save you $574 on economy flights and even more on first-class flights. Generally, any price below $689 can be considered a good price for a round-trip CPR to SDF flight.

See below for a graph of average weekly prices for the CPR to SDF route. All prices are for round-trip tickets in USD.

CPR to SDF Flight Prices

Compared to other flights, the CPR to SDF flight is cheaper than the average and costs less than the average flight leaving from Casper. The average price per mile (for a direct flight) is $0.38, which is a bit above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $201 (25%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $587. Return trip prices are from the SDF to CPR flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from CPR to SDF can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 1 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from CPR to SDF while comparing.

Destination alternative #1: Cincinnati/Northern Kentucky International Airport (CVG) in Cincinnati, OH

  • 84 miles (135 km) away from SDF
  • Usually 24.09% less expensive than SDF
  • 1-layover flights available

See CPR to CVG flights

Destination alternative #2: James M Cox/Dayton International Airport (DAY) in Dayton, OH

  • 145 miles (233 km) away from SDF
  • Usually 16.47% less expensive than SDF
  • 1-layover flights available

See CPR to DAY flights

Destination alternative #3: Indianapolis International Airport (IND) in Indianapolis, IN

  • 111 miles (179 km) away from SDF
  • Usually 12.92% less expensive than SDF
  • 1-layover flights available

See CPR to IND flights


Flight Hacking CPR to SDF

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from CPR to SDF — but Champion Traveler does!

Hack #1: Dallas/Fort Worth, TX (CPR > DFW > SDF)

  • Price for both tickets: $651
  • Average savings: $39 (5.59%)

See CPR to DFW flights

Hack #2: Los Angeles, CA (CPR > LAX > SDF)

  • Price for both tickets: $667
  • Average savings: $22 (3.19%)

See CPR to LAX flights

Hack #3: Houston, TX (CPR > IAH > SDF)

  • Price for both tickets: $678
  • Average savings: $12 (1.67%)

See CPR to IAH flights


Flight Questions Answered

Still have questions about flying from CPR to SDF? We’ve got answers.

Which airlines fly this route?

You can find 2 major airlines flying this route most often: Delta, United, and potentially more during busy seasons.

How far away is it from Louisville International-Standiford Field Airport to Casper/Natrona County International Airport?

The distance between the two airports is roughly 1133 miles or 1823 kilometers.

How long does it take to fly from CPR to SDF?

The real-world flight time for a nonstop CPR to SDF flight is about 3 hour 1 minutes.

How many flights go between Casper, WY and Louisville, KY?

It depends on the day of the week and the date, but a typical day might have around 24 available flights from CPR to SDF.


Airport Location Info


Departing Airport

Origination codeCPR
Origination airport nameCasper/Natrona County International Airport
CityCasper, WY
Countrythe United States

Return Airport

Destination codeSDF
Destination airport nameLouisville International-Standiford Field Airport
CityLouisville, KY
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.