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$358+ Cheap flights from Louisville to Casper (SDF - CPR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — CPR
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Cheap flight deals from Louisville to Casper

Cheapest flights from Louisville to Casper
Explore the most affordable flight options available from Louisville to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:37 pm
SDF
-
CPR
1 stop5h 20m
United Airlines
Sat 5/93:14 pm
CPR
-
SDF
1 stop5h 17m
United Airlines
Deal found 4/20$358
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/193:37 pm
SDF
-
CPR
1 stop8h 33m
United Airlines
Thu 5/283:15 pm
CPR
-
SDF
1 stop5h 44m
United Airlines
Deal found 4/21$418
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:15 am
SDF
-
CPR
2 stops16h 55m
United Airlines
Sat 5/238:45 am
CPR
-
SDF
2 stops13h 04m
United Airlines
Deal found 4/21$429
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/223:25 pm
SDF
-
CPR
1 stop5h 50m
United Airlines
Tue 5/261:23 pm
CPR
-
SDF
1 stop7h 36m
United Airlines
Deal found 4/21$449
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/223:25 pm
SDF
-
CPR
1 stop8h 34m
United Airlines
Mon 5/2511:21 am
CPR
-
SDF
1 stop9h 38m
United Airlines
Deal found 4/21$459
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/223:25 pm
SDF
-
CPR
1 stop8h 34m
United Airlines
Thu 5/286:13 pm
CPR
-
SDF
2 stops14h 10m
United Airlines
Deal found 4/21$464
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/203:37 pm
SDF
-
CPR
1 stop8h 33m
United Airlines
Fri 5/2911:21 am
CPR
-
SDF
1 stop9h 38m
United Airlines
Deal found 4/21$488
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/203:37 pm
SDF
-
CPR
1 stop8h 33m
United Airlines
Tue 5/265:15 am
CPR
-
SDF
2 stops11h 47m
United Airlines
Deal found 4/21$494
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:06 am
SDF
-
CPR
2 stops10h 51m
United Airlines
Wed 5/275:15 am
CPR
-
SDF
2 stops11h 48m
United Airlines
Deal found 4/21$499

Find flight deals from Louisville to Casper

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Casper (CPR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$358
(United Airlines)
Provider with most accurate pricing for Louisville Intl-Casper Natrona County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Casper Natrona County flights.
Search Deals
From Louisville Intl to Casper Natrona County
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Casper that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
Use the filters below to find and compare flights from Louisville to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Tue 5/5

3:37 pm-6:57 pm

1 stop5h 20m

Casper Natrona County

Sat 5/9

3:14 pm-10:31 pm

1 stop5h 17m

$358

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Sat 5/23

3:25 pm-8:26 pm

1 stop7h 01m

Casper Natrona County

Tue 5/26

5:15 am-7:02 pm

2 stops11h 47m

$424

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Sat 5/23

9:00 am-10:05 pm

2 stops15h 05m

Casper Natrona County

Fri 5/29

6:13 pm-10:23 am

2 stops14h 10m

$429

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Wed 5/20

3:37 pm-10:10 pm

1 stop8h 33m

Casper Natrona County

Tue 5/26

5:15 am-7:02 pm

2 stops11h 47m

$494

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Sun 5/24

7:10 am-12:42 pm

2 stops7h 32m

Casper Natrona County

Fri 5/29

6:13 pm-7:02 pm

2 stops22h 49m

$565

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Sun 5/24

6:00 am-2:40 pm

2 stops10h 40m

Casper Natrona County

Sun 5/24

6:13 pm-10:23 am

2 stops14h 10m

$717

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Sat 5/23

8:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Sat 5/23

3:15 pm-10:59 pm

1 stop5h 44m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Sorted by cheapest first

Compare providers for flights from Louisville to Casper

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Casper in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Casper flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Casper flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Casper flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Casper flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Casper. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Louisville to Casper?

    For as low as $358, United Airlines can have you in Casper from Louisville in 5h 20m. Airlines will cover a distance of 1132 mi.

  • Can I find deals for flights from Louisville to Casper that include hotel bookings?

    Yes. In addition to deals on Louisville to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Casper.

  • Can I find deals for business class flights from Louisville to Casper?

    Yes. Cheapflights offers flight deals from Louisville to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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