$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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — CPR
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Louisville to Casper
Cheapest
Best
Last-minute
Cheapest flights from Louisville to CasperExplore 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 October 26, 2026.
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 October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/258:00 am -
1 stop6h 42m
Mon 12/285:15 am -
1 stop7h 06m
Deal found 10/24![United Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/2510:17 am -
2 stops9h 04m
Thu 12/318:30 am -
2 stops8h 17m
Deal found 10/24![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/99:00 am -
1 stop7h 48m
Sat 12/121:21 pm -
1 stop7h 04m
Deal found 10/21![United Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Thu 12/243:20 pm -
1 stop7h 06m
Sun 12/271:19 pm -
1 stop7h 11m
Deal found 10/24![United Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/253:20 pm -
1 stop8h 39m
Sun 12/275:15 am -
2 stops11h 32m
Deal found 10/24![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 11/53:24 pm -
1 stop5h 29m
Tue 11/1011:24 am -
1 stop9h 00m
Deal found 10/22![United Airlines logo]()
$518
Best flights from Louisville to CasperDiscover carefully curated flight deals from Louisville to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Louisville to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/2510:17 am -
2 stops9h 04m
Thu 12/318:30 am -
2 stops8h 17m
Deal found 10/24![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/99:00 am -
1 stop7h 48m
Sat 12/121:21 pm -
1 stop7h 04m
Deal found 10/25![United Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Thu 12/243:20 pm -
1 stop7h 06m
Sun 12/271:19 pm -
1 stop7h 11m
Deal found 10/24![United Airlines logo]()
$475
Last-minute flights from Louisville to CasperDiscover last-minute flight deals from Louisville to Casper. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Casper. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 11/53:24 pm -
1 stop5h 29m
Tue 11/1011:24 am -
1 stop9h 00m
Deal found 10/22![United Airlines logo]()
$518
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 October 26, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $358 (United Airlines) |
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 7,457,451 searches. Data last updated October 26, 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
Cheapest round-trip
LouisvilleCasper
SDF Louisville Intl - CPR Casper Natrona County
SDFCPR
Louisville Intl
Fri 12/25
10:17 am-5:21 pm
2 stops9h 04m
Casper Natrona County
Thu 12/31
8:30 am-6:47 pm
2 stops8h 17m
$439
LouisvilleCasper
SDF Louisville Intl - CPR Casper Natrona County
SDFCPR
Louisville Intl
Wed 12/9
9:00 am-2:48 pm
1 stop7h 48m
Casper Natrona County
Sat 12/12
1:21 pm-10:25 pm
1 stop7h 04m
$468
Quickest round-trip
LouisvilleCasper
SDF Louisville Intl - CPR Casper Natrona County
SDFCPR
Louisville Intl
Thu 12/24
3:20 pm-8:26 pm
1 stop7h 06m
Casper Natrona County
Sun 12/27
1:19 pm-10:30 pm
1 stop7h 11m
$475
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Louisville-Casper flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Louisville-Casper flight deals on Cheapflights vs. Expedia <90% 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 Expedia the most. Expedia 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.
SDF-CPR
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.
Reviews of airlines servicing Casper
Get insights into the airlines that provide service to Casper. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Casper. Reviews last updated October 26, 2026.
Read reviews from past customers who have flown United Airlines from Louisville to Casper. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.1
Food
6.7
Comfort
7.3
Boarding
7.7
Overall
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Entertainment
7.1
Crew
8.1
Food
6.7
Comfort
7.3
Boarding
7.7
Overall
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near Casper?
Book flights to Casper if you plan to visit one of these locationsRawlins
Douglas
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Top airline flying from Louisville to Casper
Discover the top airline that operate flights from Louisville to Casper. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$495 | FlexibilityNo cancel fee | On-time69% |