What is the cheapest airline to fly from Louisville to Casper round-trip?

United Airlines, at $392, was found to be the cheapest airline from Louisville to Casper..

What is the cheapest month to book a flight from Louisville to Casper?

Currently, January is the cheapest month in which you can book a flight from Louisville to Casper (average of $348). Flying from Louisville to Casper in June is currently the most expensive (average of $504). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Louisville to Casper?

Travelers seeking maximum savings on their Louisville to Casper flight should consider departing on Thursday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Casper ranges from 0.5 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Casper when rainfall is around 0.5 in.

If weather is an important factor for your trip to Casper, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 23.0 F).

What is the cheapest day to fly round-trip from Louisville to Casper?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 27%.

What is the cheapest time of day to fly from SDF to CPR?

When flying from Louisville to Casper, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 8% versus a flight in the morning.

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.

$392+ Flights from Louisville to Casper

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Cheap flight deals from Louisville to Casper

Round-trip from	$392 (United Airlines)

From Louisville Intl to Casper Natrona County

Search Deals

Find 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 July 29, 2025.

Tue 8/263:30 pmSDF - CPR

1 stop8h 44mUnited Airlines

Tue 9/25:50 pmCPR - SDF

2 stops14h 12mUnited Airlines

Deal found 7/27

$392

Best flights from Louisville to Casper
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 July 29, 2025.

Tue 8/263:30 pmSDF - CPR

1 stop8h 44mUnited Airlines

Tue 9/25:50 pmCPR - SDF

2 stops14h 12mUnited Airlines

Deal found 7/27

$392

Last-minute flights from Louisville to Casper
Discover last-minute flight deals from Louisville to Casper. Data last updated July 29, 2025 and is based on user searches.

Tue 8/263:30 pmSDF - CPR

1 stop8h 44mUnited Airlines

Tue 9/25:50 pmCPR - SDF

2 stops14h 12mUnited Airlines

Deal found 7/27

$392

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleCasper

SDF - CPR

SDFCPR

Louisville Intl

Tue 8/26

3:30 pm-10:14 pm

1 stop8h 44m

Casper Natrona County

Tue 9/2

5:50 pm-10:02 am

2 stops14h 12m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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.

Reviews of airlines servicing Casper

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.

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,896 reviews

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What is the cheapest airline to fly from Louisville to Casper round-trip?
United Airlines, at $392, was found to be the cheapest airline from Louisville to Casper..
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.
What is the cheapest month to book a flight from Louisville to Casper?
Currently, January is the cheapest month in which you can book a flight from Louisville to Casper (average of $348). Flying from Louisville to Casper in June is currently the most expensive (average of $504). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$392+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Casper with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Louisville to Casper

Round-trip from

Find flight deals from Louisville to Casper

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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Casper that are best for you.

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.

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 July 29, 2025.

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.

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.

What is the cheapest airline to fly from Louisville to Casper round-trip?

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

How can I find direct flights from Louisville to Casper?

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

What is the cheapest month to book a flight from Louisville to Casper?

Traveling to a place near Casper?

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Alternative routes for Louisville to Casper

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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 July 29, 2025.