$668 Cheap Flights from Marion (MWA) to Casper (CPR)

View $668 flight on Fri, Dec 19, 2025Opens in a new window

Popular airlines from Marion, IL (MWA-Williamson County Regional) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from Marion to Casper (MWA-CPR)

Prices were available within the past 7 days and start at $668 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR) cost?
Grab a cheap one-way flight from $668 or cheap return flight from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR)?
Planning your trip for is a good way to save, as it's the cheapest month for flights between MWA and CPR. You'll usually find the lowest fares during the off-season.
How many flights per day from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR)?
You'll have to hop on a flight with a layover when traveling from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from MWA to CPR?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR)?
Opt for a flight from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR) last-minute?
Booking your ticket from MWA to CPR shortly before your getaway is generally more expensive. However, if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a MWA to CPR flight and hotel package?
You'll generally save money by securing a MWA to CPR flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Williamson County Regional Airport (MWA) to Natrona County Intl. Airport (CPR)?
It's usually possible to cancel or reschedule your MWA to CPR flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Williamson County Regional
Destination airport
Natrona County Intl.
Distance
983 mi

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Marion to Casper Flights

The cheapest times to fly from Marion to Casper

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Marion to Casper are during the month of . You can find some of the cheapest flights from Marion to Casper with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Marion to Casper

Sunday is one of the best days to book for cheap flights from Marion to Casper: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Marion to Casper

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Marion to Casper in 2026. You can also book with separate airlines for your outbound and return journeys, from $668 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Marion to Casper flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Marion to Casper airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Marion to Casper Flights

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*Available to One Key members.