$542 Cheap Flights from Billings (BIL) to Casper (CPR)

View $542 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from Billings Logan Intl. Airport (BIL) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from Billings to Casper (BIL-CPR)

Prices were available within the past 7 days and start at $542 for one-way flights and $467 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Feb 22 - Tue, Mar 3
BIL
Billings
CPR
Casper
$467 Roundtrip, found 3 days ago
$467
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 22 from Billings to Casper, returning Tue, Mar 3, priced at $467 found 3 days ago
United
Sat, Nov 8 - Sun, Nov 9
BIL
Billings
CPR
Casper
$472 Roundtrip, found 5 days ago
$472
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 8 from Billings to Casper, returning Sun, Nov 9, priced at $472 found 5 days ago
United
Thu, Nov 6 - Tue, Nov 11
BIL
Billings
CPR
Casper
$497 Roundtrip, found 5 days ago
$497
Roundtrip
found 5 days ago
Select United flight, departing Thu, Nov 6 from Billings to Casper, returning Tue, Nov 11, priced at $497 found 5 days ago
United
Thu, Nov 6 - Fri, Nov 7
BIL
Billings
CPR
Casper
$502 Roundtrip, found 5 days ago
$502
Roundtrip
found 5 days ago
Select United flight, departing Thu, Nov 6 from Billings to Casper, returning Fri, Nov 7, priced at $502 found 5 days ago
United
Sun, Feb 22 - Thu, Mar 5
BIL
Billings
CPR
Casper
$512 Roundtrip, found 3 days ago
$512
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 22 from Billings to Casper, returning Thu, Mar 5, priced at $512 found 3 days ago
United
Fri, Feb 27 - Tue, Mar 3
BIL
Billings
CPR
Casper
$537 Roundtrip, found 3 days ago
$537
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 27 from Billings to Casper, returning Tue, Mar 3, priced at $537 found 3 days ago
United
Sun, Feb 22 - Sat, Mar 7
BIL
Billings
CPR
Casper
$542 Roundtrip, found 3 days ago
$542
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 22 from Billings to Casper, returning Sat, Mar 7, priced at $542 found 3 days ago
United
Sat, Nov 8 - Sun, Nov 9
BIL
Billings
CPR
Casper
$552 Roundtrip, found 5 days ago
$552
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 8 from Billings to Casper, returning Sun, Nov 9, priced at $552 found 5 days ago
United
Sat, Nov 8 - Sun, Nov 9
BIL
Billings
CPR
Casper
$556 Roundtrip, found 5 days ago
$556
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 8 from Billings to Casper, returning Sun, Nov 9, priced at $556 found 5 days ago
United
Fri, Feb 27 - Thu, Mar 5
BIL
Billings
CPR
Casper
$582 Roundtrip, found 3 days ago
$582
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 27 from Billings to Casper, returning Thu, Mar 5, priced at $582 found 3 days ago
Flights from Billings (BIL) to Casper (CPR)
Origin airport
Logan Intl.
Destination airport
Natrona County Intl.
Roundtrip price
$466
Distance
225 mi

Billings to Casper Flights

The cheapest times to fly from Billings 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 Billings to Casper are during the month of February. You can find some of the cheapest flights from Billings to Casper with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Billings to Casper

Sunday is one of the best days to book for cheap flights from Billings 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 Billings 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 Billings to Casper in 2025. You can also book with separate airlines for your outbound and return journeys, from $542 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 Billings 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 Billings 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.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR) cost?
Snag a cheap one-way flight from $542 or cheap return flight from $467 from Logan Intl. Airport (BIL) 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 Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR)?
Planning your trip for February is a great way to save, as it's the cheapest month for flights between BIL and CPR. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BIL to CPR flight.
How many flights per day from Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR)?
There aren't any daily direct flights from Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BIL to CPR?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on various factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR)?
To avoid potential delays on the Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR) route, aim to fly before 3 PM. Departures after this hour are 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 Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR) last-minute?
Waiting until just before your trip to book a flight from BIL to CPR generally means paying more. While it's possible to find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for a better chance of scoring a bargain.
Is it cheaper to book a BIL to CPR flight and hotel package?
Compared with arranging hotels and flights separately, booking a BIL to CPR flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place will take the hassle out of travel planning. Simply pick your flights and choose from our wide range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BIL) to Natrona County Intl. Airport (CPR)?
You can usually cancel or reschedule your BIL to CPR flight. However, for bookings 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.

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*Available to One Key members.