$337 Cheap Flights from Baltimore (BWI) to Casper (CPR)

View $337 flight on Thu, May 21, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from Baltimore to Casper (BWI-CPR)

Prices were available within the past 7 days and start at $337 for one-way flights and $278 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$278 Roundtrip, found 6 days ago
$278
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $278 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$284 Roundtrip, found 6 days ago
$284
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $284 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$290 Roundtrip, found 6 days ago
$290
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $290 found 6 days ago
United
Thu, Sep 18 - Mon, Sep 22
BWI
Baltimore
CPR
Casper
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select United flight, departing Thu, Sep 18 from Baltimore to Casper, returning Mon, Sep 22, priced at $294 found 5 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$295 Roundtrip, found 6 days ago
$295
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $295 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$303 Roundtrip, found 6 days ago
$303
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $303 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$315 Roundtrip, found 6 days ago
$315
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $315 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$320 Roundtrip, found 6 days ago
$320
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $320 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$326 Roundtrip, found 6 days ago
$326
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $326 found 6 days ago
United
Sat, Sep 6 - Sat, Sep 13
BWI
Baltimore
CPR
Casper
$331 Roundtrip, found 6 days ago
$331
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Baltimore to Casper, returning Sat, Sep 13, priced at $331 found 6 days ago

Alternative airports near Casper

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Natrona County Intl. CPR. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $393
CPR
Natrona County Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $393
Flights from Baltimore (BWI) to Casper (CPR)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Natrona County Intl.
Airlines serving
United
Roundtrip price
$278
Distance
1565 mi

Baltimore to Casper Flights

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

 

The best time to book a flight from Baltimore to Casper

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Casper in 2025. You can also book with separate airlines for your outbound and return journeys, from $337 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 Baltimore 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 Baltimore 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR) cost?
Grab a cheap one-way flight from $337 or cheap return flight from $278 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR)?
The cheapest month to fly from BWI to CPR is September, when there's less demand. Off-peak months are often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BWI to CPR flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR)?
There are no daily nonstop flights departing from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from BWI to CPR?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, including 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR) route, aim to travel before 3 PM. Flights after this time 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR) last-minute?
Last-minute fares from BWI to CPR are generally more expensive. To secure the lowest rates, start looking for flights ahead of time. That said, if you're flexible with your travel plans, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book a BWI to CPR flight and hotel package?
Compared with arranging flights and hotels separately, booking a BWI to CPR flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the hassle out of travel planning. Simply pick your flights and select from our wide range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Natrona County Intl. Airport (CPR)?
In most instances, you can cancel or reschedule your BWI to CPR flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, visit our Customer Service portal.

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*Available to One Key members.