$343 Cheap Flights from Wilmington (ILM) to Casper (CPR)

View $343 flight on Fri, Nov 7, 2025Opens in a new window

Popular airlines from Wilmington Intl. Airport (ILM) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from Wilmington to Casper (ILM-CPR)

Prices were available within the past 7 days and start at $343 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$289 Roundtrip, found 13 hours ago
$289
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $289 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$379 Roundtrip, found 13 hours ago
$379
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $379 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$459 Roundtrip, found 13 hours ago
$459
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $459 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$459 Roundtrip, found 13 hours ago
$459
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $459 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$539 Roundtrip, found 13 hours ago
$539
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $539 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$574 Roundtrip, found 13 hours ago
$574
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $574 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$689 Roundtrip, found 13 hours ago
$689
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $689 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$736 Roundtrip, found 13 hours ago
$736
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $736 found 13 hours ago
United
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$748 Roundtrip, found 13 hours ago
$748
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $748 found 13 hours ago
Delta
Wed, Nov 12 - Tue, Nov 18
ILM
Wilmington
CPR
Casper
$1,092 Roundtrip, found 13 hours ago
$1,092
Roundtrip
found 13 hours ago
Select Delta flight, departing Wed, Nov 12 from Wilmington to Casper, returning Tue, Nov 18, priced at $1,092 found 13 hours ago

Frequently asked questions

How much does a flight from Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR) cost?
Secure a cheap one-way flight from $343 or cheap return flight from $289 from Wilmington Intl. Airport (ILM) 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 Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR)?
The cheapest month to fly from ILM to CPR is November, when there's less demand. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR)?
To find the cheapest airline flying from ILM to CPR, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR)?
There aren't any daily direct flights from Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from ILM 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 number 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 Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR)?
Book a flight from Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR) that leaves 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 Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR) last-minute?
Waiting until just before your departure to book a flight from ILM to CPR often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book an ILM to CPR flight and hotel package?
Booking an ILM to CPR flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of hotels and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Wilmington Intl. Airport (ILM) to Natrona County Intl. Airport (CPR)?
In most instances, you can modify or cancel your ILM to CPR flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, go to our Customer Service portal.

Travel information

Origin airport
Wilmington Intl.
Destination airport
Natrona County Intl.
Airlines serving
United
Roundtrip price
$288
Distance
1643 mi

Book with confidence

Wilmington to Casper Flights

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

 

The best time to book a flight from Wilmington to Casper

Sunday is one of the best days to book for cheap flights from Wilmington 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 Wilmington 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 Wilmington to Casper in 2025. You can also book with separate airlines for your outbound and return journeys, from $343 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 Wilmington 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 Wilmington 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.

 

Wilmington to Casper Flights

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*Available to One Key members.