$357 Cheap flights from Idaho Falls to Casper (IDA to CPR)

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Popular airlines from Idaho Falls Regional Airport (IDA) to Casper, WY (CPR-Natrona County Intl.)

United
United

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Cheap Flights from Idaho Falls to Casper (IDA-CPR)

Prices were available within the past 7 days and start at $357 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Roundtrip

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$259

Roundtrip

just found

Sun, Nov 9 - Sun, Nov 16

IDA

Idaho Falls

CPR

Casper

$268

Roundtrip

found 20 hours ago

Wed, Oct 1 - Tue, Oct 14

IDA

Idaho Falls

CPR

Casper

$273

Roundtrip

found 20 hours ago

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$277

Roundtrip

just found

Mon, Sep 22 - Tue, Oct 7

IDA

Idaho Falls

CPR

Casper

$278

Roundtrip

found 20 hours ago

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$282

Roundtrip

just found

Tue, Sep 23 - Wed, Oct 1

IDA

Idaho Falls

CPR

Casper

$283

Roundtrip

found 3 days ago

Wed, Sep 17 - Mon, Oct 6

IDA

Idaho Falls

CPR

Casper

$288

Roundtrip

found 20 hours ago

Wed, Oct 1 - Thu, Oct 16

IDA

Idaho Falls

CPR

Casper

$293

Roundtrip

found 20 hours ago

Mon, Sep 22 - Thu, Oct 9

IDA

Idaho Falls

CPR

Casper

$298

Roundtrip

found 20 hours ago

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$301

Roundtrip

just found

Wed, Sep 17 - Sun, Oct 5

IDA

Idaho Falls

CPR

Casper

$308

Roundtrip

found 20 hours ago

Fri, Sep 26 - Fri, Oct 3

IDA

Idaho Falls

CPR

Casper

$310

Roundtrip

found 3 days ago

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$319

Roundtrip

just found

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$322

Roundtrip

just found

Mon, Nov 10 - Sun, Nov 16

IDA

Idaho Falls

CPR

Casper

$324

Roundtrip

found 20 hours ago

Sat, Sep 27 - Wed, Oct 1

IDA

Idaho Falls

CPR

Casper

$329

Roundtrip

found 3 days ago

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$337

Roundtrip

just found

Sat, Nov 1 - Sun, Nov 2

IDA

Idaho Falls

CPR

Casper

$340

Roundtrip

just found

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR) cost?

Secure a cheap one-way flight from $357 or cheap return flight from $259 from Idaho Falls Regional Airport (IDA) 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 Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR)?

November is the most affordable month to fly from IDA to CPR. Planning your trip for the off-season is often the key to scoring lower fares.

What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR)?

Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IDA to CPR flight.

How many flights per day from Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR)?

You'll have to hop on a flight with a layover when traveling from Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.

What day of the week has the most flights from IDA to CPR?

You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.

What is the best time to fly from Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR)?

To avoid possible delays on the Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR) route, fly before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR) last-minute?

Booking your ticket from IDA to CPR shortly before your getaway is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.

Is it cheaper to book an IDA to CPR flight and hotel package?

Compared with arranging hotels and flights separately, booking an IDA to CPR flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the stress out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then customize your trip with extras like activities and car rentals.

Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Natrona County Intl. Airport (CPR)?

In most cases, you can cancel or modify your IDA to CPR flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like more details, head to our Customer Service portal.

Travel information

Origin airport	Idaho Falls Regional
Destination airport	Natrona County Intl.
Airlines serving	United
Roundtrip price	$258
Distance	285 mi

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Idaho Falls to Casper Flights

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

The best time to book a flight from Idaho Falls to Casper

Sunday is one of the best days to book for cheap flights from Idaho Falls 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 Idaho Falls 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 Idaho Falls to Casper in 2025. You can also book with separate airlines for your outbound and return journeys, from $357 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 Idaho Falls 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 Idaho Falls 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.