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$238+ Cheap flights from Idaho to Casper (CPR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CPR
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Idaho to Casper

Keep the following information in mind while searching for Idaho to Casper flight deals. Data was last updated September 16, 2025.

Round-trip from

$238
(United Airlines)

Popular in

March

Cheapest in

April

Average price

$278
From Idaho to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Idaho to Casper

Cheapest flights from Idaho to Casper
Explore the most affordable flight options available from Idaho to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:10 pmGEG - CPR
1 stop5h 05mUnited Airlines
Mon 12/153:17 pmCPR - GEG
1 stop6h 42mUnited Airlines
Deal found 9/15$238
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/301:38 pmGEG - CPR
1 stop4h 09mUnited Airlines
Sat 10/48:55 amCPR - GEG
1 stop4h 41mUnited Airlines
Deal found 9/15$248
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:00 amIDA - CPR
1 stop7h 41mUnited Airlines
Sun 10/55:30 amCPR - IDA
1 stop8h 03mUnited Airlines
Deal found 9/15$293
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/181:38 pmGEG - CPR
1 stop5h 43mUnited Airlines
Mon 9/221:37 pmCPR - GEG
1 stop8h 26mUnited Airlines
Deal found 9/14$434
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:05 amGEG - CPR
1 stop4h 42mUnited Airlines
Fri 10/33:12 pmCPR - GEG
2 stops21h 30mUnited Airlines
Deal found 9/14$497
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:00 amIDA - CPR
1 stop7h 41mUnited Airlines
Fri 10/38:55 amCPR - IDA
1 stop24h 53mUnited Airlines
Deal found 9/14$538

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Casper that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Idaho to Casper that are best for you.

Fly from

Idaho

Fly to

Casper

Route

Depart

Return

Price

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Thu 12/4

4:10 pm-10:15 pm

1 stop5h 05m

Casper Natrona County

Mon 12/15

3:17 pm-8:59 pm

1 stop6h 42m

$238

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 9/30

1:38 pm-6:47 pm

1 stop4h 09m

Casper Natrona County

Sat 10/4

8:55 am-12:36 pm

1 stop4h 41m

$248

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Wed 10/1

5:00 am-12:41 pm

1 stop7h 41m

Casper Natrona County

Sun 10/5

5:30 am-1:33 pm

1 stop8h 03m

$293

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Mon 9/29

5:05 am-10:47 am

1 stop4h 42m

Casper Natrona County

Fri 10/3

3:12 pm-11:42 am

2 stops21h 30m

$497

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Mon 9/29

5:00 am-12:41 pm

1 stop7h 41m

Casper Natrona County

Fri 10/3

8:55 am-9:48 am

1 stop24h 53m

$538

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 9/30

5:05 am-10:47 am

1 stop4h 42m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Idaho to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Casper

What is the cheapest time of day to fly from ID to CPR?

Find hourly flight availability from Idaho to Casper. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Casper as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Casper. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Casper from Idaho?

    Casper Natrona County (CPR) is the airport you will fly into if you book a flight from Idaho to Casper. It is only a 8.1 mi journey from Natrona County (CPR) to Casper’s city center.

  • How long is the flight from Idaho to Casper?

    A quick flight from Idaho to Casper can take about 5h 05m. United Airlines provides one of the quickest options available for as low as $238. The distance between Idaho and Casper is about 628 mi.

  • What are the most popular routes from Idaho to Casper?

    Most travelers choose Spokane - Casper Natrona County, Pocatello - Casper Natrona County or Idaho Falls Fanning Field - Casper Natrona County when deciding on the best route from Idaho to Casper.

  • Can I find deals for flights from Idaho to Casper that include hotel bookings?

    Yes. In addition to deals on Idaho to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Casper.

  • Can I find deals for business class flights from Idaho to Casper?

    Yes. Cheapflights offers flight deals from Idaho to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Casper?

    Currently, January is the cheapest month in which you can book a flight from Idaho to Casper (average of $348). Flying from Idaho to Casper in June is currently the most expensive (average of $500). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins

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Top airline flying from Idaho to Casper

Discover the top airline that operate flights from Idaho to Casper. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$313FlexibilityNo cancel feeOn-time69%

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