$258+ Cheap flights from Casper (CPR) to Idaho
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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — BOI
Jan 17 — Jan 241
1 adult, Economy
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Find cheap flights from Casper to Idaho with Cheapflights
1. Tell us where you want to go
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Casper to Idaho
Best flights from Casper to IdahoDiscover carefully curated flight deals from Casper to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
Discover carefully curated flight deals from Casper to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 1/173:17 pmCPR - GEG
1 stop7h 05mUnited Airlines
Mon 1/194:10 pmGEG - CPR
1 stop5h 04mUnited Airlines
Deal found 12/17![United Airlines logo]()
$258
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 1/313:17 pmCPR - GEG
1 stop7h 05mUnited Airlines
Tue 2/31:48 pmGEG - CPR
1 stop4h 18mUnited Airlines
Deal found 12/15![United Airlines logo]()
$328
Find flight deals from Casper to Idaho
Keep the following information in mind while searching for Casper to Idaho flight deals. Data was last updated December 18, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $258 (United Airlines) |
Popular in | October |
Cheapest in | December |
Average price | $278 |
Cheapflights Fare Finder
Customize your flight search to find flights from Casper to Idaho 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 December 18, 2025.
Use the filters below to find and compare flights from Casper to Idaho that are best for you.
Fly from
Casper
Fly to
Idaho
Route
Depart
Return
Price
CasperSpokane
CPR - GEG
CPRGEG
Casper Natrona County
Sat 1/17
3:17 pm-9:22 pm
1 stop7h 05m
Spokane
Mon 1/19
4:10 pm-10:14 pm
1 stop5h 04m
$258
CasperSpokane
CPR - GEG
CPRGEG
Casper Natrona County
Sat 1/31
3:17 pm-9:22 pm
1 stop7h 05m
Spokane
Tue 2/3
1:48 pm-7:06 pm
1 stop4h 18m
$328
Best time to book a flight from Casper to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Casper 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 Casper to Idaho
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated December 18, 2025.
Read through reviews of airlines operating flights from Casper to Idaho, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Food
6.6
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkayKevin,Dec 2025
BOS - EWR
Entertainment
7.1
Food
6.6
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkayKevin,Dec 2025
BOS - EWR
Related info for your journey
Find useful and relevant information for your journey from Casper to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Casper to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Casper to Idaho
Discover the top airline that operate flights from Casper to Idaho. 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 December 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$398 | FlexibilityNo cancel fee | On-time69% |