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 $504). 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.

In terms of precipitation, rainfall in Casper ranges from 0.5 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Casper when rainfall is around 0.5 in.

If weather is an important factor for your trip to Casper, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Idaho to Casper?

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

What is the cheapest month to fly from Idaho to Casper?

The best pricing can be found in the month of September. Prices to Casper from Idaho average $307. You can even find prices in September for less than $307, as users have found deals to Casper from as low as $228. The month of March appears to be one of the more expensive times to travel to Casper from Idaho. Flying in the targeted month can save you up to 38%.

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.

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.

$268+ Flights from Idaho to Casper

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Idaho to Casper with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 Idaho to Casper

Round-trip from	$268 (United Airlines)
One-way from	$268 (United Airlines)
Popular in	March
Cheapest in	September
Average price	$378

From Idaho to Casper Natrona County

Search Deals

One-way flight from Idaho to Casper Natrona County

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

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 July 31, 2025.

Tue 8/264:00 pmIDA - CPR

1 stop4h 21mUnited Airlines

Sat 8/305:30 amCPR - IDA

1 stop4h 17mUnited Airlines

Deal found 7/30

$268

Tue 8/265:15 amGEG - CPR

1 stop8h 21mUnited Airlines

Sat 8/305:30 amCPR - GEG

1 stop8h 06mUnited Airlines

Deal found 7/30

$338

Best flights from Idaho to Casper
Discover carefully curated flight deals from Idaho to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Tue 8/264:00 pmIDA - CPR

1 stop4h 21mUnited Airlines

Sat 8/305:30 amCPR - IDA

1 stop4h 17mUnited Airlines

Deal found 7/30

$268

Tue 8/265:15 amGEG - CPR

1 stop8h 21mUnited Airlines

Sat 8/305:30 amCPR - GEG

1 stop8h 06mUnited Airlines

Deal found 7/30

$338

Last-minute flights from Idaho to Casper
Discover last-minute flight deals from Idaho to Casper. Data last updated July 31, 2025 and is based on user searches.

Tue 8/264:00 pmIDA - CPR

1 stop4h 21mUnited Airlines

Sat 8/305:30 amCPR - IDA

1 stop4h 17mUnited Airlines

Deal found 7/30

$268

Tue 8/265:15 amGEG - CPR

1 stop8h 21mUnited Airlines

Sat 8/305:30 amCPR - GEG

1 stop8h 06mUnited Airlines

Deal found 7/30

$338

One-way flights from Idaho to Casper
Search for one-way flight options from Idaho to Casper. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Fri 9/121:38 pmGEG - CPR

1 stop4h 31mUnited Airlines

Deal found 7/31

$268

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Tue 8/26

4:00 pm-8:21 pm

1 stop4h 21m

Casper Natrona County

Sat 8/30

5:30 am-9:47 am

1 stop4h 17m

$268

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 8/26

5:15 am-2:36 pm

1 stop8h 21m

Casper Natrona County

Sat 8/30

5:30 am-12:36 pm

1 stop8h 06m

$338

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Fri 9/12

1:38 pm-7:09 pm

1 stop4h 31m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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?

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.

Reviews of airlines servicing Casper

Get a feel of what it's like to fly with United Airlines from Idaho to Casper by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,900 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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.
What are the most popular routes from Idaho to Casper?
Most travelers choose Spokane - Casper Natrona County, Idaho Falls Fanning Field - Casper Natrona County or Pocatello - 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 $504). 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

Rawlins

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Idaho to Casper

Dallas/Fort Worth to Denver flights

O'Hare Intl to Denver flights

LaGuardia to Denver flights

Newark to Denver flights

John F Kennedy Intl to Denver flights

Atlanta to Denver flights

Los Angeles to Denver flights

Seattle to Denver flights

Hobby to Denver flights

Philadelphia to Denver flights

San Francisco to Denver flights

Baltimore to Denver flights

Austin to Denver flights

Minneapolis to Denver flights

George Bush Intcntl to Denver flights

Los Angeles to Salt Lake City flights

Boston to Denver flights

Reagan-National to Denver flights

Ontario to Denver flights

Detroit to Denver flights

Newark to Salt Lake City flights

Dulles Intl to Denver flights

Raleigh to Denver flights

Charlotte to Denver flights

Orlando to Denver flights

John F Kennedy Intl to Salt Lake City flights

Cincinnati to Denver flights

Sky Harbor Intl to Denver flights

Tampa to Denver flights

Fort Lauderdale to Denver flights

Hartford to Denver flights

Dallas/Fort Worth to Salt Lake City flights

Boston to Salt Lake City flights

Miami to Denver flights

Love Field to Denver flights

Midway to Denver flights

Cleveland to Denver flights

San Francisco to Salt Lake City flights

O'Hare Intl to Salt Lake City flights

Indianapolis to Denver flights

San Antonio to Denver flights

San Jose to Denver flights

Kansas City to Denver flights

Sky Harbor Intl to Salt Lake City flights

Minneapolis to Salt Lake City flights

San Diego to Denver flights

Las Vegas to Denver flights

Columbus to Denver flights

Santa Ana to Denver flights

Nashville to Denver flights

Top airline flying from Idaho to Casper

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$218	Average$331	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$268+ Cheap flights from Idaho to Casper (CPR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho to Casper with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 July 31, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Idaho to Casper

Cheapest flights from Idaho to CasperExplore 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 July 31, 2025.

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 July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho to Casper that are best for you.

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.

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 July 31, 2025.

Reviews of airlines servicing Casper

Get insights into the airlines that provide service to Casper. 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 Casper. Reviews last updated July 31, 2025.

Get a feel of what it's like to fly with United Airlines from Idaho to Casper by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the most popular routes from Idaho to Casper?

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

How can I find direct flights from Idaho to Casper?

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

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

Traveling to a place near Casper?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Casper

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Idaho to Casper

100% Free

Book with Flexibility

Travel Smart

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 July 31, 2025.