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Cheap flights from Idaho Falls to Casper from $238

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Casper departing on 3/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Idaho Falls to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:35 pm - 8:36 pm
IDA
-
CPR
6h 01m
1 stop
United Airlines Logo
5:25 am - 9:56 am
CPR
-
IDA
4h 31m
1 stop
$238United Airlines
Fri, Mar 13 - Tue, Mar 17
United Airlines Logo
5:20 pm - 10:07 pm
IDA
-
CPR
4h 47m
1 stop
United Airlines Logo
9:05 am - 1:24 pm
CPR
-
IDA
4h 19m
1 stop
$288United Airlines
Tue, Apr 21 - Sat, Apr 25
United Airlines Logo
2:35 pm - 6:57 pm
IDA
-
CPR
4h 22m
1 stop
United Airlines Logo
5:25 am - 9:56 am
CPR
-
IDA
4h 31m
1 stop
$379United Airlines
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
2:35 pm - 6:57 pm
IDA
-
CPR
4h 22m
1 stop
United Airlines Logo
5:25 am - 9:56 am
CPR
-
IDA
4h 31m
1 stop
$414United Airlines
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
10:50 am - 6:57 pm
IDA
-
CPR
8h 07m
1 stop
United Airlines Logo
5:25 am - 9:56 am
CPR
-
IDA
4h 31m
1 stop
$424United Airlines
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
2:35 pm - 6:57 pm
IDA
-
CPR
4h 22m
1 stop
United Airlines Logo
5:25 am - 9:56 am
CPR
-
IDA
4h 31m
1 stop
$459United Airlines
Wed, Mar 11 - Sun, Mar 15

United Airlines flights from Idaho Falls to Casper

Our best United Airlines deals on Idaho Falls to Casper flight tickets
United Airlines
Mar 13
IDA2:35 pmIdaho Falls Fanning Field
6h 01m
1 stop
CPR8:36 pmCasper Natrona County
Mar 17
CPR5:25 amCasper Natrona County
4h 31m
1 stop
IDA9:56 amIdaho Falls Fanning Field
$238
United Airlines
Apr 21
IDA5:20 pmIdaho Falls Fanning Field
4h 47m
1 stop
CPR10:07 pmCasper Natrona County
Apr 25
CPR9:05 amCasper Natrona County
4h 19m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
$288
United Airlines
Mar 12
IDA2:35 pmIdaho Falls Fanning Field
4h 22m
1 stop
CPR6:57 pmCasper Natrona County
Mar 15
CPR5:25 amCasper Natrona County
4h 31m
1 stop
IDA9:56 amIdaho Falls Fanning Field
$379

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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, momondo users made 832,500 searches. Data last updated February 28, 2026.
Use the filters below to find and compare flights from Idaho Falls to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Fri 3/13

2:35 pm-8:36 pm

1 stop6h 01m

Casper Natrona County

Tue 3/17

5:25 am-9:56 am

1 stop4h 31m

$238

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Tue 4/21

5:20 pm-10:07 pm

1 stop4h 47m

Casper Natrona County

Sat 4/25

9:05 am-1:24 pm

1 stop4h 19m

$288

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Thu 3/12

2:35 pm-6:57 pm

1 stop4h 22m

Casper Natrona County

Sun 3/15

5:25 am-9:56 am

1 stop4h 31m

$379

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Thu 3/12

2:35 pm-6:57 pm

1 stop4h 22m

Casper Natrona County

Sun 3/15

5:25 am-9:56 am

1 stop4h 31m

$414

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Thu 3/12

10:50 am-6:57 pm

1 stop8h 07m

Casper Natrona County

Sun 3/15

5:25 am-9:56 am

1 stop4h 31m

$424

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Wed 3/11

2:35 pm-6:57 pm

1 stop4h 22m

Casper Natrona County

Sun 3/15

5:25 am-9:56 am

1 stop4h 31m

$459

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Idaho Falls to Casper

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to Casper according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Idaho Falls to Casper (IDA to CPR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to Casper

Fastest flight time

4h 47m

Direct flights

None
The fastest flight from Idaho Falls to Casper takes 4h 47m
There are no direct flights from Idaho Falls to Casper. There are no popular flight routes from Idaho Falls to Casper.
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  • How far is Idaho Falls Fanning Field to Casper Natrona County by plane?

    The straight-line distance from Idaho Falls Fanning Field to Casper Natrona County is 290.6 mi. Typically, this will take 4h 47m by plane in normal conditions.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to Casper Natrona County Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to Casper Natrona County Airport are updated daily.

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to Casper Natrona County Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Casper Natrona County Airport.

  • What documentation or ID do you need to fly to Casper Natrona County Airport?

    The travel and health documents required for your trip to Casper Natrona County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Casper Natrona County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Idaho Falls to Casper?

    Confirm your travel details to search for the latest offers for flights from Idaho Falls to Casper. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Idaho Falls to Casper with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Casper?

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

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to Casper?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho Falls to Casper. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho Falls to Casper with flexible booking policies on momondo?

Flights from Idaho Falls to Casper with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho Falls to Casper?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Casper from Idaho Falls.

I’m not ready to book a flight from Idaho Falls to Casper right now. Can momondo alert me if prices change?

Price alerts on flights to Casper from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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