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Cheap flights from Idaho to Casper from $328

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 to Casper departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Idaho to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:08 pm - 9:59 pm
GEG
-
CPR
4h 51m
1 stop
United Airlines Logo
3:15 pm - 8:30 pm
CPR
-
GEG
6h 15m
1 stop
$328United Airlines
Tue, Jun 9 - Sat, Jun 13
United Airlines Logo
5:00 am - 10:49 am
GEG
-
CPR
4h 49m
1 stop
United Airlines Logo
3:11 pm - 8:53 pm
CPR
-
GEG
6h 42m
1 stop
$338United Airlines
Tue, Sep 15 - Tue, Sep 29
United Airlines Logo
4:18 pm - 9:59 pm
GEG
-
CPR
4h 41m
1 stop
United Airlines Logo
9:26 am - 3:13 pm
CPR
-
GEG
6h 47m
1 stop
$378United Airlines
Fri, Aug 7 - Sun, Aug 9
United Airlines Logo
4:18 pm - 9:59 pm
GEG
-
CPR
4h 41m
1 stop
United Airlines Logo
9:26 am - 5:21 pm
CPR
-
GEG
8h 55m
1 stop
$428United Airlines
Thu, Jun 25 - Sun, Jun 28
United Airlines Logo
2:30 pm - 9:59 pm
IDA
-
CPR
7h 29m
1 stop
United Airlines Logo
5:15 am - 9:50 am
CPR
-
IDA
4h 35m
1 stop
$492United Airlines
Sat, Jun 27 - Mon, Jun 29
United Airlines Logo
2:30 pm - 8:51 am
IDA
-
CPR
18h 21m
1 stop
United Airlines Logo
9:26 am - 1:25 pm
CPR
-
IDA
3h 59m
1 stop
$527United Airlines
Wed, Jun 10 - Sun, Jun 14
United Airlines Logo
5:00 am - 10:49 am
GEG
-
CPR
4h 49m
1 stop
United Airlines Logo
1:26 pm - 10:30 am
CPR
-
GEG
22h 04m
2 stops
$532United Airlines
Tue, Sep 15 - Tue, Sep 29
United Airlines Logo
4:13 pm - 9:59 pm
GEG
-
CPR
4h 46m
1 stop
United Airlines Logo
3:15 pm - 9:05 pm
CPR
-
GEG
6h 50m
1 stop
$536United Airlines
Tue, Aug 4 - Thu, Aug 6
United Airlines Logo
5:00 am - 10:46 am
GEG
-
CPR
4h 46m
1 stop
United Airlines Logo
9:26 am - 3:12 pm
CPR
-
GEG
6h 46m
1 stop
$562United Airlines
Sun, Jun 21 - Wed, Jun 24
United Airlines Logo
5:00 am - 10:46 am
GEG
-
CPR
4h 46m
1 stop
United Airlines Logo
3:15 pm - 9:05 pm
CPR
-
GEG
6h 50m
1 stop
$616United Airlines
Tue, Aug 4 - Thu, Aug 6

United Airlines flights from Idaho to Casper

Our best United Airlines deals on Idaho to Casper flight tickets
United Airlines
Jun 9
GEG4:08 pmSpokane
4h 51m
1 stop
CPR9:59 pmCasper Natrona County
Jun 13
CPR3:15 pmCasper Natrona County
6h 15m
1 stop
GEG8:30 pmSpokane
$328
United Airlines
Sep 15
GEG5:00 amSpokane
4h 49m
1 stop
CPR10:49 amCasper Natrona County
Sep 29
CPR3:11 pmCasper Natrona County
6h 42m
1 stop
GEG8:53 pmSpokane
$338
United Airlines
Aug 7
GEG4:18 pmSpokane
4h 41m
1 stop
CPR9:59 pmCasper Natrona County
Aug 9
CPR9:26 amCasper Natrona County
6h 47m
1 stop
GEG3:13 pmSpokane
$378

momondo 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, momondo users made 832,500 searches. Data last updated May 27, 2026.
Use the filters below to find and compare flights from Idaho to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 6/9

4:08 pm-9:59 pm

1 stop4h 51m

Casper Natrona County

Sat 6/13

3:15 pm-8:30 pm

1 stop6h 15m

$328

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 9/15

5:00 am-10:49 am

1 stop4h 49m

Casper Natrona County

Tue 9/29

3:11 pm-8:53 pm

1 stop6h 42m

$338

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Fri 8/7

4:18 pm-9:59 pm

1 stop4h 41m

Casper Natrona County

Sun 8/9

9:26 am-3:13 pm

1 stop6h 47m

$378

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Thu 6/25

4:18 pm-9:59 pm

1 stop4h 41m

Casper Natrona County

Sun 6/28

9:26 am-5:21 pm

1 stop8h 55m

$428

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Sat 6/27

2:30 pm-9:59 pm

1 stop7h 29m

Casper Natrona County

Mon 6/29

5:15 am-9:50 am

1 stop4h 35m

$492

Idaho FallsCasper

IDA - CPR

IDACPR

Idaho Falls Fanning Field

Wed 6/10

2:30 pm-8:51 am

1 stop18h 21m

Casper Natrona County

Sun 6/14

9:26 am-1:25 pm

1 stop3h 59m

$527

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 9/15

5:00 am-10:49 am

1 stop4h 49m

Casper Natrona County

Tue 9/29

1:26 pm-10:30 am

2 stops22h 04m

$532

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 8/4

4:13 pm-9:59 pm

1 stop4h 46m

Casper Natrona County

Thu 8/6

3:15 pm-9:05 pm

1 stop6h 50m

$536

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Sun 6/21

5:00 am-10:46 am

1 stop4h 46m

Casper Natrona County

Wed 6/24

9:26 am-3:12 pm

1 stop6h 46m

$562

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 8/4

5:00 am-10:46 am

1 stop4h 46m

Casper Natrona County

Thu 8/6

3:15 pm-9:05 pm

1 stop6h 50m

$616

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Idaho to Casper flight deals and tips

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

Fastest flight time

4h 41m

Direct flights

None
The fastest flight from Idaho to Casper takes 4h 41m
There are no direct flights from Idaho to Casper. There are no popular flight routes from Idaho to Casper.
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Frequently asked questions about flying from Idaho to Casper

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

    Prices for flights from Idaho to Casper Natrona County Airport refresh daily.

  • How many operators does momondo search for flights from Idaho to Casper Natrona County Airport?

  • How old do you have to be to fly from Idaho 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 to Casper Natrona County Airport.

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

    The travel and health documents you'll need for your trip to Casper Natrona County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Casper Natrona County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Casper

Compare and see reviews for airlines that fly from Idaho to Casper with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,749 reviews
Search United Airlines flights

Frequently asked questions about flying from Idaho to Casper

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

    Confirm your travel details to search for the latest offers for flights from Idaho 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 to Casper with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • 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 to Casper?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to Casper for you.

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

All flight searches from Idaho to Casper on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho 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.

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

Yes momondo offers price alerts on flights to Casper from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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