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Cheap flights from Washington to Casper from $243

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Casper departing on 3/6. 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 Washington to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:02 pm - 10:09 pm
GEG
-
CPR
5h 07m
1 stop
United Airlines Logo
3:15 pm - 9:18 pm
CPR
-
GEG
7h 03m
1 stop
$258United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
5:05 am - 10:51 am
PDX
-
CPR
4h 46m
1 stop
United Airlines Logo
5:25 am - 9:42 am
CPR
-
PDX
5h 17m
1 stop
$263United Airlines
Sun, Feb 22 - Tue, Mar 3
United Airlines Logo
3:16 pm - 10:09 pm
SEA
-
CPR
5h 53m
1 stop
United Airlines Logo
11:26 am - 6:03 pm
CPR
-
SEA
7h 37m
1 stop
$268United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
4:00 pm - 10:09 pm
PDX
-
CPR
5h 09m
1 stop
United Airlines Logo
11:26 am - 5:51 pm
CPR
-
PDX
7h 25m
1 stop
$268United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:05 am - 10:51 am
PDX
-
CPR
4h 46m
1 stop
United Airlines Logo
7:10 am - 2:48 pm
CPR
-
PDX
8h 38m
2 stops
$269United Airlines
Sun, Feb 22 - Tue, Mar 3
United Airlines Logo
12:15 pm - 10:09 pm
SEA
-
CPR
8h 54m
2 stops
United Airlines Logo
1:20 pm - 6:03 pm
CPR
-
SEA
5h 43m
1 stop
$274United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
4:00 pm - 10:09 pm
PDX
-
CPR
5h 09m
1 stop
United Airlines Logo
5:25 am - 2:48 pm
CPR
-
PDX
10h 23m
2 stops
$274United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:05 am - 12:40 pm
PDX
-
CPR
6h 35m
1 stop
United Airlines Logo
5:25 am - 9:42 am
CPR
-
PDX
5h 17m
1 stop
$282United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
5:00 am - 12:40 pm
GEG
-
CPR
6h 40m
1 stop
United Airlines Logo
3:15 pm - 9:17 pm
CPR
-
GEG
7h 02m
1 stop
$327United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
5:00 am - 10:51 am
SEA
-
CPR
4h 51m
1 stop
United Airlines Logo
5:55 pm - 10:56 pm
CPR
-
SEA
6h 01m
1 stop
$328United Airlines
Thu, Mar 26 - Sun, Mar 29

United Airlines flights from State of Washington to Casper

Our best United Airlines deals on State of Washington to Casper flight tickets
United Airlines
Mar 4
GEG4:02 pmSpokane
5h 07m
1 stop
CPR10:09 pmCasper Natrona County
Mar 11
CPR3:15 pmCasper Natrona County
7h 03m
1 stop
GEG9:18 pmSpokane
$258
United Airlines
Feb 22
PDX5:05 amPortland
4h 46m
1 stop
CPR10:51 amCasper Natrona County
Mar 3
CPR5:25 amCasper Natrona County
5h 17m
1 stop
PDX9:42 amPortland
$263
United Airlines
Feb 20
SEA3:16 pmSeattle/Tacoma Intl
5h 53m
1 stop
CPR10:09 pmCasper Natrona County
Feb 24
CPR11:26 amCasper Natrona County
7h 37m
1 stop
SEA6:03 pmSeattle/Tacoma Intl
$268

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 8, 2026.
Use the filters below to find and compare flights from Washington to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Wed 3/4

4:02 pm-10:09 pm

1 stop5h 07m

Casper Natrona County

Wed 3/11

3:15 pm-9:18 pm

1 stop7h 03m

$258

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sun 2/22

5:05 am-10:51 am

1 stop4h 46m

Casper Natrona County

Tue 3/3

5:25 am-9:42 am

1 stop5h 17m

$263

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Fri 2/20

3:16 pm-10:09 pm

1 stop5h 53m

Casper Natrona County

Tue 2/24

11:26 am-6:03 pm

1 stop7h 37m

$268

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

4:00 pm-10:09 pm

1 stop5h 09m

Casper Natrona County

Tue 2/24

11:26 am-5:51 pm

1 stop7h 25m

$268

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sun 2/22

5:05 am-10:51 am

1 stop4h 46m

Casper Natrona County

Tue 3/3

7:10 am-2:48 pm

2 stops8h 38m

$269

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Fri 2/20

12:15 pm-10:09 pm

2 stops8h 54m

Casper Natrona County

Tue 2/24

1:20 pm-6:03 pm

1 stop5h 43m

$274

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

4:00 pm-10:09 pm

1 stop5h 09m

Casper Natrona County

Tue 2/24

5:25 am-2:48 pm

2 stops10h 23m

$274

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

5:05 am-12:40 pm

1 stop6h 35m

Casper Natrona County

Fri 2/27

5:25 am-9:42 am

1 stop5h 17m

$282

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Fri 2/20

5:00 am-12:40 pm

1 stop6h 40m

Casper Natrona County

Fri 2/27

3:15 pm-9:17 pm

1 stop7h 02m

$327

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Thu 3/26

5:00 am-10:51 am

1 stop4h 51m

Casper Natrona County

Sun 3/29

5:55 pm-10:56 pm

1 stop6h 01m

$328

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Casper from

How to get the cheapest flight ticket from State of Washington to Casper

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Casper?

In general, September is the cheapest month to fly from State of Washington to Casper. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $324. If you aren’t able to travel during the month of September, then book flights to Casper from State of Washington during March instead. Flights to Casper in March, while not as cheap as those in September, still average around $363.

Cheap State of Washington to Casper flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Casper

Fastest flight time

4h 18m

Direct flights

None
The fastest flight from State of Washington to Casper takes 4h 18m
There are no direct flights from State of Washington to Casper. There are no popular flight routes from State of Washington to Casper.
Search flight deals

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

    Prices for flights from Washington to Casper Natrona County Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Washington to Casper Natrona County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Casper Natrona County Airport.

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

    The necessary travel and health documents for your Casper Natrona County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Casper

Compare and see reviews for airlines that fly from State of Washington to Casper with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $238Free CancellationRating
7.4
9,257 reviews
Search United Airlines flights

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 Washington to Casper?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Casper from Washington.

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

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

How can momondo help me find flights from Washington to Casper?

Once all potential Washington to Casper flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Casper from Washington 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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