HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Casper

$233+ Cheap flights from Washington 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPR
oct. 31 — nov. 71
vie. 10/31
vie. 11/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington 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 Washington to Casper

Keep the following information in mind while searching for Washington to Casper flight deals. Data was last updated octubre 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238
(United Airlines)

One-way from

$233
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$393
Provider with most accurate pricing for Seattle/Tacoma Intl-Casper Natrona County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Casper Natrona County flights.
Search Deals
From Washington to Casper Natrona County
Search Deals
One-way flight from Washington to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Washington to Casper

Cheapest flights from Washington to Casper
Explore the most affordable flight options available from Washington to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 1, 2025.

This United Airlines deal was found by Cheapflights users on 9/30. 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.
vie. 11/145:00 amPDX - CPR
1 stop4h 45mUnited Airlines
lun. 11/176:05 pmCPR - PDX
1 stop5h 51mUnited Airlines
Deal found 9/30$238
This United Airlines deal was found by Cheapflights users on 9/30. 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.
mar. 10/143:35 pmSEA - CPR
1 stop5h 37mUnited Airlines
sáb. 10/1811:22 amCPR - SEA
1 stop5h 10mUnited Airlines
Deal found 9/30$248
This United Airlines deal was found by Cheapflights users on 9/30. 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.
mié. 10/1510:50 amPDX - CPR
1 stop6h 57mUnited Airlines
dom. 10/195:30 amCPR - PDX
1 stop4h 59mUnited Airlines
Deal found 9/30$248
This United Airlines deal was found by Cheapflights users on 9/30. 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.
mié. 10/155:05 amGEG - CPR
1 stop6h 36mUnited Airlines
dom. 10/198:55 amCPR - GEG
1 stop4h 41mUnited Airlines
Deal found 9/30$248
This United Airlines deal was found by Cheapflights users on 9/29. 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.
mié. 10/1510:50 amPDX - CPR
1 stop5h 03mUnited Airlines
lun. 10/206:00 pmCPR - PDX
1 stop5h 45mUnited Airlines
Deal found 9/29$259
This United Airlines deal was found by Cheapflights users on 9/29. 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.
lun. 10/271:47 pmGEG - CPR
1 stop5h 30mUnited Airlines
lun. 11/39:03 amCPR - GEG
1 stop4h 42mUnited Airlines
Deal found 9/29$264
This United Airlines deal was found by Cheapflights users on 9/29. 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.
mar. 10/285:05 amSEA - CPR
1 stop4h 40mUnited Airlines
dom. 11/26:05 pmCPR - SEA
1 stop6h 05mUnited Airlines
Deal found 9/29$297
This United Airlines deal was found by Cheapflights users on 9/29. 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.
mié. 11/53:48 pmSEA - CPR
1 stop5h 10mUnited Airlines
vie. 11/76:05 pmCPR - SEA
1 stop17h 30mUnited Airlines
Deal found 9/29$382
This United Airlines deal was found by Cheapflights users on 9/30. 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.
jue. 10/165:20 amPSC - CPR
1 stop6h 21mUnited Airlines
lun. 10/201:32 pmCPR - PSC
1 stop8h 07mUnited Airlines
Deal found 9/30$419
This United Airlines deal was found by Cheapflights users on 9/30. 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.
mar. 10/211:38 pmGEG - CPR
1 stop7h 34mUnited Airlines
lun. 10/271:25 pmCPR - GEG
1 stop8h 20mUnited Airlines
Deal found 9/30$422
This United Airlines deal was found by Cheapflights users on 9/29. 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.
mar. 11/255:10 amGEG - CPR
1 stop4h 35mUnited Airlines
mar. 12/23:17 pmCPR - GEG
1 stop6h 42mUnited Airlines
Deal found 9/29$462
This United Airlines deal was found by Cheapflights users on 9/29. 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.
lun. 10/201:38 pmGEG - CPR
1 stop7h 34mUnited Airlines
lun. 10/271:25 pmCPR - GEG
1 stop8h 20mUnited Airlines
Deal found 9/29$503

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 1, 2025.
Use the filters below to find and compare flights from Washington to Casper that are best for you.

Fly from

Washington

Fly to

Casper

Route

Depart

Return

Price

PortlandCasper

PDX - CPR

PDXCPR

Portland

vie. 11/14

5:00 am-10:45 am

1 stop4h 45m

Casper Natrona County

lun. 11/17

6:05 pm-10:56 pm

1 stop5h 51m

$238

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

mié. 10/15

8:30 am-4:53 pm

1 stop7h 23m

Casper Natrona County

dom. 10/19

3:12 pm-9:34 pm

1 stop7h 22m

$248

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

mar. 10/14

5:00 am-10:47 am

1 stop4h 47m

Casper Natrona County

sáb. 10/18

8:55 am-3:32 pm

1 stop7h 37m

$248

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

mié. 10/15

5:05 am-12:41 pm

1 stop6h 36m

Casper Natrona County

dom. 10/19

8:55 am-12:36 pm

1 stop4h 41m

$248

PortlandCasper

PDX - CPR

PDXCPR

Portland

mié. 10/15

10:50 am-4:53 pm

1 stop5h 03m

Casper Natrona County

lun. 10/20

6:00 pm-10:45 pm

1 stop5h 45m

$259

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

lun. 10/27

1:47 pm-8:17 pm

1 stop5h 30m

Casper Natrona County

lun. 11/3

9:03 am-12:45 pm

1 stop4h 42m

$264

PortlandCasper

PDX - CPR

PDXCPR

Portland

mié. 10/15

5:30 am-10:12 pm

3 stops15h 42m

Casper Natrona County

dom. 10/19

5:30 am-9:29 am

1 stop4h 59m

$329

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

mar. 10/28

9:25 am-9:58 pm

2 stops11h 33m

Casper Natrona County

dom. 11/2

6:05 pm-11:10 pm

1 stop6h 05m

$375

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

mié. 11/5

5:00 am-10:45 am

1 stop4h 45m

Casper Natrona County

vie. 11/7

6:05 pm-11:44 pm

2 stops30h 39m

$387

PascoCasper

PSC - CPR

PSCCPR

Pasco Tri Cities

jue. 10/16

5:20 am-12:41 pm

1 stop6h 21m

Casper Natrona County

lun. 10/20

1:32 pm-8:39 pm

1 stop8h 07m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

Showing 1-10 of 15 results
1
2

Best time to book a flight from Washington to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Washington 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 Washington to Casper

What is the cheapest month to book a flight from State of Washington to Casper?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Casper (average of $348). Flying from State of Washington to Casper in June is currently the most expensive (average of $498). 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.

What is the cheapest time of day to fly from WA to CPR?

Find hourly flight availability from Washington 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 octubre 1, 2025.

When flying from State of Washington to Casper, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 Washington?

    Most people fly into Casper Natrona County (CPR) if they book a flight to Casper from Washington. Natrona County is conveniently located just 8.1 mi from Casper’s city center.

  • How long is the flight from State of Washington to Casper?

    A quick flight from State of Washington to Casper can take about 4h 45m. United Airlines provides one of the quickest options available for as low as $238. The distance between State of Washington and Casper is about 817 mi.

  • What are the most popular routes from State of Washington to Casper?

    The most popular route from State of Washington to Casper is Seattle/Tacoma Intl - Casper Natrona County. You may also consider Portland - Casper Natrona County or Spokane - Casper Natrona County.

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

    Yes. In addition to deals on Washington to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Casper.

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Casper?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Casper (average of $348). Flying from State of Washington to Casper in June is currently the most expensive (average of $498). 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

Traveling to a place near Casper?

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

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 Washington to Casper

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Denver flights
John F Kennedy Intl to Denver flights
LaGuardia to Denver flights
Newark to Denver flights
O'Hare Intl to Denver flights
Hobby to Denver flights
Minneapolis to Denver flights
Seattle to Denver flights
George Bush Intcntl to Denver flights
San Francisco to Denver flights
Los Angeles to Denver flights
Atlanta to Denver flights
Baltimore to Denver flights
John F Kennedy Intl to Salt Lake City flights
Boston to Denver flights
Dallas/Fort Worth to Salt Lake City flights
Orlando to Denver flights
Seattle to Salt Lake City flights
Los Angeles to Salt Lake City flights
Austin to Denver flights
Philadelphia to Denver flights
Ontario to Denver flights
Newark to Salt Lake City flights
Miami to Denver flights
Tampa to Denver flights
Charlotte to Denver flights
Dulles Intl to Denver flights
Raleigh to Denver flights
Detroit to Denver flights
Fort Lauderdale to Denver flights
Sky Harbor Intl to Denver flights
Reagan-National to Denver flights
Midway to Denver flights
LaGuardia to Salt Lake City flights
Reagan-National to Salt Lake City flights
San Jose to Denver flights
Kansas City to Denver flights
Boston to Salt Lake City flights
Dulles Intl to Salt Lake City flights
Indianapolis to Denver flights
O'Hare Intl to Salt Lake City flights
Santa Ana to Denver flights
Baltimore to Salt Lake City flights
San Francisco to Salt Lake City flights
Sky Harbor Intl to Salt Lake City flights
San Antonio to Denver flights
Atlanta to Salt Lake City flights
Appleton to Denver flights
Milwaukee to Denver flights
Hartford to Denver flights

Top airline flying from Washington to Casper

Discover the top airline that operate flights from Washington to Casper. 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 octubre 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$467FlexibilityNo cancel feeOn-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.