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$233+ Cheap flights from Casper (CPR) to Washington

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — SEA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Casper to Washington

Keep the following information in mind while searching for Casper to Washington flight deals. Data was last updated August 14, 2025.

Round-trip from

$248
(United Airlines)

One-way from

$233
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$557
From Casper Natrona County to Washington
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One-way flight from Casper Natrona County to Washington
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Casper to Washington

Cheapest flights from Casper to Washington
Explore the most affordable flight options available from Casper to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 8/275:50 pmCPR - PDX
1 stop5h 52mUnited Airlines
Sun 8/315:00 amPDX - CPR
1 stop6h 42mUnited Airlines
Deal found 8/12$248
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 8/275:30 amCPR - SEA
1 stop5h 27mUnited Airlines
Sun 8/315:02 amSEA - CPR
1 stop6h 40mUnited Airlines
Deal found 8/12$248
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/145:30 amCPR - PDX
1 stop4h 58mUnited Airlines
Sat 9/204:07 pmPDX - CPR
1 stop5h 07mUnited Airlines
Deal found 8/14$308
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/25:30 amCPR - SEA
1 stop5h 27mUnited Airlines
Sat 9/65:02 amSEA - CPR
1 stop8h 34mUnited Airlines
Deal found 8/12$308
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 8/215:30 amCPR - PDX
1 stop4h 58mUnited Airlines
Sun 8/245:00 amPDX - CPR
1 stop4h 50mUnited Airlines
Deal found 8/14$332
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 8/235:30 amCPR - PDX
1 stop4h 58mUnited Airlines
Wed 8/275:00 amPDX - CPR
1 stop4h 50mUnited Airlines
Deal found 8/13$343
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 8/223:11 pmCPR - SEA
1 stop8h 48mUnited Airlines
Tue 8/265:02 amSEA - CPR
1 stop6h 40mUnited Airlines
Deal found 8/13$368
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 9/101:37 pmCPR - GEG
1 stop8h 26mUnited Airlines
Wed 9/171:38 pmGEG - CPR
1 stop7h 36mUnited Airlines
Deal found 8/13$389
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 8/285:30 amCPR - PDX
1 stop8h 33mUnited Airlines
Mon 9/18:35 amPDX - CPR
1 stop9h 34mUnited Airlines
Deal found 8/13$424
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 12/273:15 pmCPR - SEA
1 stop7h 02mUnited Airlines
Wed 12/315:02 amSEA - CPR
1 stop4h 51mUnited Airlines
Deal found 8/14$444
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 8/263:11 pmCPR - GEG
1 stop6h 52mUnited Airlines
Fri 8/291:38 pmGEG - CPR
1 stop19h 02mUnited Airlines
Deal found 8/14$577
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 8/293:11 pmCPR - GEG
1 stop6h 52mUnited Airlines
Tue 9/25:15 amGEG - CPR
1 stop8h 21mUnited Airlines
Deal found 8/13$591

Cheapflights Fare Finder

 
Customize your flight search to find flights from Casper to Washington 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 August 14, 2025.
Use the filters below to find and compare flights from Casper to Washington that are best for you.

Fly from

Casper

Fly to

Washington

Route

Depart

Return

Price

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Wed 8/27

5:50 pm-10:42 pm

1 stop5h 52m

Portland

Sun 8/31

5:00 am-12:42 pm

1 stop6h 42m

$248

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Wed 8/27

5:30 am-9:57 am

1 stop5h 27m

Seattle/Tacoma Intl

Sun 8/31

5:02 am-12:42 pm

1 stop6h 40m

$248

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Sun 9/14

5:30 am-9:28 am

1 stop4h 58m

Portland

Sat 9/20

4:07 pm-10:14 pm

1 stop5h 07m

$308

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Tue 9/2

5:30 am-9:57 am

1 stop5h 27m

Seattle/Tacoma Intl

Sat 9/6

5:02 am-2:36 pm

1 stop8h 34m

$308

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Thu 8/28

3:11 pm-12:45 am

2 stops10h 34m

Portland

Mon 9/1

8:35 am-7:09 pm

1 stop9h 34m

$349

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Wed 9/10

1:37 pm-9:03 pm

1 stop8h 26m

Spokane

Wed 9/17

1:38 pm-10:14 pm

1 stop7h 36m

$389

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Wed 12/24

6:01 pm-10:56 pm

1 stop5h 55m

Portland

Wed 12/31

9:10 am-8:12 pm

1 stop10h 02m

$427

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Sat 12/27

3:15 pm-9:17 pm

1 stop7h 02m

Seattle/Tacoma Intl

Wed 12/31

5:02 am-10:53 am

1 stop4h 51m

$444

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Tue 8/26

3:11 pm-9:03 pm

1 stop6h 52m

Spokane

Fri 8/29

1:38 pm-9:40 am

1 stop19h 02m

$577

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Fri 8/29

3:11 pm-9:03 pm

1 stop6h 52m

Spokane

Tue 9/2

5:15 am-2:36 pm

1 stop8h 21m

$591

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 results
1
2

Best time to book a flight from Casper to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Casper to State of Washington (average of $238). Flying from Casper to State of Washington in June is currently the most expensive (average of $389). 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.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown United Airlines from Casper to Washington. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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

Find useful and relevant information for your journey from Casper to Washington. 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 from for flights from Casper to Washington?

    Casper Natrona County (CPR), located 8.1 mi from the city center, is the airport you fly out of when you book flights from Casper to Washington.

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

    The most popular flight routes from Casper to State of Washington are Casper Natrona County - Seattle/Tacoma Intl, Casper Natrona County - Portland and Casper Natrona County - Spokane.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Casper to State of Washington (average of $238). Flying from Casper to State of Washington in June is currently the most expensive (average of $389). 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

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Top airline flying from Casper to Washington

Discover the top airline that operate flights from Casper to Washington. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$308Average$476FlexibilityNo cancel feeOn-time69%

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