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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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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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 August 14, 2025.

Round-trip from

$238
(United Airlines)

One-way from

$233
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$462
From Washington to Casper Natrona County
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One-way flight from Washington to Casper Natrona County
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Highest demand for flights based on searches. 14% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($31 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 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 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 8/2711:11 amSEA - CPR
1 stop6h 58mUnited Airlines
Sun 8/313:11 pmCPR - SEA
1 stop7h 06mUnited Airlines
Deal found 8/12$248
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/274:00 pmGEG - CPR
1 stop5h 14mUnited Airlines
Sun 8/3111:25 amCPR - GEG
1 stop4h 48mUnited Airlines
Deal found 8/11$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 9/311:11 amSEA - CPR
1 stop6h 58mUnited Airlines
Sun 9/73:11 pmCPR - SEA
1 stop7h 19mUnited Airlines
Deal found 8/12$268
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.
Wed 8/2711:11 amSEA - CPR
1 stop6h 58mUnited Airlines
Sat 8/301:37 pmCPR - SEA
2 stops9h 38mUnited Airlines
Deal found 8/14$279
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 8/218:35 amPDX - CPR
1 stop7h 17mUnited Airlines
Mon 8/255:50 pmCPR - PDX
1 stop5h 52mUnited Airlines
Deal found 8/13$298
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 9/45:02 amSEA - CPR
1 stop6h 40mUnited Airlines
Sat 9/61:37 pmCPR - SEA
1 stop5h 17mUnited 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.
Fri 9/510:55 amPDX - CPR
1 stop7h 14mUnited Airlines
Fri 9/125:50 pmCPR - PDX
1 stop5h 52mUnited Airlines
Deal found 8/12$308
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.
Sun 8/315:00 amPDX - CPR
1 stop6h 42mUnited Airlines
Sun 9/75:30 amCPR - PDX
1 stop4h 59mUnited Airlines
Deal found 8/13$313
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.
Sat 8/306:25 amSEA - CPR
2 stops14h 49mUnited Airlines
Thu 9/41:37 pmCPR - SEA
1 stop5h 14mUnited Airlines
Deal found 8/12$319
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 8/285:02 amSEA - CPR
1 stop8h 34mUnited Airlines
Thu 9/45:50 pmCPR - SEA
1 stop6h 09mUnited Airlines
Deal found 8/13$338
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/265:15 amGEG - CPR
1 stop6h 27mUnited Airlines
Sat 8/303:11 pmCPR - GEG
1 stop6h 52mUnited Airlines
Deal found 8/11$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.
Thu 8/284:00 pmGEG - CPR
1 stop5h 14mUnited Airlines
Mon 9/17:05 amCPR - GEG
1 stop6h 31mUnited Airlines
Deal found 8/13$350

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 August 14, 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

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Wed 8/27

11:11 am-7:09 pm

1 stop6h 58m

Casper Natrona County

Sun 8/31

3:11 pm-9:17 pm

1 stop7h 06m

$248

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Wed 8/27

4:00 pm-10:14 pm

1 stop5h 14m

Casper Natrona County

Sun 8/31

11:25 am-3:13 pm

1 stop4h 48m

$248

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Wed 9/3

11:11 am-7:09 pm

1 stop6h 58m

Casper Natrona County

Sun 9/7

3:11 pm-9:30 pm

1 stop7h 19m

$268

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Wed 8/27

11:11 am-7:09 pm

1 stop6h 58m

Casper Natrona County

Sat 8/30

1:37 pm-10:15 pm

2 stops9h 38m

$279

PortlandCasper

PDX - CPR

PDXCPR

Portland

Thu 8/21

8:35 am-4:52 pm

1 stop7h 17m

Casper Natrona County

Mon 8/25

5:50 pm-10:42 pm

1 stop5h 52m

$298

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Thu 9/4

11:11 am-7:09 pm

1 stop6h 58m

Casper Natrona County

Sat 9/6

1:37 pm-5:54 pm

1 stop5h 17m

$308

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Tue 9/16

8:45 am-7:09 pm

1 stop9h 24m

Casper Natrona County

Mon 9/22

5:30 am-1:28 pm

1 stop8h 58m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 9/5

10:55 am-7:09 pm

1 stop7h 14m

Casper Natrona County

Fri 9/12

5:50 pm-10:42 pm

1 stop5h 52m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sun 8/31

5:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Sun 9/7

5:30 am-9:29 am

1 stop4h 59m

$313

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 8/26

5:15 am-12:42 pm

1 stop6h 27m

Casper Natrona County

Sat 8/30

3:11 pm-9:03 pm

1 stop6h 52m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 results
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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 $504). 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 August 14, 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.

  • 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 $504). 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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$253Average$507FlexibilityNo cancel feeOn-time69%

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