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$308+ Cheap flights from Casper (CPR) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — SEA
dic. 18 — dic. 251
jue. 12/18
jue. 12/25
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 noviembre 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$308
(United Airlines)

Popular in

January

Cheapest in

February

Average price

$536
Provider with most accurate pricing for Casper Natrona County-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Casper Natrona County-Seattle/Tacoma Intl flights.
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From Casper Natrona County to Washington
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Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in November 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 noviembre 18, 2025.

This United Airlines deal was found by Cheapflights users on 11/17. 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.
sáb. 12/65:30 amCPR - GEG
1 stop8h 15mUnited Airlines
mié. 12/101:47 pmGEG - CPR
1 stop5h 46mUnited Airlines
Deal found 11/17$323
This United Airlines deal was found by Cheapflights users on 11/17. 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. 11/2111:20 amCPR - PDX
1 stop7h 32mUnited Airlines
dom. 11/238:30 amPDX - CPR
1 stop7h 23mUnited Airlines
Deal found 11/17$358
This United Airlines deal was found by Cheapflights users on 11/17. 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.
sáb. 11/223:18 pmCPR - SEA
1 stop6h 55mUnited Airlines
sáb. 12/68:40 amSEA - CPR
1 stop7h 11mUnited Airlines
Deal found 11/17$383
This United Airlines deal was found by Cheapflights users on 11/17. 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. 11/1811:20 amCPR - GEG
1 stop5h 01mUnited Airlines
lun. 11/245:10 amGEG - CPR
1 stop8h 31mUnited Airlines
Deal found 11/17$504
This United Airlines deal was found by Cheapflights users on 11/17. 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. 11/241:25 pmCPR - PDX
1 stop9h 01mUnited Airlines
lun. 12/18:30 amPDX - CPR
1 stop9h 47mUnited Airlines
Deal found 11/17$525
This United Airlines deal was found by Cheapflights users on 11/18. 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.
sáb. 12/273:19 pmCPR - SEA
1 stop8h 53mUnited Airlines
mié. 12/315:02 amSEA - CPR
1 stop4h 49mUnited Airlines
Deal found 11/18$538
This United Airlines deal was found by Cheapflights users on 11/17. 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. 11/281:25 pmCPR - PDX
1 stop9h 01mUnited Airlines
dom. 11/304:02 pmPDX - CPR
1 stop4h 56mUnited Airlines
Deal found 11/17$859

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 noviembre 18, 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

mié. 1/14

9:00 am-6:10 pm

1 stop10h 10m

Portland

mar. 1/20

5:00 am-10:53 am

1 stop4h 53m

$308

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

sáb. 3/7

1:25 pm-9:10 pm

1 stop8h 45m

Portland

mar. 3/10

1:00 pm-9:59 pm

1 stop7h 59m

$308

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

sáb. 2/28

9:00 am-6:03 pm

1 stop10h 03m

Seattle/Tacoma Intl

mar. 3/3

9:00 am-7:02 pm

1 stop9h 02m

$308

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

sáb. 12/6

7:00 am-12:45 pm

1 stop6h 45m

Spokane

mié. 12/10

5:25 am-2:38 pm

1 stop8h 13m

$323

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

sáb. 12/27

5:30 am-1:58 pm

1 stop9h 28m

Seattle/Tacoma Intl

mié. 12/31

5:02 am-2:40 pm

1 stop8h 38m

$538

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

vie. 11/28

1:25 pm-9:26 pm

1 stop9h 01m

Portland

dom. 11/30

4:02 pm-9:58 pm

1 stop4h 56m

$859

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

dom. 11/23

5:30 am-9:38 am

1 stop5h 08m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

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, May 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 January is currently the most expensive (average of $738). 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.

How much does it cost to fly round-trip from Casper to State of Washington?

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 noviembre 18, 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
9,019 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,019 reviews
United Airlines
7.4
Good
9,019 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

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

    Airlines like United Airlines fly from Casper to State of Washington in about 5h 29m. The time it takes to get you to your destination can typically vary by up to . The distance from Casper to State of Washington is about 817 mi.

  • 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, May 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 January is currently the most expensive (average of $738). 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.

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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 noviembre 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$256Average$443FlexibilityNo cancel feeOn-time69%

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