HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$268+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — SEA
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Casper to Washington 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 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 May 30, 2026.

This United Airlines deal was found by Cheapflights users on 5/27. 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 9/26:05 pm
CPR
-
SEA
1 stop5h 59m
United Airlines
Wed 9/92:34 pm
SEA
-
CPR
1 stop4h 53m
United Airlines
Deal found 5/27$308
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/128:45 am
CPR
-
GEG
1 stop7h 27m
United Airlines
Tue 6/164:08 pm
GEG
-
CPR
1 stop4h 51m
United Airlines
Deal found 5/27$386
This United Airlines deal was found by Cheapflights users on 5/27. 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 10/247:05 am
CPR
-
GEG
1 stop6h 30m
United Airlines
Tue 10/275:00 am
GEG
-
CPR
1 stop4h 53m
United Airlines
Deal found 5/27$388
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Sat 11/76:01 pm
CPR
-
SEA
1 stop5h 58m
United Airlines
Sun 11/155:07 am
SEA
-
CPR
1 stop4h 46m
United Airlines
Deal found 5/29$388
This United Airlines deal was found by Cheapflights users on 5/25. 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 6/97:05 am
CPR
-
GEG
1 stop6h 32m
United Airlines
Sat 6/134:08 pm
GEG
-
CPR
1 stop4h 57m
United Airlines
Deal found 5/25$392
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Wed 7/229:26 am
CPR
-
SEA
2 stops17h 03m
United Airlines
Sat 7/256:00 am
SEA
-
CPR
2 stops13h 26m
United Airlines
Deal found 5/29$399
This United Airlines deal was found by Cheapflights users on 5/28. 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 7/226:05 pm
CPR
-
SEA
1 stop6h 05m
United Airlines
Sun 7/265:00 am
SEA
-
CPR
1 stop6h 42m
United Airlines
Deal found 5/28$421
This United Airlines deal was found by Cheapflights users on 5/26. 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 12/109:10 am
CPR
-
PDX
1 stop9h 28m
United Airlines
Sat 12/124:05 pm
PDX
-
CPR
1 stop5h 07m
United Airlines
Deal found 5/26$428
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Sat 6/139:26 am
CPR
-
GEG
1 stop6h 46m
United Airlines
Wed 6/174:08 pm
GEG
-
CPR
1 stop4h 51m
United Airlines
Deal found 5/29$438
This United Airlines deal was found by Cheapflights users on 5/27. 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 12/129:10 am
CPR
-
SEA
1 stop9h 59m
United Airlines
Tue 12/158:30 am
SEA
-
CPR
1 stop9h 07m
United Airlines
Deal found 5/27$438
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Thu 6/113:15 pm
CPR
-
GEG
1 stop6h 50m
United Airlines
Mon 8/34:18 pm
GEG
-
CPR
1 stop4h 41m
United Airlines
Deal found 5/29$447
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Wed 6/108:45 am
CPR
-
GEG
1 stop4h 52m
United Airlines
Sun 6/141:41 pm
GEG
-
CPR
1 stop7h 18m
United Airlines
Deal found 5/29$541

Find flight deals from Casper to Washington

Keep the following information in mind while searching for Casper to Washington flight deals. Data was last updated May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$308
(United Airlines)

One-way from

$268
(United Airlines)

Popular in

December

Cheapest in

May

Average price

$238
Provider with most accurate pricing for Casper Natrona County-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Casper Natrona County-Seattle/Tacoma Intl flights.
Search Deals
From Casper Natrona County to Washington
Search Deals
One-way flight from Casper Natrona County to Washington
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($214 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 30, 2026.
Use the filters below to find and compare flights from Casper to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Fri 6/12

8:45 am-3:12 pm

1 stop7h 27m

Spokane

Tue 6/16

4:08 pm-9:59 pm

1 stop4h 51m

$386

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Sat 11/14

11:25 am-6:09 pm

1 stop7h 44m

Seattle/Tacoma Intl

Wed 11/18

5:07 am-12:35 pm

1 stop6h 28m

$388
Quickest round-trip

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Tue 6/9

7:05 am-12:37 pm

1 stop6h 32m

Spokane

Sat 6/13

4:08 pm-10:05 pm

1 stop4h 57m

$392

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Sat 11/7

1:25 pm-11:21 pm

2 stops10h 56m

Seattle/Tacoma Intl

Sun 11/15

5:07 am-10:53 am

1 stop4h 46m

$394

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Wed 7/22

9:26 am-1:29 am

2 stops17h 03m

Seattle/Tacoma Intl

Sat 7/25

6:00 am-8:26 pm

2 stops13h 26m

$399

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Sat 6/13

9:26 am-3:12 pm

1 stop6h 46m

Spokane

Wed 6/17

4:08 pm-9:59 pm

1 stop4h 51m

$438

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Thu 6/11

3:15 pm-9:05 pm

1 stop6h 50m

Spokane

Mon 8/3

4:18 pm-9:59 pm

1 stop4h 41m

$447

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Tue 10/27

9:10 am-12:40 pm

1 stop4h 30m

Spokane

Sat 10/31

12:30 pm-6:04 pm

2 stops28h 34m

$532

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Sat 10/24

10:06 am-10:16 pm

2 stops13h 10m

Spokane

Tue 10/27

1:45 pm-10:12 pm

1 stop7h 27m

$532

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Wed 6/10

8:45 am-12:37 pm

1 stop4h 52m

Spokane

Sun 6/14

1:41 pm-9:59 pm

1 stop7h 18m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

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 May 30, 2026.
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
9,766 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,766 reviews
United Airlines
7.4
Good
9,766 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 7h 27m. 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 628 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 - Spokane and Casper Natrona County - Portland.

  • 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.

See more FAQs

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 Casper to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Seattle flights
Denver to O'Hare Intl flights
Denver to Las Vegas flights
Denver to Newark flights
Denver to Dallas/Fort Worth flights
Denver to LaGuardia flights
Denver to Los Angeles flights
Denver to John F Kennedy Intl flights
Denver to San Francisco flights
Denver to Orlando flights
Denver to Boston flights
Salt Lake City to Seattle flights
Denver to Ontario flights
Denver to Dulles Intl flights
Denver to Baltimore flights
Denver to Detroit flights
Denver to Miami flights
Salt Lake City to Los Angeles flights
Denver to Philadelphia flights
Denver to Portland flights
Denver to Santa Ana flights
Denver to Sky Harbor Intl flights
Denver to Hobby flights
Denver to Minneapolis flights
Denver to Nashville flights
Denver to Atlanta flights
Denver to Tampa flights
Salt Lake City to Dallas/Fort Worth flights
Salt Lake City to O'Hare Intl flights
Denver to San Diego flights
Denver to Midway flights
Salt Lake City to San Diego flights
Denver to Indianapolis flights
Denver to Reagan-National flights
Denver to George Bush Intcntl flights
Denver to Honolulu flights
Denver to Cleveland flights
Salt Lake City to Sky Harbor Intl flights
Salt Lake City to Newark flights
Denver to Charlotte flights
Salt Lake City to Orlando flights
Denver to Sacramento flights
Denver to Fort Lauderdale flights
Salt Lake City to John F Kennedy Intl flights
Denver to Raleigh flights
Salt Lake City to Dulles Intl flights
Denver to Kansas City flights
Denver to Grand Rapids flights
Salt Lake City to Honolulu flights
Denver to St. Louis flights

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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$212Average$393FlexibilityNo 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.