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$298+ Cheap flights from Portland to Casper (PDX - CPR)

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CPR
Aug 16 — Aug 231
Sun 8/16
Sun 8/23
1 adult, Economy
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Cheap flight deals from Portland to Casper

Cheapest flights from Portland to Casper
Explore the most affordable flight options available from Portland to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.

This United Airlines deal was found by Cheapflights users on 7/13. 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.
Tue 8/45:00 am
PDX
-
CPR
1 stop6h 42m
United Airlines
Tue 8/115:15 am
CPR
-
PDX
1 stop5h 17m
United Airlines
Deal found 7/13$298
This United Airlines deal was found by Cheapflights users on 7/12. 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 9/45:00 am
PDX
-
CPR
1 stop4h 49m
United Airlines
Sun 9/65:15 am
CPR
-
PDX
2 stops10h 32m
United Airlines
Deal found 7/12$304
This United Airlines deal was found by Cheapflights users on 7/13. 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 7/245:00 am
PDX
-
CPR
1 stop6h 42m
United Airlines
Thu 7/306:13 pm
CPR
-
PDX
1 stop6h 00m
United Airlines
Deal found 7/13$374
This United Airlines deal was found by Cheapflights users on 7/12. 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 10/205:00 am
PDX
-
CPR
1 stop4h 48m
United Airlines
Sat 10/241:26 pm
CPR
-
PDX
1 stop5h 20m
United Airlines
Deal found 7/12$378
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/85:00 am
PDX
-
CPR
1 stop6h 42m
United Airlines
Fri 8/144:28 pm
CPR
-
PDX
1 stop5h 37m
United Airlines
Deal found 7/13$382
This United Airlines deal was found by Cheapflights users on 7/15. 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 8/55:00 am
PDX
-
CPR
1 stop4h 46m
United Airlines
Tue 8/111:26 pm
CPR
-
PDX
2 stops10h 19m
United Airlines
Deal found 7/15$386
This United Airlines deal was found by Cheapflights users on 7/12. 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 7/178:35 am
PDX
-
CPR
2 stops10h 58m
United Airlines
Sun 7/266:13 pm
CPR
-
PDX
1 stop6h 00m
United Airlines
Deal found 7/12$464

Find flight deals from Portland to Casper

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Casper (CPR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(United Airlines)

Popular in

September

Cheapest in

April
Provider with most accurate pricing for Portland-Casper Natrona County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Casper Natrona County flights.
Search Deals
From Portland to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 37% potential increase in price ($279 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($61 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 July 17, 2026.
Use the filters below to find and compare flights from Portland to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 8/5

5:00 am-10:46 am

1 stop4h 46m

Casper Natrona County

Tue 8/11

4:15 pm-9:05 pm

1 stop5h 50m

$298

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 8/4

5:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Tue 8/11

5:15 am-9:32 am

1 stop5h 17m

$298

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 9/16

5:00 am-10:49 am

1 stop4h 49m

Casper Natrona County

Wed 9/23

1:26 pm-8:40 pm

2 stops8h 14m

$304

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 9/4

5:00 am-10:49 am

1 stop4h 49m

Casper Natrona County

Sun 9/6

5:15 am-2:47 pm

2 stops10h 32m

$304
Quickest round-trip

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 10/20

5:00 am-10:48 am

1 stop4h 48m

Casper Natrona County

Sat 10/24

1:26 pm-5:46 pm

1 stop5h 20m

$378

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 8/8

5:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Fri 8/14

4:28 pm-9:05 pm

1 stop5h 37m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Sorted by cheapest first

Compare providers for flights from Portland to Casper

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Casper in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Casper flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Casper flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Casper flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Casper flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Casper

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

Reviews of airlines servicing Casper

Get insights into the airlines that provide service to Casper. 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 Casper. Reviews last updated July 17, 2026.
Get a feel of what it's like to fly with United Airlines from Portland to Casper by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,997 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,997 reviews
United Airlines
7.4
Good
9,997 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from Portland to Casper. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Casper?

    Airlines like United Airlines fly from Portland to Casper in about 4h 46m. The time it takes to get you to your destination can typically vary by up to . Portland and Casper are separated by a distance of 817 mi.

  • What is the cheapest airline to fly from Portland to Casper round-trip?

    United Airlines, at $257, was found to be the cheapest airline from Portland to Casper.. United Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

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 Portland to Casper

Discover the top airline that operate flights from Portland 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 July 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$257Average$338FlexibilityNo cancel feeOn-time69%

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