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$233+ Cheap flights from Portland to Casper (PDX - 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CPR
Dec 15 — Dec 221
Mon 12/15
Mon 12/22
1 adult, Economy
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Find 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 November 15, 2025.

This United Airlines deal was found by Cheapflights users on 11/12. 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 12/21:00 pmPDX - CPR
2 stops8h 15mUnited Airlines
Wed 12/105:30 amCPR - PDX
1 stop5h 08mUnited Airlines
Deal found 11/12$259
This United Airlines deal was found by Cheapflights users on 11/13. 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 12/108:30 amPDX - CPR
1 stop5h 08mUnited Airlines
Sun 12/145:30 amCPR - PDX
2 stops10h 28mUnited Airlines
Deal found 11/13$267
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/31:14 pmPDX - CPR
1 stop6h 19mUnited Airlines
Wed 12/101:30 pmCPR - PDX
1 stop8h 45mUnited Airlines
Deal found 11/12$308
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/25:00 amPDX - CPR
1 stop8h 38mUnited Airlines
Thu 12/111:30 pmCPR - PDX
1 stop8h 45mUnited Airlines
Deal found 11/12$323
This United Airlines deal was found by Cheapflights users on 11/13. 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 11/297:10 pmPDX - CPR
1 stop4h 58mUnited Airlines
Wed 12/35:30 amCPR - PDX
1 stop5h 08mUnited Airlines
Deal found 11/13$339

Cheap 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 November 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(United Airlines)

One-way from

$233
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$338
Provider with most accurate pricing for Portland-Casper Natrona County flight deals.
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Provider most trusted by Cheapflights users for Portland-Casper Natrona County flights.
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From Portland to Casper Natrona County
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One-way flight from Portland to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 15, 2025.
Use the filters below to find and compare flights from Portland to Casper that are best for you.

Fly from

Portland

Fly to

Casper

Route

Depart

Return

Price

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 12/2

1:00 pm-10:15 pm

2 stops8h 15m

Casper Natrona County

Wed 12/10

5:30 am-9:38 am

1 stop5h 08m

$259

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 12/10

8:30 am-2:38 pm

1 stop5h 08m

Casper Natrona County

Sun 12/14

5:30 am-2:58 pm

2 stops10h 28m

$267

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 1/28

1:24 pm-10:14 pm

1 stop7h 50m

Casper Natrona County

Wed 2/4

5:30 am-9:45 am

1 stop5h 15m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 12/3

5:00 am-10:46 am

1 stop4h 46m

Casper Natrona County

Thu 12/11

1:30 pm-9:15 pm

1 stop8h 45m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 2/28

8:30 am-5:20 pm

1 stop7h 50m

Casper Natrona County

Wed 3/4

1:20 pm-5:51 pm

1 stop5h 31m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Thu 1/29

3:45 pm-10:14 pm

1 stop5h 29m

Casper Natrona County

Wed 2/4

7:00 am-1:45 pm

1 stop7h 45m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 12/3

1:14 pm-8:33 pm

1 stop6h 19m

Casper Natrona County

Wed 12/10

1:30 pm-12:37 am

2 stops12h 07m

$314

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 12/12

4:02 pm-10:15 pm

1 stop5h 13m

$233

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 12/17

1:14 pm-8:33 pm

1 stop6h 19m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Casper flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Casper

What is the cheapest month to book a flight from Portland to Casper?

Currently, May is the cheapest month in which you can book a flight from Portland to Casper (average of $160). Flying from Portland to Casper in December is currently the most expensive (average of $591). 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 PDX to CPR?

Find hourly flight availability from Portland 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 November 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Casper in the afternoon. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from Portland to Casper?

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 November 15, 2025.
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
9,017 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

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
9,017 reviews
United Airlines
7.4
Good
9,017 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

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 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 8h 15m. 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 $238, was found to be the cheapest airline from Portland to Casper.. United Airlines is 43% 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.

  • What is the cheapest month to book a flight from Portland to Casper?

    Currently, May is the cheapest month in which you can book a flight from Portland to Casper (average of $160). Flying from Portland to Casper in December is currently the most expensive (average of $591). 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 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 November 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$394FlexibilityNo cancel feeOn-time69%

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