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$248+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CPR
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 August 20, 2025.

Round-trip from

$248
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$438
From Portland to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($46 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 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 August 20, 2025.

This United Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 9/25:00 amPDX - CPR
1 stop4h 50mUnited Airlines
Sat 9/65:30 amCPR - PDX
1 stop4h 58mUnited Airlines
Deal found 8/18$248
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 9/194:07 pmPDX - CPR
1 stop5h 07mUnited Airlines
Mon 9/225:50 pmCPR - PDX
1 stop5h 52mUnited Airlines
Deal found 8/18$302
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/31:45 pmPDX - CPR
2 stops7h 29mUnited Airlines
Sun 9/75:30 amCPR - PDX
2 stops8h 13mUnited Airlines
Deal found 8/19$323
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 8/2110:55 amPDX - CPR
1 stop8h 26mUnited Airlines
Mon 8/255:50 pmCPR - PDX
1 stop5h 52mUnited Airlines
Deal found 8/17$383
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Mon 8/187:35 pmPDX - CPR
2 stops16h 07mUnited Airlines
Fri 8/225:50 pmCPR - PDX
1 stop20h 13mUnited Airlines
Deal found 8/18$1,320

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 August 20, 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

Wed 9/3

5:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Sun 9/7

5:50 pm-10:42 pm

1 stop5h 52m

$248

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 9/2

5:00 am-10:50 am

1 stop4h 50m

Casper Natrona County

Sat 9/6

5:30 am-9:28 am

1 stop4h 58m

$248

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 9/19

4:07 pm-10:14 pm

1 stop5h 07m

Casper Natrona County

Mon 9/22

5:50 pm-10:42 pm

1 stop5h 52m

$302

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 1/28

12:40 pm-10:12 pm

1 stop8h 32m

Casper Natrona County

Wed 2/4

6:01 pm-10:38 pm

1 stop5h 37m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Thu 1/29

9:10 am-2:40 pm

1 stop4h 30m

Casper Natrona County

Wed 2/4

6:01 pm-10:38 pm

1 stop5h 37m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 10/14

5:00 am-12:41 pm

1 stop6h 41m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

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, January is the cheapest month in which you can book a flight from Portland to Casper (average of $348). Flying from Portland 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 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 August 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Casper at noon. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight in the morning.

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 August 20, 2025.
Get a feel of what it's like to fly with Delta and 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.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 6h 42m. 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 are the cheapest airlines flying from Portland to Casper round-trip?

    Delta, at $238, was found to be the cheapest airline from Portland to Casper. An alternate airline flying to your destination would be United Airlines. Delta is 45% 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, January is the cheapest month in which you can book a flight from Portland to Casper (average of $348). Flying from Portland 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 2 airlines flying from Portland to Casper

Discover the top 2 airlines 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$303FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$380FlexibilityNo cancel feeOn-time69%

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