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$255+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CPR
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$255
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$308
From Portland to Casper Natrona County
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Highest demand for flights based on searches. 9% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 11/74:02 pmPDX - CPR
1 stop4h 56mUnited Airlines
Tue 11/185:30 amCPR - PDX
1 stop5h 08mUnited Airlines
Deal found 9/14$255
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/295:00 amPDX - CPR
1 stop4h 47mUnited Airlines
Fri 10/36:00 pmCPR - PDX
1 stop16h 30mUnited Airlines
Deal found 9/14$427
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/275:00 amPDX - CPR
1 stop4h 45mUnited Airlines
Sun 11/306:05 pmCPR - PDX
1 stop16h 33mUnited Airlines
Deal found 9/14$531
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/266:00 amPDX - CPR
2 stops14h 58mUnited Airlines
Sun 11/306:05 pmCPR - PDX
1 stop16h 33mUnited Airlines
Deal found 9/13$650
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 9/148:35 amPDX - CPR
1 stop5h 01mUnited Airlines
Sun 9/145:50 pmCPR - PDX
1 stop5h 52mUnited Airlines
Deal found 9/13$883

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 September 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

Fri 11/7

4:02 pm-9:58 pm

1 stop4h 56m

Casper Natrona County

Tue 11/18

5:30 am-9:38 am

1 stop5h 08m

$255

PortlandCasper

PDX - CPR

PDXCPR

Portland

Mon 9/29

5:30 am-8:17 pm

3 stops13h 47m

Casper Natrona County

Fri 10/3

3:12 pm-9:30 am

1 stop19h 18m

$437

PortlandCasper

PDX - CPR

PDXCPR

Portland

Thu 11/27

5:00 am-10:45 am

1 stop4h 45m

Casper Natrona County

Sun 11/30

6:05 pm-9:38 am

1 stop16h 33m

$531

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 11/26

7:10 pm-10:45 am

1 stop14h 35m

Casper Natrona County

Sun 11/30

6:05 pm-9:38 am

1 stop16h 33m

$654

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 10/14

8:35 am-4:53 pm

1 stop7h 18m

$268

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 10/17

3:50 pm-8:17 pm

2 stops27h 27m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 $500). 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 September 15, 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.

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 September 15, 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
7,954 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

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
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

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 4h 56m. 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 46% 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 $500). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$379FlexibilityNo cancel feeOn-time69%

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