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$303+ Cheap flights from Casper to Portland (CPR - PDX)

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — PDX
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
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Cheap flight deals from Casper to Portland

Cheapest flights from Casper to Portland
Explore the most affordable flight options available from Casper to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.

This United Airlines deal was found by Cheapflights users on 6/15. 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.
Sat 8/291:26 pm
CPR
-
PDX
2 stops10h 19m
United Airlines
Tue 9/15:00 am
PDX
-
CPR
1 stop4h 49m
United Airlines
Deal found 6/15$304
This United Airlines deal was found by Cheapflights users on 6/14. 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 6/251:23 pm
CPR
-
PDX
1 stop5h 23m
United Airlines
Tue 6/3011:05 am
PDX
-
CPR
1 stop8h 21m
United Airlines
Deal found 6/14$438
This United Airlines deal was found by Cheapflights users on 6/16. 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 6/251:23 pm
CPR
-
PDX
1 stop8h 52m
United Airlines
Mon 6/2912:50 pm
PDX
-
CPR
1 stop8h 09m
United Airlines
Deal found 6/16$468
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 11/251:25 pm
CPR
-
PDX
1 stop8h 24m
United Airlines
Fri 12/48:45 am
PDX
-
CPR
1 stop8h 52m
United Airlines
Deal found 6/14$499
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Fri 6/199:26 am
CPR
-
PDX
2 stops14h 37m
United Airlines
Tue 6/235:00 am
PDX
-
CPR
1 stop8h 40m
United Airlines
Deal found 6/17$604

Find flight deals from Casper to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Casper (CPR) to Portland (PDX). 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 June 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$304
(United Airlines)

One-way from

$303
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$388
Provider with most accurate pricing for Casper Natrona County-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Casper Natrona County-Portland flights.
Search Deals
From Casper Natrona County to Portland
Search Deals
One-way flight from Casper Natrona County to Portland
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Casper to Portland 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 June 18, 2026.
Use the filters below to find and compare flights from Casper to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Sat 8/29

1:26 pm-10:45 pm

2 stops10h 19m

Portland

Tue 9/1

5:00 am-10:49 am

1 stop4h 49m

$304

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Wed 11/25

1:25 pm-8:49 pm

1 stop8h 24m

Portland

Fri 12/4

8:45 am-6:37 pm

1 stop8h 52m

$499

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Sat 11/21

1:25 pm-8:49 pm

1 stop8h 24m

Portland

Sun 11/29

12:40 pm-10:12 pm

1 stop8h 32m

$843
Cheapest one-way
Quickest one-way

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Thu 8/6

6:13 pm-11:13 pm

1 stop6h 00m

$303

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 7/3

11:21 am-12:58 pm

1 stop26h 37m

$522

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Sorted by cheapest first

Compare providers for flights from Casper to Portland

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 Casper to Portland in June.
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 Casper-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Casper-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Casper-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Casper-Portland 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 Casper-Portland 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 Casper to Portland

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

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

Currently, February is the cheapest month in which you can book a flight from Casper to Portland (average of $258). Flying from Casper to Portland in March is currently the most expensive (average of $976). 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.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated June 18, 2026.
Read reviews from past customers who have flown United Airlines from Casper to Portland. 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
9,859 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

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
9,859 reviews
United Airlines
7.4
Good
9,859 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

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 Portland. 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 Casper to Portland?

    Airlines like United Airlines fly from Casper to Portland in about 10h 19m. The time it takes to get you to your destination can typically vary by up to . The distance from Casper to Portland is about 817 mi.

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

    Flying on United Airlines is currently your cheapest option to Portland, with prices starting at $257. United Airlines is 40% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Casper to Portland 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 Casper to Portland?

    Currently, February is the cheapest month in which you can book a flight from Casper to Portland (average of $258). Flying from Casper to Portland in March is currently the most expensive (average of $976). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Seaside
Beaverton
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Gresham

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Casper to Portland

Discover the top airline that operate flights from Casper to Portland. 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 June 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$257Average$342FlexibilityNo cancel feeOn-time69%

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