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$238+ Cheap flights from Casper to Portland (CPR - PDX)

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — PDX
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$238
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$308
From Casper Natrona County to Portland
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

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.
Thu 10/306:05 pmCPR - PDX
1 stop5h 51mUnited Airlines
Sat 11/18:30 amPDX - CPR
1 stop7h 23mUnited Airlines
Deal found 9/13$238
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.
Wed 11/56:05 pmCPR - PDX
1 stop5h 51mUnited Airlines
Mon 11/245:00 amPDX - CPR
1 stop4h 45mUnited Airlines
Deal found 9/14$258
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.
Fri 10/315:30 amCPR - PDX
1 stop5h 08mUnited Airlines
Sun 11/25:00 amPDX - CPR
1 stop4h 45mUnited Airlines
Deal found 9/13$273
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 11/75:30 amCPR - PDX
1 stop5h 08mUnited Airlines
Tue 11/255:00 amPDX - CPR
1 stop4h 45mUnited Airlines
Deal found 9/14$318
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.
Wed 11/56:05 pmCPR - PDX
1 stop5h 51mUnited Airlines
Thu 11/201:00 pmPDX - CPR
2 stops7h 58mUnited Airlines
Deal found 9/14$346
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 9/147:05 amCPR - PDX
1 stop6h 58mUnited Airlines
Sat 9/201:01 pmPDX - CPR
1 stop6h 20mUnited Airlines
Deal found 9/13$383

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 September 15, 2025.
Use the filters below to find and compare flights from Casper to Portland that are best for you.

Fly from

Casper

Fly to

Portland

Route

Depart

Return

Price

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Thu 10/30

6:05 pm-10:56 pm

1 stop5h 51m

Portland

Sat 11/1

8:30 am-4:53 pm

1 stop7h 23m

$238

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Wed 11/5

6:05 pm-10:56 pm

1 stop5h 51m

Portland

Thu 11/20

4:02 pm-9:58 pm

1 stop4h 56m

$238

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Wed 11/5

6:05 pm-10:56 pm

1 stop5h 51m

Portland

Mon 11/24

5:00 am-10:45 am

1 stop4h 45m

$258

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 10/31

5:30 am-9:38 am

1 stop5h 08m

Portland

Sun 11/2

5:00 am-10:45 am

1 stop4h 45m

$273

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 10/3

1:32 pm-11:56 am

2 stops23h 24m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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

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

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 September 15, 2025.
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
8,929 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 5h 51m. 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 $268. United Airlines is 32% 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, November is the cheapest month in which you can book a flight from Casper to Portland (average of $277). Flying from Casper to Portland in March is currently the most expensive (average of $368). 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
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Cannon Beach
Long Beach
Longview
Lincoln City
Tigard
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Troutdale
Gresham
Silverton

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$413FlexibilityNo cancel feeOn-time69%

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