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$353+ Cheap flights from Casper to Portland (CPR - PDX)

CPR — PDX
Oct 27 — Nov 31
Tue 10/27
Tue 11/3
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Casper to Portland

Cheapest flights from Casper to Portland

Thu 10/86:00 pm -
1 stop5h 53m
Wed 10/145:00 am -
1 stop4h 48m
Deal found 9/24$375
Wed 10/76:00 pm -
1 stop5h 53m
Wed 10/145:00 am -
1 stop4h 48m
Deal found 9/24$388
Wed 9/3011:23 am -
1 stop7h 23m
Thu 10/810:43 am -
1 stop7h 11m
Deal found 9/24$403
Fri 10/166:00 pm -
1 stop5h 53m
Mon 10/265:00 am -
1 stop4h 49m
Deal found 9/25$406
Fri 10/96:00 pm -
1 stop5h 53m
Tue 10/135:00 am -
1 stop4h 48m
Deal found 9/24$423
Sat 11/77:00 am -
1 stop7h 25m
Tue 11/101:15 pm -
1 stop4h 38m
Deal found 9/24$428
Thu 10/810:06 am -
2 stops13h 51m
Tue 10/135:00 am -
1 stop4h 48m
Deal found 9/24$464

Find flight deals from Casper to Portland

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$353
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$448
Provider with most accurate pricing for Casper Natrona County-Portland flight deals.
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Provider most trusted by Cheapflights users for Casper Natrona County-Portland flights.
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From Casper Natrona County to Portland
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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

CasperPortland

CPR Casper Natrona County - PDX Portland

CPRPDX

Casper Natrona County

Thu 1/7

1:25 pm-5:38 pm

1 stop5h 13m

Portland

Sun 1/10

8:45 am-5:04 pm

1 stop7h 19m

$353

CasperPortland

CPR Casper Natrona County - PDX Portland

CPRPDX

Casper Natrona County

Wed 10/7

5:15 am-9:28 am

1 stop5h 13m

Portland

Wed 10/14

5:30 am-2:36 pm

2 stops8h 06m

$394
Quickest round-trip

CasperPortland

CPR Casper Natrona County - PDX Portland

CPRPDX

Casper Natrona County

Sat 11/7

7:00 am-1:25 pm

1 stop7h 25m

Portland

Tue 11/10

1:15 pm-6:53 pm

1 stop4h 38m

$428

CasperPortland

CPR Casper Natrona County - PDX Portland

CPRPDX

Casper Natrona County

Wed 11/25

5:15 am-9:36 am

1 stop5h 21m

Portland

Fri 12/4

5:00 am-2:48 pm

1 stop8h 48m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

Sorted by cheapest first

Compare providers for flights from Casper to Portland

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Casper to Portland in September.
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

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

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
10,248 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.4
Good
10,248 reviews
United Airlines
7.4
Good
10,248 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • How long is the flight from Casper to Portland?

    Airlines like United Airlines fly from Casper to Portland in about 5h 13m. 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 42% 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
Beaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Cannon Beach
Vancouver
Kelso
Troutdale
Clackamas
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Casper to Portland

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$257Average$352FlexibilityNo cancel feeOn-time69%

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