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Casper

$378+ Cheap flights from Portland to Casper (PDX - CPR)

PDX — CPR
Nov 22 — Nov 291
Sun 11/22
Sun 11/29
1 adult, Economy
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1. Tell us where you want to go

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3. Compare prices and book

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Cheap flight deals from Portland to Casper

Cheapest flights from Portland to Casper

Wed 11/44:25 pm -
1 stop4h 34m
Sun 11/85:57 pm -
1 stop6h 12m
Deal found 10/20$378
Tue 11/175:00 am -
1 stop4h 49m
Tue 11/245:15 am -
1 stop5h 21m
Deal found 10/20$393
Fri 11/204:25 pm -
1 stop4h 34m
Fri 11/275:57 pm -
1 stop6h 12m
Deal found 10/21$453
Sun 11/155:00 am -
1 stop4h 49m
Wed 11/185:15 am -
1 stop5h 21m
Deal found 10/20$576
Mon 11/235:00 am -
1 stop4h 49m
Sat 11/285:57 pm -
1 stop9h 11m
Deal found 10/18$594
Mon 11/95:00 am -
1 stop6h 48m
Fri 11/1311:24 am -
1 stop27h 01m
Deal found 10/20$626

Find flight deals from Portland to Casper

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$378
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$448
Provider with most accurate pricing for Portland-Casper Natrona County flight deals.
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Provider most trusted by Cheapflights users for Portland-Casper Natrona County flights.
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From Portland to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($28 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).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandCasper

PDX Portland - CPR Casper Natrona County

PDXCPR

Portland

Wed 11/4

4:25 pm-9:59 pm

1 stop4h 34m

Casper Natrona County

Sun 11/8

5:57 pm-11:09 pm

1 stop6h 12m

$378

PortlandCasper

PDX Portland - CPR Casper Natrona County

PDXCPR

Portland

Tue 2/23

8:55 am-6:56 pm

1 stop9h 01m

Casper Natrona County

Sat 2/27

3:15 pm-8:59 pm

1 stop6h 44m

$448

PortlandCasper

PDX Portland - CPR Casper Natrona County

PDXCPR

Portland

Fri 11/20

4:25 pm-9:59 pm

1 stop4h 34m

Casper Natrona County

Fri 11/27

5:57 pm-11:09 pm

1 stop6h 12m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Sorted by cheapest first

Compare providers for flights from Portland to Casper

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Casper in October.
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 Portland-Casper flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Casper flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Casper 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 Portland-Casper 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 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

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, April is the cheapest month in which you can book a flight from Portland to Casper (average of $264). Flying from Portland to Casper in December is currently the most expensive (average of $563). 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.

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

Airfare is typical for this route at the moment.

Portland to Casper flights typically cost between $288 and $852 in November.
The cheapest round-trip price found within the last 5 days was $378 on United Airlines (Nov 4-Nov 8).

Reviews of airlines servicing Casper

Get a feel of what it's like to fly with 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.
United Airlines
7.3
Good
10,422 reviews

Overall

7.3

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

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
7.3
Good
10,422 reviews
United Airlines
7.3
Good
10,422 reviews

Overall

7.3

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

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 Portland to Casper?

    Airlines like United Airlines fly from Portland to Casper in about 4h 34m. 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 is the cheapest airline to fly from Portland to Casper round-trip?

    United Airlines, at $257, was found to be the cheapest airline from Portland to Casper.. United Airlines is 31% 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, April is the cheapest month in which you can book a flight from Portland to Casper (average of $264). Flying from Portland to Casper in December is currently the most expensive (average of $563). 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
Douglas

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Top airline flying from Portland to Casper

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$257Average$343FlexibilityNo cancel feeOn-time69%

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