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Cheap flights from Portland to Casper from $268

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Casper departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:15 pm - 10:05 pm
PDX
-
CPR
4h 50m
1 stop
United Airlines Logo
11:21 am - 5:44 pm
CPR
-
PDX
7h 23m
1 stop
$328United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
4:21 pm - 9:59 pm
PDX
-
CPR
4h 38m
1 stop
United Airlines Logo
7:05 am - 10:49 pm
CPR
-
PDX
16h 44m
2 stops
$404United Airlines
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
4:21 pm - 9:59 pm
PDX
-
CPR
4h 38m
1 stop
United Airlines Logo
5:15 am - 8:54 pm
CPR
-
PDX
16h 39m
2 stops
$414United Airlines
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
4:21 pm - 9:59 pm
PDX
-
CPR
4h 38m
1 stop
United Airlines Logo
1:23 pm - 9:15 pm
CPR
-
PDX
8h 52m
1 stop
$428United Airlines
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
4:21 pm - 9:59 pm
PDX
-
CPR
4h 38m
1 stop
United Airlines Logo
1:23 pm - 9:15 pm
CPR
-
PDX
8h 52m
1 stop
$438United Airlines
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
12:50 pm - 10:05 pm
PDX
-
CPR
8h 15m
1 stop
United Airlines Logo
8:45 am - 11:03 pm
CPR
-
PDX
15h 18m
2 stops
$444United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
11:05 am - 7:15 pm
PDX
-
CPR
7h 10m
1 stop
United Airlines Logo
11:15 am - 5:46 pm
CPR
-
PDX
7h 31m
1 stop
$485United Airlines
Tue, May 26 - Sat, May 30
United Airlines Logo
4:21 pm - 9:59 pm
PDX
-
CPR
4h 38m
1 stop
United Airlines Logo
8:45 am - 8:54 pm
CPR
-
PDX
13h 09m
2 stops
$504United Airlines
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
11:16 am - 10:05 pm
PDX
-
CPR
9h 49m
2 stops
United Airlines Logo
8:45 am - 8:54 pm
CPR
-
PDX
13h 09m
2 stops
$509United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
4:21 pm - 9:59 pm
PDX
-
CPR
4h 38m
1 stop
United Airlines Logo
1:23 pm - 9:15 pm
CPR
-
PDX
8h 52m
1 stop
$529United Airlines
Wed, Jun 24 - Tue, Jun 30

United Airlines flights from Portland to Casper

Our best United Airlines deals on Portland to Casper flight tickets
United Airlines
May 23
PDX4:15 pmPortland
4h 50m
1 stop
CPR10:05 pmCasper Natrona County
May 27
CPR11:21 amCasper Natrona County
7h 23m
1 stop
PDX5:44 pmPortland
$328
United Airlines
Jun 24
PDX4:21 pmPortland
4h 38m
1 stop
CPR9:59 pmCasper Natrona County
Jun 30
CPR7:05 amCasper Natrona County
16h 44m
2 stops
PDX10:49 pmPortland
$404
United Airlines
Jun 24
PDX4:21 pmPortland
4h 38m
1 stop
CPR9:59 pmCasper Natrona County
Jun 30
CPR5:15 amCasper Natrona County
16h 39m
2 stops
PDX8:54 pmPortland
$414

momondo 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, momondo users made 832,500 searches. Data last updated May 12, 2026.
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 - CPR

PDXCPR

Portland

Sat 5/23

4:15 pm-10:05 pm

1 stop4h 50m

Casper Natrona County

Wed 5/27

11:21 am-5:44 pm

1 stop7h 23m

$328

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 6/24

4:21 pm-9:59 pm

1 stop4h 38m

Casper Natrona County

Tue 6/30

7:05 am-10:49 pm

2 stops16h 44m

$404

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 6/24

4:21 pm-9:59 pm

1 stop4h 38m

Casper Natrona County

Tue 6/30

5:15 am-8:54 pm

2 stops16h 39m

$414

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 6/24

4:21 pm-9:59 pm

1 stop4h 38m

Casper Natrona County

Tue 6/30

1:23 pm-9:15 pm

1 stop8h 52m

$428

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 6/24

4:21 pm-9:59 pm

1 stop4h 38m

Casper Natrona County

Tue 6/30

1:23 pm-9:15 pm

1 stop8h 52m

$438

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 5/23

12:50 pm-10:05 pm

1 stop8h 15m

Casper Natrona County

Wed 5/27

8:45 am-11:03 pm

2 stops15h 18m

$444

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 5/26

11:05 am-7:15 pm

1 stop7h 10m

Casper Natrona County

Sat 5/30

11:15 am-5:46 pm

1 stop7h 31m

$485

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 6/24

4:21 pm-9:59 pm

1 stop4h 38m

Casper Natrona County

Tue 6/30

8:45 am-8:54 pm

2 stops13h 09m

$504

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 5/23

11:16 am-10:05 pm

2 stops9h 49m

Casper Natrona County

Wed 5/27

8:45 am-8:54 pm

2 stops13h 09m

$509

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 6/24

4:21 pm-9:59 pm

1 stop4h 38m

Casper Natrona County

Tue 6/30

1:23 pm-9:15 pm

1 stop8h 52m

$529

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portland to Casper

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Casper?

What is the cheapest month to fly to Casper?

In general, April is the cheapest month to fly from Portland to Casper. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $264. If you aren’t able to travel during the month of April, then book flights to Casper from Portland during February instead. Flights to Casper in February, while not as cheap as those in April, still average around $283.

When to book flights from Portland to Casper

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Casper according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Casper (PDX to CPR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Casper

Fastest flight time

4h 46m

Direct flights

None
The fastest flight from Portland to Casper takes 4h 46m
There are no direct flights from Portland to Casper. There are no popular flight routes from Portland to Casper.
Search flight deals

Frequently asked questions about flying from Portland to Casper

  • How far is Portland to Casper Natrona County by plane?

    The straight-line distance from Portland to Casper Natrona County is 828.7 mi. By plane, this route typically takes 4h 46m.

  • When did momondo last update prices for flights from Portland Airport to Casper Natrona County Airport?

    Prices for flights from Portland Airport to Casper Natrona County Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Casper Natrona County Airport?

  • How old do you have to be to fly from Portland Airport to Casper Natrona County Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Casper Natrona County Airport.

  • What documentation or ID do you need to fly to Casper Natrona County Airport?

    The travel and health documents you'll need for your trip to Casper Natrona County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Casper Natrona County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Casper?

Best airlines flying from Portland to Casper

Compare and see reviews for airlines that fly from Portland to Casper with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins
Evansville
Douglas

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Casper?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Casper. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Casper with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Casper flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Casper?

Once all potential Portland to Casper flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Casper right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Casper from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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