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Cheap flights from Portland to Casper from $243

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 3/6. 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
5:05 am - 10:51 am
PDX
-
CPR
4h 46m
1 stop
United Airlines Logo
5:25 am - 9:42 am
CPR
-
PDX
5h 17m
1 stop
$263United Airlines
Sun, Feb 22 - Tue, Mar 3
United Airlines Logo
4:00 pm - 10:09 pm
PDX
-
CPR
5h 09m
1 stop
United Airlines Logo
11:26 am - 5:51 pm
CPR
-
PDX
7h 25m
1 stop
$268United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:05 am - 10:51 am
PDX
-
CPR
4h 46m
1 stop
United Airlines Logo
7:10 am - 2:48 pm
CPR
-
PDX
8h 38m
2 stops
$269United Airlines
Sun, Feb 22 - Tue, Mar 3
United Airlines Logo
4:00 pm - 10:09 pm
PDX
-
CPR
5h 09m
1 stop
United Airlines Logo
5:25 am - 2:48 pm
CPR
-
PDX
10h 23m
2 stops
$274United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:05 am - 12:40 pm
PDX
-
CPR
6h 35m
1 stop
United Airlines Logo
5:25 am - 9:42 am
CPR
-
PDX
5h 17m
1 stop
$282United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
4:00 pm - 10:09 pm
PDX
-
CPR
5h 09m
1 stop
United Airlines Logo
3:15 pm - 11:14 pm
CPR
-
PDX
8h 59m
1 stop
$333United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
7:30 am - 10:09 pm
PDX
-
CPR
13h 39m
2 stops
United Airlines Logo
1:20 pm - 9:15 pm
CPR
-
PDX
8h 55m
1 stop
$369United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
4:00 pm - 10:09 pm
PDX
-
CPR
5h 09m
1 stop
United Airlines Logo
1:20 pm - 10:59 pm
CPR
-
PDX
10h 39m
2 stops
$370United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
1:40 pm - 10:09 pm
PDX
-
CPR
7h 29m
2 stops
United Airlines Logo
5:25 am - 12:38 pm
CPR
-
PDX
8h 13m
2 stops
$394United Airlines
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:05 am - 10:51 am
PDX
-
CPR
4h 46m
1 stop
United Airlines Logo
5:25 am - 1:44 pm
CPR
-
PDX
9h 19m
1 stop
$525United Airlines
Tue, Mar 24 - Sat, Mar 28

United Airlines flights from Portland to Casper

Our best United Airlines deals on Portland to Casper flight tickets
United Airlines
Feb 22
PDX5:05 amPortland
4h 46m
1 stop
CPR10:51 amCasper Natrona County
Mar 3
CPR5:25 amCasper Natrona County
5h 17m
1 stop
PDX9:42 amPortland
$263
United Airlines
Feb 20
PDX4:00 pmPortland
5h 09m
1 stop
CPR10:09 pmCasper Natrona County
Feb 24
CPR11:26 amCasper Natrona County
7h 25m
1 stop
PDX5:51 pmPortland
$268
United Airlines
Feb 22
PDX5:05 amPortland
4h 46m
1 stop
CPR10:51 amCasper Natrona County
Mar 3
CPR7:10 amCasper Natrona County
8h 38m
2 stops
PDX2:48 pmPortland
$269

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 February 8, 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

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sun 2/22

5:05 am-10:51 am

1 stop4h 46m

Casper Natrona County

Tue 3/3

5:25 am-9:42 am

1 stop5h 17m

$263

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

4:00 pm-10:09 pm

1 stop5h 09m

Casper Natrona County

Tue 2/24

11:26 am-5:51 pm

1 stop7h 25m

$268

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sun 2/22

5:05 am-10:51 am

1 stop4h 46m

Casper Natrona County

Tue 3/3

7:10 am-2:48 pm

2 stops8h 38m

$269

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

4:00 pm-10:09 pm

1 stop5h 09m

Casper Natrona County

Tue 2/24

5:25 am-2:48 pm

2 stops10h 23m

$274

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

5:05 am-12:40 pm

1 stop6h 35m

Casper Natrona County

Fri 2/27

5:25 am-9:42 am

1 stop5h 17m

$282

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

4:00 pm-10:09 pm

1 stop5h 09m

Casper Natrona County

Fri 2/27

3:15 pm-11:14 pm

1 stop8h 59m

$333

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

7:30 am-10:09 pm

2 stops13h 39m

Casper Natrona County

Fri 2/27

1:20 pm-9:15 pm

1 stop8h 55m

$369

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

4:00 pm-10:09 pm

1 stop5h 09m

Casper Natrona County

Fri 2/27

1:20 pm-10:59 pm

2 stops10h 39m

$370

PortlandCasper

PDX - CPR

PDXCPR

Portland

Fri 2/20

1:40 pm-10:09 pm

2 stops7h 29m

Casper Natrona County

Tue 2/24

5:25 am-12:38 pm

2 stops8h 13m

$394

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 3/24

5:05 am-10:51 am

1 stop4h 46m

Casper Natrona County

Sat 3/28

5:25 am-1:44 pm

1 stop9h 19m

$525

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Casper from

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 cheapest month to fly to Casper?

In general, February 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 $283. If you aren’t able to travel during the month of February, then book flights to Casper from Portland during April instead. Flights to Casper in April, while not as cheap as those in February, still average around $302.

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

  • 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 $238Free CancellationRating
7.4
9,257 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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