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Cheap flights from Portland to Casper from $233

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 8/31. 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

United Airlines Logo
5:00 am - 2:36 pmPDX-CPR
8h 36m1 stop
United Airlines Logo
5:30 am - 1:03 pmCPR-PDX
8h 33m1 stop
$308United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
1:45 pm - 10:14 pmPDX-CPR
7h 29m2 stops
United Airlines Logo
5:30 am - 1:03 pmCPR-PDX
8h 33m1 stop
$314United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
4:02 pm - 9:58 pmPDX-CPR
4h 56m1 stop
United Airlines Logo
5:30 am - 9:38 amCPR-PDX
5h 08m1 stop
$394United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
10:05 am - 9:58 pmPDX-CPR
10h 53m2 stops
United Airlines Logo
3:18 pm - 9:26 pmCPR-PDX
7h 08m1 stop
$399United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
10:55 am - 6:44 pmPDX-CPR
6h 49m1 stop
United Airlines Logo
5:59 pm - 10:16 pmCPR-PDX
5h 17m1 stop
$404United Airlines
Find Deal
Tue, Aug 12 - Sat, Aug 16
United Airlines Logo
9:48 am - 10:14 pmPDX-CPR
11h 26m2 stops
United Airlines Logo
9:10 am - 6:32 pmCPR-PDX
10h 22m2 stops
$433United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
12:40 pm - 10:12 pmPDX-CPR
8h 32m1 stop
United Airlines Logo
5:30 am - 9:51 amCPR-PDX
5h 21m1 stop
$464United Airlines
Find Deal
Wed, Dec 24 - Sun, Dec 28
United Airlines Logo
7:10 pm - 12:31 pmPDX-CPR
16h 21m1 stop
United Airlines Logo
1:30 pm - 9:15 pmCPR-PDX
8h 45m1 stop
$507United Airlines
Find Deal
Mon, Dec 1 - Fri, Dec 12
United Airlines Logo
7:10 pm - 12:31 pmPDX-CPR
16h 21m1 stop
United Airlines Logo
1:30 pm - 10:52 pmCPR-PDX
10h 22m2 stops
$512United Airlines
Find Deal
Mon, Dec 1 - Fri, Dec 12
United Airlines Logo
7:38 pm - 12:31 pmPDX-CPR
15h 53m2 stops
United Airlines Logo
3:17 pm - 10:52 pmCPR-PDX
8h 35m2 stops
$543United Airlines
Find Deal
Mon, Dec 1 - Fri, Dec 12

United Airlines flights from Portland to Casper

Our best United Airlines deals on Portland to Casper flight tickets
United Airlines
Aug 23
PDX5:00 amPortland
8h 36m
1 stop
CPR2:36 pmCasper Natrona County
Aug 30
CPR5:30 amCasper Natrona County
8h 33m
1 stop
PDX1:03 pmPortland
$308
Find similar
United Airlines
Aug 23
PDX1:45 pmPortland
7h 29m
2 stops
CPR10:14 pmCasper Natrona County
Aug 30
CPR5:30 amCasper Natrona County
8h 33m
1 stop
PDX1:03 pmPortland
$314
Find similar
United Airlines
Nov 1
PDX4:02 pmPortland
4h 56m
1 stop
CPR9:58 pmCasper Natrona County
Nov 8
CPR5:30 amCasper Natrona County
5h 08m
1 stop
PDX9:38 amPortland
$394
Find similar

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 July 29, 2025.
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

Sat 8/23

5:00 am-2:36 pm

1 stop8h 36m

Casper Natrona County

Sat 8/30

5:30 am-1:03 pm

1 stop8h 33m

$308

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 8/23

1:45 pm-10:14 pm

2 stops7h 29m

Casper Natrona County

Sat 8/30

5:30 am-1:03 pm

1 stop8h 33m

$314

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 11/1

4:02 pm-9:58 pm

1 stop4h 56m

Casper Natrona County

Sat 11/8

5:30 am-9:38 am

1 stop5h 08m

$394

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 11/1

10:05 am-9:58 pm

2 stops10h 53m

Casper Natrona County

Sat 11/8

3:18 pm-9:26 pm

1 stop7h 08m

$399

PortlandCasper

PDX - CPR

PDXCPR

Portland

Tue 8/12

10:55 am-6:44 pm

1 stop6h 49m

Casper Natrona County

Sat 8/16

5:59 pm-10:16 pm

1 stop5h 17m

$404

PortlandCasper

PDX - CPR

PDXCPR

Portland

Sat 8/23

9:48 am-10:14 pm

2 stops11h 26m

Casper Natrona County

Sat 8/30

9:10 am-6:32 pm

2 stops10h 22m

$433

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 12/24

12:40 pm-10:12 pm

1 stop8h 32m

Casper Natrona County

Sun 12/28

5:30 am-9:51 am

1 stop5h 21m

$464

PortlandCasper

PDX - CPR

PDXCPR

Portland

Mon 12/1

7:10 pm-12:31 pm

1 stop16h 21m

Casper Natrona County

Fri 12/12

1:30 pm-9:15 pm

1 stop8h 45m

$507

PortlandCasper

PDX - CPR

PDXCPR

Portland

Mon 12/1

7:10 pm-12:31 pm

1 stop16h 21m

Casper Natrona County

Fri 12/12

1:30 pm-10:52 pm

2 stops10h 22m

$512

PortlandCasper

PDX - CPR

PDXCPR

Portland

Mon 12/1

7:38 pm-12:31 pm

2 stops15h 53m

Casper Natrona County

Fri 12/12

3:17 pm-10:52 pm

2 stops8h 35m

$543

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 typical price of a round-trip flight between Portland and Casper?

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 $238. 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 $308.

What is the cheapest day to depart on your flight to Casper?

The cheapest day to depart from Portland to Casper is on a Friday when prices can be found for as low as $300. The most expensive day to fly to Casper is Sunday, with ticket prices averaging around $520.

What is the cheapest time of day to depart on your flight to Casper?

The cheapest time of day to fly to Casper is in the afternoon when flights can be purchased for as low as $323. Flights to Casper are more costly in the morning, with an average ticket price of $398. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Best Price Found

$233

Fastest flight time

4h 50m

Direct flights

None

Airports in Casper

1 airport
The best one-way flight to Casper from Portland in the past 72 hours is $233. The best round-trip flight deal from Portland to Casper found on momondo in the last 72 hours is $308.
The fastest flight from Portland to Casper takes 4h 50m
There are no direct flights from Portland to Casper. Popular non-direct route for this connection is Portland Airport - Casper Natrona County Airport.
There is 1 airport near Casper: Casper Natrona County (CPR)
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  • 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 56m.

  • 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
DeltaPriceFrom $238Free CancellationRating
8.0
7,979 reviews
Search Delta flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
8,896 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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