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Cheap flights from Casper to Washington 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 Casper to Washington departing on 1/18. 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 Casper to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:30 am - 9:45 am
CPR
-
PDX
5h 15m1 stop
United Airlines Logo
1:24 pm - 7:06 pm
PDX
-
CPR
4h 42m1 stop
$258United Airlines
Fri, Jan 9 - Mon, Jan 12
United Airlines Logo
6:08 pm - 10:59 pm
CPR
-
SEA
5h 51m1 stop
United Airlines Logo
12:55 pm - 8:26 pm
SEA
-
CPR
6h 31m1 stop
$258United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
3:17 pm - 12:43 am
CPR
-
PDX
10h 26m2 stops
United Airlines Logo
3:45 pm - 10:14 pm
PDX
-
CPR
5h 29m1 stop
$264United Airlines
Fri, Jan 9 - Mon, Jan 12
United Airlines Logo
6:08 pm - 10:59 pm
CPR
-
SEA
5h 51m1 stop
United Airlines Logo
8:30 am - 7:02 pm
SEA
-
CPR
9h 32m2 stops
$264United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
11:28 am - 6:56 pm
CPR
-
PDX
8h 28m2 stops
United Airlines Logo
1:35 pm - 10:14 pm
PDX
-
CPR
7h 39m2 stops
$269United Airlines
Fri, Jan 9 - Mon, Jan 12
United Airlines Logo
1:16 pm - 9:12 pm
CPR
-
PDX
8h 56m1 stop
United Airlines Logo
1:24 pm - 10:14 pm
PDX
-
CPR
7h 50m1 stop
$308United Airlines
Fri, Jan 16 - Tue, Jan 20
United Airlines Logo
9:00 am - 12:46 pm
CPR
-
GEG
4h 46m1 stop
United Airlines Logo
1:48 pm - 7:06 pm
GEG
-
CPR
4h 18m1 stop
$308United Airlines
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
1:20 pm - 6:03 pm
CPR
-
SEA
5h 43m1 stop
United Airlines Logo
9:00 am - 2:40 pm
SEA
-
CPR
4h 40m1 stop
$308United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
3:19 pm - 12:59 am
CPR
-
SEA
10h 40m2 stops
United Airlines Logo
5:02 am - 12:46 pm
SEA
-
CPR
6h 44m1 stop
$310United Airlines
Mon, Dec 22 - Sun, Jan 4
United Airlines Logo
11:28 am - 11:06 pm
CPR
-
PDX
12h 38m2 stops
United Airlines Logo
8:30 am - 7:06 pm
PDX
-
CPR
9h 36m1 stop
$314United Airlines
Fri, Jan 16 - Tue, Jan 20

United Airlines flights from Casper to State of Washington

Our best United Airlines deals on Casper to State of Washington flight tickets
United Airlines
Feb 19
CPR6:08 pmCasper Natrona County
5h 51m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Feb 23
SEA12:55 pmSeattle/Tacoma Intl
6h 31m
1 stop
CPR8:26 pmCasper Natrona County
$258
Find similar
United Airlines
Feb 19
CPR6:08 pmCasper Natrona County
5h 51m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Feb 23
SEA8:30 amSeattle/Tacoma Intl
9h 32m
2 stops
CPR7:02 pmCasper Natrona County
$264
Find similar
United Airlines
Jan 9
CPR11:28 amCasper Natrona County
8h 28m
2 stops
PDX6:56 pmPortland
Jan 12
PDX1:35 pmPortland
7h 39m
2 stops
CPR10:14 pmCasper Natrona County
$269
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Casper to State of Washington 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 December 11, 2025.
Use the filters below to find and compare flights from Casper to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 1/9

5:30 am-9:45 am

1 stop5h 15m

Portland

Mon 1/12

1:24 pm-7:06 pm

1 stop4h 42m

$258

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Thu 2/19

6:08 pm-10:59 pm

1 stop5h 51m

Seattle/Tacoma Intl

Mon 2/23

12:55 pm-8:26 pm

1 stop6h 31m

$258

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 1/9

3:17 pm-12:43 am

2 stops10h 26m

Portland

Mon 1/12

3:45 pm-10:14 pm

1 stop5h 29m

$264

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Thu 2/19

6:08 pm-10:59 pm

1 stop5h 51m

Seattle/Tacoma Intl

Mon 2/23

8:30 am-7:02 pm

2 stops9h 32m

$264

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 1/9

11:28 am-6:56 pm

2 stops8h 28m

Portland

Mon 1/12

1:35 pm-10:14 pm

2 stops7h 39m

$269

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 1/16

1:16 pm-9:12 pm

1 stop8h 56m

Portland

Tue 1/20

1:24 pm-10:14 pm

1 stop7h 50m

$308

CasperSpokane

CPR - GEG

CPRGEG

Casper Natrona County

Sat 1/31

9:00 am-12:46 pm

1 stop4h 46m

Spokane

Tue 2/3

1:48 pm-7:06 pm

1 stop4h 18m

$308

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Sat 2/14

1:20 pm-6:03 pm

1 stop5h 43m

Seattle/Tacoma Intl

Wed 2/18

9:00 am-2:40 pm

1 stop4h 40m

$308

CasperSeattle

CPR - SEA

CPRSEA

Casper Natrona County

Mon 12/22

3:19 pm-12:59 am

2 stops10h 40m

Seattle/Tacoma Intl

Sun 1/4

5:02 am-12:46 pm

1 stop6h 44m

$310

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

Fri 1/16

11:28 am-11:06 pm

2 stops12h 38m

Portland

Tue 1/20

8:30 am-7:06 pm

1 stop9h 36m

$314

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Casper to State of Washington

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 day to depart on your flight to State of Washington?

The cheapest day to depart from Casper to State of Washington is on a Tuesday. Travelers who choose to depart for State of Washington on a Tuesday will often find tickets for as low as $557. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Casper to State of Washington for around $718.

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

The cheapest time of day to fly to State of Washington is in the morning when flights can be purchased for as low as $568. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $577 on average. Flights to State of Washington from Casper in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Casper to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Casper to State of Washington

Fastest flight time

5h 15m

Direct flights

None
The fastest flight from Casper to State of Washington takes 5h 15m
There are no direct flights from Casper to State of Washington. There are no popular flight routes from Casper to State of Washington.
Search flight deals

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

    Prices for flights from Casper Natrona County Airport to Washington are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Casper Natrona County Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington 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 Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Casper to State of Washington

Compare and see reviews for airlines that fly from Casper to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from Casper.

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

Flights from Casper to Washington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Casper to Washington.

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

Yes momondo offers price alerts on flights to Washington from Casper. 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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