What is the cheapest airline that flies from Washington to Casper Natrona County?

United Airlines is the most popular carrier operating from Washington to Casper Natrona County

How long does it take to fly to Casper?

The flight from State of Washington to Casper depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Pasco (a popular airport in State of Washington) to Casper (the most popular airport in Casper), then the flight time is 4h 27m on average. If you fly from Seattle (another popular airport in State of Washington) to Casper, then the average flight time is 4h 40m.

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

Prices for flights from Washington to Casper Natrona County Airport are refreshed on a daily basis.

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

As of October 2025, there is 1 operator available to choose from for flights from Washington to Casper Natrona County Airport.

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

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 Washington to Casper Natrona County Airport.

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

The necessary travel and health documents for your Casper Natrona County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$238 Cheap Flights from Washington to Casper in 2025/26

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Cheap round-trip flights

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3:48 pm - 9:58 pmSEA-CPR

5h 10m1 stop

5:30 am - 10:35 amCPR-SEA

6h 05m1 stop

$238United Airlines

Find Deal

Fri, Oct 31 - Tue, Nov 4

9:25 am - 8:17 pmSEA-CPR

9h 52m2 stops

5:30 am - 10:35 amCPR-SEA

6h 05m1 stop

$244United Airlines

Find Deal

Fri, Oct 31 - Tue, Nov 4

5:00 am - 10:47 amSEA-CPR

4h 47m1 stop

8:55 am - 3:32 pmCPR-SEA

7h 37m1 stop

$248United Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

5:20 am - 10:47 amPSC-CPR

4h 27m1 stop

8:55 am - 12:52 pmCPR-PSC

4h 57m1 stop

$248United Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

1:38 pm - 6:47 pmGEG-CPR

4h 09m1 stop

3:12 pm - 8:24 pmCPR-GEG

6h 12m1 stop

$248United Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

5:00 am - 12:41 pmSEA-CPR

6h 41m1 stop

1:32 pm - 9:15 pmCPR-SEA

8h 43m2 stops

$254United Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

1:33 pm - 10:12 pmPSC-CPR

7h 39m2 stops

7:00 am - 12:52 pmCPR-PSC

6h 52m1 stop

$254United Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

1:33 pm - 10:12 pmPSC-CPR

7h 39m2 stops

1:32 pm - 11:15 pmCPR-PSC

10h 43m2 stops

$259United Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

10:50 am - 4:53 pmPDX-CPR

5h 03m1 stop

6:05 pm - 10:56 pmCPR-PDX

5h 51m1 stop

$264United Airlines

Find Deal

Wed, Oct 22 - Sun, Oct 26

1:20 pm - 9:58 pmSEA-CPR

7h 38m2 stops

1:25 pm - 8:51 pmCPR-SEA

8h 26m2 stops

$277United Airlines

Find Deal

Fri, Oct 31 - Tue, Nov 4

United Airlines flights from State of Washington to Casper

Our best United Airlines deals on State of Washington to Casper flight tickets

United Airlines

Oct 31

SEA3:48 pmSeattle/Tacoma Intl

5h 10m

1 stop

CPR9:58 pmCasper Natrona County

Nov 4

CPR5:30 amCasper Natrona County

6h 05m

1 stop

SEA10:35 amSeattle/Tacoma Intl

$238

Find similar

United Airlines

Oct 31

SEA9:25 amSeattle/Tacoma Intl

9h 52m

2 stops

CPR8:17 pmCasper Natrona County

Nov 4

CPR5:30 amCasper Natrona County

6h 05m

1 stop

SEA10:35 amSeattle/Tacoma Intl

$244

Find similar

United Airlines

Oct 21

SEA5:00 amSeattle/Tacoma Intl

4h 47m

1 stop

CPR10:47 amCasper Natrona County

Oct 25

CPR8:55 amCasper Natrona County

7h 37m

1 stop

SEA3:32 pmSeattle/Tacoma Intl

$248

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Fri 10/31

3:48 pm-9:58 pm

1 stop5h 10m

Casper Natrona County

Tue 11/4

5:30 am-10:35 am

1 stop6h 05m

$238

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Fri 10/31

9:25 am-8:17 pm

2 stops9h 52m

Casper Natrona County

Tue 11/4

5:30 am-10:35 am

1 stop6h 05m

$244

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Tue 10/21

5:00 am-10:47 am

1 stop4h 47m

Casper Natrona County

Sat 10/25

8:55 am-3:32 pm

1 stop7h 37m

$248

PascoCasper

PSC - CPR

PSCCPR

Pasco Tri Cities

Tue 10/21

5:20 am-10:47 am

1 stop4h 27m

Casper Natrona County

Sat 10/25

8:55 am-12:52 pm

1 stop4h 57m

$248

SpokaneCasper

GEG - CPR

GEGCPR

Spokane

Tue 10/21

1:38 pm-6:47 pm

1 stop4h 09m

Casper Natrona County

Sat 10/25

3:12 pm-8:24 pm

1 stop6h 12m

$248

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Tue 10/21

5:00 am-12:41 pm

1 stop6h 41m

Casper Natrona County

Sat 10/25

1:32 pm-9:15 pm

2 stops8h 43m

$254

PascoCasper

PSC - CPR

PSCCPR

Pasco Tri Cities

Tue 10/21

1:33 pm-10:12 pm

2 stops7h 39m

Casper Natrona County

Sat 10/25

7:00 am-12:52 pm

1 stop6h 52m

$254

PascoCasper

PSC - CPR

PSCCPR

Pasco Tri Cities

Tue 10/21

1:33 pm-10:12 pm

2 stops7h 39m

Casper Natrona County

Sat 10/25

1:32 pm-11:15 pm

2 stops10h 43m

$259

PortlandCasper

PDX - CPR

PDXCPR

Portland

Wed 10/22

10:50 am-4:53 pm

1 stop5h 03m

Casper Natrona County

Sun 10/26

6:05 pm-10:56 pm

1 stop5h 51m

$264

SeattleCasper

SEA - CPR

SEACPR

Seattle/Tacoma Intl

Fri 10/31

1:20 pm-9:58 pm

2 stops7h 38m

Casper Natrona County

Tue 11/4

1:25 pm-8:51 pm

2 stops8h 26m

$277

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How to get the cheapest flight ticket from State of Washington 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

Prices

Airlines

Other information

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

The cheapest day to depart from State of Washington to Casper is on a Wednesday when prices can be found for as low as $500. The most expensive day to fly to Casper is Tuesday, with ticket prices averaging around $778.

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 morning when flights can be purchased for as low as $596. Flights to Casper are more costly in the afternoon, with an average ticket price of $753. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap State of Washington to Casper flight deals and tips

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

Direct flights	None

There are no direct flights from State of Washington to Casper. There are no popular flight routes from State of Washington to Casper.

Search flight deals

When did momondo last update prices for flights from Washington to Casper Natrona County Airport?
Prices for flights from Washington to Casper Natrona County Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Casper Natrona County Airport?
As of October 2025, there is 1 operator available to choose from for flights from Washington to Casper Natrona County Airport.
How old do you have to be to fly from Washington to Casper Natrona County Airport?
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 Washington to Casper Natrona County Airport.
What documentation or ID do you need to fly to Casper Natrona County Airport?
The necessary travel and health documents for your Casper Natrona County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Casper

Compare and see reviews for airlines that fly from State of Washington to Casper with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 8,964 reviews		Search United Airlines flights

Rawlins

Evansville

Douglas

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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 Casper from Washington.

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

All flight searches from Washington to Casper on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Washington 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.

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Cheap flights from Washington to Casper from $238

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Casper departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from State of Washington 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 day to depart on your flight to Casper?

The cheapest day to depart from State of Washington to Casper is on a Wednesday when prices can be found for as low as $500. The most expensive day to fly to Casper is Tuesday, with ticket prices averaging around $778.

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

What is the cheapest airline that flies from Washington to Casper Natrona County?

United Airlines is the most popular carrier operating from Washington to Casper Natrona County

How long does it take to fly to Casper?

Cheap State of Washington to Casper flight deals and tips

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

Direct flights

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

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

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

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

Best airlines flying from State of Washington to Casper

Compare and see reviews for airlines that fly from State of Washington to Casper with momondo

Traveling to a place near Casper?

Why use momondo?

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

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

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

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

An easier way to manage your Casper trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Wyoming