Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Casper from $278

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 12:39 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
6h 39m1 stop Denver Intl
United Airlines Logo
11:23 am - 4:03 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
5h 40m1 stop Denver Intl
$343United Airlines
Thu, Oct 8 - Thu, Oct 22
United Airlines Logo
5:00 am - 12:39 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
6h 39m1 stop Denver Intl
United Airlines Logo
11:23 am - 7:29 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
9h 06m2 stops Denver Intl Los Angeles
$349United Airlines
Sat, Oct 10 - Tue, Oct 13
United Airlines Logo
3:55 pm - 10:04 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
5h 09m1 stop Denver Intl
United Airlines Logo
6:00 pm - 10:59 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
5h 59m1 stop Denver Intl
$358United Airlines
Fri, Oct 2 - Mon, Oct 5
United Airlines Logo
12:43 pm - 8:17 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
6h 34m1 stop Denver Intl
United Airlines Logo
3:11 pm - 9:15 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
7h 04m1 stop Denver Intl
$358United Airlines
Tue, Oct 6 - Sat, Oct 10
United Airlines Logo
3:55 pm - 10:04 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
5h 09m1 stop Denver Intl
United Airlines Logo
7:15 am - 3:50 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
9h 35m2 stops Denver Intl Los Angeles
$364United Airlines
Sat, Oct 3 - Wed, Oct 7
United Airlines Logo
12:16 pm - 10:04 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
8h 48m2 stops Los Angeles Denver Intl
United Airlines Logo
3:11 pm - 9:15 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
7h 04m1 stop Denver Intl
$364United Airlines
Tue, Oct 6 - Sat, Oct 10
United Airlines Logo
3:55 pm - 10:04 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
5h 09m1 stop Denver Intl
United Airlines Logo
11:23 am - 7:29 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
9h 06m2 stops Denver Intl Los Angeles
$364United Airlines
Fri, Oct 2 - Mon, Oct 5
United Airlines Logo
12:43 pm - 6:54 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
5h 11m1 stop Denver Intl
United Airlines Logo
11:23 am - 7:29 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
9h 06m2 stops Denver Intl Los Angeles
$368United Airlines
Fri, Oct 9 - Tue, Oct 13
United Airlines Logo
5:00 am - 12:39 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
6h 39m1 stop Denver Intl
United Airlines Logo
3:11 pm - 9:15 pmCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
7h 04m1 stop Denver Intl
$379United Airlines
Sat, Oct 10 - Tue, Oct 13
United Airlines Logo
2:27 pm - 8:17 pmSEA  Seattle/Tacoma Intl-CPR Casper Natrona County
4h 50m1 stop Denver Intl
United Airlines Logo
5:15 am - 10:01 amCPR  Casper Natrona County-SEA Seattle/Tacoma Intl
5h 46m1 stop Denver Intl
$379United Airlines
Fri, Oct 9 - Tue, Oct 13

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Seattle to Casper

Our best United Airlines deals on Seattle to Casper flight tickets
United Airlines
Oct 8
SEA5:00 amSeattle/Tacoma Intl
6h 39m
1 stop
CPR12:39 pmCasper Natrona County
Oct 22
CPR11:23 amCasper Natrona County
5h 40m
1 stop
SEA4:03 pmSeattle/Tacoma Intl
$343
United Airlines
Oct 10
SEA5:00 amSeattle/Tacoma Intl
6h 39m
1 stop
CPR12:39 pmCasper Natrona County
Oct 13
CPR11:23 amCasper Natrona County
9h 06m
2 stops
SEA7:29 pmSeattle/Tacoma Intl
$349
United Airlines
Oct 2
SEA3:55 pmSeattle/Tacoma Intl
5h 09m
1 stop
CPR10:04 pmCasper Natrona County
Oct 5
CPR6:00 pmCasper Natrona County
5h 59m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$358

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Thu 10/8

5:00 am-12:39 pm

1 stop6h 39m

Casper Natrona County

Thu 10/22

11:23 am-4:03 pm

1 stop5h 40m

$343

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Sat 10/10

5:00 am-12:39 pm

1 stop6h 39m

Casper Natrona County

Tue 10/13

11:23 am-7:29 pm

2 stops9h 06m

$349

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Fri 10/2

3:55 pm-10:04 pm

1 stop5h 09m

Casper Natrona County

Mon 10/5

6:00 pm-10:59 pm

1 stop5h 59m

$358

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Tue 10/6

12:43 pm-8:17 pm

1 stop6h 34m

Casper Natrona County

Sat 10/10

3:11 pm-9:15 pm

1 stop7h 04m

$358

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Sat 10/3

3:55 pm-10:04 pm

1 stop5h 09m

Casper Natrona County

Wed 10/7

7:15 am-3:50 pm

2 stops9h 35m

$364

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Tue 10/6

12:16 pm-10:04 pm

2 stops8h 48m

Casper Natrona County

Sat 10/10

3:11 pm-9:15 pm

1 stop7h 04m

$364

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Fri 10/2

3:55 pm-10:04 pm

1 stop5h 09m

Casper Natrona County

Mon 10/5

11:23 am-7:29 pm

2 stops9h 06m

$364

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Fri 10/9

12:43 pm-6:54 pm

1 stop5h 11m

Casper Natrona County

Tue 10/13

11:23 am-7:29 pm

2 stops9h 06m

$368

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Sat 10/10

5:00 am-12:39 pm

1 stop6h 39m

Casper Natrona County

Tue 10/13

3:11 pm-9:15 pm

1 stop7h 04m

$379
Quickest round-trip

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Fri 10/9

2:27 pm-8:17 pm

1 stop4h 50m

Casper Natrona County

Tue 10/13

5:15 am-10:01 am

1 stop5h 46m

$379

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Casper from

How to get the cheapest flight ticket from Seattle 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 Seattle and Casper?

Prices are currently typical for flights on this route.

Typical prices usually range from $316 to $441.
The lowest price recently found on this route was $343.

What is the cheapest month to fly to Casper?

In general, October is the cheapest month to fly from Seattle to Casper. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $308. If you aren’t able to travel during the month of October, then book flights to Casper from Seattle during January instead. Flights to Casper in January, while not as cheap as those in October, still average around $343.

When to book flights from Seattle to Casper

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

Cheap Seattle to Casper (SEA to CPR) flight deals and tips

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

Best Price Found

$278

Fastest flight time

4h 48m

Direct flights

None
The best one-way flight to Casper from Seattle in the past 72 hours is $278. The best round-trip flight deal from Seattle to Casper found on momondo in the last 72 hours is $343.
The fastest flight from Seattle to Casper takes 4h 48m
There are no direct flights from Seattle to Casper. There are no popular flight routes from Seattle to Casper.
Search flight deals

Frequently asked questions about flying from Seattle to Casper

  • How far is Seattle/Tacoma Intl to Casper Natrona County by plane?

    Casper Natrona County is 843.3 mi away from Seattle/Tacoma Intl. Flights usually cover this in 4h 48m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Casper Natrona County Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Casper Natrona County Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Casper Natrona County Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport 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.

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

Best airlines flying from Seattle to Casper

Compare and see reviews for airlines that fly from Seattle to Casper with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $255Free CancellationRating
7.4
10,226 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
Douglas
Evansville

Why use momondo?

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

It is quick and easy to find Seattle to Casper flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Casper that suits you.

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

Flights from Seattle to Casper 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 Seattle to Casper?

Once you have performed a search for Seattle to Casper flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Seattle to Casper now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Casper and let you know when they 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/22
Thu 10/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States