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Casper

$328+ Cheap flights from Seattle to Casper (SEA - CPR)

SEA — CPR
Nov 7 — Nov 141
Sat 11/7
Sat 11/14
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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Cheap flight deals from Seattle to Casper

Cheapest flights from Seattle to Casper

Sat 10/313:49 pm -
1 stop5h 10m
Sat 11/73:13 pm -
1 stop7h 06m
Deal found 10/3$328
Fri 10/233:55 pm -
1 stop5h 09m
Thu 10/295:57 pm -
1 stop6h 18m
Deal found 10/6$343
Sat 10/247:11 am -
2 stops8h 52m
Thu 10/295:57 pm -
1 stop6h 18m
Deal found 10/6$349
Thu 10/222:27 pm -
1 stop4h 50m
Mon 10/261:29 pm -
2 stops9h 21m
Deal found 10/6$364
Thu 11/125:05 am -
1 stop6h 43m
Sat 11/148:20 am -
1 stop6h 35m
Deal found 10/6$428
Mon 11/212:20 pm -
2 stops8h 39m
Tue 11/1711:24 am -
2 stops8h 02m
Deal found 10/6$439

Find flight deals from Seattle to Casper

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$328
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$476
Provider with most accurate pricing for Seattle/Tacoma Intl-Casper Natrona County flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Casper Natrona County flights.
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From Seattle/Tacoma Intl to Casper Natrona County
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Highest demand for flights based on searches. 8% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Wed 11/4

5:05 am-12:48 pm

1 stop6h 43m

Casper Natrona County

Wed 11/11

5:57 pm-11:15 pm

1 stop6h 18m

$328

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Sat 10/31

1:16 pm-9:59 pm

2 stops7h 43m

Casper Natrona County

Sat 11/7

5:15 am-12:20 pm

2 stops8h 05m

$339
Quickest round-trip

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Fri 10/23

3:55 pm-10:04 pm

1 stop5h 09m

Casper Natrona County

Thu 10/29

5:57 pm-11:15 pm

1 stop6h 18m

$343

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Thu 10/22

2:27 pm-8:17 pm

1 stop4h 50m

Casper Natrona County

Mon 10/26

1:29 pm-9:50 pm

2 stops9h 21m

$364

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Mon 11/2

3:49 pm-9:59 pm

1 stop5h 10m

Casper Natrona County

Tue 11/17

5:15 am-1:54 pm

1 stop9h 39m

$428

SeattleCasper

SEA Seattle/Tacoma Intl - CPR Casper Natrona County

SEACPR

Seattle/Tacoma Intl

Thu 11/12

5:05 am-12:48 pm

1 stop6h 43m

Casper Natrona County

Sat 11/14

8:20 am-1:55 pm

1 stop6h 35m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/4

Sorted by cheapest first

Compare providers for flights from Seattle to Casper

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Casper in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Casper flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Casper flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Casper flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Casper flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Casper

What is the cheapest month to book a flight from Seattle to Casper?

Currently, January is the cheapest month in which you can book a flight from Seattle to Casper (average of $343). Flying from Seattle to Casper in December is currently the most expensive (average of $687). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Casper

Read through reviews of airlines operating flights from Seattle to Casper, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,316 reviews

Entertainment

7.1

Boarding

7.7

Food

6.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.4
Good
10,316 reviews
United Airlines
7.4
Good
10,316 reviews

Entertainment

7.1

Boarding

7.7

Food

6.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • How long is the flight from Seattle to Casper?

    There are many flights that can get you from Seattle to Casper in 6h 43m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 831 mi.

  • What is the cheapest airline to fly from Seattle to Casper round-trip?

    United Airlines, at $273, was found to be the cheapest airline from Seattle to Casper.. This flight start at 44% lower than the current average price 3 months from now.

  • Can I find deals for flights from Seattle to Casper that include hotel bookings?

    Yes. In addition to deals on Seattle to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Casper.

  • Can I find deals for business class flights from Seattle to Casper?

    Yes. Cheapflights offers flight deals from Seattle to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Casper?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Casper (average of $343). Flying from Seattle to Casper in December is currently the most expensive (average of $687). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins
Douglas

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Top airline flying from Seattle to Casper

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$273Average$440FlexibilityNo cancel feeOn-time69%

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