SEA - CPR

$308 Find Cheap Flights from Seattle to Casper

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Casper departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Casper

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Casper, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Casper, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$308
Typical prices: $454-$360
United Airlines
Wed 8/26Wed 9/2
SEA - CPR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Casper. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 31% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Casper!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Casper (SEA-CPR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Casper that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Casper

Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
2:34 pm - 8:27 pm
SEA
-
CPR
4h 53m
1 stop
United Airlines Logo
6:05 pm - 11:04 pm
CPR
-
SEA
5h 59m
1 stop
$308United Airlines
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
2:34 pm - 8:27 pm
SEA
-
CPR
4h 53m
1 stop
United Airlines Logo
4:15 pm - 11:04 pm
CPR
-
SEA
7h 49m
1 stop
$388United Airlines
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
5:00 am - 10:49 am
SEA
-
CPR
4h 49m
1 stop
United Airlines Logo
10:01 am - 9:58 pm
CPR
-
SEA
12h 57m
2 stops
$394United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
9:02 am - 10:12 pm
SEA
-
CPR
12h 10m
2 stops
United Airlines Logo
1:25 pm - 8:48 pm
CPR
-
SEA
8h 23m
2 stops
$399United Airlines
Sat, Jul 25 - Wed, Jul 29
United Airlines Logo
6:00 am - 8:26 pm
SEA
-
CPR
13h 26m
2 stops
United Airlines Logo
7:05 am - 7:03 pm
CPR
-
SEA
12h 58m
2 stops
$409United Airlines
Wed, Jul 22 - Wed, Jul 29
United Airlines Logo
8:58 am - 7:10 pm
SEA
-
CPR
9h 12m
1 stop
United Airlines Logo
9:26 am - 1:29 am
CPR
-
SEA
17h 03m
2 stops
$414United Airlines
Wed, Jul 22 - Wed, Jul 29
United Airlines Logo
8:35 am - 9:59 pm
SEA
-
CPR
12h 24m
2 stops
United Airlines Logo
9:26 am - 1:29 am
CPR
-
SEA
17h 03m
2 stops
$419United Airlines
Sat, Jun 20 - Fri, Jun 26
United Airlines Logo
5:07 am - 12:42 pm
SEA
-
CPR
6h 35m
1 stop
United Airlines Logo
6:13 pm - 11:10 pm
CPR
-
SEA
5h 57m
1 stop
$422United Airlines
Wed, Jul 29 - Wed, Aug 5
United Airlines Logo
8:58 am - 7:10 pm
SEA
-
CPR
9h 12m
1 stop
United Airlines Logo
6:05 pm - 11:10 pm
CPR
-
SEA
6h 05m
1 stop
$428United Airlines
Wed, Jul 29 - Wed, Aug 5
United Airlines Logo
3:40 pm - 9:59 pm
SEA
-
CPR
5h 19m
1 stop
United Airlines Logo
6:05 pm - 11:10 pm
CPR
-
SEA
6h 05m
1 stop
$436United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Casper flights

Get data-powered insights and trends into flights from Seattle to Casper to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Casper?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Casper departing in August.

What is the cheapest month to fly from Seattle to Casper?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Casper, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Casper is January, where tickets cost $343 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $813 and $699 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$308
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Seattle to Casper

When to book flights from Seattle to Casper

Are your dates flexible? Find out the best times to travel from Seattle to Casper based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Casper

  • What is the cheapest flight from Seattle to Casper?

    In the last 5 days, the lowest price for a flight from Seattle to Casper was $308 for a round-trip ticket.

  • Do I need a passport to fly between Seattle and Casper?

    No, a passport isn't needed to fly from Seattle to Casper. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Seattle to Casper?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Casper?

    Star Alliance is the only airline alliance operating flights between Seattle and Casper.

  • How does KAYAK find such low prices on flights from Seattle to Casper?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Casper.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Casper?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Casper from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Casper?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Casper with an airline and back to Seattle with another airline. Booking your flights between Seattle and CPR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Casper?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Casper from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Casper

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Casper. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Casper? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9775 reviews
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

10.0 ExcellentAnonymous, Jun 2026
GSP - IAH
Read more United Airlines reviews

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

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

Information on your arrival and departure airports

Seattle (SEA)
Casper (CPR)