SEA - CPR

$298 Find Cheap Flights from Seattle to Casper - Compare and Save

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 8/19. 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$298
Typical prices: $528-$406
United Airlines
Wed 8/19Wed 8/26
SEA - CPR • 1 stop
Cheapest one-way
$309
United Airlines
Mon 7/6
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 • 27% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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 19 - Wed, Aug 26
United Airlines Logo
5:00 am - 12:45 pm
SEA
-
CPR
6h 45m
1 stop
United Airlines Logo
4:15 pm - 9:15 pm
CPR
-
SEA
6h 00m
1 stop
$298United 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
1:26 pm - 8:43 pm
CPR
-
SEA
8h 17m
2 stops
$339United Airlines
Wed, Aug 5 - Wed, Aug 12
United Airlines Logo
5:00 am - 12:42 pm
SEA
-
CPR
6h 42m
1 stop
United Airlines Logo
6:05 pm - 11:04 pm
CPR
-
SEA
5h 59m
1 stop
$374United Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
8:30 am - 5:03 pm
SEA
-
CPR
7h 33m
1 stop
United Airlines Logo
1:26 pm - 9:15 pm
CPR
-
SEA
8h 49m
1 stop
$378United Airlines
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
2:34 pm - 8:27 pm
SEA
-
CPR
4h 53m
1 stop
United Airlines Logo
1:26 pm - 8:43 pm
CPR
-
SEA
8h 17m
2 stops
$380United Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
12:43 pm - 8:17 pm
SEA
-
CPR
6h 34m
1 stop
United Airlines Logo
3:11 pm - 11:26 pm
CPR
-
SEA
9h 15m
2 stops
$384United Airlines
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
7:00 am - 7:09 pm
SEA
-
CPR
11h 09m
2 stops
United Airlines Logo
10:01 am - 9:58 pm
CPR
-
SEA
12h 57m
2 stops
$389United Airlines
Fri, Jul 3 - Sat, Jul 4
United Airlines Logo
3:40 pm - 9:59 pm
SEA
-
CPR
5h 19m
1 stop
United Airlines Logo
11:15 am - 11:18 pm
CPR
-
SEA
13h 03m
2 stops
$393United Airlines
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
12:15 pm - 9:59 pm
SEA
-
CPR
8h 44m
2 stops
United Airlines Logo
11:24 am - 11:26 pm
CPR
-
SEA
13h 02m
2 stops
$404United 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
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 December, where the average cost of round-trip tickets is $813 and $541 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$298
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 11% 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 $309 for a one-way ticket and $298 for a round-trip.

  • 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 9831 reviews
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

8.0 ExcellentAnonymous, Jun 2026
SAT - DEN
Read more United Airlines reviews

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

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

Information on your arrival and departure airports

Seattle (SEA)
Casper (CPR)