$263 Find Cheap Flights from Casper to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Casper to Washington departing on 10/7. 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 Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Casper to Washington, 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 Casper to Washington, as well as popular online travel agencies
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Cheap Flights from Casper to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop$358
Spokane
Spokane1 stop$328
Seattle
Seattle1 stop$358
Spokane
Spokane1 stop$328

Book Cheap Casper to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Casper to Washington 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 Casper to Washington

Sat, Jul 11 - Sat, Jul 18
United Airlines Logo
8:45 am - 3:12 pm
CPR
-
GEG
7h 27m
1 stop
United Airlines Logo
4:08 pm - 9:59 pm
GEG
-
CPR
4h 51m
1 stop
$328United Airlines
Sat, Jul 11 - Sat, Jul 18
United Airlines Logo
8:45 am - 3:12 pm
CPR
-
GEG
7h 27m
1 stop
United Airlines Logo
4:08 pm - 9:59 pm
GEG
-
CPR
4h 51m
1 stop
$356United Airlines
Sat, Jul 11 - Sat, Jul 18
United Airlines Logo
8:45 am - 3:12 pm
CPR
-
GEG
7h 27m
1 stop
United Airlines Logo
4:08 pm - 9:59 pm
GEG
-
CPR
4h 51m
1 stop
$357United Airlines
Wed, Jun 24 - Mon, Jun 29
United Airlines Logo
6:13 pm - 10:58 pm
CPR
-
PDX
5h 45m
1 stop
United Airlines Logo
4:15 pm - 9:59 pm
PDX
-
CPR
4h 44m
1 stop
$358United Airlines
Wed, Nov 25 - Tue, Dec 15
United Airlines Logo
6:01 pm - 10:59 pm
CPR
-
SEA
5h 58m
1 stop
United Airlines Logo
5:07 am - 10:53 am
SEA
-
CPR
4h 46m
1 stop
$358United Airlines
Wed, Sep 23 - Sat, Sep 26
United Airlines Logo
4:15 pm - 10:53 pm
CPR
-
PDX
7h 38m
1 stop
United Airlines Logo
5:00 am - 10:48 am
PDX
-
CPR
4h 48m
1 stop
$378United Airlines
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
9:10 am - 3:19 pm
CPR
-
GEG
7h 09m
1 stop
United Airlines Logo
5:00 am - 10:53 am
GEG
-
CPR
4h 53m
1 stop
$378United Airlines
Sat, Nov 7 - Sun, Nov 15
United Airlines Logo
3:15 pm - 10:59 pm
CPR
-
SEA
8h 44m
1 stop
United Airlines Logo
5:07 am - 10:53 am
SEA
-
CPR
4h 46m
1 stop
$378United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
1:26 pm - 10:45 pm
CPR
-
PDX
10h 19m
2 stops
United Airlines Logo
10:50 am - 8:27 pm
PDX
-
CPR
8h 37m
1 stop
$384United Airlines
Sat, Nov 7 - Sun, Nov 15
United Airlines Logo
1:25 pm - 12:33 am
CPR
-
SEA
12h 08m
2 stops
United Airlines Logo
5:07 am - 12:35 pm
SEA
-
CPR
6h 28m
1 stop
$384United Airlines
Booking Insights

KAYAK's insights & trends for Casper to Washington flights

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

How much is a round-trip flight from Casper to State of Washington?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Casper to Washington, 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 Casper to Washington is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are November and August, when the average cost of round-trip tickets is $536 and $448 respectively.

Good to know

Low seasonMay
Cheapest flight$263
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Casper to Spokane

FAQs - booking Washington flights

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

    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 Casper to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Casper to Washington 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 Casper to Washington?

    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 from Casper to Washington with an airline and back with another airline.

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

    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 from Casper to Washington 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 Casper to Washington

 
See real verified KAYAK customer reviews for airlines flying from Casper to Washington. 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 Casper to Washington? 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 9810 reviews
6.6Food
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
Airline reviews

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

10.0 ExcellentClaudia, Jun 2026
SAN - SFO
Read more United Airlines reviews

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

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!

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

Information on your arrival and departure airports