$263 Cheap Flights from Spokane (GEG) to Casper (CPR)

View $263 flight on Tue, Jul 28, 2026Opens in a new window

Popular airlines from Spokane International Airport (GEG) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from Spokane to Casper (GEG-CPR)

Prices were available within the past 7 days and start at $263 for one-way flights and $298 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 3 - Sun, Sep 6
GEG
Spokane
CPR
Casper
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 3 from Spokane to Casper, returning Sun, Sep 6, priced at $298 found 1 day ago
United
Fri, Jul 10 - Sat, Jul 11
GEG
Spokane
CPR
Casper
$324 Roundtrip, found 4 days ago
$324
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jul 10 from Spokane to Casper, returning Sat, Jul 11, priced at $324 found 4 days ago
United
Thu, Sep 3 - Sun, Sep 6
GEG
Spokane
CPR
Casper
$327 Roundtrip, found 1 day ago
$327
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 3 from Spokane to Casper, returning Sun, Sep 6, priced at $327 found 1 day ago
United
Fri, Sep 4 - Mon, Sep 7
GEG
Spokane
CPR
Casper
$342 Roundtrip, found 2 days ago
$342
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 4 from Spokane to Casper, returning Mon, Sep 7, priced at $342 found 2 days ago
United
Thu, Sep 3 - Sun, Sep 6
GEG
Spokane
CPR
Casper
$356 Roundtrip, found 1 day ago
$356
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 3 from Spokane to Casper, returning Sun, Sep 6, priced at $356 found 1 day ago
United
Tue, Jun 23 - Tue, Jun 30
GEG
Spokane
CPR
Casper
$365 Roundtrip, found 4 days ago
$365
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 23 from Spokane to Casper, returning Tue, Jun 30, priced at $365 found 4 days ago
United
Wed, Jul 1 - Tue, Jul 7
GEG
Spokane
CPR
Casper
$367 Roundtrip, found 16 hours ago
$367
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Jul 1 from Spokane to Casper, returning Tue, Jul 7, priced at $367 found 16 hours ago
United
Wed, Jul 1 - Tue, Jul 7
GEG
Spokane
CPR
Casper
$370 Roundtrip, found 16 hours ago
$370
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Jul 1 from Spokane to Casper, returning Tue, Jul 7, priced at $370 found 16 hours ago
United
Fri, Sep 4 - Mon, Sep 7
GEG
Spokane
CPR
Casper
$371 Roundtrip, found 2 days ago
$371
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 4 from Spokane to Casper, returning Mon, Sep 7, priced at $371 found 2 days ago
United
Wed, Jul 1 - Tue, Jul 7
GEG
Spokane
CPR
Casper
$376 Roundtrip, found 16 hours ago
$376
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Jul 1 from Spokane to Casper, returning Tue, Jul 7, priced at $376 found 16 hours ago

What you need to know for your flight from Spokane Intl. to Natrona County Intl.

Spokane (GEG) to Casper (CPR) at a glance

Embark on your journey from Spokane International Airport (GEG) to Natrona County International Airport (CPR) on a full-service carrier, exploring the sights and neighborhoods of Casper along the way. Find the travel itinerary that aligns with your schedule as you discover the best options for Spokane to Casper flights, including details on flight times and availability that suit your travel plans.

  • Fastest flight duration: around 3h 30m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 600 miles (970 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $120–$460, depending on seasonality and how far ahead you book

Flights from Spokane International Airport (GEG) to Natrona County International Airport (CPR)

Based on recent traveler bookings, these are the top airlines flying from Spokane to Casper, favored for their one-stop services. Many travelers opt for routes with a layover at Denver International Airport (DEN), which lasts approximately 1 hour and 15 minutes. This flexibility allows you to balance price, total travel time, and cabin class to create the ideal itinerary.

  • United: This comprehensive airline provides one-stop flights, dominating the departures on this route. One-way ticket prices usually vary between $120 and $460. Passengers can expect an in-flight duration of approximately 3 hours and 30 minutes, leading to a total travel time of about 5 hours when factoring in the layover.

How to find the best prices for flights from Spokane (GEG) to Casper (CPR)

Getting some of the best deals on flights from Spokane to Casper is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking 2 to 8 weeks in advance, although most travelers tend to book within 2 weeks. Afternoon departures from 12 PM to 6 PM often provide lower prices, while morning flights from 5 AM to 12 PM are the most popular. Additionally, flying on Wednesdays typically yields cheaper rates, even though Fridays are the busiest travel days.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Casper hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Natrona County International Airport from Spokane International Airport

Casper welcomes travelers from Spokane with a range of transport options based on price, convenience, and proximity. Here's how to reach Casper efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Casper, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Natrona County International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Natrona County International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Natrona County International Airport, Casper Seaport, a seaport, is located about 0.4 miles away by car.

Frequently asked questions

How much does a flight from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) cost?
You can find cheap one-way flights from $263 and cheap return flights from $298 Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) with Expedia. One-way flights generally range between $233 and $1009, and roundtrip flights usually range from $382 to $1623. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
The cheapest month to fly from GEG to CPR is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
Enter GEG to CPR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
To find a cheap flight from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
The earliest flight from Spokane Intl. to Casper (Natrona County Intl.) typically leaves at around 5:00 AM, operated by Alaska Airlines and United. This seasonal service is available in April and May, allowing you to maximize your time in Wyoming. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
Flights from GEG to CPR with one stop typically take around 5 hours, covering approximately 629 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
First class seats are offered on the GEG to CPR route with United Airlines.
How do I earn miles on a Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) flight with Expedia?
It's easy to earn miles on a Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Casper from Spokane Intl. (GEG)?
From Spokane Intl. (GEG), you can fly into Natrona County Intl. (CPR) to reach Casper. Some flights may connect through major hubs like Salt Lake City Intl. (SLC), Seattle - Tacoma Intl. (SEA), Los Angeles Intl. (LAX) before reaching Casper. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) at the last minute?
Typically, booking a last minute flight from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) flight and hotel package?
Securing a Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.)?
If you booked your Spokane, WA (GEG-Spokane Intl.) to Casper, WY (CPR-Natrona County Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Spokane Intl.
Destination airport
Natrona County Intl.
Airlines serving
United
Roundtrip price
$298
Distance
628 mi

Book with confidence

Spokane to Casper Flights

The cheapest times to fly from Spokane to Casper

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Spokane to Casper are during the month of September. You can find some of the cheapest flights from Spokane to Casper with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Spokane to Casper

Sunday is one of the best days to book for cheap flights from Spokane to Casper: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Spokane to Casper

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Spokane to Casper in 2026. You can also book with separate airlines for your outbound and return journeys, from $263 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Spokane to Casper flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Spokane to Casper airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Spokane to Casper Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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