$298 Cheap Flights from San Antonio (SAT) to Casper (CPR)

View $298 flight on Sun, Aug 23, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from San Antonio to Casper (SAT-CPR)

Prices were available within the past 7 days and start at $298 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jul 25 - Sat, Aug 8
SAT
San Antonio
CPR
Casper
$308 Roundtrip, found 5 hours ago
$308
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Jul 25 from San Antonio to Casper, returning Sat, Aug 8, priced at $308 found 5 hours ago
United
Wed, Aug 12 - Mon, Aug 17
SAT
San Antonio
CPR
Casper
$314 Roundtrip, found 2 days ago
$314
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 12 from San Antonio to Casper, returning Mon, Aug 17, priced at $314 found 2 days ago
United
Tue, Jul 7 - Wed, Jul 22
SAT
San Antonio
CPR
Casper
$335 Roundtrip, found 5 hours ago
$335
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Jul 7 from San Antonio to Casper, returning Wed, Jul 22, priced at $335 found 5 hours ago
United
Sat, Jul 25 - Sat, Aug 8
SAT
San Antonio
CPR
Casper
$336 Roundtrip, found 5 hours ago
$336
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Jul 25 from San Antonio to Casper, returning Sat, Aug 8, priced at $336 found 5 hours ago
United
Sat, Aug 8 - Tue, Aug 11
SAT
San Antonio
CPR
Casper
$349 Roundtrip, found 6 days ago
$349
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 8 from San Antonio to Casper, returning Tue, Aug 11, priced at $349 found 6 days ago
United
Sat, Aug 8 - Tue, Aug 11
SAT
San Antonio
CPR
Casper
$355 Roundtrip, found 6 days ago
$355
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 8 from San Antonio to Casper, returning Tue, Aug 11, priced at $355 found 6 days ago
United
Wed, Jul 8 - Wed, Jul 15
SAT
San Antonio
CPR
Casper
$357 Roundtrip, found 4 days ago
$357
Roundtrip
found 4 days ago
Select United flight, departing Wed, Jul 8 from San Antonio to Casper, returning Wed, Jul 15, priced at $357 found 4 days ago
United
Wed, Jul 8 - Wed, Jul 15
SAT
San Antonio
CPR
Casper
$364 Roundtrip, found 4 days ago
$364
Roundtrip
found 4 days ago
Select United flight, departing Wed, Jul 8 from San Antonio to Casper, returning Wed, Jul 15, priced at $364 found 4 days ago
United
Tue, Sep 22 - Tue, Sep 29
SAT
San Antonio
CPR
Casper
$365 Roundtrip, found 6 days ago
$365
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 22 from San Antonio to Casper, returning Tue, Sep 29, priced at $365 found 6 days ago
United
Wed, Jul 15 - Wed, Jul 29
SAT
San Antonio
CPR
Casper
$374 Roundtrip, found 1 hour ago
$374
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Jul 15 from San Antonio to Casper, returning Wed, Jul 29, priced at $374 found 1 hour ago

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

San Antonio (SAT) to Casper (CPR) at a glance

Travel from San Antonio (SAT) to Casper (CPR) with a full-service airline on this convenient domestic short-haul route. Discover the itinerary that aligns with your travel plans as you dive into the attractions and neighborhoods of Casper. Here, you’ll find essential information about flights from San Antonio International Airport to Natrona County International Airport, helping you to plan your journey effectively.

  • Fastest flight duration: around 3h 30m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 1,000 miles (1,610 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $140–$485, depending on seasonality and how far ahead you book

Flights from San Antonio International Airport (SAT) to Natrona County International Airport (CPR)

According to recent traveler bookings, here are the top airlines favored for one-stop flights from San Antonio to Casper, typically featuring a popular layover at Denver International Airport (DEN), which lasts approximately 1 hour and 15 minutes. This allows you the flexibility to explore various combinations of price, total travel time, and cabin class, helping you to craft the ideal itinerary for your journey.

  • United: This comprehensive airline serves as a full-service option, providing one-stop journeys. One-way ticket prices generally fall between $140 and $485. United handles nearly all departures for this route, with an in-flight duration of 3 hours and 30 minutes, leading to an overall travel time of about 5 hours, including layover time.

Alternative route from San Antonio (SAT) to Casper (CPR)

  • Austin to Casper (AUS-CPR): Located approximately 67 miles from San Antonio International Airport (SAT), Austin-Bergstrom International Airport (AUS) serves as a key departure point for this route. Economy one-way tickets usually fall within the range of $130 to $485, influenced by the time of year and how far in advance you book. Most travelers will find one-stop flights available, with Denver International Airport (DEN) being a common layover. United Airlines is the leading carrier for this route.

How to find the best prices for flights from San Antonio (SAT) to Casper (CPR)

Getting some of the best deals on flights from San Antonio 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 2-8 weeks in advance, which is also when most travelers make their reservations. Morning departures (5am-12pm) often provide lower prices, while Afternoon flights (12pm-6pm) are more popular. Additionally, flying on Monday typically yields cheaper rates, although Friday remains the busiest travel day.
  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 San Antonio International Airport

Casper welcomes travelers from San Antonio 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 conveniently located about 0.4 miles away and easily reached by car.

Frequently asked questions

How much does a flight from San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.) cost?
You can find cheap one-way flights from $298 and cheap return flights from $308 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.) with Expedia. One-way flights usually range from $305 to $1008, and return flights typically cost between $422 and $2249. 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 San Antonio, TX (SAT-San Antonio 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
The cheapest month to fly from SAT to CPR is July 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
Enter SAT to CPR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
United is one of the cheapest airlines offering connecting flights from San Antonio, TX (SAT) to Casper, WY (CPR) with return tickets starting from around $263, with a layover in George Bush Intercontinental (IAH). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
To find a cheap flight from San Antonio, TX (SAT-San Antonio 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 San Antonio, TX (SAT-San Antonio 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
The earliest flight from San Antonio International Airport (SAT) to Natrona County International Airport (CPR) typically departs at around 5:15 AM, operated by United Airlines. This is a seasonal service active in June and July, allowing you to start your day early and maximize your time in Casper. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
The most popular departure times for flights from San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.) are in the early morning, from 6am to 9am. About 48% of passengers prefer this time window. Many major carriers, including Delta Air Lines, United Airlines, and American Airlines, offer flights during this window. This timing is favored because it allows you to maximize your day upon arrival in Casper.
How long does it take to fly from San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
Flying from SAT to CPR with a connection usually takes about 6 hours 30 minutes, traveling roughly 1,024 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
First class seats are offered on the SAT to CPR route with United Airlines.
How do I earn miles on a San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.) flight with Expedia?
It's easy to earn miles on a San Antonio, TX (SAT-San Antonio 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 San Antonio Intl. (SAT)?
From San Antonio Intl. (SAT), you can fly into Natrona County Intl. (CPR) to reach Casper. Some flights may connect through major hubs like Los Angeles Intl. (LAX), Salt Lake City Intl. (SLC), Minneapolis - St. Paul Intl. (MSP) 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.) at the last minute?
Typically, booking a last minute flight from San Antonio, TX (SAT-San Antonio 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.) flight and hotel package?
Securing a San Antonio, TX (SAT-San Antonio 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 San Antonio, TX (SAT-San Antonio Intl.) to Casper, WY (CPR-Natrona County Intl.)?
If you booked your San Antonio, TX (SAT-San Antonio 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
San Antonio Intl.
Destination airport
Natrona County Intl.
Airlines serving
United
Roundtrip price
$308
Distance
1024 mi

Book with confidence

San Antonio to Casper Flights

The cheapest times to fly from San Antonio 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 San Antonio to Casper are during the month of July. You can find some of the cheapest flights from San Antonio to Casper with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Casper

Sunday is one of the best days to book for cheap flights from San Antonio 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 San Antonio 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 San Antonio to Casper in 2026. You can also book with separate airlines for your outbound and return journeys, from $298 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 San Antonio 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 San Antonio 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.

 

San Antonio to Casper Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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