HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$248+ Cheap flights from Casper to San Antonio (CPR - SAT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — SAT
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Casper to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Casper to San Antonio

Cheapest flights from Casper to San Antonio
Explore the most affordable flight options available from Casper to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/213:18 pmCPR - SAT
1 stop6h 09mUnited Airlines
Mon 11/244:30 pmSAT - CPR
1 stop4h 47mUnited Airlines
Deal found 10/26$248
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:17 pmCPR - SAT
1 stop4h 36mUnited Airlines
Sun 12/75:20 amSAT - CPR
2 stops6h 26mUnited Airlines
Deal found 10/26$254
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:30 amCPR - SAT
1 stop6h 26mUnited Airlines
Mon 11/174:30 pmSAT - CPR
1 stop6h 28mUnited Airlines
Deal found 10/26$282
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/281:25 pmCPR - SAT
1 stop8h 02mUnited Airlines
Sun 11/304:40 pmSAT - CPR
1 stop9h 28mUnited Airlines
Deal found 10/26$488

Cheap flight deals from Casper to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Casper (CPR) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$248
(United Airlines)

Popular in

June

Cheapest in

September
Provider with most accurate pricing for Casper Natrona County-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Casper Natrona County-San Antonio flights.
Search Deals
From Casper Natrona County to San Antonio
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Casper to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Casper to San Antonio that are best for you.

Fly from

Casper

Fly to

San Antonio

Route

Depart

Return

Price

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 11/21

3:18 pm-10:27 pm

1 stop6h 09m

San Antonio

Mon 11/24

4:30 pm-8:17 pm

1 stop4h 47m

$248

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 12/5

3:17 pm-8:53 pm

1 stop4h 36m

San Antonio

Sun 12/7

5:20 am-10:46 am

2 stops6h 26m

$254

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 11/14

5:30 am-12:56 pm

1 stop6h 26m

San Antonio

Mon 11/17

4:30 pm-9:58 pm

1 stop6h 28m

$282

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Sat 2/28

3:15 pm-8:56 pm

1 stop4h 41m

San Antonio

Tue 3/3

1:18 pm-7:02 pm

1 stop6h 44m

$328

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 1/16

9:00 am-4:53 pm

1 stop6h 53m

San Antonio

Mon 1/19

4:43 pm-10:14 pm

1 stop6h 31m

$328

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 11/26

3:18 pm-10:27 pm

1 stop6h 09m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from Casper to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Casper to San Antonio in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Casper-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Casper-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Casper-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Casper-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Casper-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Casper to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Casper with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Casper to San Antonio

What is the cheapest month to book a flight from Casper to San Antonio?

Currently, February is the cheapest month in which you can book a flight from Casper to San Antonio (average of $271). Flying from Casper to San Antonio in October is currently the most expensive (average of $637). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated October 28, 2025.
See what other customers who have flown with United Airlines from Casper to San Antonio have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Casper to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Casper to San Antonio?

    United Airlines can get you from Casper to San Antonio in just under 6h 09m. Your travel time can differ by up to . There are 1024 mi between Casper and San Antonio.

  • What is the cheapest airline to fly from Casper to San Antonio round-trip?

    Cheapflights users have booked flights from Casper to San Antonio round-trip from $300. Users have found that United Airlines is 33% cheaper than the other options available to this destination.

  • Can I find deals for flights from Casper to San Antonio that include hotel bookings?

    Yes. In addition to deals on Casper to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Casper to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Casper to San Antonio.

  • Can I find deals for business class flights from Casper to San Antonio?

    Yes. Cheapflights offers flight deals from Casper to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Casper to San Antonio?

    Currently, February is the cheapest month in which you can book a flight from Casper to San Antonio (average of $271). Flying from Casper to San Antonio in October is currently the most expensive (average of $637). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Casper to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Salt Lake City to Dallas/Fort Worth flights
Denver to Dallas/Fort Worth flights
Denver to Hobby flights
Denver to Austin flights
Denver to George Bush Intcntl flights
Salt Lake City to Hobby flights
Salt Lake City to George Bush Intcntl flights
Denver to San Antonio flights
Salt Lake City to Love Field flights
Denver to Love Field flights
Salt Lake City to Austin flights
Salt Lake City to San Antonio flights
Denver to El Paso flights
Salt Lake City to Lubbock flights
Denver to McAllen flights
Salt Lake City to El Paso flights
Denver to Corpus Christi flights
Denver to Lubbock flights
Denver to Brownsville flights
Denver to Harlingen flights
Denver to Midland flights
Jackson to Hobby flights
Salt Lake City to Corpus Christi flights
Denver to Amarillo flights
Jackson to Austin flights
Jackson to George Bush Intcntl flights
Jackson to Dallas/Fort Worth flights
Casper to Dallas/Fort Worth flights
Casper to Hobby flights
Jackson to San Antonio flights
Denver to Tyler flights
Salt Lake City to McAllen flights
Casper to Austin flights
Salt Lake City to Midland flights
Salt Lake City to Waco flights
Salt Lake City to Brownsville flights
Jackson to Love Field flights
Denver to Waco flights
Salt Lake City to Abilene flights
Denver to Carlsbad flights
Salt Lake City to Tyler flights
Salt Lake City to Killeen flights
Jackson to El Paso flights
Salt Lake City to College Station flights
Laramie to Austin flights
Denver to Wichita Falls flights
Denver to College Station flights
Denver to Abilene flights

Top airline flying from Casper to San Antonio

Discover the top airline that operate flights from Casper to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$432FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.