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$308+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — SAT
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap 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 March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/183:14 pm
CPR
-
SAT
1 stop4h 28m
United Airlines
Sat 4/254:45 pm
SAT
-
CPR
1 stop4h 41m
United Airlines
Deal found 3/11$308
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 5/511:23 am
CPR
-
SAT
1 stop4h 34m
United Airlines
Sat 5/94:39 pm
SAT
-
CPR
1 stop4h 38m
United Airlines
Deal found 3/9$388
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Tue 4/145:25 am
CPR
-
SAT
1 stop6h 35m
United Airlines
Sat 4/181:25 pm
SAT
-
CPR
1 stop4h 44m
United Airlines
Deal found 3/13$408
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 5/133:14 pm
CPR
-
SAT
1 stop4h 35m
United Airlines
Sat 5/169:50 am
SAT
-
CPR
2 stops10h 07m
United Airlines
Deal found 3/11$409
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Thu 3/265:55 pm
CPR
-
SAT
1 stop4h 37m
United Airlines
Mon 3/308:45 am
SAT
-
CPR
1 stop9h 17m
United Airlines
Deal found 3/11$509

Find 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$308
(United Airlines)
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
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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 March 14, 2026.
Use the filters below to find and compare flights from Casper to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Sat 4/18

5:25 am-1:08 pm

2 stops6h 43m

San Antonio

Sat 4/25

8:45 am-12:46 pm

1 stop5h 01m

$314
Quickest round-trip

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Tue 5/5

11:23 am-4:57 pm

1 stop4h 34m

San Antonio

Sat 5/9

4:39 pm-8:17 pm

1 stop4h 38m

$388

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Tue 4/14

5:25 am-1:00 pm

1 stop6h 35m

San Antonio

Sat 4/18

1:25 pm-5:09 pm

1 stop4h 44m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Casper-San Antonio flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $248). 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 March 14, 2026.
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
9,423 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,423 reviews
United Airlines
7.4
Good
9,423 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 43m. 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 $248.

  • 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 $248). 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

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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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$408FlexibilityNo cancel feeOn-time69%

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