$338+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — SAT
Oct 14 — Oct 211
Round-trip
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.Cheap flight deals from Casper to San Antonio
Cheapest
Best
Last-minute
Cheapest flights from Casper to San AntonioExplore 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 September 14, 2026.
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 September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/203:11 pm -
1 stop4h 31m
Tue 10/271:52 pm -
1 stop6h 01m
Deal found 9/13![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/86:00 pm -
1 stop4h 58m
Mon 10/125:30 am -
1 stop6h 18m
Deal found 9/11![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 9/286:00 pm -
1 stop4h 58m
Thu 10/85:30 am -
1 stop4h 29m
Deal found 9/11![United Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/1510:06 am -
1 stop9h 36m
Sun 10/185:30 am -
1 stop8h 09m
Deal found 9/10![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/141:29 pm -
2 stops8h 22m
Wed 11/181:52 pm -
1 stop6h 01m
Deal found 9/10![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/1510:06 am -
1 stop9h 36m
Mon 10/195:30 am -
1 stop4h 29m
Deal found 9/14![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/13:14 pm -
2 stops6h 44m
Sat 12/51:35 pm -
1 stop6h 17m
Deal found 9/10![United Airlines logo]()
$439
Best flights from Casper to San AntonioDiscover carefully curated flight deals from Casper to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Casper to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/203:11 pm -
1 stop4h 31m
Tue 10/271:52 pm -
1 stop6h 01m
Deal found 9/13![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/86:00 pm -
1 stop4h 58m
Mon 10/125:30 am -
1 stop6h 18m
Deal found 9/11![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/171:20 pm -
2 stops7h 11m
Sun 10/255:30 am -
1 stop6h 19m
Deal found 9/9![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/151:20 pm -
1 stop9h 38m
Mon 10/191:17 pm -
1 stop8h 00m
Deal found 9/11![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 11/141:29 pm -
2 stops8h 22m
Wed 11/181:52 pm -
1 stop6h 01m
Deal found 9/9![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/13. 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 12/15:00 am -
2 stops11h 35m
Sat 12/51:50 pm -
1 stop6h 09m
Deal found 9/13![United Airlines logo]()
$434
Last-minute flights from Casper to San AntonioDiscover last-minute flight deals from Casper to San Antonio. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Casper to San Antonio. Data last updated September 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 9/286:00 pm -
1 stop4h 58m
Thu 10/85:30 am -
1 stop4h 29m
Deal found 9/11![United Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/86:00 pm -
1 stop4h 58m
Mon 10/125:30 am -
1 stop6h 18m
Deal found 9/11![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/96:00 pm -
1 stop4h 58m
Mon 10/125:30 am -
1 stop4h 29m
Deal found 9/14![United Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/1510:06 am -
1 stop9h 36m
Sun 10/185:30 am -
1 stop8h 09m
Deal found 9/10![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/1510:06 am -
1 stop9h 36m
Mon 10/195:30 am -
1 stop4h 29m
Deal found 9/14![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/203:11 pm -
1 stop4h 31m
Tue 10/271:52 pm -
1 stop6h 01m
Deal found 9/13![United Airlines logo]()
$338
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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $338 (United Airlines) |
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 7,457,451 searches. Data last updated September 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
Cheapest round-trip
Quickest round-trip
CasperSan Antonio
CPR Casper Natrona County - SAT San Antonio
CPRSAT
Casper Natrona County
Tue 10/20
3:11 pm-8:42 pm
1 stop4h 31m
San Antonio
Tue 10/27
1:52 pm-6:53 pm
1 stop6h 01m
$338
CasperSan Antonio
CPR Casper Natrona County - SAT San Antonio
CPRSAT
Casper Natrona County
Thu 10/8
6:00 pm-11:58 pm
1 stop4h 58m
San Antonio
Mon 10/12
5:30 am-10:48 am
1 stop6h 18m
$355
CasperSan Antonio
CPR Casper Natrona County - SAT San Antonio
CPRSAT
Casper Natrona County
Sat 10/17
1:20 pm-9:31 pm
2 stops7h 11m
San Antonio
Sun 10/25
5:30 am-10:49 am
1 stop6h 19m
$374
CasperSan Antonio
CPR Casper Natrona County - SAT San Antonio
CPRSAT
Casper Natrona County
Thu 10/15
1:20 pm-11:58 pm
1 stop9h 38m
San Antonio
Mon 10/19
1:17 pm-8:17 pm
1 stop8h 00m
$408
CasperSan Antonio
CPR Casper Natrona County - SAT San Antonio
CPRSAT
Casper Natrona County
Sat 11/14
1:29 pm-10:51 pm
2 stops8h 22m
San Antonio
Wed 11/18
1:52 pm-6:53 pm
1 stop6h 01m
$414
CasperSan Antonio
CPR Casper Natrona County - SAT San Antonio
CPRSAT
Casper Natrona County
Tue 12/1
5:00 am-5:35 pm
2 stops11h 35m
San Antonio
Sat 12/5
1:50 pm-6:59 pm
1 stop6h 09m
$434
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
CPR-SAT
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.
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 September 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.
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Overall
7.4
Crew
8.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Overall
7.4
Crew
8.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew 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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Casper
Popular flights
San Antonio flight routes
Alternative routes for Casper to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Antonio by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Casper to San Antonio by cabin class
Find flights from Casper to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Casper and San Antonio flights
Browse other Casper and San Antonio flight options. Last updated on September 14, 2026.
Other flights from Casper
Browse through other flights departing from Casper. Flights are based on user searches made on Cheapflights and were last updated on September 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 14, 2026.
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 7,457,451 searches. Data last updated September 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$279 | FlexibilityNo cancel fee | On-time69% |