$174+ Cheap flights from Sioux City to San Antonio (SUX - 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — SAT
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from Sioux City 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 Sioux City to San Antonio
Cheapest
Best
Last-minute
One-way
Cheapest flights from Sioux City to San AntonioExplore the most affordable flight options available from Sioux City to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from Sioux City to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 11/106:00 am -
2 stops9h 38m
Wed 11/184:48 pm -
1 stop6h 55m
Deal found 9/20![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/76:58 pm -
1 stop5h 00m
Sun 10/114:50 pm -
1 stop6h 53m
Deal found 9/22![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/256:58 pm -
1 stop5h 00m
Mon 9/284:50 pm -
1 stop6h 53m
Deal found 9/21![United Airlines logo]()
$429
Best flights from Sioux City to San AntonioDiscover carefully curated flight deals from Sioux City to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from Sioux City to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 11/106:00 am -
2 stops9h 38m
Wed 11/184:48 pm -
1 stop6h 55m
Deal found 9/20![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/76:58 pm -
1 stop5h 00m
Sun 10/114:17 pm -
2 stops7h 26m
Deal found 9/22![United Airlines logo]()
$434
Last-minute flights from Sioux City to San AntonioDiscover last-minute flight deals from Sioux City to San Antonio. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux City to San Antonio. Data last updated September 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/256:58 pm -
1 stop5h 00m
Mon 9/284:50 pm -
1 stop6h 53m
Deal found 9/21![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/76:58 pm -
1 stop5h 00m
Sun 10/114:50 pm -
1 stop6h 53m
Deal found 9/22![United Airlines logo]()
$372
One-way flights from Sioux City to San AntonioSearch for one-way flight options from Sioux City to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from Sioux City to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/23. 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 12/105:00 am -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$174
Find flight deals from Sioux City to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) 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 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (United Airlines) |
One-way from | $174 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Sioux City 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 23, 2026.
Use the filters below to find and compare flights from Sioux City to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Sioux CitySan Antonio
SUX Sioux City Sioux Gateway - SAT San Antonio
SUXSAT
Sioux City Sioux Gateway
Thu 12/10
5:00 am-12:20 pm
1 stop7h 20m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
Sioux CitySan Antonio
SUX Sioux City Sioux Gateway - SAT San Antonio
SUXSAT
Sioux City Sioux Gateway
Tue 11/10
6:00 am-3:38 pm
2 stops9h 38m
San Antonio
Wed 11/18
4:48 pm-11:43 pm
1 stop6h 55m
$329
Sioux CitySan Antonio
SUX Sioux City Sioux Gateway - SAT San Antonio
SUXSAT
Sioux City Sioux Gateway
Wed 10/7
6:58 pm-11:58 pm
1 stop5h 00m
San Antonio
Sun 10/11
4:17 pm-11:43 pm
2 stops7h 26m
$434
Sorted by cheapest first
Compare providers for flights from Sioux City 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 Sioux City 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 Sioux City-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux City-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sioux City-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 Sioux City-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 Sioux City to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Sioux City with our price prediction graph.
SUX-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.
Related info for your journey
Find useful and relevant information for your journey from Sioux City 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
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