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$276+ Cheap flights from Champaign to San Antonio (CMI - 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SAT
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from Champaign to San Antonio

Cheapest flights from Champaign to San Antonio
Explore the most affordable flight options available from Champaign to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This American Airlines deal was found by Cheapflights users on 7/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:48 pm
CMI
-
SAT
1 stop5h 10m
American Airlines
Tue 10/205:00 am
SAT
-
CMI
2 stops6h 43m
American Airlines
Deal found 7/21$276
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sat 11/146:30 am
CMI
-
SAT
1 stop5h 17m
United Airlines
Tue 11/175:22 pm
SAT
-
CMI
1 stop5h 00m
United Airlines
Deal found 7/20$350
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:47 pm
CMI
-
SAT
1 stop6h 10m
American Airlines
Wed 8/121:33 pm
SAT
-
CMI
1 stop6h 55m
American Airlines
Deal found 7/24$352
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:41 pm
CMI
-
SAT
1 stop5h 14m
American Airlines
Wed 10/79:20 am
SAT
-
CMI
1 stop4h 47m
American Airlines
Deal found 7/24$355
This American Airlines deal was found by Cheapflights users on 7/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/182:47 pm
CMI
-
SAT
1 stop6h 10m
American Airlines
Mon 8/248:00 am
SAT
-
CMI
1 stop6h 15m
American Airlines
Deal found 7/20$381

Find flight deals from Champaign to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$276
(American Airlines)
Provider with most accurate pricing for Champaign University-Willard-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Champaign University-Willard-San Antonio flights.
Search Deals
From Champaign University-Willard to San Antonio
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Champaign 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 July 25, 2026.
Use the filters below to find and compare flights from Champaign to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Sat 8/8

2:47 pm-8:57 pm

1 stop6h 10m

San Antonio

Wed 8/12

1:33 pm-8:28 pm

1 stop6h 55m

$352
Quickest round-trip

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Fri 10/2

2:41 pm-9:06 pm

1 stop6h 25m

San Antonio

Wed 10/7

5:43 pm-10:03 pm

1 stop4h 20m

$381

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Tue 8/18

2:47 pm-8:57 pm

1 stop6h 10m

San Antonio

Mon 8/24

8:00 am-2:15 pm

1 stop6h 15m

$381

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Thu 10/1

1:23 pm-9:06 pm

2 stops7h 43m

San Antonio

Wed 10/7

9:20 am-2:07 pm

1 stop4h 47m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Sorted by cheapest first

Compare providers for flights from Champaign 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 Champaign to San Antonio in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Champaign-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Champaign-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Champaign-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Champaign-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 Champaign-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 Champaign to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Champaign 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.

Related info for your journey

Find useful and relevant information for your journey from Champaign 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 Champaign to San Antonio?

    American Airlines can get you from Champaign to San Antonio in just under 6h 10m. Your travel time can differ by up to . Champaign and San Antonio are separated by a distance of 926 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Champaign 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.

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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