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Cheap flights from Champaign to San Antonio from $342

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Champaign to San Antonio departing on 7/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Champaign to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:34 pm - 11:59 pm
CMI
-
SAT
5h 25m
1 stop
American Airlines Logo
1:32 pm - 9:02 pm
SAT
-
CMI
7h 30m
1 stop
$342American Airlines
Sat, Jul 18 - Wed, Jul 22
American Airlines Logo
2:47 pm - 10:00 pm
CMI
-
SAT
7h 13m
1 stop
American Airlines Logo
1:33 pm - 8:28 pm
SAT
-
CMI
6h 55m
1 stop
$345American Airlines
Fri, Aug 21 - Sat, Aug 22
United Airlines Logo
6:30 am - 11:47 am
CMI
-
SAT
5h 17m
1 stop
United Airlines Logo
6:43 am - 12:50 pm
SAT
-
CMI
6h 07m
1 stop
$350United Airlines
Sat, Nov 14 - Tue, Nov 17
American Airlines Logo
6:00 am - 12:53 pm
CMI
-
SAT
6h 53m
1 stop
American Airlines Logo
10:59 am - 8:28 pm
SAT
-
CMI
9h 29m
2 stops
$351American Airlines
Fri, Aug 21 - Sat, Aug 22
United Airlines Logo
6:30 am - 11:47 am
CMI
-
SAT
5h 17m
1 stop
United Airlines Logo
5:30 am - 12:50 pm
SAT
-
CMI
7h 20m
2 stops
$356United Airlines
Sat, Nov 14 - Tue, Nov 17
United Airlines Logo
8:00 am - 3:42 pm
CMI
-
SAT
7h 42m
2 stops
United Airlines Logo
5:30 am - 12:50 pm
SAT
-
CMI
7h 20m
2 stops
$361United Airlines
Sat, Nov 14 - Tue, Nov 17
American Airlines Logo
6:34 pm - 11:59 pm
CMI
-
SAT
5h 25m
1 stop
American Airlines Logo
9:55 am - 6:06 pm
SAT
-
CMI
8h 11m
2 stops
$365American Airlines
Sat, Jul 18 - Wed, Jul 22
United Airlines Logo
6:30 am - 11:47 am
CMI
-
SAT
5h 17m
1 stop
United Airlines Logo
6:43 am - 12:50 pm
SAT
-
CMI
6h 07m
1 stop
$369United Airlines
Sat, Nov 14 - Tue, Nov 17
American Airlines Logo
6:28 pm - 12:10 am
CMI
-
SAT
5h 42m
1 stop
American Airlines Logo
1:33 pm - 8:28 pm
SAT
-
CMI
6h 55m
1 stop
$420American Airlines
Fri, Jul 31 - Fri, Aug 7
American Airlines Logo
6:28 pm - 12:10 am
CMI
-
SAT
5h 42m
1 stop
American Airlines Logo
12:40 pm - 8:28 pm
SAT
-
CMI
7h 48m
2 stops
$426American Airlines
Fri, Jul 31 - Fri, Aug 7

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American Airlines flights from Champaign to San Antonio

Our best American Airlines deals on Champaign to San Antonio flight tickets
American Airlines
Jul 18
CMI6:34 pmChampaign University-Willard
5h 25m
1 stop
SAT11:59 pmSan Antonio
Jul 22
SAT1:32 pmSan Antonio
7h 30m
1 stop
CMI9:02 pmChampaign University-Willard
$342
American Airlines
Aug 21
CMI2:47 pmChampaign University-Willard
7h 13m
1 stop
SAT10:00 pmSan Antonio
Aug 22
SAT1:33 pmSan Antonio
6h 55m
1 stop
CMI8:28 pmChampaign University-Willard
$345
American Airlines
Aug 21
CMI6:00 amChampaign University-Willard
6h 53m
1 stop
SAT12:53 pmSan Antonio
Aug 22
SAT10:59 amSan Antonio
9h 29m
2 stops
CMI8:28 pmChampaign University-Willard
$351

United Airlines flights from Champaign to San Antonio

Our best United Airlines deals on Champaign to San Antonio flight tickets
United Airlines
Nov 14
CMI6:30 amChampaign University-Willard
5h 17m
1 stop
SAT11:47 amSan Antonio
Nov 17
SAT6:43 amSan Antonio
6h 07m
1 stop
CMI12:50 pmChampaign University-Willard
$350
United Airlines
Nov 14
CMI6:30 amChampaign University-Willard
5h 17m
1 stop
SAT11:47 amSan Antonio
Nov 17
SAT5:30 amSan Antonio
7h 20m
2 stops
CMI12:50 pmChampaign University-Willard
$356
United Airlines
Nov 14
CMI8:00 amChampaign University-Willard
7h 42m
2 stops
SAT3:42 pmSan Antonio
Nov 17
SAT5:30 amSan Antonio
7h 20m
2 stops
CMI12:50 pmChampaign University-Willard
$361

momondo 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, momondo users made 832,500 searches. Data last updated July 3, 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 7/18

6:34 pm-11:59 pm

1 stop5h 25m

San Antonio

Wed 7/22

1:32 pm-9:02 pm

1 stop7h 30m

$342

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Fri 8/21

2:47 pm-10:00 pm

1 stop7h 13m

San Antonio

Sat 8/22

1:33 pm-8:28 pm

1 stop6h 55m

$345
Quickest round-trip

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Sat 11/14

6:30 am-11:47 am

1 stop5h 17m

San Antonio

Tue 11/17

6:43 am-12:50 pm

1 stop6h 07m

$350

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Fri 8/21

6:00 am-12:53 pm

1 stop6h 53m

San Antonio

Sat 8/22

10:59 am-8:28 pm

2 stops9h 29m

$351

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Sat 11/14

6:30 am-11:47 am

1 stop5h 17m

San Antonio

Tue 11/17

5:30 am-12:50 pm

2 stops7h 20m

$356

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Sat 11/14

8:00 am-3:42 pm

2 stops7h 42m

San Antonio

Tue 11/17

5:30 am-12:50 pm

2 stops7h 20m

$361

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Sat 7/18

6:34 pm-11:59 pm

1 stop5h 25m

San Antonio

Wed 7/22

9:55 am-6:06 pm

2 stops8h 11m

$365

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Sat 11/14

6:30 am-11:47 am

1 stop5h 17m

San Antonio

Tue 11/17

6:43 am-12:50 pm

1 stop6h 07m

$369

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Fri 7/31

6:28 pm-12:10 am

1 stop5h 42m

San Antonio

Fri 8/7

1:33 pm-8:28 pm

1 stop6h 55m

$420

ChampaignSan Antonio

CMI - SAT

CMISAT

Champaign University-Willard

Fri 7/31

6:28 pm-12:10 am

1 stop5h 42m

San Antonio

Fri 8/7

12:40 pm-8:28 pm

2 stops7h 48m

$426

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Antonio from

How to get the cheapest flight ticket from Champaign to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to San Antonio?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Antonio from Champaign according to our data. American Airlines is the first choice among our users, with 81% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 3 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

When to book flights from Champaign to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Champaign to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Champaign to San Antonio (CMI to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Champaign to San Antonio

Fastest flight time

5h 17m

Direct flights

None
The fastest flight from Champaign to San Antonio takes 5h 17m
There are no direct flights from Champaign to San Antonio. There are no popular flight routes from Champaign to San Antonio.
Search flight deals

Frequently asked questions about flying from Champaign to San Antonio

  • How far is Champaign University-Willard to San Antonio by plane?

    There are 942.6 mi between Champaign University-Willard and San Antonio. A reasonable flight in good conditions will take 5h 17m.

  • When did momondo last update prices for flights from Champaign University-Willard Airport to San Antonio Airport?

    Prices for flights from Champaign University-Willard Airport to San Antonio Airport were last updated today.

  • How old do you have to be to fly from Champaign University-Willard Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Champaign University-Willard Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near San Antonio?

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

Why use momondo?

Why should I use momondo to find a flight deal from Champaign to San Antonio?

Finding the right flight to San Antonio from Champaign is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

Can I find flights from Champaign to San Antonio with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Antonio from Champaign which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Champaign to San Antonio?

momondo helps you find the best flight between Champaign and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Champaign to San Antonio right now. Can momondo alert me if prices change?

Price alerts on flights to San Antonio from Champaign are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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