SAT - CMI

$270 Find Cheap Flights from San Antonio to Champaign - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Champaign departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$270
American Airlines
Sat 8/15Sat 8/22
SAT - CMI • 1 stop
Nonstop flights
Not available
There are currently no direct flights between San Antonio and Champaign. You'll need at least 1 connection.
Insights
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Top layover airports
Chicago (ORD)
Cheapest • Avg $408 (round-trip)
Dallas (DFW)
Shortest trip • 4h 08m (one-way)
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Flight Deals

Cheap Flights from San Antonio to Champaign (SAT-CMI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Champaign that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Champaign

Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
1:33 pm - 8:28 pm
SAT
-
CMI
6h 55m
1 stop
American Airlines Logo
6:00 am - 12:53 pm
CMI
-
SAT
6h 53m
1 stop
$270American Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
10:59 am - 8:28 pm
SAT
-
CMI
9h 29m
2 stops
American Airlines Logo
6:00 am - 12:53 pm
CMI
-
SAT
6h 53m
1 stop
$276American Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
12:36 pm - 8:28 pm
SAT
-
CMI
7h 52m
2 stops
American Airlines Logo
6:00 am - 3:48 pm
CMI
-
SAT
9h 48m
2 stops
$317American Airlines
Fri, Aug 14 - Sun, Aug 16
American Airlines Logo
1:33 pm - 8:28 pm
SAT
-
CMI
6h 55m
1 stop
American Airlines Logo
4:52 pm - 12:48 am
CMI
-
SAT
7h 56m
1 stop
$420American Airlines
Fri, Jul 31 - Tue, Aug 4
American Airlines Logo
1:32 pm - 9:02 pm
SAT
-
CMI
7h 30m
1 stop
American Airlines Logo
6:36 pm - 12:10 am
CMI
-
SAT
5h 34m
1 stop
$436American Airlines
Fri, Jul 31 - Tue, Aug 4
American Airlines Logo
9:55 am - 5:58 pm
SAT
-
CMI
8h 03m
2 stops
American Airlines Logo
6:36 pm - 12:10 am
CMI
-
SAT
5h 34m
1 stop
$514American Airlines
Thu, Oct 8 - Sun, Oct 11
American Airlines Logo
3:09 pm - 8:25 pm
SAT
-
CMI
5h 16m
1 stop
American Airlines Logo
6:48 pm - 11:58 pm
CMI
-
SAT
5h 10m
1 stop
$548American Airlines
Thu, Oct 8 - Sun, Oct 11
American Airlines Logo
3:09 pm - 8:25 pm
SAT
-
CMI
5h 16m
1 stop
American Airlines Logo
6:48 pm - 11:58 pm
CMI
-
SAT
5h 10m
1 stop
$553American Airlines
Fri, Aug 14 - Sun, Aug 16
American Airlines Logo
10:59 am - 8:28 pm
SAT
-
CMI
9h 29m
2 stops
American Airlines Logo
2:47 pm - 8:57 pm
CMI
-
SAT
6h 10m
1 stop
$580American Airlines
Thu, Oct 8 - Sun, Oct 11
American Airlines Logo
11:51 am - 8:25 pm
SAT
-
CMI
8h 34m
2 stops
American Airlines Logo
6:48 pm - 11:58 pm
CMI
-
SAT
5h 10m
1 stop
$758American Airlines
Booking Insights

KAYAK's insights & trends for San Antonio to Champaign flights

Get data-powered insights and trends into flights from San Antonio to Champaign to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from San Antonio to Champaign?

Percentage of 1-stop round-trip flights from San Antonio to Champaign chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 67% of KAYAK users who clicked on 1-stop flights from San Antonio to Champaign picked an itinerary connecting there.

What is the cheapest layover airport when flying from San Antonio to Champaign?

Average round-trip price for 1-stop flights from San Antonio to Champaign clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Chicago (ORD) offer the most affordable fares, with an average round-trip price of $408.

Which layover airport offers the shortest total travel time from San Antonio to Champaign?

Shortest average total travel time for 1-stop one-way flights from San Antonio to Champaign via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Dallas (DFW) for the shortest journey. The average one-way travel time for flights connecting there is 4h 08m.

Which layover airport has the quickest connection when flying from San Antonio to Champaign?

Average layover duration at different layover airports for 1-stop one-way flights from San Antonio to Champaign, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Dallas (DFW) often has the shortest layovers from San Antonio to Champaign, with an average of 0h 45m.

Find deals

Good to know

Cheapest flight

$270
Flight from San Antonio to Champaign

When to book flights from San Antonio to Champaign

Are your dates flexible? Find out the best times to travel from San Antonio to Champaign based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Antonio to Champaign

  • What is the cheapest flight from San Antonio to Champaign?

    In the last 5 days, the lowest price for a flight from San Antonio to Champaign was $270 for a round-trip ticket.

  • Do I need a passport to fly between San Antonio and Champaign?

    No, a passport isn't needed to fly from San Antonio to Champaign. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from San Antonio to Champaign?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Antonio to Champaign?

    oneworld is the only airline alliance operating flights between San Antonio and Champaign.

  • How does KAYAK find such low prices on flights from San Antonio to Champaign?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Champaign.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Champaign?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Champaign from San Antonio is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Champaign?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Champaign with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and CMI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Champaign?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Champaign from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Antonio to Champaign

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Champaign. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Antonio to Champaign? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11818 reviews
7.2Comfort
7.9Crew
6.4Food
6.8Entertainment
7.5Boarding
Airline reviews

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

2.0 MediocreSanta, Jul 2026
AUS - ORD
Read more American Airlines reviews

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

Boarding was quick and efficient. We arrived at our destination early.

Everything was on time, we arrived early, everything worked well.

Deplaning time. Having to wait 10 to 25 minutes after boarding to leave the gate. Having to wait 10 minutes to park at the gate to deplane.☹️

When you pay for Premium Economy on an 787 and you’re promised amenities for the extra money, you expect them to work. They didn’t. USB connector wouldn’t charge continuously. 120v outlet wouldn’t hold anything you plugged into it. The adapter would just fall out. The noise canceling headphones stopped noise cancelling in the first 15 minutes for EVERYONE. No one on the plane knew how to fix it so I couldn’t listen to any movies. I just put in my AirPods and went to sleep. Very unhappy with the crappy Panasonic entertainment system. I won’t buy premium again.

Excellent pilots in an extremely foggy situation. Very good communication with the passengers about possibly being diverted to another airport.

Deicing in Denver took forever and I almost missed my connection. De-ice faster! Not Americans fault.

My first time flying American Airlines, my first flight to CLT was wonderful and flight attendants was nice and had great customer service. My second flight from CLT to NY was very delayed due to whatever reason the crew was not greeting other than that I’m rate 8 .

The boarding process went very quickly, faster than I’ve ever seen boarding occur. I understand the need for efficiency, but the groups were called so quickly that there was a lot of chaos at the gate and people running through the airport. Then we all sat on the plane for a while, which seemed silly.

Everything you need to know for your flight from San Antonio to Champaign

Information on your arrival and departure airports

San Antonio (SAT)
Champaign (CMI)