Cheap Flights from Chicago (CHI) to San Antonio (SAT)

View AU$309 flight on Tue, 28 Apr 2026Opens in a new window

Popular airlines from Chicago to San Antonio, TX (SAT-San Antonio Intl.)

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Cheap Flights from Chicago (CHI) to San Antonio (SAT)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$542 Return, found 2 days ago
AU$542
Return
found 2 days ago
Select American Airlines flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$542 found 2 days ago
American Airlines
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$557 Return, found 2 days ago
AU$557
Return
found 2 days ago
Select American Airlines flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$557 found 2 days ago
Delta
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$572 Return, found 2 days ago
AU$572
Return
found 2 days ago
Select Delta flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$572 found 2 days ago
American Airlines
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$600 Return, found 2 days ago
AU$600
Return
found 2 days ago
Select American Airlines flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$600 found 2 days ago
Delta
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$609 Return, found 2 days ago
AU$609
Return
found 2 days ago
Select Delta flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$609 found 2 days ago
American Airlines
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$615 Return, found 2 days ago
AU$615
Return
found 2 days ago
Select American Airlines flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$615 found 2 days ago
United
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$618 Return, found 2 days ago
AU$618
Return
found 2 days ago
Select United flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$618 found 2 days ago
American Airlines
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$627 Return, found 2 days ago
AU$627
Return
found 2 days ago
Select American Airlines flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$627 found 2 days ago
Delta
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$633 Return, found 2 days ago
AU$633
Return
found 2 days ago
Select Delta flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$633 found 2 days ago
Alaska Airlines
Thu, 4 Dec - Mon, 8 Dec
ORD
Chicago
SAT
San Antonio
AU$766 Return, found 2 days ago
AU$766
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 4 Dec from Chicago to San Antonio, returning Mon, 8 Dec, priced at AU$766 found 2 days ago

Find the cheapest month to fly from Chicago (CHI) to San Antonio (SAT)

April is typically the cheapest month to fly

From AU$189 - AU$652 per traveller.
Flight from Chicago to San Antonio route information
Origin airport
O'Hare Intl.
Destination airport
San Antonio Intl.
Airlines serving
American Airlines, Delta, United
Return price
AU$542
Distance
1668 km

CHI to SAT Flights

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Our user-friendly tools make it easier than ever to book CHI to SAT flights, even if you’re hoping to hop aboard one of the last-minute flights leaving today. So whether you seek a spontaneous trip to this city’s hottest attractions, or prefer to plan out every detail of your adventure ahead of time, Expedia.com.au is here to help you find exactly what you are interested in.

If you’re on the hunt for cheap flights to San Antonio from Illinois, you need not look any further. We make it simple for you to compare different airline carriers or choose the one that appeals to you most. We work with dozens of airlines in order to offer you incredible deals on business and personal travel. Start by searching through our selection of plane tickets today, and you’ll be in the sky before you know it.

Frequently asked questions

How much is a flight from Chicago, IL (CHI-All Airports) to San Antonio Airport?
Round-trip flights between Chicago, IL (CHI-All Airports) and San Antonio Intl. Airport (SAT) start from AU$542. This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chicago, IL (CHI-All Airports) to San Antonio Airport?
The majority of flights can be cancelled online, but whether you are charged a fee all comes down to your airline. If you do need to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Chicago, IL (CHI-All Airports) to San Antonio Intl. Airport (SAT) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chicago, IL (CHI-All Airports) to San Antonio Intl. Airport (SAT) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chicago, IL (CHI-All Airports) to San Antonio Intl. Airport (SAT)?
The flight distance between Chicago, IL (CHI-All Airports) (CHI) and San Antonio Airport (SAT) is 1 650 kilometres. Squeeze in a nap or read a good book and the journey will fly by.
Which airlines fly direct from Chicago, IL (CHI-All Airports) to San Antonio Airport?
There are several airlines that fly straight from Chicago, IL (CHI-All Airports) to San Antonio Airport. United Airlines (UA) is a popular choice, offering 91 flights a month. Like more options? Check out what's available with Southwest Airlines (WN). This carrier offers 60 monthly flights between these airports.
Are Chicago, IL (CHI-All Airports) to San Antonio Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so not always. While last-minute deals between Chicago, IL (CHI-All Airports) and San Antonio Intl. Airport (SAT) are of course possible, it's also a good idea to keep an eye on prices well before you fly. In fact, some airlines publish their prices up to a year before the departure date. Expedia is constantly updating the best bargains around, so check back often and be ready to pounce when the fares dip.

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