S$435 Cheap Flights from Chicago to San Antonio

View S$435 flight on Sun, 22 Mar, 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 to San Antonio (CHI-SAT)

Prices were available within the past 7 days and start at S$435 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

April is typically the cheapest month to fly

From S$163 - S$615 per traveller.
Chicago to San Antonio route information
Origin airport
CHI-All Airports
Destination airport
San Antonio Intl.
Distance
1639 km

Flights from Illinois to San Antonio

When looking for plane tickets from Illinois to San Antonio, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to San Antonio. Look for CHI to SAT airfare with the assurance that you have the largest online travel agency working for you.

Expedia lets you search across the largest number of airlines and San Antonio flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Illinois San Antonio flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Illinois to San Antonio trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your San Antonio flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Illinois to San Antonio with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

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 . 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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