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Find your next flight from Chicago (O'Hare) to San Antonio now!
Looking for low fares? Check out this upcoming flight:
Chicago (O'Hare), IL to San Antonio, TX
*Restrictions and exclusions apply. Seats and dates are limited. Select markets. 29 travel days available. Fares are updated hourly. Fares displayed on external channels may no longer be available at time of booking. To find the most updated fare, please visit Southwest.com.
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Find low faresTravel tips for your next Southwest flight
How to board the plane earlier:
Southwest seats are first come, first served based on check-in order. But there are ways to board the plane earlier!
- Purchase EarlyBird Check-In®1 for automatic check-in and a better boarding position.
Enjoy movies, sips, and snacks during your flight.
Take advantage of inflight entertainment with free movies4, free live TV5, free texting6, and $8 inflight Internet7.
We also offer free sodas, coffee, and snacks8—learn more about the inflight food and beverage experience.
Take advantage of free same-day standby9.
Have a change of travel plans? We offer free same-day standby for all fare types. This means that you can retain your current flight while listing for standby on an earlier flight. If a seat becomes available, it’s yours at no charge!
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| Fare | Fly one-way from $167 (departing on 8/21)* |
|---|---|
| Departing from | Chicago O'Hare International Airport (ORD) |
| Arriving at | San Antonio International Airport (SAT) |
| Average flight time | Unavailable |
| Distance | 1041 miles |
| 118† | Weekly flights |
|---|---|
| 0 | Nonstop flight per day Monday through Friday |
| 0 | Nonstop flight on Saturday |
| 0 | Nonstop flight on Sunday |
Other popular flights from Chicago (O'Hare):
†Weekly flights based on DOT published scheduled average flights Monday through Sunday between 5/1/2025 and 5/31/2025. Note: route may not operate every day of the week.
Explore San Antonio.
On the banks of its eponymous river, San Antonio combines traditional Spanish and Mexican style with modern-day amenities, making it a comfortable and unique destination. The first thing you’ll want to do is check out the famed River Walk. Stroll along the San Antonio River, stop for a meal, and do some shopping—window or otherwise. Or you could take it all in by taking a boat ride to enjoy unforgettable views of the River Walk and other nearby attractions.
San Antonio is a must-visit for history buffs. Remember the Alamo? Well, it’s in San Antonio. A popular part of American history, this fortress was the site of the Battle of the Alamo in 1836; today it’s a museum and a church. There’s even more to explore at San Antonio Missions National Historic Park. It’s home to four of the five Spanish missions in San Antonio: Mission Concepción, Mission San Jose, Mission San Juan, and Mission Espada. You’ll also find the Espada Aqueduct there. Built in 1745, it was used to irrigate 3,500 acres of land.
Nature enthusiasts will have plenty to choose from in San Antonio. Take a tour at Natural Bridge Caverns and discover the amazing underground formations and cavities. Then seek your fortune by panning for gems. Brackenridge Park has walking paths that wind around the San Antonio River with beautiful views in a truly tranquil environment. Take your time enjoying the park by packing a picnic and keep an eye out for the resident ducks. Visit the Japanese Tea Garden, wander along tree-lined walkways, cross stone bridges, and take photos of the koi ponds and 60-foot waterfall.
When your day is over, San Antonio has plenty of nightlife options. The Spanish influence on the city is also prevalent in the local cuisine with spicy, Tex-Mex style tacos, enchiladas, and stews. Or, if you’re looking for less heat, there are plenty of options for Texas barbecue. Don’t forget the vibrant music scene. From rock and blues to country and western, you’ll find a live music venue that’s to your liking.
Pack your bags—San Antonio is ready to satisfy your wanderlust.
Questions we hear the most
There are 118 weekly flights from Chicago (O'Hare) to San Antonio on Southwest Airlines.
To find the lowest fares by day and time to fly Chicago (O'Hare) to San Antonio with Southwest, check out our Low Fare Calendar.
You can rent a car at San Antonio International Airport—book yours with your flight.
Yes! Flights from Chicago (O'Hare) to San Antonio—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Visit the Southwest Airlines® Help Center for helpful information and answers to frequently asked questions.
1EarlyBird Check-In® pricing starts at $15 one-way, and is subject to availability. Pricing may vary based on the popularity and length of each (one-way) flight. Please see optional travel charges for more details.
2Upgraded boarding prices and benefits are per eligible segment. Flights must be within 24 hours of departure to be eligible for upgraded boarding.
4Where available. Available only on WiFi-enabled aircraft. Limited-time offer.
5Due to licensing restrictions, on WiFi-enabled international flights, free live TV and iHeartRadio may not be available for the full duration of flight.
6Texting only allows access to iMessage and WhatsApp (which must be downloaded and activated before connecting to SouthwestWiFi).
7Internet access for $8 per device from takeoff to landing. Price is subject to change. May not be available for the full duration of flight. In order to provide a top-notch Internet experience, we prohibit access to certain high-bandwidth applications and websites. We also prohibit access to certain obscene or offensive content.
8Flights traveling 175 miles or less will have only water available. Complimentary snacks are served on flights over 175 miles. If you’re flying between Hawaii and the continental U.S., you’ll have even more snacks to choose from.
9Free same-day standby: You can list for same-day standby for an earlier flight via a Southwest Customer Service Agent at the airport or the Southwest app or mobile web. You must request to be added to the same-day standby list at least 10 minutes prior to the scheduled departure of your original flight or the no-show policy will apply. If using the app or mobile web, you must list your name 30 minutes ahead of scheduled departure. You will receive a message based on the contact preference selected during booking if you are cleared on the flight. Group bookings and Unaccompanied Minors are not eligible for same-day standby. You will be required to pay any government taxes and fees associated with these itinerary changes but refunds will be provided. Your original boarding position is not guaranteed on your standby flight. Southwest Business Customers booked through travel agencies may need to see a Southwest agent at the airport for a standby listing. See Southwest.com/standby for more details.