$131 Find Cheap Flights from Chicago O'Hare Airport to San Antonio - Compare and Save

To fly with an eco-friendly airline from Chicago O'Hare to San Antonio, consider United Airlines. United has taken strides towards attaining sustainability with initiatives such as using biofuel, investing in fuel-efficient aircraft, and carbon offset programs. Its Eco-Skies program focuses on significantly or fully reducing emissions and waste by the year 2050.

Certainly, you can fly conveniently from Chicago O'Hare to San Antonio with your furry friend if you are booking your flight with Southwest Airlines. The airline allow smaller pets like cats and dogs in-cabin if they have proper health documentation and are in the right carriers that fit under the seats. Southwest provides temperature- and pressure-controlled cargo areas for your larger pets at no extra cost.

After landing from your Chicago O'Hare to San Antonio flight, you can easily connect to cities like Austin, Houston, and Corpus Christi with ease. Efficient ground transportation options such as car rentals, taxis, and possibly shuttle services make it convenient to travel to these neighboring destinations.

Yes, you can conveniently rent a car after landing at SAT. At SAT, car rentals are in the Consolidated Rental Car Facility (CONRAC), easily accessible from Terminals A and B via a courtesy shuttle. Some car rental companies on site include Avis, Budget, and Enterprise.

Among airlines operating Chicago O'Hare Intl Airport to San Antonio flights:

• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Chicago O'Hare Intl Airport and San Antonio. The airlines offering nonstop flights on this route include:

• American Airlines
• United Airlines

Flights from Chicago O'Hare Intl Airport to San Antonio usually depart from Chicago O'Hare Intl (ORD) and arrive at San Antonio (SAT).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from Chicago O'Hare Intl Airport to San Antonio:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $213 round-trip via Denver Intl (DEN), compared to $402 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A319 family is used most often on this route, operated mainly by American Airlines and United Airlines. Other aircraft seen on the route include Embraer 175 variants.

One-stop flights from Chicago O'Hare Intl Airport to San Antonio most commonly connect through:

• Denver Intl (DEN) - 33% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 28% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 13% of one-stop connections
• Fort Lauderdale (FLL) - 9% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 25% on the Chicago O'Hare Intl Airport to San Antonio route. Tuesday is the cheapest departure day at $375 round-trip on average, while Sunday is the most expensive at $497, a difference of $122. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Chicago O'Hare Intl Airport to San Antonio flights, with 34% of flights leaving in that window. Afternoon departures account for 34%, evening flights for 16%, and night flights for 16%.

Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.

These are the earliest and latest flight times available from Chicago O'Hare Intl Airport to San Antonio:

• Earliest: departs at 8:45 am and lands at 11:51 am
• Latest: departs at 10:00 pm and lands at 1:06 am.

The flight takes about 3h 06m.

Last-minute fares on this route - booked within 2 weeks of departure - run 72% above the route average of $394. Book 19 weeks before departure for the lowest fares.

A nonstop flight from Chicago O'Hare Intl Airport to San Antonio takes 3h 06m, covering 1,042 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Chicago O'Hare Intl Airport to San Antonio are currently lower than usual. Average one-way flight prices are about $170, which is 28% below the typical average for this route.

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 5h 12m, compared with 5h 14m via Houston George Bush Intcntl (IAH) and 7h 33m via Atlanta Hartsfield-Jackson (ATL).

San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include:
• Europcar
• Fox
• Dollar
• Hertz
• Alamo

Round-trip flights from Chicago O'Hare Intl Airport to San Antonio range from $331 to $497, with an average of $394 over the past 12 months. Anything below $331 counts as a good deal.

Two airlines offer in-flight Wi-Fi on Chicago O'Hare Intl Airport to San Antonio flights:

• • American Airlines
• • JetBlue