River Walk in San Antonio, Texas

$116 Cheap Flights from Chicago (ORD) to San Antonio (SAT)

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to San Antonio International Airport (SAT)

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Cheap Flights from Chicago to San Antonio (ORD-SAT)

Prices were available within the past 7 days and start at $116 for one-way flights and $210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Delta
American Airlines
United
United
Frontier Airlines
Frontier Airlines
Alaska Airlines

Alternative airports near San Antonio

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) cost?
You can find cheap one-way flights from $116 and cheap return flights from $210 Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) with Expedia. One-way flights generally range between $171 and $1098, and roundtrip flights usually range from $337 to $1103. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
August is the cheapest month to fly from Chicago, IL to San Antonio, TX, with average return fares around $293. This price is about 23% lower than the average throughout the year, as travel tends to slow down after the summer peak. Other economical months to consider are September and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
2 airlines operate nonstop service from ORD to SAT:

  • American Airlines operates around 32 direct flights from ORD to SAT every week
  • United operates around 30 direct flights from ORD to SAT every week

What is the cheapest airline that flies from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
United is one of the cheapest airlines offering nonstop flights from O'Hare Intl. (ORD) to San Antonio Intl. (SAT), with round-trip tickets starting from around $500. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The best airline to fly with from Chicago, IL (ORD) to San Antonio, TX (SAT) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. American Airlines offers the most daily flights from ORD to SAT, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
For flights from Chicago to San Antonio, the best times to fly are in August and September. You can expect average return flight prices around $293 during these months. August is ideal for enjoying summer activities, while September offers a more relaxed travel experience. This information is based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
You can find approximately 9 nonstop flights per day from O'Hare Intl. (ORD) to San Antonio Intl. (SAT). For more options, look at flights that include layovers.
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The earliest flight from Chicago (ORD) to San Antonio (SAT) typically departs at around 12:00 AM, operated by American Airlines. This seasonal service is available in December, allowing you to maximize your time in San Antonio. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The most popular departure times for flights from Chicago (ORD) to San Antonio (SAT) are in the late morning to early afternoon, from 9am to 12pm. About 24% of passengers prefer this time window. Many major carriers, including American Airlines and United, offer flights during this window. This timing is popular because it allows you to travel after the morning rush.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
A nonstop flight from ORD to SAT typically takes around 3 hours 20 minutes, covering approximately 1,043 miles. Connecting flights on this route usually add 2 hours 40 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
First class seats are offered on the ORD to SAT route. First class cabins are available on:

  • American Airlines
  • United Airlines
  • Delta Air Lines
  • Spirit Airlines

How much is a business class flight from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
A direct, return business class ticket from Chicago (ORD) to San Antonio (SAT) typically costs between $939 - $1,405. A non-stop, one-way business class flight is usually around $343 - $752. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Antonio from O'Hare Intl. (ORD)?
If you're planning to travel to San Antonio from O'Hare Intl. (ORD), you can fly into San Antonio Intl. (SAT) Some flights may connect through major hubs like Portland Intl. (PDX), Waynesville Regional (TBN), Denver Intl. (DEN) before reaching San Antonio. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) San Antonio Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$210
Distance
1042 mi
Average flight time
3 hours 40 mins

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*Flight schedules are subject to change.

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