$174+ Cheap flights from Chicago (CHI) to San Antonio (SAT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Chicago to San Antonio with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Chicago to San Antonio are usually found in September or August, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from Chicago to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 16, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Priceline) |
One-way from | $174 (Southwest) |
Popular in | December |
Cheapest in | September |
Average price | $398 |
Find flight deals from Chicago to San Antonio
Cheapest flights from Chicago to San AntonioExplore the most affordable flight options available from Chicago to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.
Explore the most affordable flight options available from Chicago to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.
This Mytrip deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Chicago to San Antonio within your budget
Customize your flight search to find flights from Chicago to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 16, 2025.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Wed 2/19
10:45 pm-6:30 pm
2 stops19h 45m
San Antonio
Sat 2/22
5:45 am-9:50 pm
1 stop16h 05m
ChicagoSan Antonio
MDW - SAT
MDWSAT
Chicago Midway
Thu 3/27
6:40 am-1:18 pm
1 stop6h 38m
San Antonio
Sun 3/30
5:10 pm-5:31 am
1 stop12h 21m
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Fri 2/14
7:18 pm-7:14 pm
1 stop23h 56m
San Antonio
Mon 2/17
5:38 pm-4:50 am
1 stop11h 12m
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Fri 2/14
7:18 pm-7:14 pm
1 stop23h 56m
San Antonio
Sun 2/16
5:45 am-12:44 am
3 stops42h 59m
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Sat 2/15
8:00 pm-11:15 pm
Nonstop3h 15m
San Antonio
Tue 2/18
7:00 am-9:51 am
Nonstop2h 51m
ChicagoSan Antonio
MDW - SAT
MDWSAT
Chicago Midway
Sat 2/15
5:15 pm-8:15 pm
Nonstop3h 00m
San Antonio
Sat 2/22
6:45 am-9:20 am
Nonstop2h 35m
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Sat 2/15
8:50 pm-11:50 pm
Nonstop3h 00m
San Antonio
Sat 2/22
6:03 am-8:49 am
Nonstop2h 46m
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Wed 2/19
5:13 pm-12:27 am
1 stop7h 14m
San Antonio
Sat 2/22
5:30 am-1:42 pm
1 stop8h 12m
ChicagoSan Antonio
MDW - SAT
MDWSAT
Chicago Midway
Wed 2/19
5:05 pm-12:27 am
1 stop7h 22m
San Antonio
Thu 2/20
6:20 am-12:42 pm
1 stop6h 22m
ChicagoSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Thu 2/13
5:45 am-5:45 pm
2 stops12h 00m
San Antonio
Mon 2/24
6:35 am-10:45 am
1 stop4h 10m
Compare providers for flights from Chicago to San Antonio
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to San Antonio in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Chicago-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Chicago with our price prediction graph.
Travel insights for flights from Chicago to San Antonio
Get recent, data-driven insights about flights from Chicago to San Antonio including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Chicago to San Antonio?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to San Antonio. Price data was last updated on January 10, 2025.
Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Chicago to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Chicago to San Antonio (average of $295). Flying from Chicago to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to SAT?
Find hourly flight availability from Chicago to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.
It’s typically best to fly out from Chicago to San Antonio in the afternoon. Doing so could potentially save you 21% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from Chicago to San Antonio?
Use this chart to determine the cheapest time to fly round-trip from Chicago to San Antonio. Price data was last updated on October 20, 2024.
Travelers seeking maximum savings on their Chicago to San Antonio flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to San Antonio
Explore weekly flight availability from Chicago to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 16, 2025.
The most flights from CHI to SAT are scheduled on a Thursday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
Rainfall in San Antonio by month
Plan your trip to San Antonio by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.
Temperature in San Antonio by month
Plan your trip to San Antonio by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated January 16, 2025.
Get a feel of what it's like to fly with American Airlines, Spirit Airlines and Frontier from Chicago to San Antonio by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Comfort
Crew
Boarding
Overall
Entertainment
Reviews
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Food
Comfort
Crew
Boarding
Overall
Entertainment
Reviews
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Food
Comfort
Crew
Boarding
Overall
Entertainment
Reviews
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Food
Comfort
Crew
Boarding
Overall
Entertainment
Reviews
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Food
Comfort
Crew
Boarding
Overall
Entertainment
Reviews
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Food
Comfort
Crew
Boarding
Overall
Entertainment
Reviews
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Related info for your journey
Find useful and relevant information for your journey from Chicago to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Chicago to San Antonio
Discover the top 6 airlines that operate flights from Chicago to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 16, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$225 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$126 | Average$206 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$131 | Average$428 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$195 | Average$387 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$259 | Average$474 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$339 | Average$419 | FlexibilityNo cancel fee | On-timeN/A |