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Find cheap one-way flights from Chicago to San Antonio starting at CNY 53.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Chicago to San Antonio?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Chicago to San Antonio

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From US$53
Spirit Airlines
From US$57
American Airlines
From US$69
Delta Air Lines
From US$93
United Airlines
From US$104
Sun Country Airlines
From US$115
Alaska Airlines
From US$145
Southwest Airlines
From US$154
Jetblue Airways
From US$441
ANA airlines

Find more flights and airlines

Find cheap flights from Chicago to San Antonio by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Chicago to San Antonio.

  • Cheapest
    Frontier Airlines
    ORD
    18:27
    16h 55m
    1 transfer
    SAT
    11:22
    O'Hare International Airport - San Antonio International Airport
    Tue, Apr 30Frontier Airlines
    US$53
  • Frontier Airlines
    MDW
    22:55
    12h 27m
    1 transfer
    SAT
    11:22
    Midway International Airport - San Antonio International Airport
    Tue, Apr 30Frontier Airlines
    US$53
  • Frontier Airlines
    MDW
    22:55
    12h 27m
    1 transfer
    SAT
    11:22
    Midway International Airport - San Antonio International Airport
    Tue, Apr 30Frontier Airlines
    US$53
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Chicago (CHI) to San Antonio (SAT) the cheapest?

    Airlines adjust prices for flights from Chicago to San Antonio based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Chicago (CHI) to San Antonio (SAT) cost?

    According to Trip.com's data, the lowest price is around $368.
  • How long does it take to fly from Chicago (CHI) to San Antonio (SAT) and what is the distance?

    It takes around 3 hours 27 minutes to fly from Chicago (CHI) to San Antonio (SAT).
  • What is the transportation method from the main airport to downtown in San Antonio?

    • The distance from San Antonio International Airport to downtown is about 12km. It takes about 30 minutes by taxi.
  • What are the most popular airlines that fly from Chicago (CHI) to San Antonio (SAT)?

How to find a cheap flight from Chicago to San Antonio

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Chicago to San Antonio. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Chicago to San Antonio Flight Information

Cheapest nonstop flight price

$53

Cheapest round-trip ticket price

$161

Off-season for travel

April

Peak season for travel

July

Flight distance

1,681.81km

Average flight time

3 hours 27 minutes

Popular airline

American Airlines