Cheap flights from Chicago to San Antonio from $91

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Cheap Chicago - San Antonio flight offers

Find cheap flight tickets and last-minute flight deals from Chicago to San Antonio

Frontier Airlines
Tue, 06/30 (CHI) Chicago -> (SAT) San Antonio
Direct
Frontier Airlines
Sun, 07/05 (SAT) San Antonio -> (CHI) Chicago
Direct

Price found 8 days ago
from $125
Southwest Airlines
Tue, 06/09 (CHI) Chicago -> (SAT) San Antonio
Direct

Price found 10 days ago
from $91
American Airlines
Mon, 11/23 (CHI) Chicago -> (SAT) San Antonio
Direct

Price found 13 days ago
from $153
Frontier Airlines
Tue, 06/30 (CHI) Chicago -> (SAT) San Antonio
Direct
Frontier Airlines
Sun, 07/05 (SAT) San Antonio -> (CHI) Chicago
Direct

Price found 8 days ago
from $125

Info about flights from Chicago to San Antonio

Some useful info about flights from Chicago to San Antonio to help you plan your next trip

Best price last 15 days $91
Average flight duration 2h 46m
Cheapest month October
Average number of flights per week 10
First flight time 02:15
Last flight time 22:50

When is it best to fly from Chicago to San Antonio

Find out what is the best time of year to fly from Chicago to San Antonio

Jun $124
Jul $131
Aug $107
Sep $221
Oct $87
Nov $128
Dec $172
Jan $135
Feb $134
Mar $166
Apr $137
May $141
Most expensive month September
Average price $221
Cheapest month October
Average price $87
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

Top airlines on the route Chicago - San Antonio

Airlines providing flights to San Antonio from Chicago

How much is a flight from Chicago to San Antonio?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Chicago and San Antonio.

$91 is the lowest fare found in the past 15 days.

Fares change often — checking several times throughout the week can make a big difference. Booking in advance often means access to lower prices for the Chicago - San Antonio route.

Which airports are most convenient between Chicago and San Antonio?

Whether it’s cost or connection time, the right airport combination can make a difference.

  • Airports in Chicago: There are 3 airports in Chicago - Midway, O'Hare, Rockford.
  • Airports in San Antonio: San Antonio is the only functioning airport for now.

In some cases, flying into a secondary airport can also reduce transfer costs. Connections from multiple airports give you more flight options and airlines.

Flights from Chicago to San Antonio

Plan your perfect flight from Chicago to San Antonio

Jetcost gives you full control over your flight search. Filter by date, time, duration, price, and airline. See round-trip and one-way options from low-cost and full-service carriers like Delta, United, American, and more.

Other popular destinations

Planning a trip to United States? Other frequent searches include: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Some airlines include baggage in the fare, others don’t — always check the details before booking. If you're looking for round-trip flights, you can easily see the most convenient combinations.

Frequently Asked Questions

Frequently asked questions about flights from Chicago to San Antonio.

How much does an airline ticket from Chicago to San Antonio cost?

The lowest price recorded in the last 15 days for a flight from Chicago to San Antonio is $91.

How far is Chicago from San Antonio?

Chicago is about 1041 mi from San Antonio.

What are the airports in San Antonio?

San Antonio has one airport: San Antonio.

What are the airports in Chicago?

Chicago has 3 airports: Midway, O'Hare, Rockford.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Las Vegas, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Chicago to San Antonio?

The best time to book a flight from Chicago to San Antonio is 1 month in advance, while the worst time is 1 week in advance.

What is the cheapest month to fly from Chicago to San Antonio?

The cheapest month to fly from Chicago to San Antonio is October.

What is the most expensive month to fly from Chicago to San Antonio?

The most expensive month to fly from Chicago to San Antonio is September.

What is the best day of the week to fly from Chicago to San Antonio?

For flights from Chicago to San Antonio Tuesday is on average the cheapest day to fly, while Thursday is the most expensive day to fly.