Question 1

What is the cheapest Chicago O'Hare Intl to San Antonio flight route?

Accepted Answer

Fly from Chicago O'Hare Intl to San Antonio for the best Chicago O'Hare Intl - San Antonio flight prices

Question 2

How have Chicago O'Hare Intl Airport to San Antonio flight prices changed over time?

Accepted Answer

As of November 2025, prices for Chicago O'Hare Intl Airport to San Antonio flights are approximately 15% cheaper when compared to flights at the same time last year.

Question 3

What airlines fly to San Antonio?

Accepted Answer

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to San Antonio from Chicago O'Hare Intl Airport according to our data. American Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 5 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

Question 4

How many flights depart from Chicago O'Hare Intl Airport to San Antonio on average per day?

Accepted Answer

As of November 2025, 13 flights take off from Chicago O'Hare Intl Airport and land in San Antonio each day. The most common flight departure time for this route is 6:00PM, with 59% of daily flights taking off in the evening.

Question 5

What is the cheapest airline that flies from Chicago O'Hare Intl to San Antonio?

Accepted Answer

Spirit Airlines and Frontier are the most popular carriers operating from Chicago O'Hare Intl to San Antonio

Question 6

How far in advance should I book a flight to San Antonio?

Accepted Answer

You are more likely to see cheaper flights to San Antonio from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $394 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Chicago O'Hare Intl Airport for as low as $307 on momondo.

Question 7

Can stopping save me money on Chicago O'Hare Intl Airport to San Antonio flights?

Accepted Answer

You could potentially save up to 53% on your flight if you consider stops on a Chicago O'Hare Intl Airport to San Antonio flight.

Question 8

How many flights depart from Chicago O'Hare Intl Airport to San Antonio on average per week?

Accepted Answer

92 flights are operational weekly from Chicago O'Hare Intl Airport to San Antonio as of November 2025. The most popular departure day for this route is Wed, with 26% of flights per week taking off on this day.

Question 9

What cabin class options are available on Chicago O'Hare Intl to San Antonio flights?

Accepted Answer

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 10

What is the cheapest day to depart on your flight to San Antonio?

Accepted Answer

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $392. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $453.

Question 11

What is the cheapest time of day to depart on your flight to San Antonio?

Accepted Answer

According to our data, the cheapest time of day to fly to San Antonio is at noon. momondo users have found flights departing from Chicago O'Hare Intl Airport to San Antonio at noon for as low as $386. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $417. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Question 12

What is the cheapest month to fly to San Antonio?

Accepted Answer

If you aren’t able to travel during the month of August, then book flights to San Antonio from Chicago O'Hare Intl Airport during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $333.

Question 13

Which airlines fly direct from Chicago to San Antonio?

Accepted Answer

A good number of airline operators offer one-way flights from Chicago to San Antonio. Each airline offers something different in terms of amenities, comfort, and prices, so it is up to you to determine the most convenient one. For example, American Airlines offers daily Chicago to San Antonio flights departing from O'Hare International Airport (ORD) and landing at San Antonio International Airport (SAT) in less than 3h. Some of the amenities you get with American Airlines include streaming, on-demand, and live TV, free snacks, wireless internet that can facilitate Netflix streaming (at a fee), and comfortable seats. United Airlines flights are a bit over 3h, also departing and landing in similar airports. The difference comes in with the amenities, as United Airlines offers free wireless internet that can only facilitate basic web browsing and premium snacks at a fee. You could also go for the cheap flights from Chicago to San Antonio with a layover in Denver offered by Frontier.

Question 14

What is the best way to get in and out of airports in Chicago and San Antonio?

Accepted Answer

To get to O’Hare International Airport from downtown Chicago, you can take the I-90 W and it will only be about 20min before you are in the airport ready for your flights from Chicago to San Antonio. Here, you can either choose to take a taxi or rental car, both of which offer the most convenience. There are plenty of rental car locations all over downtown Chicago, so finding one should be easy. Taxis can pick you up at any point you like. The alternative to that would be the blue line train, which goes from La Salle Station towards Cumberland, which is less than a mile from O’Hare Airport. To get to downtown San Antonio from the airport, you can take the Metropolitan Transit bus route 5, which operates between the airport and San Antonio every day. The buses can be found at Airport Blvd and will drop you at N. St Mary’s & Lexington, which is a short walk from downtown. If you have loads of luggage and want to avoid walking too far, you could take a car rental from the airport, which affords more convenience and flexibility.

Which cities can you get to from San Antonio Airport?

After your flight from Chicago to San Antonio has landed at San Antonio Airport, you have access to some of the most beautiful towns in Texas. Concan, for example, is an amazing summer treat in the outskirts of San Antonio which is accessible via the US-90 E. Other cities in proximity to San Antonio include Fredericksburg, Boerne, and Austin.

Question 15

What are the benefits of the different airports in Chicago and San Antonio?

Accepted Answer

There are plenty of benefits of traveling through O'Hare International Airport (ORD). For starters, there are about 15 lounges around the airport to accommodate waiting passengers. These lounges have comfortable sitting and sleeping space as well as spacious workstations which can come in handy in case you want to get some work done before boarding your flight. Also, considering Chicago’s vibrant food scene, there are dining options practically at every corner of the airport. From classic Chicago-style hotdogs to that famous deep-dish pizza and even American steaks, it’s amazing how many dining options there are. In San Antonio, the only alternative to San Antonio International would be Austin Bergstrom International Airport, which is under anh away from San Antonio. However, considering that passenger traffic is higher in Austin compared to San Antonio, you’ll be better off flying into San Antonio.

Question 16

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to San Antonio Airport?

Accepted Answer

Prices for flights from Chicago O'Hare Intl Airport to San Antonio Airport refresh daily.

Question 17

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to San Antonio Airport?

Accepted Answer

The number of operators available for flights from Chicago O'Hare Intl Airport to San Antonio Airport is 5 as of November 2025.

Question 18

How old do you have to be to fly from Chicago O'Hare Intl Airport to San Antonio Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to San Antonio Airport.

Question 19

What documentation or ID do you need to fly to San Antonio Airport?

Accepted Answer

The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best Price Found	$227
Fastest flight time	2h 53m
Direct flights	Every day
Airports in San Antonio	1 airport

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $125	Free Cancellation	Rating 5.8 3,099 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $172	Free Cancellation	Rating 6.3 8,158 reviews	Search Spirit Airlines flights
Southwest	PriceFrom $203	Free Cancellation	Rating 8.0 4,254 reviews	Search Southwest flights
United Airlines	PriceFrom $212	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
American Airlines	PriceFrom $214	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights

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What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Chicago O'Hare Intl Airport during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $333.

What is the cheapest day to depart on your flight to San Antonio?

What is the cheapest time of day to depart on your flight to San Antonio?

What is the cheapest Chicago O'Hare Intl to San Antonio flight route?

Fly from Chicago O'Hare Intl to San Antonio for the best Chicago O'Hare Intl - San Antonio flight prices

How far in advance should I book a flight to San Antonio?

What cabin class options are available on Chicago O'Hare Intl to San Antonio flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to San Antonio flights?

You could potentially save up to 53% on your flight if you consider stops on a Chicago O'Hare Intl Airport to San Antonio flight.

How have Chicago O'Hare Intl Airport to San Antonio flight prices changed over time?

As of November 2025, prices for Chicago O'Hare Intl Airport to San Antonio flights are approximately 15% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Chicago O'Hare Intl to San Antonio?

Spirit Airlines and Frontier are the most popular carriers operating from Chicago O'Hare Intl to San Antonio

What airlines fly to San Antonio?

How many flights depart from Chicago O'Hare Intl Airport to San Antonio on average per day?

As of November 2025, 13 flights take off from Chicago O'Hare Intl Airport and land in San Antonio each day. The most common flight departure time for this route is 6:00PM, with 59% of daily flights taking off in the evening.

How many flights depart from Chicago O'Hare Intl Airport to San Antonio on average per week?

92 flights are operational weekly from Chicago O'Hare Intl Airport to San Antonio as of November 2025. The most popular departure day for this route is Wed, with 26% of flights per week taking off on this day.

When to book flights from Chicago O'Hare Intl Airport to San Antonio

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When did momondo last update prices for flights from Chicago O'Hare Intl Airport to San Antonio Airport?

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How old do you have to be to fly from Chicago O'Hare Intl Airport to San Antonio Airport?

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