ORD - SAT

$105 Find Cheap Flights from Chicago O'Hare Airport to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to San Antonio departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to San Antonio, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$292
Typical prices: $413-$255
Frontier
Fri 6/5Mon 6/8
ORD - SAT • 2 stops
Cheapest non-stop
$297
Typical prices: $447-$297
American Airlines
Tue 6/2Tue 6/16
ORD - SAT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Basic Economy has no free checked bags.
Expect over 30-minute security lines at O'Hare.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $297 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 3h 07m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $182 (round-trip)
Shortest trip • 4h 45m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
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+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Flight Deals
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Flight Deals

Cheap Flights from O'Hare Intl to San Antonio (ORD-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from O'Hare Intl to San Antonio

Fri, Jun 5 - Mon, Jun 8
Multiple Airlines Logo
1:50 pm - 6:59 pm
ORD
-
SAT
29h 09m
2 stops
Multiple Airlines Logo
5:26 pm - 12:25 pm
SAT
-
ORD
18h 59m
1 stop
$292Multiple Airlines
Tue, Jun 2 - Tue, Jun 16
American Airlines Logo
10:00 am - 12:52 pm
ORD
-
SAT
2h 52mnonstop
American Airlines Logo
6:24 pm - 9:29 pm
SAT
-
ORD
3h 05mnonstop
$297American Airlines
Wed, May 13 - Mon, May 18
Multiple Airlines Logo
9:37 pm - 6:59 pm
ORD
-
SAT
21h 22m
1 stop
Multiple Airlines Logo
7:54 pm - 10:14 pm
SAT
-
ORD
26h 20m
2 stops
$298Multiple Airlines
Tue, May 26 - Thu, May 28
Multiple Airlines Logo
6:55 am - 6:59 pm
ORD
-
SAT
12h 04m
2 stops
Multiple Airlines Logo
5:26 pm - 12:37 pm
SAT
-
ORD
19h 11m
1 stop
$299Multiple Airlines
Fri, Jul 3 - Wed, Jul 8
Multiple Airlines Logo
5:10 am - 6:37 pm
ORD
-
SAT
13h 27m
1 stop
Multiple Airlines Logo
8:59 pm - 5:28 am
SAT
-
ORD
8h 29m
1 stop
$300Multiple Airlines
Mon, Jun 15 - Wed, Jun 17
Frontier Logo
9:48 pm - 6:56 pm
ORD
-
SAT
21h 08m
1 stop
Frontier Logo
8:56 pm - 5:32 am
SAT
-
ORD
8h 36m
1 stop
$301Frontier
Sat, May 16 - Tue, May 19
United Airlines Logo
9:05 am - 12:15 pm
ORD
-
SAT
3h 10mnonstop
United Airlines Logo
5:34 pm - 8:36 pm
SAT
-
ORD
3h 02mnonstop
$303United Airlines
Sun, May 24 - Sun, May 31
Frontier Logo
9:37 pm - 6:59 pm
ORD
-
SAT
21h 22m
1 stop
Frontier Logo
7:54 pm - 8:32 pm
SAT
-
ORD
24h 38m
1 stop
$304Frontier
Fri, Jul 3 - Wed, Jul 8
Multiple Airlines Logo
5:10 am - 6:37 pm
ORD
-
SAT
13h 27m
1 stop
Multiple Airlines Logo
7:51 pm - 8:52 pm
SAT
-
ORD
25h 01m
1 stop
$305Multiple Airlines
Wed, May 20 - Tue, May 26
Multiple Airlines Logo
1:59 pm - 4:16 pm
ORD
-
SAT
26h 17m
2 stops
Multiple Airlines Logo
7:54 pm - 8:32 pm
SAT
-
ORD
24h 38m
1 stop
$306Multiple Airlines
Booking Insights

KAYAK's insights & trends for O'Hare Intl to San Antonio flights

Get data-powered insights and trends into flights from O'Hare Intl to San Antonio to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago O'Hare Intl Airport to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to San Antonio departing in June.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to San Antonio?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to San Antonio clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Antonio on a Tuesday and more expensive on a Sunday. On your return trip to Chicago O'Hare Airport, you should consider flying back on a Thursday, and avoid Sundays for better deals.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to San Antonio is August, where tickets cost $285 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $447 and $425 respectively.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to San Antonio?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $407 on average.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to San Antonio?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to San Antonio, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from O'Hare Intl to San Antonio

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low seasonNovember
Cheapest flight$96
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 18% increase in price.
Flight from Chicago O'Hare Airport to San Antonio

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

Are your dates flexible? Find out the best times to travel from O'Hare Intl to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to San Antonio flights

  • Which eco-friendly airline should I consider for my flight from Chicago O'Hare to San Antonio?

    To fly with an eco-friendly airline from Chicago O'Hare to San Antonio, consider United Airlines. United has taken strides towards attaining sustainability with initiatives such as using biofuel, investing in fuel-efficient aircraft, and carbon offset programs. Its Eco-Skies program focuses on significantly or fully reducing emissions and waste by the year 2050.

  • Can I conveniently fly from Chicago O'Hare to San Antonio with my furry friend?

    Certainly, you can fly conveniently from Chicago O'Hare to San Antonio with your furry friend if you are booking your flight with Southwest Airlines. The airline allow smaller pets like cats and dogs in-cabin if they have proper health documentation and are in the right carriers that fit under the seats. Southwest provides temperature- and pressure-controlled cargo areas for your larger pets at no extra cost.

  • Which cities can I connect to after deplaning from my Chicago O'Hare to San Antonio flight at San Antonio (SAT)?

    After landing from your Chicago O'Hare to San Antonio flight, you can easily connect to cities like Austin, Houston, and Corpus Christi with ease. Efficient ground transportation options such as car rentals, taxis, and possibly shuttle services make it convenient to travel to these neighboring destinations.

  • Can I rent a car after deplaning from my Chicago O'Hare to San Antonio flight at San Antonio (SAT)?

    Yes, you can conveniently rent a car after landing at SAT. At SAT, car rentals are in the Consolidated Rental Car Facility (CONRAC), easily accessible from Terminals A and B via a courtesy shuttle. Some car rental companies on site include Avis, Budget, and Enterprise.

  • What is the cheapest flight from Chicago O'Hare Intl Airport to San Antonio?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to San Antonio was $96 for a one-way ticket and $292 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and San Antonio?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to San Antonio?

    American Airlines, JetBlue, Alaska Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Chicago O'Hare Airport to San Antonio flight route.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to San Antonio?

    The Embraer 175 is the aircraft model that flies most regularly on the Chicago O'Hare Airport to San Antonio flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to San Antonio?

    Star Alliance, and oneworld are the airline alliances operating flights between Chicago O'Hare Airport and San Antonio, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chicago O'Hare Airport to San Antonio?

    There are nonstop flights from Chicago O'Hare Airport to San Antonio on a daily basis.

  • Which is the best airline for flights from Chicago to San Antonio, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to San Antonio are United Airlines and American Airlines. With an average price for the route of $406 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $376 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $228 or less one-way and $386 or less round-trip.
  • Since most airlines with flights from Chicago O'Hare Airport (ORD) to San Antonio have at least a single layover, you are encouraged to include your layovers when budgeting for your trip. Some of the common layovers to include are Dallas/Fort Worth (DFW), Fort Lauderdale (FLL) and Orlando (MCO).
  • Among the best airlines to consider for your last-minute flight from Chicago to San Antonio via O'Hare Intl (ORD) and San Antonio (SAT) are American and United airlines. These two are among the few airlines offering the highest number of direct flights from ORD to SAT. They are, therefore, good options for travelers on a tight travel schedule.
  • Although most airlines offerings flights from Chicago O'Hare Airport to San Antonio highly consider Persons with Reduced Mobility (PRMs), American and Spirit Airlines are highly regarded. Besides offering priority boarding for PRMs, these airlines have a team of professionals trained to offer personalized assistance to PRMs board in the airports and on the flight.
  • For your convenient connections from downtown Chicago to O'Hare Intl (ORD) for your flight to San Antonio, you can consider the "L" train system. The Blue Line train provides a direct connection to ORD. It's the most efficient choice due to its frequent departures and consistent travel time. Buses like the 250 also serve the route, but the Blue Line offers quicker and more reliable service.
  • Delta Air Lines is an excellent choice for your family's flight from Chicago O'Hare to San Antonio. With its dedicated family seating zones, pre-boarding for families, and complimentary in-flight entertainment options, Delta ensures a stress-free and enjoyable travel experience for both parents and kids.

Prefer to fly direct from Chicago O'Hare Airport to San Antonio?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to San Antonio.
Find which airlines fly direct from Chicago O'Hare Intl Airport to San Antonio Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to San Antonio

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

San Antonio to Chicago O'Hare Intl

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top 4 airlines serving from O'Hare Intl to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Chicago to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9681 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

A long delay. Don't travel late in the day.

8.0 ExcellentTimothy, Apr 2026
ORD - CID
Read more United Airlines reviews

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

Got home at 3am after deboarding the plane. No compensation offered by American

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

American continues to decline in their customer service and its beyond disappointing.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

We get stuck in the plane when landed during 45min and no communication from the crew People were listening to their phone and music out loud and nobody told them anything I definitely want stop booking spirit flight it is a disaster

Good: It was cheap and they got us to our destination safely. Not so Good: Gates experience with many, many nauseatingly (almost) threatening announcements about bags size and how much they were going to charge us if our bag was too big, even to the point of having a gate agent roaming around through the passengers eyeballing bags size and making people go check their bags in the sizers.

Terrible. The flight was randomly delayed in Chicago causing us to miss our connection and they offered us a flight the next day at 6 am and it would have taken till 345 to get to Pensacola. They didn’t cover any fees. Our bags also supposedly were on the flight to Pensacola and we tried to get them yesterday after driving 6 hours and nobody was available. Worst company ever and will never use them again. Had to pay for a rental. Spirit is claiming in climate weather for the delay but there wasn’t any weather issuesz it’s a bunch of bullshit and I am not happy

Checking in at desk in Chicago was horrible. Person was not friendly never smiled and said my flight was not paid for so I had to give another credit card. Then it ended up that I was charged twice. Then after arriving at my destination had to wait on the phone a long time to speak to a person to fix the double charge! Thank goodness the flight was perfect.

Flight was delayed for 12 h. They should stop overlooking flights.

All of our flights were canceled, though every other airline was flying out and in

For the cost you can't e too critical, but the inablitiy to recline the seat and minimal cushioning in the seats made for a less than comfortable flight. Other than that we had an ealry departure and arrival, boarding was smooth.

Horrible experience. First and last time using this airline. Made an announcement that boarding will start in 15 minutes, canceled the flight 5 minutes later due to no airline staff. Had to book another flight on Delta since Spirit had no other flights arriving to my original destination the same day. I wouldn't recommend anyone to fly with Spirit. No wonder why it consistently ranks high among worst airlines.

it was terrible. flight was cancelled hours before the flight without a given reason and no other booking available .

The plane was supposed to leave at 12:59 Amma and another plane took us around 9:30 am. There were 7 delay announcements. We were to receive a voucher of $12 back to pay for food at any place in the airport. One passenger tried to use the voucher was denied. I did not receive the voucher for me, my son, and grandson. I went to the desk and informed them and they took my phone # and email and they told me to wait. I did and was never sent. The plane was uncomfortable, the crew was dismissive of anyone beyond the last two seats. I will NEVER fly or recommend Spirit Airlines again.

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Everything you need to know for your flight from O'Hare Intl to San Antonio

Information on your arrival and departure airports