SAT - ORD

$62 Find Cheap Flights from San Antonio to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to O'Hare Intl departing on 3/4. 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 Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Chicago, 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 San Antonio to Chicago, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$185
Overall average: $382
Multiple Airlines
Fri 2/20Sun 2/22
SAT - ORD • 1 stop
Cheapest non-stop
$275
Typical prices: $287-$394
United Airlines
Wed 2/18Sat 2/21
SAT - ORD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Consider Main Cabin Extra on American for perks.
Expect short security lines at San Antonio Airport.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $192 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 14% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to O'Hare Intl 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 San Antonio to O'Hare Intl

Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
5:04 pm - 10:46 am
SAT
-
ORD
17h 42m
1 stop
Multiple Airlines Logo
7:00 am - 9:30 am
ORD
-
SAT
26h 30m
1 stop
$185Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
Multiple Airlines Logo
6:12 pm - 11:14 pm
SAT
-
ORD
29h 02m
1 stop
Multiple Airlines Logo
6:40 am - 11:59 pm
ORD
-
SAT
17h 19m
2 stops
$189Multiple Airlines
Mon, Mar 2 - Thu, Mar 5
Frontier Logo
8:22 pm - 10:51 am
SAT
-
ORD
14h 29m
2 stops
Frontier Logo
4:16 pm - 12:56 am
ORD
-
SAT
8h 40m
1 stop
$192Frontier
Fri, Mar 13 - Sun, Mar 15
Spirit Airlines Logo
10:27 am - 11:17 pm
SAT
-
ORD
12h 50m
1 stop
Spirit Airlines Logo
5:05 am - 9:32 am
ORD
-
SAT
28h 27m
1 stop
$196Spirit Airlines
Sun, Mar 1 - Thu, Mar 5
Multiple Airlines Logo
8:24 pm - 11:15 pm
SAT
-
ORD
26h 51m
1 stop
Multiple Airlines Logo
8:16 pm - 9:30 am
ORD
-
SAT
13h 14m
1 stop
$204Multiple Airlines
Tue, Mar 31 - Sat, Apr 11
Frontier Logo
2:13 pm - 11:38 pm
SAT
-
ORD
9h 25m
1 stop
Frontier Logo
5:53 pm - 12:19 am
ORD
-
SAT
6h 26m
1 stop
$205Frontier
Wed, Feb 18 - Sun, Feb 22
Spirit Airlines Logo
10:26 am - 11:22 am
SAT
-
ORD
24h 56m
1 stop
Spirit Airlines Logo
5:15 am - 9:30 am
ORD
-
SAT
28h 15m
1 stop
$206Spirit Airlines
Tue, Apr 7 - Sun, Apr 12
Spirit Airlines Logo
10:27 am - 11:21 am
SAT
-
ORD
24h 54m
1 stop
Spirit Airlines Logo
8:41 pm - 9:32 am
ORD
-
SAT
12h 51m
1 stop
$207Spirit Airlines
Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
5:04 pm - 10:46 am
SAT
-
ORD
17h 42m
1 stop
Multiple Airlines Logo
8:59 am - 4:18 pm
ORD
-
SAT
31h 19m
2 stops
$209Multiple Airlines
Wed, Apr 1 - Thu, Apr 9
Spirit Airlines Logo
10:27 am - 6:21 pm
SAT
-
ORD
7h 54m
1 stop
Spirit Airlines Logo
8:41 pm - 9:32 am
ORD
-
SAT
12h 51m
1 stop
$210Spirit Airlines
Booking Insights

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

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

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

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

When flying from San Antonio to Chicago O'Hare Airport, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to San Antonio, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Chicago O'Hare Intl Airport, 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 San Antonio to Chicago O'Hare Intl Airport is September, where tickets cost $330 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $467 and $439 respectively.

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

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.

No, with an average price for the route of $360, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio to Chicago O'Hare Intl Airport, 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 San Antonio to Chicago O'Hare Intl Airport, you should book around 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

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

 
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
Stefanie Waldek

Stefanie Waldek

Expert on Qatar Airways, 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.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

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.

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 seasonJanuary
Cheapest flight$62
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from San Antonio to Chicago O'Hare Airport

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

Are your dates flexible? Find out the best times to travel from San Antonio to O'Hare Intl 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 San Antonio to Chicago O'Hare Airport flights

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

    In the last 3 days, the lowest price for a flight from San Antonio to Chicago O'Hare Intl Airport was $62 for a one-way ticket and $185 for a round-trip.

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

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

  • Which airports will I be using when flying from San Antonio to Chicago O'Hare Airport?

    When flying out of San Antonio you will be using San Antonio. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

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

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

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

    The Airbus A319 is the aircraft model that flies most regularly on the San Antonio to Chicago O'Hare Airport flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Antonio to Chicago are United Airlines and American Airlines. With an average price for the route of $435 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 $380 and an overall rating of 7.2.

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

    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 San Antonio to Chicago O'Hare Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from San Antonio 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 San Antonio to Chicago O'Hare Airport?

    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 Chicago O'Hare Airport with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and ORD 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 San Antonio to Chicago O'Hare Airport?

    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 Chicago O'Hare Airport from San Antonio 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 San Antonio to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $236 or less one-way and $430 or less round-trip.

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

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

Direct departures

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

Direct returns

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

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

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Chicago. 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 San Antonio to O'Hare Intl? 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 9215 reviews
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
Airline reviews

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

4.0 OkaySean, Jan 2026
BOS - ORD
Read more United Airlines reviews

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

Not seat assigned because overbooking. We could go because some people decided to give their seats.

The flights were very uncomfortable the seats don't have much leg room at all and they are pretty hard as well.

Our outgoing flight was cancelled two hours before boarding and Spirit was not able to get us onto another flight. Their customer service was slow and unhelpful.

spirit delayed my first flight 9 hours and then cancelled my flight back home. Very disappointed with their service.

Late taking off. ATC sent us circling around Chicago for almost an hour, after landing taxied for 40 minutes.

I waited for 4+ extra hours to even board when i was fighting off a cold. So i was sitting there in the airport with a fever and chills while spirit wasted my time. Then once on the plane we had at least an extra hour of taxiing before and after takeoff. Really poor airline, no amenities to speak of, and a lack of organization that will just ruin your experience.

Terrible. They cancelled the flight at the last minute after I had checked in at the airport and then told me they could only put me on a flight after 7 days. Pathetic.

Flight was on time. Friendly crew. Gate agents in the other hand were very unfriendly.

Bought round trip tickets. Ended up upgrading to first class. Both flights were new planes but hadn’t been equipped with WiFi and there were no charging ports at my seat despite it being new and first class accommodations.

Like: seats that don't move; fast boarding; engaging crew; low-prices; individual gate at LGA; access to restrooms at the gate Dislike: no water on the flight

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

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

Information on your arrival and departure airports