SAT - ORD

$98 Find Cheap Flights from San Antonio to Chicago O'Hare Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$319
Typical prices: $331-$518
Frontier
Tue 12/4Thu 12/6
SAT - ORD • 2 stops
Cheapest non-stop
$323
Typical prices: $347-$529
American Airlines
Tue 12/18Sun 12/23
SAT - ORD • Non-stop
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 3h 02m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $181 (round-trip)
Shortest trip • 5h 51m (one-way)
Insights
Insights
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We hope you love your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
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, Dec 4 - Sun, Dec 6
Frontier Logo
9:56 pm - 12:54 amSAT  San Antonio-ORD Chicago O'Hare Intl
26h 58m2 stops Las Vegas Harry Reid Intl Denver Intl
Frontier Logo
8:53 pm - 8:02 pmORD  Chicago O'Hare Intl-SAT San Antonio
23h 09m2 stops Dallas/Fort Worth Denver Intl
$319Frontier
Fri, Nov 13 - Mon, Nov 16
Frontier Logo
10:29 pm - 6:30 pmSAT  San Antonio-ORD Chicago O'Hare Intl
20h 01m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
Frontier Logo
7:50 pm - 7:25 pmORD  Chicago O'Hare Intl-SAT San Antonio
23h 35m2 stops Atlanta Hartsfield-Jackson Denver Intl
$320Frontier
Wed, Nov 18 - Mon, Nov 23
American Airlines Logo
6:40 pm - 9:53 pmSAT  San Antonio-ORD Chicago O'Hare Intl
3h 13mnonstop
American Airlines Logo
12:02 pm - 4:52 pmORD  Chicago O'Hare Intl-SAT San Antonio
4h 50m1 stop Dallas/Fort Worth
$321American Airlines
Thu, Nov 12 - Mon, Nov 16
Frontier Logo
10:29 pm - 12:21 amSAT  San Antonio-ORD Chicago O'Hare Intl
25h 52m2 stops Las Vegas Harry Reid Intl Denver Intl
Frontier Logo
5:15 pm - 7:25 pmORD  Chicago O'Hare Intl-SAT San Antonio
26h 10m2 stops Las Vegas Harry Reid Intl Denver Intl
$321Frontier
Mon, Dec 7 - Thu, Dec 17
American Airlines Logo
7:07 pm - 11:59 pmSAT  San Antonio-ORD Chicago O'Hare Intl
4h 52m1 stop Dallas/Fort Worth
American Airlines Logo
2:30 pm - 5:46 pmORD  Chicago O'Hare Intl-SAT San Antonio
3h 16mnonstop
$323American Airlines
Mon, Nov 23 - Fri, Dec 4
United Airlines Logo
6:34 am - 9:33 amSAT  San Antonio-ORD Chicago O'Hare Intl
2h 59mnonstop
United Airlines Logo
5:52 pm - 11:04 pmORD  Chicago O'Hare Intl-SAT San Antonio
5h 12m1 stop Houston George Bush Intcntl
$323United Airlines
Fri, Nov 13 - Mon, Nov 16
American Airlines Logo
5:47 pm - 11:15 pmSAT  San Antonio-ORD Chicago O'Hare Intl
5h 28m1 stop Dallas/Fort Worth
American Airlines Logo
8:53 pm - 11:55 pmORD  Chicago O'Hare Intl-SAT San Antonio
3h 02mnonstop
$323American Airlines
Mon, Dec 21 - Fri, Dec 25
United Airlines Logo
7:08 pm - 12:44 amSAT  San Antonio-ORD Chicago O'Hare Intl
5h 36m1 stop Houston George Bush Intcntl
United Airlines Logo
7:45 pm - 10:59 pmORD  Chicago O'Hare Intl-SAT San Antonio
3h 14mnonstop
$324United Airlines
Fri, Jan 15 - Sat, Jan 16
Delta Logo
5:20 am - 12:37 pmSAT  San Antonio-ORD Chicago O'Hare Intl
7h 17m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:10 am - 5:18 pmORD  Chicago O'Hare Intl-SAT San Antonio
6h 08m1 stop Atlanta Hartsfield-Jackson
$333Delta
Fri, Jan 15 - Mon, Jan 18
Delta Logo
5:20 am - 12:37 pmSAT  San Antonio-ORD Chicago O'Hare Intl
7h 17m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:00 pm - 12:28 amORD  Chicago O'Hare Intl-SAT San Antonio
5h 28m1 stop Atlanta Hartsfield-Jackson
$333Delta
Booking Insights

Price, demand and travel trends for San Antonio to Chicago O'Hare Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from San Antonio to Chicago O'Hare Intl Airport typically range from $331 to $518. The lowest price found in the past 5 days was $319, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from San Antonio to Chicago O'Hare Intl Airport. It’s 7% cheaper than the average day, while Sunday is the most expensive, with prices 9% higher.

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

•February is the cheapest month to fly from San Antonio to Chicago O'Hare Intl Airport at $352 round-trip.
•November ($427) and June ($427) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 21% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from San Antonio to Chicago O'Hare Intl Airport the cheapest?

Flights from San Antonio to Chicago O'Hare Intl Airport are cheapest 5 weeks before departure. Booking in this window typically costs about 49% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

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

 
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.

Key details for San Antonio to Chicago O'Hare Intl Airport flights

Low season

February

Cheapest flight

$98
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 59% increase in travelers.
One-way flight from San Antonio to Chicago O'Hare Intl 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

Your San Antonio to Chicago O'Hare Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from San Antonio to Chicago O'Hare Intl Airport?

    These are the earliest and latest flight times available from San Antonio to Chicago O'Hare Intl Airport:

    • Earliest: departs at 5:49 am and lands at 8:51 am
    • Latest: departs at 7:09 pm and lands at 10:11 pm.

    The flight takes about 3h 02m.

  • What cabin classes can I book on flights from San Antonio to Chicago O'Hare Intl Airport?

    Three cabin classes are available on flights from San Antonio to Chicago O'Hare Intl Airport:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from San Antonio to Chicago O'Hare Intl Airport?

    A nonstop flight from San Antonio to Chicago O'Hare Intl Airport takes 3h 02m, covering 1,042 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a San Antonio to Chicago O'Hare Intl Airport flight?

    Round-trip flights from San Antonio to Chicago O'Hare Intl Airport range from $331 to $518, with an average of $394 over the past 12 months. Anything below $331 counts as a good deal.

  • How expensive are last-minute San Antonio to Chicago O'Hare Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 79% above the $394 route average. Book 5 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from San Antonio to Chicago O'Hare Intl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $181 round-trip via Orlando (MCO), compared to $406 for nonstop.

  • What is the standard checked-bag allowance on flights from San Antonio to Chicago O'Hare Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from San Antonio to Chicago O'Hare Intl Airport?

    The Airbus A319 family is used most often on this route, operated mainly by American Airlines and United Airlines. Other aircraft seen on the route include Embraer 175 variants.

  • How are flight departures from San Antonio to Chicago O'Hare Intl Airport spread across the day?

    Morning is the busiest departure period on San Antonio to Chicago O'Hare Intl Airport flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

  • Have flight prices from San Antonio to Chicago O'Hare Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $319 to $2,152. That means the highest observed fare was about 7x higher than the lowest one.

  • Which airlines offer Wi-Fi on San Antonio to Chicago O'Hare Intl Airport flights?

    Two airlines offer in-flight Wi-Fi on San Antonio to Chicago O'Hare Intl Airport flights:

    • American Airlines
    • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from San Antonio to Chicago O'Hare Intl Airport looking right now?

    One-way fares from San Antonio to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $127, which is 51% below the typical average for this route.

  • What car rental options are available at Chicago O'Hare Intl Airport (ORD)?

    Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Ace
    • Dollar

  • Which airports can I use when flying from San Antonio to Chicago O'Hare Intl Airport?

    Flights from San Antonio to Chicago O'Hare Intl Airport usually depart from San Antonio (SAT) and arrive at Chicago O'Hare Intl (ORD).

  • Which airports do connecting flights from San Antonio to Chicago O'Hare Intl Airport pass through?

    One-stop flights from San Antonio to Chicago O'Hare Intl Airport most commonly connect through:

    • Denver Intl (DEN) - 37% of one-stop connections
    • Fort Lauderdale (FLL) - 25% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 21% of one-stop connections
    • Dallas/Fort Worth (DFW) - 8% of one-stop connections

  • Can I save money by using flexible dates for flights from San Antonio to Chicago O'Hare Intl Airport?

    Yes. Flexible dates can save you up to 16% on flights from San Antonio to Chicago O'Hare Intl Airport. Saturday is the cheapest departure day at $367 round-trip on average, while Sunday is the most expensive at $432, a difference of $65.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from San Antonio to Chicago O'Hare Intl Airport?

    2 airlines operate flights between San Antonio and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

    • American Airlines
    • United Airlines

  • How much time can I save by choosing a different layover airport from San Antonio to Chicago O'Hare Intl Airport?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 5h 51m, compared with 5h 51m via Detroit Metropolitan Wayne County (DTW) and 11h 37m via Las Vegas Harry Reid Intl (LAS).

  • What popular places can I visit in Chicago O'Hare Intl Airport?

    Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and Soldier Field. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on San Antonio to Chicago O'Hare Intl Airport flights?

    Among airlines operating San Antonio to Chicago O'Hare Intl Airport flights:

    • American Airlines: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on San Antonio to Chicago O'Hare Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • American Airlines: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking San Antonio to Chicago O'Hare Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $367, about $65 less than Sunday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 49% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Antonio to Chicago O'Hare Intl Airport trip for February. Fares historically average $352 round-trip in that month - typically $75 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages $181 round-trip on this route - about $225 less than direct flights (based on the last 12 months).

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

 
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

More options for your flight from San Antonio to O'Hare Intl

Complete your trip to Chicago with a hotel stay or car rental