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O'Hare Intl

$129+ Cheap flights from San Antonio (SAT) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Chicago O'Hare Intl are usually found in September or April, booked 69 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from San Antonio to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$194
(Cheapflightsfares)

One-way from

$129
(Frontier)

Popular in

December

Cheapest in

September

Average price

$442

Good round-trip deal

$430 or less

Good one-way deal

$246 or less
Provider with most accurate pricing for San Antonio-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Chicago O'Hare Intl flights.
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From San Antonio to Chicago O'Hare Intl
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One-way flight from San Antonio to Chicago O'Hare Intl
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Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from San Antonio to Chicago O'Hare Intl.
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Price to beat on a one-way flight from San Antonio to Chicago O'Hare Intl.
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Find flight deals from San Antonio to O'Hare Intl

Cheapest flights from San Antonio to O'Hare Intl
Explore the most affordable flight options available from San Antonio to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/810:51 pmSAT - ORD
1 stop12h 04mSpirit Airlines
Tue 5/136:30 amORD - SAT
1 stop6h 27mSpirit Airlines
Deal found 3/25$194
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:00 amSAT - ORD
Nonstop2h 55mUnited Airlines
Fri 5/21:01 pmORD - SAT
Nonstop3h 14mUnited Airlines
Deal found 3/25$217
This American Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:34 pmSAT - ORD
Nonstop2h 55mAmerican Airlines
Mon 5/128:47 pmORD - SAT
Nonstop3h 03mAmerican Airlines
Deal found 3/25$218
This Priceline deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/186:47 pmSAT - ORD
1 stop10h 21mMultiple Airlines
Sun 4/209:30 amORD - SAT
1 stop6h 38mMultiple Airlines
Deal found 3/25$220
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/197:00 amSAT - ORD
1 stop6h 42mDelta
Mon 4/215:05 pmORD - SAT
1 stop5h 35mDelta
Deal found 3/25$237
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/115:47 pmSAT - ORD
1 stop11h 21mFrontier
Sun 4/136:45 amORD - SAT
1 stop12h 16mFrontier
Deal found 3/25$240
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:40 amSAT - ORD
2 stops7h 20mSouthwest
Wed 5/214:00 pmORD - SAT
1 stop7h 15mSouthwest
Deal found 3/25$372

Cheapflights Fare Finder

Customize your flight search to find flights from San Antonio to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
Use the filters below to find and compare flights from San Antonio to Chicago O'Hare Intl Airport that are best for you.

Fly from

San Antonio

Fly to

O'Hare Intl

Route

Depart

Return

Price

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Thu 5/8

10:51 pm-10:55 am

1 stop12h 04m

Chicago O'Hare Intl

Tue 5/13

6:30 am-12:57 pm

1 stop6h 27m

$194

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Thu 4/24

7:00 am-9:55 am

Nonstop2h 55m

Chicago O'Hare Intl

Fri 5/2

1:01 pm-4:15 pm

Nonstop3h 14m

$217

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Thu 5/8

6:34 pm-9:29 pm

Nonstop2h 55m

Chicago O'Hare Intl

Mon 5/12

8:47 pm-11:50 pm

Nonstop3h 03m

$218

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Fri 4/18

6:47 pm-5:08 am

1 stop10h 21m

Chicago O'Hare Intl

Sun 4/20

9:30 am-4:08 pm

1 stop6h 38m

$220

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Sat 4/19

7:00 am-1:42 pm

1 stop6h 42m

Chicago O'Hare Intl

Mon 4/21

5:05 pm-10:40 pm

1 stop5h 35m

$237

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Fri 4/11

5:47 pm-5:08 am

1 stop11h 21m

Chicago O'Hare Intl

Sun 4/13

6:45 am-7:01 pm

1 stop12h 16m

$240

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Wed 5/21

7:40 am-3:00 pm

2 stops7h 20m

Chicago O'Hare Intl

Wed 5/21

4:00 pm-11:15 pm

1 stop7h 15m

$372

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Wed 5/28

6:30 am-11:59 pm

1 stop17h 29m

Chicago O'Hare Intl

Wed 6/4

7:00 am-6:28 pm

2 stops11h 28m

$639

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Thu 5/1

1:19 pm-9:26 pm

3 stops32h 07m

$130

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Wed 5/28

10:42 am-12:20 am

1 stop13h 38m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 17 results
1
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Compare providers for flights from San Antonio to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to O'Hare Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Antonio to Chicago O'Hare Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to Chicago O'Hare Intl Airport trip
Airports
SAT

For longer trips, the economy lots with shuttle service offer better value than the new parking garage at SAT.

Read more about SATby Ramsey Qubein
ORD

Consider taking the “L” train from downtown Chicago to ORD to avoid traffic delays common with taxis and rideshares.

Read more about ORDby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD and SAT

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from San Antonio to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to O'Hare Intl. Price data was last updated on March 21, 2025.

The price you pay for your flight from San Antonio to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $245). Flying from San Antonio to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to ORD?

Find hourly flight availability from San Antonio to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

When flying from San Antonio to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 75% versus a flight in the afternoon.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated March 26, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from San Antonio to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Antonio to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from San Antonio, you will be flying from San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio. There are 13 flights from San Antonio to Chicago O'Hare Intl per day from 4 different airlines.

  • What are the cheapest airlines flying from San Antonio to Chicago O'Hare Intl Airport round-trip?

    Currently priced at $194, Spirit Airlines will fly you from San Antonio to Chicago O'Hare Intl Airport and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $217 and $218, respectively. You may be able to fly from San Antonio to Chicago O'Hare Intl Airport for 52% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Antonio to Chicago O'Hare Intl Airport one-way?

    The cheapest airlines for a one-way flight from San Antonio to Chicago O'Hare Intl Airport are Frontier ($129), Spirit Airlines ($130), and United Airlines ($146).

  • What are the most reliable airlines from San Antonio to Chicago O'Hare Intl Airport?

    Consider Royal Jordanian (95%), Qatar Airways (93%) or Japan Airlines (92%) when booking your flight. These represent the most reliable airlines when flying from San Antonio to Chicago O'Hare Intl Airport.

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

    On average you can expect to pay $1,825 for a flight from San Antonio to Chicago O'Hare Intl Airport. The cheapest flight overall is $159 while the most popular route, (San Antonio - Chicago O'Hare Intl) is currently priced at $154.

  • Can I find deals for flights from San Antonio to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on San Antonio to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to O'Hare Intl.

  • Can I find deals for business class flights from San Antonio to O'Hare Intl?

    Yes. Cheapflights offers flight deals from San Antonio to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $245). Flying from San Antonio to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
Rosemont
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Lake Geneva

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Alternative routes for San Antonio to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from San Antonio to O'Hare Intl

Discover the top 4 airlines that operate flights from San Antonio to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$111Average$232FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$153FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$250Average$397FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$289Average$469FlexibilityNo cancel feeOn-time69%
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