Illinois

$60+ Cheap flights from San Antonio (SAT) to Illinois

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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Nov 25 — Dec 21
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Cheap flight deals from San Antonio to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Illinois (USIL). 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 November 20, 2024.

Find flight deals from San Antonio to Illinois

Cheapest flights from San Antonio to Illinois
Explore the most affordable flight options available from San Antonio to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This CheapOair deal was found by Cheapflights users on 11/19. 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.
Tue 12/1710:27 pmSAT - STL
1 stop9h 46mFrontier
Wed 12/183:53 pmSTL - SAT
1 stop25h 49mFrontier
Deal found 11/19$122
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/142:37 pmSAT - ORD
1 stop14h 53mMultiple Airlines
Tue 12/1711:24 amORD - SAT
1 stop28h 37mMultiple Airlines
Deal found 11/20$182
This Booking.com deal was found by Cheapflights users on 11/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1710:27 pmSAT - MDW
1 stop23h 05mFrontier
Tue 12/246:49 pmMDW - SAT
1 stop21h 12mFrontier
Deal found 11/19$188
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/161:14 pmSAT - ORD
2 stops28h 26mSpirit Airlines
Tue 12/179:10 pmORD - SAT
1 stop16h 02mSpirit Airlines
Deal found 11/19$212
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/137:37 pmSAT - STL
1 stop19h 44mMultiple Airlines
Mon 12/166:46 pmSTL - SAT
1 stop26h 41mMultiple Airlines
Deal found 11/19$216
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/1212:36 pmSAT - STL
1 stop3h 58mAmerican Airlines
Sun 12/155:05 amSTL - SAT
1 stop4h 36mAmerican Airlines
Deal found 11/19$228
This CheapOair deal was found by Cheapflights users on 11/18. 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.
Wed 12/259:34 pmSAT - ORD
1 stop22h 00mFrontier
Mon 12/3010:59 amORD - SAT
1 stop29h 25mFrontier
Deal found 11/18$232
This Delta deal was found by Cheapflights users on 11/20. 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.
Thu 12/126:31 pmSAT - STL
1 stop5h 12mDelta
Sun 12/156:00 amSTL - SAT
1 stop6h 10mDelta
Deal found 11/20$248
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Sat 12/143:37 pmSAT - MLI
1 stop6h 27mAmerican Airlines
Sun 12/156:34 pmMLI - SAT
1 stop5h 15mAmerican Airlines
Deal found 11/20$258
This eDestinos deal was found by Cheapflights users on 11/18. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:01 pmSAT - MDW
1 stop26h 41mMultiple Airlines
Wed 12/258:25 amMDW - SAT
2 stops15h 34mMultiple Airlines
Deal found 11/18$283
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/136:32 pmSAT - STL
2 stops20h 49mSpirit Airlines
Sun 12/154:26 pmSTL - SAT
2 stops17h 43mSpirit Airlines
Deal found 11/19$300
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Tue 12/175:15 amSAT - STL
2 stops7h 04mUnited Airlines
Wed 12/181:39 pmSTL - SAT
1 stop7h 16mUnited Airlines
Deal found 11/19$303

Find flights from San Antonio to Illinois within your budget

Customize your flight search to find flights from San Antonio to Illinois 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San AntonioSt. Louis

SAT - STL

SATSTL

San Antonio

Tue 12/17

10:27 pm-8:13 am

1 stop9h 46m

Lambert-St Louis

Wed 12/18

3:53 pm-5:42 pm

1 stop25h 49m

$122

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Sat 12/14

2:37 pm-5:30 am

1 stop14h 53m

Chicago O'Hare Intl

Tue 12/17

11:24 am-4:01 pm

1 stop28h 37m

$182

San AntonioChicago

SAT - MDW

SATMDW

San Antonio

Tue 12/17

10:27 pm-9:32 pm

1 stop23h 05m

Chicago Midway

Tue 12/24

6:49 pm-4:01 pm

1 stop21h 12m

$188

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Wed 1/8

2:07 pm-10:57 pm

1 stop8h 50m

Chicago O'Hare Intl

Sat 1/11

12:17 pm-7:11 pm

1 stop6h 54m

$212

San AntonioSt. Louis

SAT - STL

SATSTL

San Antonio

Fri 12/13

7:37 pm-3:21 pm

1 stop19h 44m

Lambert-St Louis

Mon 12/16

6:46 pm-9:27 pm

1 stop26h 41m

$216

San AntonioSt. Louis

SAT - STL

SATSTL

San Antonio

Tue 1/21

12:26 pm-7:30 pm

1 stop7h 04m

Lambert-St Louis

Fri 1/24

5:03 am-10:07 am

1 stop5h 04m

$218

San AntonioChicago

SAT - ORD

SATORD

San Antonio

Wed 12/25

9:34 pm-7:34 pm

1 stop22h 00m

Chicago O'Hare Intl

Mon 12/30

10:59 am-4:24 pm

1 stop29h 25m

$232

San AntonioSt. Louis

SAT - STL

SATSTL

San Antonio

Sun 1/12

7:00 am-11:47 am

1 stop4h 47m

Lambert-St Louis

Tue 1/14

6:00 am-11:46 am

1 stop5h 46m

$238

San AntonioMoline

SAT - MLI

SATMLI

San Antonio

Sat 2/8

6:00 am-10:53 am

1 stop4h 53m

Moline Quad-City

Sun 2/9

5:00 am-11:17 am

1 stop6h 17m

$258

San AntonioChicago

SAT - MDW

SATMDW

San Antonio

Wed 12/18

5:01 pm-7:42 pm

1 stop26h 41m

Chicago Midway

Wed 12/25

8:25 am-11:59 pm

2 stops15h 34m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 58 results
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Best time to book a flight from San Antonio to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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.

Travel insights for flights from San Antonio to Illinois

Get recent, data-driven insights about flights from San Antonio to Illinois including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from San Antonio to Illinois?

Currently, September is the cheapest month in which you can book a flight from San Antonio to Illinois (average of $232). Flying from San Antonio to Illinois in June is currently the most expensive (average of $308). 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 IL?

Find hourly flight availability from San Antonio to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from San Antonio to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Antonio to Illinois

Explore weekly flight availability from San Antonio to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from SAT to USIL are scheduled on a Wednesday (20 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois 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 Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 20, 2024.
To help decide which airline to fly from San Antonio to Illinois, see what other customers have to say about Spirit Airlines, Frontier and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.1
Very good
5,014 reviews
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.0
Very good
9,461 reviews
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.0
Very good
8,756 reviews
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.4
Good
9,171 reviews
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.2
Good
10,000 reviews
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Illinois. 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 Illinois?

    Located just 7.6 mi from the city center, San Antonio (SAT) is the airport most travelers will use when flying to Illinois from San Antonio.

  • What are the cheapest airlines to fly from San Antonio to Illinois one-way?

    $60 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $109 and $114, respectively.

  • What are the most popular routes from San Antonio to Illinois?

  • What are the most reliable airlines from San Antonio to Illinois?

    Before booking your flight to Illinois from San Antonio, check out the most reliable airlines to get you to your destination on time: Iberia (99%), Japan Airlines (98%), American Airlines( 98%).

  • What are the cheapest flights from San Antonio to Illinois?

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (San Antonio - Chicago O'Hare Intl) can be booked for $150 on average our data indicates $903 when flying from San Antonio to Illinois.

  • Can I find deals for flights from San Antonio to Illinois that include hotel bookings?

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

  • How can I find direct flights from San Antonio to Illinois?

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

  • Can I find deals for business class flights from San Antonio to Illinois?

    Yes. Cheapflights offers flight deals from San Antonio to Illinois 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 Illinois?

    Currently, September is the cheapest month in which you can book a flight from San Antonio to Illinois (average of $232). Flying from San Antonio to Illinois in June is currently the most expensive (average of $308). 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

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Alternative routes for San Antonio to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Antonio to Illinois

Discover the top 6 airlines that operate flights from San Antonio to Illinois. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$111Average$223FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$209FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$190Average$422FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$222Average$403FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$233Average$414FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$396FlexibilityNo cancel feeOn-timeN/A
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