Cheap flights from San Antonio (SAT) to Illinois from $75
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 6/6. 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.
SAT — ORD
May 21 — May 281
From?
To?
1 adult, Economy
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How far in advance should I book a flight from San Antonio to Illinois?
To save on the cost of your flight from San Antonio to Illinois, book at least 57 days before your planned departure. Booking around this time can save you about 6% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $257 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $257.
What is the cheapest month to fly from San Antonio to Illinois?
Flights from San Antonio to Illinois lean towards being more expensive in March. Prices are generally better when you fly from San Antonio to Illinois in January, with the cheapest ticket starting at $151.
When is the cheapest time to fly from San Antonio to Illinois (SAT - IL)?
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.
Cheap Frontier flights from San Antonio to Illinois
Explore cheap flight options specifically provided by Frontier for the route between San Antonio and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 16, 2024.
Find some of the cheapest Frontier flights traveling from San Antonio to Illinois. Deals update often to give you more flight options matching your criteria
Wed 5/296:48 pmSAT - MDW
1 stop11h 02mFrontier
Tue 6/49:10 pmMDW - SAT
1 stop21h 00mFrontier
Deal found 5/14$143
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mFrontier
Wed 6/59:53 pmORD - SAT
1 stop21h 15mFrontier
Deal found 5/15$149
Sat 6/226:27 pmSAT - MDW
1 stop10h 54mFrontier
Wed 6/265:55 amMDW - SAT
1 stop15h 38mFrontier
Deal found 5/15$151
Tue 8/206:40 pmSAT - MDW
1 stop11h 53mFrontier
Tue 8/2710:00 pmMDW - SAT
1 stop19h 44mFrontier
Deal found 5/15$153
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mFrontier
Sun 6/27:59 pmORD - SAT
1 stop24h 51mFrontier
Deal found 5/14$154
Fri 5/318:53 pmSAT - ORD
1 stop28h 05mFrontier
Tue 6/47:59 pmORD - SAT
1 stop22h 11mFrontier
Deal found 5/15$156
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mFrontier
Thu 6/68:23 pmORD - SAT
1 stop18h 53mFrontier
Deal found 5/15$157
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mFrontier
Wed 6/58:23 pmORD - SAT
1 stop24h 21mFrontier
Deal found 5/14$158
Thu 8/156:40 pmSAT - ORD
1 stop10h 07mFrontier
Mon 8/197:30 pmORD - SAT
1 stop22h 14mFrontier
Deal found 5/14$159
Cheap Spirit Airlines flights from San Antonio to Illinois
Explore cheap flight options specifically provided by Spirit Airlines for the route between San Antonio and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 16, 2024.
To aid your search, here are some of the cheapest Spirit Airlines flights we've found from San Antonio to Illinois. Deals are refreshing constantly so come back soon for more options.
Tue 9/105:50 amSAT - ORD
1 stop10h 50mSpirit Airlines
Tue 9/1710:33 amORD - SAT
1 stop13h 47mSpirit Airlines
Deal found 5/15$106
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/291:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$130
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/295:41 pmORD - SAT
2 stops16h 55mSpirit Airlines
Deal found 5/14$138
Tue 8/205:50 amSAT - ORD
1 stop10h 50mSpirit Airlines
Tue 8/275:35 pmORD - SAT
1 stop26h 48mSpirit Airlines
Deal found 5/15$139
Wed 5/296:45 amSAT - ORD
1 stop10h 11mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$140
Wed 5/296:45 amSAT - ORD
1 stop15h 10mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/15$142
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Tue 5/286:40 pmORD - SAT
1 stop29h 41mSpirit Airlines
Deal found 5/14$149
Tue 6/48:41 pmSAT - ORD
1 stop9h 55mSpirit Airlines
Wed 7/317:01 amORD - SAT
1 stop7h 44mSpirit Airlines
Deal found 5/14$155
Wed 5/298:59 pmSAT - ORD
2 stops19h 36mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$169
Cheap San Antonio to Illinois flights in May & June 2024
Find cheap flight options from San Antonio to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Prices were last updated on May 16, 2024.
These are some of the most attractive deals on flights from San Antonio to Illinois in 2024. Check back regularly for other flight deals.
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/291:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$130
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/295:41 pmORD - SAT
2 stops16h 55mSpirit Airlines
Deal found 5/14$138
Wed 5/296:45 amSAT - ORD
1 stop10h 11mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$140
Wed 5/296:45 amSAT - ORD
1 stop15h 10mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/15$142
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mMultiple Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mMultiple Airlines
Deal found 5/14$143
Wed 5/296:48 pmSAT - MDW
1 stop11h 02mFrontier
Tue 6/49:10 pmMDW - SAT
1 stop21h 00mFrontier
Deal found 5/14$143
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mMultiple Airlines
Tue 5/288:00 amORD - SAT
1 stop24h 23mMultiple Airlines
Deal found 5/14$147
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Tue 5/286:40 pmORD - SAT
1 stop29h 41mSpirit Airlines
Deal found 5/14$149
Wed 5/296:48 pmSAT - MDW
1 stop11h 02mFrontier
Wed 6/55:55 amMDW - SAT
1 stop15h 38mFrontier
Deal found 5/15$149
San Antonio to Illinois 2024 flight deals
Discover exclusive flight deals for travel between San Antonio and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 16, 2024.
These are some of the most attractive deals on flights from San Antonio to Illinois in 2024. Check back regularly for other flight deals.
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/291:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$130
Sat 9/285:50 amSAT - ORD
1 stop11h 37mSpirit Airlines
Tue 10/110:33 amORD - SAT
1 stop13h 47mSpirit Airlines
Deal found 5/14$131
Tue 9/105:50 amSAT - ORD
1 stop11h 37mSpirit Airlines
Mon 9/166:32 pmORD - SAT
1 stop29h 48mSpirit Airlines
Deal found 5/13$134
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/295:41 pmORD - SAT
2 stops16h 55mSpirit Airlines
Deal found 5/14$138
Wed 5/296:45 amSAT - ORD
1 stop10h 11mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$140
Wed 5/296:45 amSAT - ORD
1 stop15h 10mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/15$142
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mMultiple Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mMultiple Airlines
Deal found 5/14$143
Wed 5/296:48 pmSAT - MDW
1 stop11h 02mFrontier
Tue 6/49:10 pmMDW - SAT
1 stop21h 00mFrontier
Deal found 5/14$143
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mMultiple Airlines
Tue 5/288:00 amORD - SAT
1 stop24h 23mMultiple Airlines
Deal found 5/14$147
Non-stop flights to Illinois from San Antonio
Discover non-stop flight options from San Antonio to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 16, 2024.
Consider booking one of these non-stop flights heading from San Antonio to Illinois. Users seeking other options on flights from San Antonio to Illinois should update the search form at the top of the page.
Wed 5/296:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Mon 6/38:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Deal found 5/15$303
Wed 5/296:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Wed 6/59:45 amORD - SAT
Nonstop2h 52mAmerican Airlines
Deal found 5/15$318
Tue 6/42:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Wed 7/319:02 pmORD - SAT
Nonstop2h 40mAmerican Airlines
Deal found 5/14$326
Wed 6/56:01 amSAT - ORD
Nonstop2h 52mAmerican Airlines
Tue 6/118:10 pmORD - SAT
Nonstop2h 44mAmerican Airlines
Deal found 5/15$333
Wed 7/311:35 pmSAT - ORD
Nonstop2h 56mAmerican Airlines
Sat 8/39:02 pmORD - SAT
Nonstop2h 40mAmerican Airlines
Deal found 5/15$340
Tue 8/66:11 amSAT - ORD
Nonstop2h 54mAmerican Airlines
Tue 8/138:24 pmORD - SAT
Nonstop2h 52mAmerican Airlines
Deal found 5/14$347
Fri 5/312:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Sun 6/210:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
Deal found 5/14$348
Wed 6/266:01 amSAT - ORD
Nonstop2h 52mAmerican Airlines
Mon 7/18:10 pmORD - SAT
Nonstop2h 44mAmerican Airlines
Deal found 5/13$350
Thu 8/86:11 amSAT - ORD
Nonstop2h 54mAmerican Airlines
Tue 8/139:45 amORD - SAT
Nonstop2h 48mAmerican Airlines
Deal found 5/14$353
San Antonio to Illinois flights leaving soon
Find last-minute flight options from San Antonio to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 16, 2024.
Have a look at some of the flights available from San Antonio to Illinois departing last-minute. It's wise to confirm all flight details are correct before booking.
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/291:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$130
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Wed 5/295:41 pmORD - SAT
2 stops16h 55mSpirit Airlines
Deal found 5/14$138
Wed 5/296:45 amSAT - ORD
1 stop10h 11mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/14$140
Wed 5/296:45 amSAT - ORD
1 stop15h 10mSpirit Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mSpirit Airlines
Deal found 5/15$142
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mMultiple Airlines
Tue 6/41:13 pmORD - SAT
1 stop10h 30mMultiple Airlines
Deal found 5/14$143
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mMultiple Airlines
Tue 5/288:00 amORD - SAT
1 stop24h 23mMultiple Airlines
Deal found 5/14$147
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Tue 5/286:40 pmORD - SAT
1 stop29h 41mSpirit Airlines
Deal found 5/14$149
Wed 5/296:48 pmSAT - ORD
1 stop10h 12mFrontier
Sun 6/27:59 pmORD - SAT
1 stop24h 51mFrontier
Deal found 5/14$154
Tue 5/218:41 pmSAT - STL
1 stop14h 05mMultiple Airlines
Tue 5/2810:44 pmSTL - SAT
1 stop9h 39mMultiple Airlines
Deal found 5/14$157
One-way flights to Illinois from San Antonio
Search for one-way flight options from San Antonio to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 16, 2024.
Some of the best available deals we've found on one-way flights from San Antonio to Illinois. Users can also find round-trip San Antonio to Illinois flights by using the search form above.
Thu 6/69:34 pmSAT - ORD
1 stop8h 08mFrontier
Deal found 5/15$75
Thu 6/69:34 pmSAT - MDW
1 stop7h 40mFrontier
Deal found 5/15$75
Wed 6/58:34 pmSAT - MDW
1 stop12h 57mFrontier
Deal found 5/15$76
Tue 5/215:16 pmSAT - ORD
2 stops23h 19mSpirit Airlines
Deal found 5/14$77
Fri 6/219:10 pmSAT - MDW
1 stop8h 19mFrontier
Deal found 5/14$79
Wed 6/510:34 pmSAT - ORD
1 stop26h 06mFrontier
Deal found 5/15$80
Tue 6/118:31 pmSAT - ORD
1 stop10h 05mSpirit Airlines
Deal found 5/15$81
Sat 8/246:40 pmSAT - MDW
1 stop11h 53mFrontier
Deal found 5/15$81
Fri 5/3110:20 pmSAT - MDW
1 stop7h 30mFrontier
Deal found 5/15$83
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 2,632,958 searches. Data last updated May 16, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$106 - $268
Route
Depart
Return
Price
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Tue 9/10
1 stop10h 50m
Chicago O'Hare Intl
Tue 9/17
1 stop13h 47m
$106
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Tue 8/20
1 stop10h 50m
Chicago O'Hare Intl
Tue 8/27
1 stop26h 48m
$139
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Wed 5/29
1 stop10h 12m
Chicago O'Hare Intl
Tue 6/4
1 stop10h 30m
$143
San AntonioChicago Midway
SAT - MDW
SATMDW
San Antonio
Wed 5/29
1 stop11h 02m
Chicago Midway
Tue 6/4
1 stop21h 00m
$143
San AntonioLambert-St Louis
SAT - STL
SATSTL
San Antonio
Wed 9/4
1 stop15h 38m
Lambert-St Louis
Mon 9/9
1 stop22h 15m
$149
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Wed 6/5
1 stop26h 06m
Chicago O'Hare Intl
Tue 6/11
1 stop28h 57m
$152
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Thu 6/27
1 stop24h 46m
Chicago O'Hare Intl
Sun 6/30
1 stop11h 36m
$232
San AntonioMoline Quad-City
SAT - MLI
SATMLI
San Antonio
Wed 6/12
1 stop6h 48m
Moline Quad-City
Sat 6/15
1 stop4h 29m
$262
San AntonioBloomington-Normal
SAT - BMI
SATBMI
San Antonio
Sat 8/24
1 stop5h 05m
Bloomington-Normal
Tue 8/27
1 stop5h 00m
$268
No data available for this route at this time. Please check back soon.
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 May 16, 2024.
To help decide which airline to fly from San Antonio to Illinois, see what other customers have to say about Frontier, Spirit Airlines 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.
9,158 reviews
Boarding
8.2
Crew
8.6
Overall
8.1
Food
7.3
Entertainment
7.3
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,158 reviews
9,158 reviews
Boarding
8.2
Crew
8.6
Overall
8.1
Food
7.3
Entertainment
7.3
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,690 reviews
9,158 reviews
Boarding
8.2
Crew
8.6
Overall
8.1
Food
7.3
Entertainment
7.3
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,953 reviews
9,158 reviews
Boarding
8.2
Crew
8.6
Overall
8.1
Food
7.3
Entertainment
7.3
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,539 reviews
9,158 reviews
Boarding
8.2
Crew
8.6
Overall
8.1
Food
7.3
Entertainment
7.3
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
631 reviews
9,158 reviews
Boarding
8.2
Crew
8.6
Overall
8.1
Food
7.3
Entertainment
7.3
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
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.
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Alternative routes for San Antonio to IllinoisSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from San Antonio to Illinois
Discover the top 5 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 2,632,958 searches. Data last updated May 16, 2024.
Search flights from San Antonio to Illinois by cabin class
Find flights from San Antonio to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from San Antonio to Illinois
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 May 16, 2024.
| 26%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 21%of flight departures | Morning6 am to noon |
| 53%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from San Antonio to Illinois?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Antonio to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from San Antonio to Illinois?
Cheapflights simply makes it quick and affordable to book flights from San Antonio to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from San Antonio to Illinois with no change fees?
Need flexible booking options for your flight to Illinois from San Antonio? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!