Cheap flights from San Antonio (SAT) to Illinois from $52
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 5/22. 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 10 — May 171
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 60% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $255 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $388.
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 2,795,183 searches. Data last updated May 5, 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
Sat 5/186:48 pmSAT - ORD
1 stop10h 12mFrontier
Tue 5/215:56 pmORD - SAT
1 stop17h 54mFrontier
Deal found 5/4$97
Sat 5/186:48 pmSAT - ORD
1 stop10h 12mFrontier
Tue 5/285:56 pmORD - SAT
1 stop17h 54mFrontier
Deal found 5/4$118
Wed 5/159:54 pmSAT - MDW
1 stop7h 56mFrontier
Thu 5/2310:22 pmMDW - SAT
1 stop10h 01mFrontier
Deal found 5/4$122
Fri 5/1010:59 pmSAT - ORD
1 stop25h 57mFrontier
Fri 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Deal found 5/3$137
Sat 6/83:02 pmSAT - MDW
1 stop20h 10mFrontier
Wed 6/125:55 amMDW - SAT
1 stop15h 38mFrontier
Deal found 5/3$138
Sat 5/256:48 pmSAT - ORD
1 stop10h 12mFrontier
Tue 5/285:56 pmORD - SAT
1 stop17h 54mFrontier
Deal found 5/3$139
Fri 5/1010:59 pmSAT - MDW
1 stop21h 40mFrontier
Fri 5/171:15 pmMDW - SAT
1 stop6h 48mFrontier
Deal found 5/3$147
Mon 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Thu 5/238:00 amORD - SAT
1 stop24h 23mFrontier
Deal found 5/4$149
Fri 5/1010:59 pmSAT - ORD
1 stop25h 57mFrontier
Thu 5/165:56 pmORD - SAT
1 stop26h 07mFrontier
Deal found 5/3$152
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 2,795,183 searches. Data last updated May 5, 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.
Wed 5/295:46 amSAT - ORD
1 stop10h 49mSpirit Airlines
Wed 6/55:45 pmORD - SAT
1 stop27h 38mSpirit Airlines
Deal found 5/3$103
Wed 5/295:46 amSAT - ORD
1 stop10h 49mSpirit Airlines
Wed 6/56:40 pmORD - SAT
1 stop26h 43mSpirit Airlines
Deal found 5/4$113
Wed 5/295:46 amSAT - ORD
1 stop10h 49mSpirit Airlines
Wed 5/296:40 pmORD - SAT
1 stop29h 41mSpirit Airlines
Deal found 5/3$114
Wed 5/295:46 amSAT - ORD
1 stop10h 49mSpirit Airlines
Wed 6/511:01 amORD - SAT
2 stops34h 22mSpirit Airlines
Deal found 5/3$115
Wed 5/295:46 amSAT - ORD
1 stop11h 54mSpirit Airlines
Thu 5/3010:58 amORD - SAT
1 stop13h 23mSpirit Airlines
Deal found 5/3$119
Wed 5/295:46 amSAT - ORD
1 stop11h 54mSpirit Airlines
Wed 6/511:01 amORD - SAT
2 stops12h 36mSpirit Airlines
Deal found 5/4$125
Wed 5/295:46 amSAT - ORD
1 stop10h 49mSpirit Airlines
Wed 5/296:40 pmORD - SAT
2 stops15h 56mSpirit Airlines
Deal found 5/3$126
Tue 5/286:45 amSAT - ORD
1 stop7h 27mSpirit Airlines
Wed 5/296:10 amORD - SAT
1 stop7h 31mSpirit Airlines
Deal found 5/3$130
Wed 5/156:39 pmSAT - ORD
1 stop11h 21mSpirit Airlines
Sat 5/186:10 amORD - SAT
1 stop10h 08mSpirit Airlines
Deal found 5/3$132
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 2,795,183 searches. Prices were last updated on May 5, 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.
Sat 5/186:48 pmSAT - STL
1 stop15h 25mMultiple Airlines
Sat 5/255:15 pmSTL - SAT
1 stop7h 06mMultiple Airlines
Deal found 5/4$150
Thu 5/2311:26 amSAT - STL
1 stop7h 14mMultiple Airlines
Tue 5/287:23 pmSTL - SAT
1 stop22h 25mMultiple Airlines
Deal found 5/4$183
Fri 5/246:30 pmSAT - STL
1 stop15h 58mSpirit Airlines
Tue 5/2810:34 amSTL - SAT
1 stop13h 47mSpirit Airlines
Deal found 5/5$187
Tue 5/1410:53 pmSAT - ORD
1 stop31h 07mSpirit Airlines
Wed 5/221:13 pmORD - SAT
1 stop8h 02mSpirit Airlines
Deal found 5/4$189
Sat 5/256:48 pmSAT - ORD
1 stop10h 12mMultiple Airlines
Mon 5/276:40 pmORD - SAT
1 stop29h 41mMultiple Airlines
Deal found 5/4$190
Mon 5/139:36 pmSAT - STL
1 stop12h 33mMultiple Airlines
Sat 5/185:15 pmSTL - SAT
1 stop7h 06mMultiple Airlines
Deal found 5/4$191
Wed 5/152:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Thu 5/237:35 amORD - SAT
2 stops27h 34mSpirit Airlines
Deal found 5/4$191
Sat 5/188:00 pmSAT - ORD
1 stop10h 40mSpirit Airlines
Tue 5/289:35 amORD - SAT
2 stops14h 46mSpirit Airlines
Deal found 5/4$192
Sat 5/255:10 pmSAT - ORD
3 stops20h 56mSpirit Airlines
Wed 5/296:40 pmORD - SAT
1 stop29h 41mSpirit Airlines
Deal found 5/4$193
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 2,795,183 searches. Data last updated May 5, 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.
Sat 5/186:48 pmSAT - STL
1 stop15h 25mMultiple Airlines
Sat 5/255:15 pmSTL - SAT
1 stop7h 06mMultiple Airlines
Deal found 5/4$150
Fri 8/169:19 amSAT - STL
1 stop24h 18mFrontier
Tue 8/2010:32 pmSTL - SAT
1 stop9h 47mFrontier
Deal found 5/4$152
Thu 5/2311:26 amSAT - STL
1 stop7h 14mMultiple Airlines
Tue 5/287:23 pmSTL - SAT
1 stop22h 25mMultiple Airlines
Deal found 5/4$183
Fri 5/246:30 pmSAT - STL
1 stop15h 58mSpirit Airlines
Tue 5/2810:34 amSTL - SAT
1 stop13h 47mSpirit Airlines
Deal found 5/5$187
Tue 5/1410:53 pmSAT - ORD
1 stop31h 07mSpirit Airlines
Wed 5/221:13 pmORD - SAT
1 stop8h 02mSpirit Airlines
Deal found 5/4$189
Sat 5/256:48 pmSAT - ORD
1 stop10h 12mMultiple Airlines
Mon 5/276:40 pmORD - SAT
1 stop29h 41mMultiple Airlines
Deal found 5/4$190
Mon 5/139:36 pmSAT - STL
1 stop12h 33mMultiple Airlines
Sat 5/185:15 pmSTL - SAT
1 stop7h 06mMultiple Airlines
Deal found 5/4$191
Wed 5/152:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Thu 5/237:35 amORD - SAT
2 stops27h 34mSpirit Airlines
Deal found 5/4$191
Sat 5/188:00 pmSAT - ORD
1 stop10h 40mSpirit Airlines
Tue 5/289:35 amORD - SAT
2 stops14h 46mSpirit Airlines
Deal found 5/4$192
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 2,795,183 searches. Data last updated May 5, 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
Wed 6/58:10 pmORD - SAT
Nonstop2h 44mAmerican Airlines
Deal found 5/4$333
Sat 5/257:00 amSAT - ORD
Nonstop2h 55mUnited Airlines
Wed 5/298:20 pmORD - SAT
Nonstop2h 52mUnited Airlines
Deal found 5/4$340
Fri 5/317:00 amSAT - ORD
Nonstop2h 55mUnited Airlines
Tue 6/48:15 pmORD - SAT
Nonstop2h 52mUnited Airlines
Deal found 5/3$348
Sat 6/16:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Sat 6/18:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Deal found 5/4$349
Wed 7/311:35 pmSAT - ORD
Nonstop2h 56mAmerican Airlines
Mon 8/58:29 pmORD - SAT
Nonstop2h 43mAmerican Airlines
Deal found 5/4$355
Thu 5/306:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Mon 6/38:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Deal found 5/4$362
Sat 6/86:01 amSAT - ORD
Nonstop2h 52mAmerican Airlines
Tue 6/118:10 pmORD - SAT
Nonstop2h 44mAmerican Airlines
Deal found 5/4$370
Sat 6/16:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Sat 6/88:10 pmORD - SAT
Nonstop2h 44mAmerican Airlines
Deal found 5/4$377
Thu 5/306:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Sun 6/28:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Deal found 5/4$381
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 2,795,183 searches. Data last updated May 5, 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 5/159:54 pmSAT - MDW
1 stop7h 56mFrontier
Thu 5/2310:22 pmMDW - SAT
1 stop10h 01mFrontier
Deal found 5/4$122
Wed 5/152:18 pmSAT - ORD
1 stop9h 25mMultiple Airlines
Sat 5/186:10 amORD - SAT
1 stop10h 08mMultiple Airlines
Deal found 5/4$133
Fri 5/1010:59 pmSAT - ORD
1 stop25h 57mFrontier
Fri 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Deal found 5/3$137
Tue 5/1410:53 pmSAT - ORD
1 stop13h 19mSpirit Airlines
Tue 5/286:40 pmORD - SAT
1 stop29h 41mSpirit Airlines
Deal found 5/4$141
Fri 5/1010:59 pmSAT - MDW
1 stop21h 40mFrontier
Fri 5/171:15 pmMDW - SAT
1 stop6h 48mFrontier
Deal found 5/3$147
Fri 5/1010:59 pmSAT - ORD
1 stop25h 57mFrontier
Thu 5/165:56 pmORD - SAT
1 stop26h 07mFrontier
Deal found 5/3$152
Wed 5/152:31 pmSAT - ORD
1 stop9h 21mMultiple Airlines
Thu 5/238:00 amORD - SAT
1 stop24h 23mMultiple Airlines
Deal found 5/4$154
Tue 5/1410:53 pmSAT - ORD
1 stop13h 19mSpirit Airlines
Tue 5/289:35 amORD - SAT
2 stops14h 46mSpirit Airlines
Deal found 5/4$155
Fri 5/1010:59 pmSAT - MDW
1 stop21h 40mFrontier
Thu 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
Deal found 5/3$163
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 2,795,183 searches. Data last updated May 5, 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.
Wed 5/222:31 pmSAT - ORD
1 stop9h 21mSpirit Airlines
Deal found 5/3$52
Tue 6/255:21 amSAT - ORD
1 stop11h 07mSpirit Airlines
Deal found 5/3$71
Tue 5/1410:25 amSAT - ORD
3 stops31h 15mSpirit Airlines
Deal found 5/4$72
Mon 5/134:47 pmSAT - ORD
1 stop6h 56mFrontier
Deal found 5/3$75
Wed 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/4$76
Tue 5/1410:25 amSAT - ORD
2 stops31h 15mSpirit Airlines
Deal found 5/4$76
Wed 6/58:34 pmSAT - MDW
1 stop12h 57mFrontier
Deal found 5/4$76
Fri 5/102:47 pmSAT - ORD
1 stop8h 56mFrontier
Deal found 5/3$79
Fri 5/1710:20 pmSAT - MDW
1 stop7h 30mFrontier
Deal found 5/4$79
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 2,795,183 searches. Data last updated May 5, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$97 - $256
Route
Depart
Return
Price
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Sat 5/18
1 stop10h 12m
Chicago O'Hare Intl
Tue 5/21
1 stop17h 54m
$97
San AntonioChicago Midway
SAT - MDW
SATMDW
San Antonio
Sat 5/18
1 stop20h 08m
Chicago Midway
Tue 5/21
1 stop26h 23m
$97
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Wed 5/29
1 stop10h 49m
Chicago O'Hare Intl
Wed 6/5
1 stop27h 38m
$103
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Wed 5/29
1 stop10h 49m
Chicago O'Hare Intl
Wed 6/5
1 stop26h 43m
$113
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Wed 5/29
1 stop10h 49m
Chicago O'Hare Intl
Wed 5/29
1 stop29h 41m
$114
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Sat 5/18
1 stop10h 12m
Chicago O'Hare Intl
Tue 5/28
1 stop17h 54m
$118
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Wed 5/15
1 stop9h 25m
Chicago O'Hare Intl
Sat 5/18
1 stop10h 08m
$133
San AntonioChicago O'Hare Intl
SAT - ORD
SATORD
San Antonio
Sat 5/25
1 stop10h 12m
Chicago O'Hare Intl
Wed 5/29
1 stop29h 41m
$134
San AntonioChampaign University-Willard
SAT - CMI
SATCMI
San Antonio
Wed 5/29
1 stop6h 18m
Champaign University-Willard
Thu 5/30
1 stop7h 06m
$256
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 5, 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.
9,137 reviews
Crew
8.6
Comfort
7.9
Entertainment
7.3
Boarding
8.2
Overall
8.1
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,137 reviews
9,137 reviews
Crew
8.6
Comfort
7.9
Entertainment
7.3
Boarding
8.2
Overall
8.1
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,826 reviews
9,137 reviews
Crew
8.6
Comfort
7.9
Entertainment
7.3
Boarding
8.2
Overall
8.1
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
11,118 reviews
9,137 reviews
Crew
8.6
Comfort
7.9
Entertainment
7.3
Boarding
8.2
Overall
8.1
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,713 reviews
9,137 reviews
Crew
8.6
Comfort
7.9
Entertainment
7.3
Boarding
8.2
Overall
8.1
Food
7.3
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
647 reviews
9,137 reviews
Crew
8.6
Comfort
7.9
Entertainment
7.3
Boarding
8.2
Overall
8.1
Food
7.3
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 2,795,183 searches. Data last updated May 5, 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 5, 2024.
| 28%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 30%of flight departures | Morning6 am to noon |
| 42%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?
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Why should you use Cheapflights to find cheap flight tickets from San Antonio to Illinois?
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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!