Cheap flights from Illinois to San Antonio (SAT) from $55
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 5/14. 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.
ORD — SAT
Apr 29 — May 61
From?
To?
1 adult, Economy
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How far in advance should I book a flight from Illinois to San Antonio?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 40% on flights from Illinois to San Antonio compared to booking the week you need them. Waiting 58 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $405. For sooner than that we have options available in the next 3 days from $405.
What is the cheapest month to fly from Illinois to San Antonio?
September can be a great time to fly to San Antonio from Illinois with a flight ticket averaging about $361. Cheapflights users have found deals in the month of September for as cheap as $158. The most expensive prices can be found in the month of March.
When is the cheapest time to fly from Illinois to San Antonio (IL - SAT)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to San Antonio as you normally would.
Cheap Frontier flights from Illinois to San Antonio
Explore cheap flight options specifically provided by Frontier for the route between Illinois and San Antonio. 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 3,073,952 searches. Data last updated April 24, 2024.
Find some of the cheapest Frontier flights traveling from Illinois to San Antonio. Make sure to check back often as deals are often changing.
Thu 5/165:56 pmORD - SAT
1 stop26h 07mFrontier
Mon 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Deal found 4/23$97
Thu 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
Mon 5/208:00 pmSAT - STL
1 stop11h 08mFrontier
Deal found 4/23$98
Fri 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Mon 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Deal found 4/23$107
Tue 5/146:27 pmORD - SAT
1 stop16h 55mFrontier
Sat 5/186:48 pmSAT - ORD
1 stop10h 12mFrontier
Deal found 4/23$108
Thu 5/165:56 pmORD - SAT
1 stop26h 07mFrontier
Wed 5/229:23 amSAT - ORD
1 stop15h 50mFrontier
Deal found 4/23$112
Fri 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Sat 5/186:48 pmSAT - ORD
1 stop10h 12mFrontier
Deal found 4/23$113
Fri 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Mon 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Deal found 4/24$118
Thu 5/165:01 amMDW - SAT
1 stop27h 22mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$119
Fri 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Wed 5/2212:50 pmSAT - ORD
1 stop12h 18mFrontier
Deal found 4/23$122
Cheap American Airlines flights from Illinois to San Antonio
Explore cheap flight options specifically provided by American Airlines for the route between Illinois and San Antonio. 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 3,073,952 searches. Data last updated April 24, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Illinois to San Antonio. Make sure to examine the flight information before completing your reservation.
Wed 9/184:31 pmMLI - SAT
1 stop5h 45mAmerican Airlines
Tue 9/246:21 amSAT - MLI
1 stop4h 34mAmerican Airlines
Deal found 4/23$194
Wed 5/2911:38 amPIA - SAT
2 stops6h 58mAmerican Airlines
Tue 6/46:25 amSAT - PIA
1 stop4h 38mAmerican Airlines
Deal found 4/23$201
Wed 10/92:38 pmSTL - SAT
1 stop5h 17mAmerican Airlines
Tue 10/155:14 amSAT - STL
1 stop3h 46mAmerican Airlines
Deal found 4/23$252
Fri 5/1710:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
Fri 5/319:45 amSAT - ORD
1 stop9h 36mAmerican Airlines
Deal found 4/23$310
Wed 7/179:50 amORD - SAT
Nonstop2h 55mAmerican Airlines
Wed 7/246:00 amSAT - ORD
Nonstop2h 55mAmerican Airlines
Deal found 4/23$323
Fri 5/248:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Sun 5/2612:31 pmSAT - ORD
1 stop8h 14mAmerican Airlines
Deal found 4/23$327
Sun 5/197:00 amBMI - SAT
1 stop4h 41mAmerican Airlines
Wed 5/226:25 amSAT - BMI
1 stop4h 37mAmerican Airlines
Deal found 4/23$348
Wed 5/13:30 pmCMI - SAT
1 stop5h 11mAmerican Airlines
Sat 5/46:25 amSAT - CMI
2 stops9h 31mAmerican Airlines
Deal found 4/23$351
Wed 5/14:36 pmCMI - SAT
2 stops7h 44mAmerican Airlines
Sat 5/46:25 amSAT - CMI
2 stops9h 31mAmerican Airlines
Deal found 4/23$356
Cheap Illinois to San Antonio flights in April & May 2024
Find cheap flight options from Illinois to San Antonio specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Prices were last updated on April 24, 2024.
These are some of the most attractive deals on flights from Illinois to San Antonio in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
Mon 5/208:00 pmSAT - STL
1 stop11h 08mFrontier
Deal found 4/23$98
Fri 5/171:15 pmMDW - SAT
1 stop6h 48mFrontier
Sat 5/186:48 pmSAT - MDW
1 stop11h 02mFrontier
Deal found 4/23$108
Tue 5/74:50 pmSTL - SAT
1 stop18h 32mFrontier
Fri 5/1010:59 pmSAT - STL
1 stop10h 48mFrontier
Deal found 4/23$108
Thu 5/165:01 amMDW - SAT
1 stop27h 22mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$119
Fri 5/171:15 pmMDW - SAT
1 stop6h 48mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$129
Tue 5/1410:55 pmMDW - SAT
1 stop12h 27mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$130
Sun 5/195:01 amMDW - SAT
1 stop27h 22mFrontier
Wed 5/2212:50 pmSAT - MDW
1 stop18h 04mFrontier
Deal found 4/23$141
Sun 5/1910:49 pmMDW - SAT
1 stop9h 34mFrontier
Wed 5/2212:50 pmSAT - MDW
1 stop18h 04mFrontier
Deal found 4/23$147
Fri 5/105:30 amMDW - SAT
1 stop26h 50mFrontier
Mon 5/139:36 pmSAT - MDW
1 stop14h 00mFrontier
Deal found 4/23$154
Illinois to San Antonio 2024 flight deals
Discover exclusive flight deals for travel between Illinois and San Antonio in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
These are some of the most attractive deals on flights from Illinois to San Antonio in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
Mon 5/208:00 pmSAT - STL
1 stop11h 08mFrontier
Deal found 4/23$98
Fri 5/171:15 pmMDW - SAT
1 stop6h 48mFrontier
Sat 5/186:48 pmSAT - MDW
1 stop11h 02mFrontier
Deal found 4/23$108
Tue 5/74:50 pmSTL - SAT
1 stop18h 32mFrontier
Fri 5/1010:59 pmSAT - STL
1 stop10h 48mFrontier
Deal found 4/23$108
Thu 5/165:01 amMDW - SAT
1 stop27h 22mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$119
Fri 5/171:15 pmMDW - SAT
1 stop6h 48mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$129
Tue 5/1410:55 pmMDW - SAT
1 stop12h 27mFrontier
Mon 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/23$130
Sun 5/195:01 amMDW - SAT
1 stop27h 22mFrontier
Wed 5/2212:50 pmSAT - MDW
1 stop18h 04mFrontier
Deal found 4/23$141
Sun 5/1910:49 pmMDW - SAT
1 stop9h 34mFrontier
Wed 5/2212:50 pmSAT - MDW
1 stop18h 04mFrontier
Deal found 4/23$147
Fri 5/105:30 amMDW - SAT
1 stop26h 50mFrontier
Mon 5/139:36 pmSAT - MDW
1 stop14h 00mFrontier
Deal found 4/23$154
Non-stop flights to San Antonio from Illinois
Discover non-stop flight options from Illinois to San Antonio. 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 3,073,952 searches. Data last updated April 24, 2024.
Take a look at some of the direct flights traveling from Illinois to San Antonio in the near future. Search for alternative flights from Illinois to San Antonio by utilizing the search form above.
Wed 7/179:50 amORD - SAT
Nonstop2h 55mAmerican Airlines
Wed 7/246:00 amSAT - ORD
Nonstop2h 55mAmerican Airlines
Deal found 4/23$323
Wed 5/1510:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
Sat 5/182:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/23$330
Tue 6/258:10 pmORD - SAT
Nonstop2h 44mAmerican Airlines
Tue 7/26:01 amSAT - ORD
Nonstop2h 52mAmerican Airlines
Deal found 4/23$340
Fri 5/318:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Tue 6/46:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/23$343
Fri 5/108:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Tue 5/146:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/23$349
Sat 5/188:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Mon 5/206:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/23$350
Sat 5/118:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Sat 5/182:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/24$356
Sun 5/198:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
Wed 5/226:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/23$360
Fri 5/1710:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
Fri 5/312:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/23$363
Illinois to San Antonio flights leaving soon
Find last-minute flight options from Illinois to San Antonio 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 3,073,952 searches. Data last updated April 24, 2024.
Users seeking a last-minute flight from Illinois to San Antonio should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 4/3010:55 pmMDW - SAT
1 stop12h 27mFrontier
Wed 5/19:54 pmSAT - MDW
1 stop13h 42mFrontier
Deal found 4/23$158
Sat 5/47:51 pmSTL - SAT
1 stop15h 05mFrontier
Mon 5/69:36 pmSAT - STL
1 stop12h 42mFrontier
Deal found 4/23$184
Fri 5/35:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/69:36 pmSAT - STL
1 stop12h 42mFrontier
Deal found 4/23$193
Fri 5/35:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/69:36 pmSAT - STL
1 stop12h 42mFrontier
Deal found 4/23$197
Thu 5/26:27 pmORD - SAT
1 stop27h 32mMultiple Airlines
Tue 5/710:53 pmSAT - ORD
1 stop13h 19mMultiple Airlines
Deal found 4/22$206
Fri 5/35:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 8/59:19 amSAT - STL
1 stop26h 31mFrontier
Deal found 4/23$223
Mon 4/298:25 amORD - SAT
1 stop10h 41mFrontier
Mon 5/64:47 pmSAT - ORD
1 stop6h 56mFrontier
Deal found 4/24$248
Fri 5/36:27 pmORD - SAT
1 stop13h 53mMultiple Airlines
Sun 5/55:47 amSAT - ORD
1 stop27h 31mMultiple Airlines
Deal found 4/23$249
Wed 5/110:38 amORD - SAT
1 stop14h 04mSpirit Airlines
Tue 5/710:53 pmSAT - ORD
1 stop13h 19mSpirit Airlines
Deal found 4/22$255
One-way flights to San Antonio from Illinois
Search for one-way flight options from Illinois to San Antonio. 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 3,073,952 searches. Data last updated April 24, 2024.
If you're seeking multiple options on one-way flights from Illinois to San Antonio, be sure to check out these deals, which are updated often. Users needing a return flight from Illinois to San Antonio should utilize the search form above.
Tue 5/1410:55 pmMDW - SAT
1 stop12h 27mFrontier
Deal found 4/23$55
Thu 5/95:56 pmMDW - SAT
1 stop20h 01mFrontier
Deal found 4/23$59
Mon 4/298:25 amORD - SAT
1 stop10h 41mFrontier
Deal found 4/23$90
Fri 9/207:29 pmSTL - SAT
1 stop22h 15mFrontier
Deal found 4/23$90
Tue 7/305:51 amMDW - SAT
1 stop26h 28mFrontier
Deal found 4/22$91
Tue 5/145:36 pmORD - SAT
2 stops26h 22mSpirit Airlines
Deal found 4/23$94
Sat 5/256:40 pmORD - SAT
1 stop29h 40mSpirit Airlines
Deal found 4/23$95
Tue 5/710:55 pmMDW - SAT
1 stop12h 27mFrontier
Deal found 4/24$95
Sat 5/254:12 pmMLI - SAT
1 stop8h 02mAmerican Airlines
Deal found 4/23$97
Find flights from Illinois to San Antonio within your budget
Customize your flight search to find flights from Illinois to San Antonio 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 3,073,952 searches. Data last updated April 24, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$97 - $254
Route
Depart
Return
Price
Chicago O'Hare IntlSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Thu 5/16
1 stop26h 07m
San Antonio
Mon 5/20
1 stop29h 08m
$97
Chicago MidwaySan Antonio
MDW - SAT
MDWSAT
Chicago Midway
Sat 5/11
1 stop11h 57m
San Antonio
Sat 5/18
1 stop11h 53m
$97
Lambert-St LouisSan Antonio
STL - SAT
STLSAT
Lambert-St Louis
Thu 5/16
1 stop9h 17m
San Antonio
Mon 5/20
1 stop11h 08m
$98
Chicago O'Hare IntlSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Fri 5/17
1 stop15h 50m
San Antonio
Mon 5/20
1 stop29h 08m
$107
Chicago O'Hare IntlSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Thu 5/16
1 stop26h 07m
San Antonio
Tue 5/21
1 stop11h 54m
$117
Chicago O'Hare IntlSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Fri 5/17
1 stop15h 50m
San Antonio
Tue 5/21
1 stop11h 54m
$127
Chicago O'Hare IntlSan Antonio
ORD - SAT
ORDSAT
Chicago O'Hare Intl
Sat 5/18
2 stops16h 51m
San Antonio
Tue 5/21
1 stop10h 49m
$148
Moline Quad-CitySan Antonio
MLI - SAT
MLISAT
Moline Quad-City
Wed 9/18
1 stop5h 45m
San Antonio
Tue 9/24
1 stop4h 34m
$194
Lambert-St LouisSan Antonio
STL - SAT
STLSAT
Lambert-St Louis
Tue 6/11
1 stop7h 11m
San Antonio
Tue 6/18
1 stop5h 33m
$254
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated April 24, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and United Airlines from Illinois to San Antonio. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
11,004 reviews
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Crew
8.6
Food
7.5
Reviews
1 / 10
Terrible flight crew that skipped our row for service multiple times.
11,004 reviews
11,004 reviews
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Crew
8.6
Food
7.5
Reviews
1 / 10
Terrible flight crew that skipped our row for service multiple times.
11,272 reviews
11,004 reviews
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Crew
8.6
Food
7.5
Reviews
1 / 10
Terrible flight crew that skipped our row for service multiple times.
14,898 reviews
11,004 reviews
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Crew
8.6
Food
7.5
Reviews
1 / 10
Terrible flight crew that skipped our row for service multiple times.
663 reviews
11,004 reviews
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Crew
8.6
Food
7.5
Reviews
1 / 10
Terrible flight crew that skipped our row for service multiple times.
Related info for your journey
Find useful and relevant information for your journey from Illinois to San Antonio. 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 Illinois to San AntonioSee 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 Illinois to San Antonio
Discover the top 5 airlines that operate flights from Illinois to San Antonio. 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 3,073,952 searches. Data last updated April 24, 2024.
Search flights from Illinois to San Antonio by cabin class
Find flights from Illinois to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Illinois to San Antonio
Find hourly flight availability from Illinois to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 27%of flight departures | Morning6 am to noon |
| 0%of flight departures | AfternoonNoon to 6 pm |
| 72%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 Illinois to San Antonio?
Deals for Illinois to San Antonio flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Illinois to San Antonio?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois to San Antonio for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Illinois to San Antonio with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois to San Antonio, users can toggle the no change fees filter when performing a flight search.
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Not ready to book yet? You can track prices for flights from Illinois to San Antonio on Cheapflights with our Price Alert feature and get notified when better prices are available.