Cheap flights from Illinois to San Antonio (SAT) from $48

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 5/29. 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
may. 1 — may. 81

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 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 3,068,117 searches. Data last updated abril 26, 2024.
Find some of the cheapest American Airlines flights traveling from Illinois to San Antonio. Make sure to check back often as deals are often changing.
mar. 5/214:12 pmMLI - SAT
1 stop8h 02mAmerican Airlines
mié. 5/2910:53 amSAT - MLI
1 stop4h 27mAmerican Airlines
Deal found 4/25$194
mié. 5/292:49 pmPIA - SAT
2 stops9h 05mAmerican Airlines
mar. 6/46:25 amSAT - PIA
1 stop4h 38mAmerican Airlines
Deal found 4/25$201
jue. 5/306:24 amMLI - SAT
1 stop5h 17mAmerican Airlines
dom. 6/26:25 amSAT - MLI
1 stop4h 42mAmerican Airlines
Deal found 4/25$247
mar. 5/214:12 pmMLI - SAT
1 stop8h 02mAmerican Airlines
mié. 5/295:00 amSAT - MLI
2 stops6h 07mAmerican Airlines
Deal found 4/25$250
lun. 6/246:08 pmSTL - SAT
1 stop4h 46mAmerican Airlines
mar. 7/29:23 amSAT - STL
1 stop9h 12mAmerican Airlines
Deal found 4/26$304
vie. 5/1710:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
vie. 5/312:27 pmSAT - ORD
1 stop8h 33mAmerican Airlines
Deal found 4/25$310
mié. 7/179:50 amORD - SAT
Nonstop2h 55mAmerican Airlines
mié. 7/241:35 pmSAT - ORD
Nonstop2h 56mAmerican Airlines
Deal found 4/25$323
vie. 5/248:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
dom. 5/269:30 amSAT - ORD
1 stop8h 25mAmerican Airlines
Deal found 4/25$327
mar. 6/185:00 amORD - SAT
1 stop4h 23mAmerican Airlines
mié. 6/191:27 pmSAT - ORD
Nonstop2h 53mAmerican Airlines
Deal found 4/25$332

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 3,068,117 searches. Data last updated abril 26, 2024.
To aid your search, here are some of the cheapest Frontier flights we've found from Illinois to San Antonio. Make sure to examine the flight information before completing your reservation.
jue. 5/165:56 pmORD - SAT
1 stop26h 07mFrontier
lun. 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Deal found 4/25$96
jue. 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
lun. 5/209:50 pmSAT - STL
1 stop12h 23mFrontier
Deal found 4/26$98
sáb. 5/117:51 pmSTL - SAT
1 stop15h 05mFrontier
lun. 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 4/25$99
mar. 5/146:27 pmORD - SAT
1 stop16h 55mFrontier
sáb. 5/186:48 pmSAT - ORD
1 stop10h 12mFrontier
Deal found 4/26$108
dom. 5/195:56 pmORD - SAT
1 stop25h 04mFrontier
lun. 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Deal found 4/25$116
vie. 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
lun. 5/208:00 pmSAT - ORD
1 stop29h 08mFrontier
Deal found 4/25$118
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/26$119
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/25$120
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/25$123

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 3,068,117 searches. Prices were last updated on abril 26, 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.
jue. 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
lun. 5/209:50 pmSAT - STL
1 stop12h 23mFrontier
Deal found 4/26$98
sáb. 5/117:51 pmSTL - SAT
1 stop15h 05mFrontier
lun. 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 4/25$99
sáb. 5/117:51 pmSTL - SAT
1 stop15h 05mMultiple Airlines
mar. 5/148:41 pmSAT - STL
1 stop14h 05mMultiple Airlines
Deal found 4/25$111
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/26$119
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/25$120
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/25$123
mié. 5/1511:36 amSTL - SAT
1 stop12h 07mMultiple Airlines
lun. 5/208:00 pmSAT - STL
1 stop11h 08mMultiple Airlines
Deal found 4/25$124
jue. 5/2310:22 pmMDW - SAT
1 stop10h 01mFrontier
sáb. 5/256:48 pmSAT - MDW
1 stop11h 02mFrontier
Deal found 4/24$129
jue. 5/910:59 pmSTL - SAT
1 stop21h 19mFrontier
dom. 5/1211:56 amSAT - STL
1 stop10h 01mFrontier
Deal found 4/25$129

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 3,068,117 searches. Data last updated abril 26, 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.
jue. 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
lun. 5/209:50 pmSAT - STL
1 stop12h 23mFrontier
Deal found 4/26$98
sáb. 5/117:51 pmSTL - SAT
1 stop15h 05mFrontier
lun. 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 4/25$99
sáb. 5/117:51 pmSTL - SAT
1 stop15h 05mMultiple Airlines
mar. 5/148:41 pmSAT - STL
1 stop14h 05mMultiple Airlines
Deal found 4/25$111
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/26$119
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/25$120
jue. 5/1610:22 pmMDW - SAT
1 stop10h 01mFrontier
lun. 5/209:23 amSAT - MDW
1 stop28h 26mFrontier
Deal found 4/25$123
mié. 5/1511:36 amSTL - SAT
1 stop12h 07mMultiple Airlines
lun. 5/208:00 pmSAT - STL
1 stop11h 08mMultiple Airlines
Deal found 4/25$124
jue. 5/2310:22 pmMDW - SAT
1 stop10h 01mFrontier
sáb. 5/256:48 pmSAT - MDW
1 stop11h 02mFrontier
Deal found 4/24$129
jue. 5/910:59 pmSTL - SAT
1 stop21h 19mFrontier
dom. 5/1211:56 amSAT - STL
1 stop10h 01mFrontier
Deal found 4/25$129

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 3,068,117 searches. Data last updated abril 26, 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.
mié. 7/179:50 amORD - SAT
Nonstop2h 55mAmerican Airlines
mié. 7/241:35 pmSAT - ORD
Nonstop2h 56mAmerican Airlines
Deal found 4/25$323
mar. 6/259:45 amORD - SAT
Nonstop2h 52mAmerican Airlines
mar. 7/21:27 pmSAT - ORD
Nonstop2h 53mAmerican Airlines
Deal found 4/25$340
vie. 5/3110:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
mar. 6/42:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/25$343
mar. 5/288:55 pmMDW - SAT
Nonstop2h 45mSouthwest
jue. 5/305:05 amSAT - MDW
Nonstop2h 40mSouthwest
Deal found 4/25$344
sáb. 5/1810:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
lun. 5/206:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/24$350
sáb. 5/188:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
lun. 5/206:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/26$351
mié. 5/158:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
sáb. 5/182:28 pmSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/25$356
jue. 5/238:39 pmORD - SAT
Nonstop2h 57mAmerican Airlines
mar. 5/286:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/25$360
jue. 5/1610:19 amORD - SAT
Nonstop2h 52mAmerican Airlines
lun. 5/206:25 amSAT - ORD
Nonstop2h 47mAmerican Airlines
Deal found 4/25$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 3,068,117 searches. Data last updated abril 26, 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.
vie. 5/35:35 pmSTL - SAT
1 stop14h 45mFrontier
vie. 5/109:19 pmSAT - STL
1 stop12h 59mFrontier
Deal found 4/26$156
vie. 5/35:30 amMDW - SAT
1 stop16h 29mFrontier
mié. 5/89:54 pmSAT - MDW
1 stop13h 42mFrontier
Deal found 4/24$157
sáb. 5/410:59 pmMDW - SAT
1 stop11h 57mFrontier
lun. 5/69:36 pmSAT - MDW
1 stop14h 00mFrontier
Deal found 4/26$169
lun. 5/65:09 pmORD - SAT
1 stop16h 16mSpirit Airlines
sáb. 5/119:22 pmSAT - ORD
1 stop14h 50mSpirit Airlines
Deal found 4/25$207
jue. 5/26:27 pmORD - SAT
1 stop27h 32mFrontier
sáb. 5/49:20 amSAT - ORD
1 stop15h 36mFrontier
Deal found 4/26$210
jue. 5/210:53 pmMDW - SAT
1 stop23h 06mFrontier
sáb. 5/49:20 amSAT - MDW
1 stop23h 11mFrontier
Deal found 4/26$210
lun. 5/65:09 pmORD - SAT
1 stop16h 16mSpirit Airlines
sáb. 5/118:00 pmSAT - ORD
2 stops16h 12mSpirit Airlines
Deal found 4/25$227
dom. 5/59:25 pmORD - SAT
1 stop27h 17mMultiple Airlines
vie. 5/1010:59 pmSAT - ORD
1 stop25h 57mMultiple Airlines
Deal found 4/25$229
jue. 5/29:25 pmORD - SAT
1 stop27h 17mSpirit Airlines
mar. 5/74:44 pmSAT - ORD
1 stop26h 35mSpirit Airlines
Deal found 4/25$251

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 3,068,117 searches. Data last updated abril 26, 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.
mié. 5/296:10 amORD - SAT
1 stop7h 31mSpirit Airlines
Deal found 4/25$48
mié. 5/156:10 amORD - SAT
1 stop7h 31mSpirit Airlines
Deal found 4/26$51
mié. 5/156:10 amORD - SAT
1 stop7h 31mSpirit Airlines
Deal found 4/25$52
mar. 5/1410:55 pmMDW - SAT
1 stop12h 27mFrontier
Deal found 4/26$55
jue. 5/95:56 pmMDW - SAT
1 stop20h 01mFrontier
Deal found 4/25$59
jue. 5/95:51 pmORD - SAT
1 stop20h 06mFrontier
Deal found 4/25$60
mar. 5/285:36 pmORD - SAT
1 stop20h 05mSpirit Airlines
Deal found 4/26$68
vie. 5/175:56 pmORD - SAT
1 stop15h 50mFrontier
Deal found 4/25$70
lun. 5/138:25 amORD - SAT
1 stop7h 12mFrontier
Deal found 4/25$75

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 3,068,117 searches. Data last updated abril 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$96 - $194

Route

Depart

Return

Price

Chicago O'Hare IntlSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

jue. 5/16

1 stop26h 07m

San Antonio

lun. 5/20

1 stop29h 08m

$96

Chicago O'Hare IntlSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

jue. 5/16

1 stop26h 07m

San Antonio

lun. 5/20

1 stop29h 08m

$98

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

jue. 5/16

1 stop9h 17m

San Antonio

lun. 5/20

1 stop12h 23m

$98

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

sáb. 5/11

1 stop15h 05m

San Antonio

lun. 5/13

1 stop12h 33m

$99

Chicago O'Hare IntlSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mié. 5/15

1 stop7h 31m

San Antonio

sáb. 5/18

1 stop10h 12m

$106

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

sáb. 5/11

1 stop15h 05m

San Antonio

mar. 5/14

1 stop14h 05m

$111

Chicago O'Hare IntlSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mar. 5/7

2 stops21h 58m

San Antonio

mar. 5/14

1 stop11h 21m

$120

Chicago O'Hare IntlSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mar. 5/7

1 stop20h 05m

San Antonio

mar. 5/14

1 stop26h 03m

$124

Moline Quad-CitySan Antonio

MLI - SAT

MLISAT

Moline Quad-City

mar. 5/21

1 stop8h 02m

San Antonio

mié. 5/29

1 stop4h 27m

$194

Flights are sorted by cheapest first

Deals found on 4/25

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 abril 26, 2024.
Read reviews from past customers who have flown American Airlines, Frontier and Spirit 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.
Southwest
8.2
Very good
6,173 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.4

Overall

8.2

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

Southwest
8.2
Very good
6,173 reviews
Southwest
8.2
Very good
6,173 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.4

Overall

8.2

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

8.1
Very good
9,115 reviews
Southwest
8.2
Very good
6,173 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.4

Overall

8.2

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

8.1
Very good
10,966 reviews
Southwest
8.2
Very good
6,173 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.4

Overall

8.2

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.4
Good
11,228 reviews
Southwest
8.2
Very good
6,173 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.4

Overall

8.2

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.3
Good
14,889 reviews
Southwest
8.2
Very good
6,173 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.4

Overall

8.2

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

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.
  • What airport do you fly into for flights to San Antonio from Illinois?

    Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Illinois. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • Can I find flights from Illinois to San Antonio for under $100 on Cheapflights?

    Yes, there are multiple flights from Illinois to San Antonio for under $100. The cheapest flight booked recently is on Frontier for just $96, but on average you can expect to pay $116.

  • Are there nonstop flights from Illinois to San Antonio for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from Illinois to San Antonio under $400. A good price for a nonstop flight from Illinois to San Antonio is less than $372.

  • Are there last-minute flights available from Illinois to San Antonio for under $200?

    There are currently 20+ open flights from Illinois to San Antonio within the next 7 days for less than $200.

  • What days are nonstop flights available from Illinois to San Antonio?

    You can find nonstop flights on the following days: Friday.

  • How many flights depart from Illinois to San Antonio on average per day?

    Travelers can expect 1 flight from Illinois to San Antonio on average per day.
    Evening (6pm - Midnight) - 100% of flight departures

  • How long is the flight from Illinois to San Antonio?

    Frontier and Spirit Airlines can get you from Illinois to San Antonio in just under 21h 58m. Your travel time can differ by up to 4h 09m. The distance between Illinois and San Antonio is about 1048 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $48. Users have also found prices from $55 and $94 on Frontier and Sun Country Air, respectively.

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

  • What are the most popular airlines that fly from Illinois to San Antonio?

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

    Before booking your flight to San Antonio from Illinois, check out the most reliable airlines to get you to your destination on time: American Airlines (74%), Air Canada (72%), Japan Airlines( 71%).

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

    While on average a flight from Illinois to San Antonio is generally $388, our data shows the cheapest flight currently is $94. When looking at the most popular route, (Chicago O'Hare Intl - San Antonio), you can expect to pay $106 for that flight.

  • What does ORD to SAT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to San Antonio Airport flight would often be abbreviated as a ORD to SAT flight. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Illinois to San Antonio that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to San Antonio with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Illinois to San Antonio that allow pets onboard?

    Many airlines flying from Illinois to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to San Antonio?

    Yes, you can often find last-minute deals on Illinois to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to San Antonio flight deals updated?

    The Illinois to San Antonio flight deals you see on this page were last updated on 4/26.

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Alternative routes for Illinois to San Antonio
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 3,068,117 searches. Data last updated abril 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$118Average$208FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$158Average$224FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapest$192Average$456FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$213Average$412FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$237Average$388FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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 abril 26, 2024.
1%of flight departuresEarly morningMidnight to 6 am
27%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
72%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Fly with Cheapflights

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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.

Can Cheapflights notify me if prices for flights from Illinois to San Antonio become cheaper?

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.

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