Flights from San Antonio to Chicago

Cheapest flights from San Antonio

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 18 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$228 Roundtrip, found 3 days ago

$228

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sun, May 18 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $228 found 3 days ago

Tue, May 20 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$239 Roundtrip, found 3 days ago

$239

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $239 found 3 days ago

Sat, May 17 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$241 Roundtrip, found 3 days ago

$241

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, May 17 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $241 found 3 days ago

Tue, May 20 - Wed, May 21

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$246 Roundtrip, found 3 days ago

$246

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Wed, May 21, priced at $246 found 3 days ago

Sun, May 18 - Mon, Jul 14

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$251 Roundtrip, found 3 days ago

$251

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sun, May 18 from San Antonio Intl. to O'Hare Intl., returning Mon, Jul 14, priced at $251 found 3 days ago

Tue, May 20 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$251 Roundtrip, found 3 days ago

$251

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $251 found 3 days ago

Tue, May 20 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$256 Roundtrip, found 3 days ago

$256

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $256 found 3 days ago

Thu, May 22 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$260 Roundtrip, found 3 days ago

$260

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Thu, May 22 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $260 found 3 days ago

Sun, May 18 - Sat, Jul 12

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$261 Roundtrip, found 3 days ago

$261

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, May 18 from San Antonio Intl. to O'Hare Intl., returning Sat, Jul 12, priced at $261 found 3 days ago

Sat, May 17 - Mon, Jul 14

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$264 Roundtrip, found 3 days ago

$264

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, May 17 from San Antonio Intl. to O'Hare Intl., returning Mon, Jul 14, priced at $264 found 3 days ago

Sun, May 18 - Fri, Jul 18

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$267 Roundtrip, found 3 days ago

$267

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sun, May 18 from San Antonio Intl. to O'Hare Intl., returning Fri, Jul 18, priced at $267 found 3 days ago

Tue, May 20 - Wed, May 21

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$270 Roundtrip, found 3 days ago

$270

Roundtrip

found 3 days ago

Select United flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Wed, May 21, priced at $270 found 3 days ago

Sat, Jul 19 - Wed, Jul 23

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$273 Roundtrip, found 13 hours ago

$273

Roundtrip

found 13 hours ago

Select Spirit Airlines flight, departing Sat, Jul 19 from San Antonio Intl. to O'Hare Intl., returning Wed, Jul 23, priced at $273 found 13 hours ago

Tue, May 20 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$275 Roundtrip, found 3 days ago

$275

Roundtrip

found 3 days ago

Select United flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $275 found 3 days ago

Tue, May 20 - Fri, Jul 18

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$278 Roundtrip, found 3 days ago

$278

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Fri, Jul 18, priced at $278 found 3 days ago

Tue, May 20 - Wed, May 21

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$280 Roundtrip, found 3 days ago

$280

Roundtrip

found 3 days ago

Select United flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Wed, May 21, priced at $280 found 3 days ago

Thu, Jul 17 - Wed, Jul 23

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$281 Roundtrip, found 13 hours ago

$281

Roundtrip

found 13 hours ago

Select Spirit Airlines flight, departing Thu, Jul 17 from San Antonio Intl. to O'Hare Intl., returning Wed, Jul 23, priced at $281 found 13 hours ago

Tue, May 20 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$297 Roundtrip, found 3 days ago

$297

Roundtrip

found 3 days ago

Select United flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $297 found 3 days ago

Tue, May 20 - Tue, Jul 15

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$297 Roundtrip, found 3 days ago

$297

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, May 20 from San Antonio Intl. to O'Hare Intl., returning Tue, Jul 15, priced at $297 found 3 days ago

Wed, Jul 16 - Sat, Jul 26

SAT

San Antonio Intl.

ORD

O'Hare Intl.

$317 Roundtrip, found 13 hours ago

$317

Roundtrip

found 13 hours ago

Select Delta flight, departing Wed, Jul 16 from San Antonio Intl. to O'Hare Intl., returning Sat, Jul 26, priced at $317 found 13 hours ago