Flights from Boston to San Antonio

Cheapest flights from Boston

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.

Wed, Oct 22 - Tue, Oct 28

BOS

Logan Intl.

SAT

San Antonio Intl.

$239 Roundtrip, found 16 hours ago

$239

Roundtrip

found 16 hours ago

Select Delta flight, departing Wed, Oct 22 from Logan Intl. to San Antonio Intl., returning Tue, Oct 28, priced at $239 found 16 hours ago

Wed, Oct 22 - Wed, Oct 29

BOS

Logan Intl.

SAT

San Antonio Intl.

$249 Roundtrip, found 16 hours ago

$249

Roundtrip

found 16 hours ago

Select Delta flight, departing Wed, Oct 22 from Logan Intl. to San Antonio Intl., returning Wed, Oct 29, priced at $249 found 16 hours ago

Thu, Oct 23 - Wed, Oct 29

BOS

Logan Intl.

SAT

San Antonio Intl.

$259 Roundtrip, found 16 hours ago

$259

Roundtrip

found 16 hours ago

Select Delta flight, departing Thu, Oct 23 from Logan Intl. to San Antonio Intl., returning Wed, Oct 29, priced at $259 found 16 hours ago

Sun, Oct 19 - Sun, Oct 26

BOS

Logan Intl.

SAT

San Antonio Intl.

$259 Roundtrip, found 16 hours ago

$259

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Sun, Oct 19 from Logan Intl. to San Antonio Intl., returning Sun, Oct 26, priced at $259 found 16 hours ago

Sun, Oct 19 - Fri, Oct 31

BOS

Logan Intl.

SAT

San Antonio Intl.

$267 Roundtrip, found 16 hours ago

$267

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Sun, Oct 19 from Logan Intl. to San Antonio Intl., returning Fri, Oct 31, priced at $267 found 16 hours ago

Mon, Oct 20 - Sat, Nov 1

BOS

Logan Intl.

SAT

San Antonio Intl.

$268 Roundtrip, found 16 hours ago

$268

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Mon, Oct 20 from Logan Intl. to San Antonio Intl., returning Sat, Nov 1, priced at $268 found 16 hours ago

Fri, Oct 24 - Tue, Oct 28

BOS

Logan Intl.

SAT

San Antonio Intl.

$269 Roundtrip, found 16 hours ago

$269

Roundtrip

found 16 hours ago

Select Delta flight, departing Fri, Oct 24 from Logan Intl. to San Antonio Intl., returning Tue, Oct 28, priced at $269 found 16 hours ago

Mon, Oct 20 - Sun, Oct 26

BOS

Logan Intl.

SAT

San Antonio Intl.

$277 Roundtrip, found 16 hours ago

$277

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Mon, Oct 20 from Logan Intl. to San Antonio Intl., returning Sun, Oct 26, priced at $277 found 16 hours ago

Fri, Oct 24 - Wed, Oct 29

BOS

Logan Intl.

SAT

San Antonio Intl.

$279 Roundtrip, found 16 hours ago

$279

Roundtrip

found 16 hours ago

Select Delta flight, departing Fri, Oct 24 from Logan Intl. to San Antonio Intl., returning Wed, Oct 29, priced at $279 found 16 hours ago

Mon, Oct 20 - Fri, Oct 31

BOS

Logan Intl.

SAT

San Antonio Intl.

$285 Roundtrip, found 16 hours ago

$285

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Mon, Oct 20 from Logan Intl. to San Antonio Intl., returning Fri, Oct 31, priced at $285 found 16 hours ago

Fri, Oct 24 - Sun, Oct 26

BOS

Logan Intl.

SAT

San Antonio Intl.

$288 Roundtrip, found 16 hours ago

$288

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Fri, Oct 24 from Logan Intl. to San Antonio Intl., returning Sun, Oct 26, priced at $288 found 16 hours ago

Wed, Dec 24 - Mon, Jan 5

BOS

Logan Intl.

SAT

San Antonio Intl.

$289 Roundtrip, found 21 hours ago

$289

Roundtrip

found 21 hours ago

Select Delta flight, departing Wed, Dec 24 from Logan Intl. to San Antonio Intl., returning Mon, Jan 5, priced at $289 found 21 hours ago

Fri, Oct 24 - Thu, Oct 30

BOS

Logan Intl.

SAT

San Antonio Intl.

$297 Roundtrip, found 16 hours ago

$297

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Fri, Oct 24 from Logan Intl. to San Antonio Intl., returning Thu, Oct 30, priced at $297 found 16 hours ago

Wed, Dec 24 - Fri, Jan 2

BOS

Logan Intl.

SAT

San Antonio Intl.

$299 Roundtrip, found 21 hours ago

$299

Roundtrip

found 21 hours ago

Select Delta flight, departing Wed, Dec 24 from Logan Intl. to San Antonio Intl., returning Fri, Jan 2, priced at $299 found 21 hours ago

Sat, Oct 18 - Tue, Oct 28

BOS

Logan Intl.

SAT

San Antonio Intl.

$309 Roundtrip, found 16 hours ago

$309

Roundtrip

found 16 hours ago

Select Delta flight, departing Sat, Oct 18 from Logan Intl. to San Antonio Intl., returning Tue, Oct 28, priced at $309 found 16 hours ago

Sat, Oct 18 - Wed, Oct 29

BOS

Logan Intl.

SAT

San Antonio Intl.

$319 Roundtrip, found 16 hours ago

$319

Roundtrip

found 16 hours ago

Select Delta flight, departing Sat, Oct 18 from Logan Intl. to San Antonio Intl., returning Wed, Oct 29, priced at $319 found 16 hours ago

Sun, Oct 19 - Wed, Oct 29

BOS

Logan Intl.

SAT

San Antonio Intl.

$329 Roundtrip, found 16 hours ago

$329

Roundtrip

found 16 hours ago

Select Delta flight, departing Sun, Oct 19 from Logan Intl. to San Antonio Intl., returning Wed, Oct 29, priced at $329 found 16 hours ago

Wed, Dec 24 - Sun, Jan 4

BOS

Logan Intl.

SAT

San Antonio Intl.

$329 Roundtrip, found 21 hours ago

$329

Roundtrip

found 21 hours ago

Select Delta flight, departing Wed, Dec 24 from Logan Intl. to San Antonio Intl., returning Sun, Jan 4, priced at $329 found 21 hours ago

Tue, Oct 21 - Thu, Oct 30

BOS

Logan Intl.

SAT

San Antonio Intl.

$349 Roundtrip, found 16 hours ago

$349

Roundtrip

found 16 hours ago

Select United flight, departing Tue, Oct 21 from Logan Intl. to San Antonio Intl., returning Thu, Oct 30, priced at $349 found 16 hours ago

Wed, Dec 24 - Thu, Jan 1

BOS

Logan Intl.

SAT

San Antonio Intl.

$349 Roundtrip, found 21 hours ago

$349

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Wed, Dec 24 from Logan Intl. to San Antonio Intl., returning Thu, Jan 1, priced at $349 found 21 hours ago