Flights from Portland to San Antonio

Cheapest flights from Portland

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.

Mon, Apr 22 - Wed, Apr 24

PDX

Portland Intl.

SAT

San Antonio Intl.

$170 Roundtrip, found 5 hours ago

$170

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Wed, Apr 24, priced at $170 found 5 hours ago

Mon, Apr 22 - Mon, Apr 29

PDX

Portland Intl.

SAT

San Antonio Intl.

$189 Roundtrip, found 6 hours ago

$189

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Mon, Apr 29, priced at $189 found 6 hours ago

Mon, Apr 22 - Sun, Apr 28

PDX

Portland Intl.

SAT

San Antonio Intl.

$199 Roundtrip, found 5 hours ago

$199

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Sun, Apr 28, priced at $199 found 5 hours ago

Wed, Apr 24 - Mon, Apr 29

PDX

Portland Intl.

SAT

San Antonio Intl.

$208 Roundtrip, found 17 hours ago

$208

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Wed, Apr 24 from Portland Intl. to San Antonio Intl., returning Mon, Apr 29, priced at $208 found 17 hours ago

Mon, Apr 22 - Mon, Apr 29

PDX

Portland Intl.

SAT

San Antonio Intl.

$218 Roundtrip, found 17 hours ago

$218

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Mon, Apr 29, priced at $218 found 17 hours ago

Mon, Apr 22 - Sat, Apr 27

PDX

Portland Intl.

SAT

San Antonio Intl.

$219 Roundtrip, found 5 hours ago

$219

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Sat, Apr 27, priced at $219 found 5 hours ago

Mon, Apr 22 - Fri, Apr 26

PDX

Portland Intl.

SAT

San Antonio Intl.

$228 Roundtrip, found 17 hours ago

$228

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Fri, Apr 26, priced at $228 found 17 hours ago

Wed, Apr 24 - Sat, Apr 27

PDX

Portland Intl.

SAT

San Antonio Intl.

$238 Roundtrip, found 17 hours ago

$238

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Wed, Apr 24 from Portland Intl. to San Antonio Intl., returning Sat, Apr 27, priced at $238 found 17 hours ago

Wed, Apr 24 - Wed, Apr 24

PDX

Portland Intl.

SAT

San Antonio Intl.

$239 Roundtrip, found 6 hours ago

$239

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, Apr 24 from Portland Intl. to San Antonio Intl., returning Wed, Apr 24, priced at $239 found 6 hours ago

Mon, Apr 22 - Sat, Apr 27

PDX

Portland Intl.

SAT

San Antonio Intl.

$248 Roundtrip, found 17 hours ago

$248

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Mon, Apr 22 from Portland Intl. to San Antonio Intl., returning Sat, Apr 27, priced at $248 found 17 hours ago

Sat, Apr 20 - Wed, Apr 24

PDX

Portland Intl.

SAT

San Antonio Intl.

$249 Roundtrip, found 5 hours ago

$249

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sat, Apr 20 from Portland Intl. to San Antonio Intl., returning Wed, Apr 24, priced at $249 found 5 hours ago

Wed, Apr 24 - Mon, Apr 29

PDX

Portland Intl.

SAT

San Antonio Intl.

$258 Roundtrip, found 6 hours ago

$258

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, Apr 24 from Portland Intl. to San Antonio Intl., returning Mon, Apr 29, priced at $258 found 6 hours ago

Sun, Apr 21 - Wed, Apr 24

PDX

Portland Intl.

SAT

San Antonio Intl.

$259 Roundtrip, found 5 hours ago

$259

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sun, Apr 21 from Portland Intl. to San Antonio Intl., returning Wed, Apr 24, priced at $259 found 5 hours ago

Wed, Apr 24 - Fri, Apr 26

PDX

Portland Intl.

SAT

San Antonio Intl.

$268 Roundtrip, found 6 hours ago

$268

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, Apr 24 from Portland Intl. to San Antonio Intl., returning Fri, Apr 26, priced at $268 found 6 hours ago

Sat, Apr 20 - Sun, Apr 28

PDX

Portland Intl.

SAT

San Antonio Intl.

$278 Roundtrip, found 5 hours ago

$278

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sat, Apr 20 from Portland Intl. to San Antonio Intl., returning Sun, Apr 28, priced at $278 found 5 hours ago

Thu, Apr 25 - Mon, Apr 29

PDX

Portland Intl.

SAT

San Antonio Intl.

$423 Roundtrip, found 17 hours ago

$423

Roundtrip

found 17 hours ago

Select Spirit Airlines flight, departing Thu, Apr 25 from Portland Intl. to San Antonio Intl., returning Mon, Apr 29, priced at $423 found 17 hours ago

Thu, Apr 25 - Thu, Apr 25

PDX

Portland Intl.

SAT

San Antonio Intl.

$516 Roundtrip, found 17 hours ago

$516

Roundtrip

found 17 hours ago

Select Delta flight, departing Thu, Apr 25 from Portland Intl. to San Antonio Intl., returning Thu, Apr 25, priced at $516 found 17 hours ago

Wed, Apr 24 - Thu, Apr 25

PDX

Portland Intl.

SAT

San Antonio Intl.

$516 Roundtrip, found 6 hours ago

$516

Roundtrip

found 6 hours ago

Select Alaska Airlines flight, departing Wed, Apr 24 from Portland Intl. to San Antonio Intl., returning Thu, Apr 25, priced at $516 found 6 hours ago

Fri, Apr 19 - Wed, Apr 24

PDX

Portland Intl.

SAT

San Antonio Intl.

$576 Roundtrip, found 5 hours ago

$576

Roundtrip

found 5 hours ago

Select United flight, departing Fri, Apr 19 from Portland Intl. to San Antonio Intl., returning Wed, Apr 24, priced at $576 found 5 hours ago

Fri, Apr 19 - Wed, Apr 24

PDX

Portland Intl.

SAT

San Antonio Intl.

$576 Roundtrip, found 5 hours ago

$576

Roundtrip

found 5 hours ago

Select American Airlines flight, departing Fri, Apr 19 from Portland Intl. to San Antonio Intl., returning Wed, Apr 24, priced at $576 found 5 hours ago