$87 Cheap Frontier Airlines flights Ontario (ONT) to San Antonio (SAT)

$87 Cheap Frontier Airlines flights Ontario (ONT) to San Antonio (SAT)

Prices were available within the past 7 days and start at $87 for one-way flights and $221 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 24 - Thu, May 29

ONT

Ontario

SAT

San Antonio

$221 Roundtrip, found 1 day ago

$221

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 24 from Ontario to San Antonio, returning Thu, May 29, priced at $221 found 1 day ago

Wed, May 21 - Sat, May 24

ONT

Ontario

SAT

San Antonio

$230 Roundtrip, found 17 hours ago

$230

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Wed, May 21 from Ontario to San Antonio, returning Sat, May 24, priced at $230 found 17 hours ago

Sat, May 24 - Sun, May 25

ONT

Ontario

SAT

San Antonio

$231 Roundtrip, found 1 day ago

$231

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 24 from Ontario to San Antonio, returning Sun, May 25, priced at $231 found 1 day ago

Fri, May 16 - Sat, May 24

ONT

Ontario

SAT

San Antonio

$240 Roundtrip, found 17 hours ago

$240

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Fri, May 16 from Ontario to San Antonio, returning Sat, May 24, priced at $240 found 17 hours ago

Sun, May 18 - Sat, May 24

ONT

Ontario

SAT

San Antonio

$250 Roundtrip, found 17 hours ago

$250

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sun, May 18 from Ontario to San Antonio, returning Sat, May 24, priced at $250 found 17 hours ago

Fri, May 16 - Tue, May 27

ONT

Ontario

SAT

San Antonio

$251 Roundtrip, found 17 hours ago

$251

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Fri, May 16 from Ontario to San Antonio, returning Tue, May 27, priced at $251 found 17 hours ago

Sat, May 24 - Sat, May 24

ONT

Ontario

SAT

San Antonio

$260 Roundtrip, found 1 day ago

$260

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 24 from Ontario to San Antonio, returning Sat, May 24, priced at $260 found 1 day ago

Mon, May 19 - Sun, May 25

ONT

Ontario

SAT

San Antonio

$261 Roundtrip, found 17 hours ago

$261

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Mon, May 19 from Ontario to San Antonio, returning Sun, May 25, priced at $261 found 17 hours ago

Mon, May 19 - Sun, May 25

ONT

Ontario

SAT

San Antonio

$270 Roundtrip, found 17 hours ago

$270

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Mon, May 19 from Ontario to San Antonio, returning Sun, May 25, priced at $270 found 17 hours ago

Thu, May 22 - Sat, May 24

ONT

Ontario

SAT

San Antonio

$271 Roundtrip, found 17 hours ago

$271

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, May 22 from Ontario to San Antonio, returning Sat, May 24, priced at $271 found 17 hours ago