$91 Cheap Frontier Airlines flights Ontario (ONT) to San Antonio (SAT)

$91 Cheap Frontier Airlines flights Ontario (ONT) to San Antonio (SAT)

Prices were available within the past 7 days and start at $91 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Wed, May 6

ONT

Ontario

SAT

San Antonio

$170 Roundtrip, found 15 hours ago

$170

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Tue, May 5 from Ontario to San Antonio, returning Wed, May 6, priced at $170 found 15 hours ago

Tue, May 5 - Fri, May 8

ONT

Ontario

SAT

San Antonio

$190 Roundtrip, found 15 hours ago

$190

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Tue, May 5 from Ontario to San Antonio, returning Fri, May 8, priced at $190 found 15 hours ago

Wed, May 27 - Thu, May 28

ONT

Ontario

SAT

San Antonio

$210 Roundtrip, found 11 hours ago

$210

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, May 27 from Ontario to San Antonio, returning Thu, May 28, priced at $210 found 11 hours ago

Sun, May 10 - Fri, May 15

ONT

Ontario

SAT

San Antonio

$211 Roundtrip, found 15 hours ago

$211

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sun, May 10 from Ontario to San Antonio, returning Fri, May 15, priced at $211 found 15 hours ago

Sun, May 24 - Thu, May 28

ONT

Ontario

SAT

San Antonio

$215 Roundtrip, found 11 hours ago

$215

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Sun, May 24 from Ontario to San Antonio, returning Thu, May 28, priced at $215 found 11 hours ago

Wed, Jun 10 - Wed, Jun 24

ONT

Ontario

SAT

San Antonio

$220 Roundtrip, found 15 hours ago

$220

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Wed, Jun 10 from Ontario to San Antonio, returning Wed, Jun 24, priced at $220 found 15 hours ago