$83 Cheap Frontier Airlines flights Ontario (ONT) to San Antonio (SAT)

$83 Cheap Frontier Airlines flights Ontario (ONT) to San Antonio (SAT)

Prices were available within the past 7 days and start at $83 for one-way flights and $120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 8 - Thu, Jan 22

ONT

Ontario

SAT

San Antonio

$120 Roundtrip, just found

$120

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Jan 8 from Ontario to San Antonio, returning Thu, Jan 22, priced at $120 just found

Thu, Jan 8 - Fri, Jan 23

ONT

Ontario

SAT

San Antonio

$134 Roundtrip, just found

$134

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Jan 8 from Ontario to San Antonio, returning Fri, Jan 23, priced at $134 just found

Tue, Nov 25 - Thu, Dec 4

ONT

Ontario

SAT

San Antonio

$137 Roundtrip, found 8 hours ago

$137

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to San Antonio, returning Thu, Dec 4, priced at $137 found 8 hours ago

Thu, Jan 15 - Mon, Feb 2

ONT

Ontario

SAT

San Antonio

$138 Roundtrip, just found

$138

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Jan 15 from Ontario to San Antonio, returning Mon, Feb 2, priced at $138 just found

Fri, Jan 9 - Fri, Jan 23

ONT

Ontario

SAT

San Antonio

$148 Roundtrip, just found

$148

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Jan 9 from Ontario to San Antonio, returning Fri, Jan 23, priced at $148 just found

Sun, Jan 18 - Fri, Jan 30

ONT

Ontario

SAT

San Antonio

$152 Roundtrip, just found

$152

Roundtrip

just found

Select Frontier Airlines flight, departing Sun, Jan 18 from Ontario to San Antonio, returning Fri, Jan 30, priced at $152 just found

Tue, Nov 25 - Thu, Nov 27

ONT

Ontario

SAT

San Antonio

$154 Roundtrip, found 8 hours ago

$154

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to San Antonio, returning Thu, Nov 27, priced at $154 found 8 hours ago

Mon, Jan 12 - Mon, Feb 2

ONT

Ontario

SAT

San Antonio

$170 Roundtrip, just found

$170

Roundtrip

just found

Select Frontier Airlines flight, departing Mon, Jan 12 from Ontario to San Antonio, returning Mon, Feb 2, priced at $170 just found

Mon, Jan 12 - Fri, Jan 30

ONT

Ontario

SAT

San Antonio

$184 Roundtrip, just found

$184

Roundtrip

just found

Select Frontier Airlines flight, departing Mon, Jan 12 from Ontario to San Antonio, returning Fri, Jan 30, priced at $184 just found