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

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

Prices were available within the past 7 days and start at for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 6 - Thu, Nov 13

SAT

San Antonio

ONT

Ontario

$154 Roundtrip, found 17 hours ago

$154

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, Nov 6 from San Antonio to Ontario, returning Thu, Nov 13, priced at $154 found 17 hours ago

Wed, Oct 8 - Thu, Oct 16

SAT

San Antonio

ONT

Ontario

$159 Roundtrip, found 7 hours ago

$159

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Wed, Oct 8 from San Antonio to Ontario, returning Thu, Oct 16, priced at $159 found 7 hours ago

Sat, Oct 11 - Thu, Oct 16

SAT

San Antonio

ONT

Ontario

$187 Roundtrip, found 7 hours ago

$187

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sat, Oct 11 from San Antonio to Ontario, returning Thu, Oct 16, priced at $187 found 7 hours ago

Wed, Oct 8 - Sat, Oct 18

SAT

San Antonio

ONT

Ontario

$192 Roundtrip, found 7 hours ago

$192

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Wed, Oct 8 from San Antonio to Ontario, returning Sat, Oct 18, priced at $192 found 7 hours ago

Sun, Oct 12 - Thu, Oct 16

SAT

San Antonio

ONT

Ontario

$199 Roundtrip, found 7 hours ago

$199

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sun, Oct 12 from San Antonio to Ontario, returning Thu, Oct 16, priced at $199 found 7 hours ago

Wed, Oct 8 - Mon, Oct 20

SAT

San Antonio

ONT

Ontario

$204 Roundtrip, found 7 hours ago

$204

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Wed, Oct 8 from San Antonio to Ontario, returning Mon, Oct 20, priced at $204 found 7 hours ago

Fri, Oct 10 - Thu, Oct 16

SAT

San Antonio

ONT

Ontario

$214 Roundtrip, found 7 hours ago

$214

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from San Antonio to Ontario, returning Thu, Oct 16, priced at $214 found 7 hours ago

Wed, Oct 8 - Sun, Oct 19

SAT

San Antonio

ONT

Ontario

$219 Roundtrip, found 7 hours ago

$219

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Wed, Oct 8 from San Antonio to Ontario, returning Sun, Oct 19, priced at $219 found 7 hours ago

Sat, Oct 11 - Sat, Oct 18

SAT

San Antonio

ONT

Ontario

$220 Roundtrip, found 7 hours ago

$220

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sat, Oct 11 from San Antonio to Ontario, returning Sat, Oct 18, priced at $220 found 7 hours ago

Sun, Oct 12 - Sat, Oct 18

SAT

San Antonio

ONT

Ontario

$232 Roundtrip, found 7 hours ago

$232

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sun, Oct 12 from San Antonio to Ontario, returning Sat, Oct 18, priced at $232 found 7 hours ago

Sun, Oct 12 - Mon, Oct 20

SAT

San Antonio

ONT

Ontario

$244 Roundtrip, found 7 hours ago

$244

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sun, Oct 12 from San Antonio to Ontario, returning Mon, Oct 20, priced at $244 found 7 hours ago

Fri, Oct 10 - Sat, Oct 18

SAT

San Antonio

ONT

Ontario

$247 Roundtrip, found 7 hours ago

$247

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Fri, Oct 10 from San Antonio to Ontario, returning Sat, Oct 18, priced at $247 found 7 hours ago