$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 $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 25 - Thu, Dec 4

ONT

Ontario

SAT

San Antonio

$137 Roundtrip, found 1 hour ago

$137

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to San Antonio, returning Thu, Dec 4, priced at $137 found 1 hour ago

Tue, Nov 25 - Thu, Nov 27

ONT

Ontario

SAT

San Antonio

$154 Roundtrip, found 1 hour ago

$154

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to San Antonio, returning Thu, Nov 27, priced at $154 found 1 hour ago

Tue, Nov 25 - Sun, Dec 7

ONT

Ontario

SAT

San Antonio

$198 Roundtrip, found 1 hour ago

$198

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to San Antonio, returning Sun, Dec 7, priced at $198 found 1 hour ago

Wed, Nov 26 - Thu, Dec 4

ONT

Ontario

SAT

San Antonio

$201 Roundtrip, found 1 hour ago

$201

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Wed, Nov 26 from Ontario to San Antonio, returning Thu, Dec 4, priced at $201 found 1 hour ago

Wed, Nov 26 - Thu, Nov 27

ONT

Ontario

SAT

San Antonio

$218 Roundtrip, found 1 hour ago

$218

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Wed, Nov 26 from Ontario to San Antonio, returning Thu, Nov 27, priced at $218 found 1 hour ago

Tue, Nov 25 - Thu, Nov 27

ONT

Ontario

SAT

San Antonio

$242 Roundtrip, found 2 days ago

$242

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Nov 25 from Ontario to San Antonio, returning Thu, Nov 27, priced at $242 found 2 days ago

Sat, Nov 22 - Sat, Nov 29

ONT

Ontario

SAT

San Antonio

$262 Roundtrip, found 2 days ago

$262

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Nov 22 from Ontario to San Antonio, returning Sat, Nov 29, priced at $262 found 2 days ago

Wed, Nov 26 - Sat, Nov 29

ONT

Ontario

SAT

San Antonio

$282 Roundtrip, found 1 hour ago

$282

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Wed, Nov 26 from Ontario to San Antonio, returning Sat, Nov 29, priced at $282 found 1 hour ago

Fri, Nov 28 - Sun, Nov 30

ONT

Ontario

SAT

San Antonio

$490 Roundtrip, found 1 hour ago

$490

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Ontario to San Antonio, returning Sun, Nov 30, priced at $490 found 1 hour ago