Cheap Frontier Airlines flights Austin (AUS) to Ontario (ONT)

Cheap Frontier Airlines flights Austin (AUS) to Ontario (ONT)

Prices were available within the past 7 days and start at for one-way flights and $242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 13 - Thu, Jan 22

AUS

Austin

ONT

Ontario

$242 Roundtrip, found 13 hours ago

$242

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Jan 13 from Austin to Ontario, returning Thu, Jan 22, priced at $242 found 13 hours ago

Tue, Jan 13 - Fri, Jan 23

AUS

Austin

ONT

Ontario

$256 Roundtrip, found 13 hours ago

$256

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Jan 13 from Austin to Ontario, returning Fri, Jan 23, priced at $256 found 13 hours ago

Tue, Jan 13 - Tue, Jan 20

AUS

Austin

ONT

Ontario

$272 Roundtrip, found 13 hours ago

$272

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Jan 13 from Austin to Ontario, returning Tue, Jan 20, priced at $272 found 13 hours ago

Tue, Jan 13 - Sun, Jan 18

AUS

Austin

ONT

Ontario

$361 Roundtrip, found 13 hours ago

$361

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Jan 13 from Austin to Ontario, returning Sun, Jan 18, priced at $361 found 13 hours ago

Thu, Jan 15 - Sun, Jan 18

AUS

Austin

ONT

Ontario

$440 Roundtrip, found 13 hours ago

$440

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Thu, Jan 15 from Austin to Ontario, returning Sun, Jan 18, priced at $440 found 13 hours ago