$60 Cheap Frontier Airlines flights Austin (AUS) to Ontario (ONT)

$60 Cheap Frontier Airlines flights Austin (AUS) to Ontario (ONT)

Prices were available within the past 7 days and start at $60 for one-way flights and $134 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 7 - Mon, Dec 8

AUS

Austin

ONT

Ontario

$134 Roundtrip, found 4 days ago

$134

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Dec 7 from Austin to Ontario, returning Mon, Dec 8, priced at $134 found 4 days ago

Thu, Dec 4 - Sat, Dec 6

AUS

Austin

ONT

Ontario

$138 Roundtrip, found 4 days ago

$138

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Austin to Ontario, returning Sat, Dec 6, priced at $138 found 4 days ago

Thu, Dec 4 - Fri, Dec 5

AUS

Austin

ONT

Ontario

$152 Roundtrip, found 4 days ago

$152

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Austin to Ontario, returning Fri, Dec 5, priced at $152 found 4 days ago

Thu, Nov 27 - Fri, Nov 28

AUS

Austin

ONT

Ontario

$154 Roundtrip, found 1 day ago

$154

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Nov 27 from Austin to Ontario, returning Fri, Nov 28, priced at $154 found 1 day ago

Mon, Nov 24 - Fri, Nov 28

AUS

Austin

ONT

Ontario

$198 Roundtrip, found 1 day ago

$198

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Nov 24 from Austin to Ontario, returning Fri, Nov 28, priced at $198 found 1 day ago

Fri, Nov 28 - Mon, Dec 1

AUS

Austin

ONT

Ontario

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Austin to Ontario, returning Mon, Dec 1, priced at $218 found 1 day ago

Mon, Nov 24 - Sat, Nov 29

AUS

Austin

ONT

Ontario

$242 Roundtrip, found 1 day ago

$242

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Nov 24 from Austin to Ontario, returning Sat, Nov 29, priced at $242 found 1 day ago

Fri, Nov 28 - Sat, Nov 29

AUS

Austin

ONT

Ontario

$262 Roundtrip, found 1 day ago

$262

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Nov 28 from Austin to Ontario, returning Sat, Nov 29, priced at $262 found 1 day ago