$44 Cheap Frontier Airlines flights Las Vegas (LAS) to Ontario (ONT)

$44 Cheap Frontier Airlines flights Las Vegas (LAS) to Ontario (ONT)

Prices were available within the past 7 days and start at $44 for one-way flights and $88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 3 - Fri, Oct 10

LAS

Las Vegas

ONT

Ontario

$88 Roundtrip, found 3 days ago

$88

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Oct 3 from Las Vegas to Ontario, returning Fri, Oct 10, priced at $88 found 3 days ago

Mon, Sep 22 - Thu, Sep 25

LAS

Las Vegas

ONT

Ontario

$94 Roundtrip, found 4 days ago

$94

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Las Vegas to Ontario, returning Thu, Sep 25, priced at $94 found 4 days ago

Mon, Sep 22 - Sun, Sep 28

LAS

Las Vegas

ONT

Ontario

$99 Roundtrip, found 4 days ago

$99

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Las Vegas to Ontario, returning Sun, Sep 28, priced at $99 found 4 days ago

Sat, Nov 8 - Mon, Nov 10

LAS

Las Vegas

ONT

Ontario

$107 Roundtrip, found 20 hours ago

$107

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sat, Nov 8 from Las Vegas to Ontario, returning Mon, Nov 10, priced at $107 found 20 hours ago

Thu, Nov 6 - Thu, Nov 13

LAS

Las Vegas

ONT

Ontario

$108 Roundtrip, found 20 hours ago

$108

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Thu, Nov 6 from Las Vegas to Ontario, returning Thu, Nov 13, priced at $108 found 20 hours ago

Sun, Nov 9 - Thu, Nov 13

LAS

Las Vegas

ONT

Ontario

$118 Roundtrip, found 20 hours ago

$118

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sun, Nov 9 from Las Vegas to Ontario, returning Thu, Nov 13, priced at $118 found 20 hours ago