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

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

Prices were available within the past 7 days and start at for one-way flights and $70 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 3 - Tue, Feb 17

ONT

Ontario

LAS

Las Vegas

$70 Roundtrip, found 5 days ago

$70

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Feb 3 from Ontario to Las Vegas, returning Tue, Feb 17, priced at $70 found 5 days ago

Sat, Feb 14 - Tue, Feb 24

ONT

Ontario

LAS

Las Vegas

$81 Roundtrip, found 5 days ago

$81

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Feb 14 from Ontario to Las Vegas, returning Tue, Feb 24, priced at $81 found 5 days ago

Tue, Feb 17 - Tue, Mar 3

ONT

Ontario

LAS

Las Vegas

$83 Roundtrip, found 5 days ago

$83

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Feb 17 from Ontario to Las Vegas, returning Tue, Mar 3, priced at $83 found 5 days ago

Tue, Dec 30 - Thu, Jan 15

ONT

Ontario

LAS

Las Vegas

$84 Roundtrip, found 6 days ago

$84

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Dec 30 from Ontario to Las Vegas, returning Thu, Jan 15, priced at $84 found 6 days ago

Sun, Feb 8 - Mon, Feb 23

ONT

Ontario

LAS

Las Vegas

$88 Roundtrip, found 5 days ago

$88

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Feb 8 from Ontario to Las Vegas, returning Mon, Feb 23, priced at $88 found 5 days ago

Wed, Feb 18 - Mon, Mar 2

ONT

Ontario

LAS

Las Vegas

$90 Roundtrip, found 5 days ago

$90

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Feb 18 from Ontario to Las Vegas, returning Mon, Mar 2, priced at $90 found 5 days ago

Tue, Dec 30 - Sun, Jan 18

ONT

Ontario

LAS

Las Vegas

$97 Roundtrip, found 6 days ago

$97

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Dec 30 from Ontario to Las Vegas, returning Sun, Jan 18, priced at $97 found 6 days ago

Fri, Jan 16 - Tue, Jan 27

ONT

Ontario

LAS

Las Vegas

$98 Roundtrip, found 6 days ago

$98

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Jan 16 from Ontario to Las Vegas, returning Tue, Jan 27, priced at $98 found 6 days ago

Wed, Feb 25 - Mon, Mar 9

ONT

Ontario

LAS

Las Vegas

$100 Roundtrip, found 5 days ago

$100

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Feb 25 from Ontario to Las Vegas, returning Mon, Mar 9, priced at $100 found 5 days ago

Sat, Feb 14 - Mon, Feb 23

ONT

Ontario

LAS

Las Vegas

$101 Roundtrip, found 5 days ago

$101

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Feb 14 from Ontario to Las Vegas, returning Mon, Feb 23, priced at $101 found 5 days ago

Mon, Dec 29 - Sun, Jan 4

ONT

Ontario

LAS

Las Vegas

$108 Roundtrip, found 19 hours ago

$108

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Mon, Dec 29 from Ontario to Las Vegas, returning Sun, Jan 4, priced at $108 found 19 hours ago

Tue, Dec 30 - Sat, Jan 3

ONT

Ontario

LAS

Las Vegas

$109 Roundtrip, found 19 hours ago

$109

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Tue, Dec 30 from Ontario to Las Vegas, returning Sat, Jan 3, priced at $109 found 19 hours ago