$34 Cheap Frontier Airlines flights Ontario (ONT) to Las Vegas (LAS)

$34 Cheap Frontier Airlines flights Ontario (ONT) to Las Vegas (LAS)

Prices were available within the past 7 days and start at $34 for one-way flights and $68 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Feb 23 - Fri, Feb 27

ONT

Ontario

LAS

Las Vegas

$68 Roundtrip, found 3 days ago

$68

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Feb 23 from Ontario to Las Vegas, returning Fri, Feb 27, priced at $68 found 3 days ago

Sat, Feb 21 - Fri, Feb 27

ONT

Ontario

LAS

Las Vegas

$70 Roundtrip, found 3 days ago

$70

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Feb 21 from Ontario to Las Vegas, returning Fri, Feb 27, priced at $70 found 3 days ago

Sat, Feb 21 - Mon, Feb 23

ONT

Ontario

LAS

Las Vegas

$72 Roundtrip, found 3 days ago

$72

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Feb 21 from Ontario to Las Vegas, returning Mon, Feb 23, priced at $72 found 3 days ago

Mon, Feb 23 - Sat, Feb 28

ONT

Ontario

LAS

Las Vegas

$74 Roundtrip, found 3 days ago

$74

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Feb 23 from Ontario to Las Vegas, returning Sat, Feb 28, priced at $74 found 3 days ago

Sat, Feb 21 - Sat, Feb 28

ONT

Ontario

LAS

Las Vegas

$76 Roundtrip, found 3 days ago

$76

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Feb 21 from Ontario to Las Vegas, returning Sat, Feb 28, priced at $76 found 3 days ago

Sun, Dec 28 - Tue, Jan 6

ONT

Ontario

LAS

Las Vegas

$88 Roundtrip, found 3 days ago

$88

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Dec 28 from Ontario to Las Vegas, returning Tue, Jan 6, priced at $88 found 3 days ago