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

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

Prices were available within the past 7 days and start at $44 for one-way flights and $68 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 18 - Thu, May 22

ONT

Ontario

LAS

Las Vegas

$68 Roundtrip, found 2 days ago

$68

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, May 18 from Ontario to Las Vegas, returning Thu, May 22, priced at $68 found 2 days ago

Tue, Jul 29 - Tue, Jul 29

ONT

Ontario

LAS

Las Vegas

$80 Roundtrip, found 17 hours ago

$80

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Tue, Jul 29 from Ontario to Las Vegas, returning Tue, Jul 29, priced at $80 found 17 hours ago

Sat, Jul 26 - Tue, Jul 29

ONT

Ontario

LAS

Las Vegas

$84 Roundtrip, found 17 hours ago

$84

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sat, Jul 26 from Ontario to Las Vegas, returning Tue, Jul 29, priced at $84 found 17 hours ago

Fri, May 23 - Fri, May 23

ONT

Ontario

LAS

Las Vegas

$85 Roundtrip, found 5 days ago

$85

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, May 23 from Ontario to Las Vegas, returning Fri, May 23, priced at $85 found 5 days ago

Sat, Jul 26 - Thu, Jul 31

ONT

Ontario

LAS

Las Vegas

$88 Roundtrip, found 17 hours ago

$88

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sat, Jul 26 from Ontario to Las Vegas, returning Thu, Jul 31, priced at $88 found 17 hours ago

Sun, May 18 - Mon, May 19

ONT

Ontario

LAS

Las Vegas

$92 Roundtrip, found 2 days ago

$92

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, May 18 from Ontario to Las Vegas, returning Mon, May 19, priced at $92 found 2 days ago