Cheap Frontier Airlines flights New York (LGA) to Ontario (ONT)

Cheap Frontier Airlines flights New York (LGA) to Ontario (ONT)

Prices were available within the past 7 days and start at for one-way flights and $206 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 5 - Thu, Nov 20

LGA

New York

ONT

Ontario

$206 Roundtrip, found 19 hours ago

$206

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Wed, Nov 5 from New York to Ontario, returning Thu, Nov 20, priced at $206 found 19 hours ago

Wed, Nov 5 - Mon, Nov 17

LGA

New York

ONT

Ontario

$232 Roundtrip, found 19 hours ago

$232

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Wed, Nov 5 from New York to Ontario, returning Mon, Nov 17, priced at $232 found 19 hours ago

Thu, Nov 6 - Thu, Nov 20

LGA

New York

ONT

Ontario

$236 Roundtrip, found 19 hours ago

$236

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Thu, Nov 6 from New York to Ontario, returning Thu, Nov 20, priced at $236 found 19 hours ago

Wed, Nov 12 - Mon, Nov 24

LGA

New York

ONT

Ontario

$241 Roundtrip, found 19 hours ago

$241

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Wed, Nov 12 from New York to Ontario, returning Mon, Nov 24, priced at $241 found 19 hours ago

Thu, Nov 13 - Wed, Nov 26

LGA

New York

ONT

Ontario

$262 Roundtrip, found 19 hours ago

$262

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Thu, Nov 13 from New York to Ontario, returning Wed, Nov 26, priced at $262 found 19 hours ago

Wed, Nov 5 - Sun, Nov 16

LGA

New York

ONT

Ontario

$282 Roundtrip, found 19 hours ago

$282

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Wed, Nov 5 from New York to Ontario, returning Sun, Nov 16, priced at $282 found 19 hours ago

Sat, Dec 27 - Sat, Jan 17

LGA

New York

ONT

Ontario

$496 Roundtrip, found 19 hours ago

$496

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Sat, Dec 27 from New York to Ontario, returning Sat, Jan 17, priced at $496 found 19 hours ago

Sun, Nov 30 - Fri, Dec 19

LGA

New York

ONT

Ontario

$769 Roundtrip, found 19 hours ago

$769

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Sun, Nov 30 from New York to Ontario, returning Fri, Dec 19, priced at $769 found 19 hours ago