$163 Cheap Frontier Airlines flights Milwaukee (MKE) to Ontario (ONT)

$163 Cheap Frontier Airlines flights Milwaukee (MKE) to Ontario (ONT)

Prices were available within the past 7 days and start at $163 for one-way flights and $326 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 1 - Mon, Aug 4

MKE

Milwaukee

ONT

Ontario

$326 Roundtrip, found 1 day ago

$326

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Milwaukee to Ontario, returning Mon, Aug 4, priced at $326 found 1 day ago

Fri, Aug 1 - Thu, Aug 7

MKE

Milwaukee

ONT

Ontario

$366 Roundtrip, found 1 day ago

$366

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Milwaukee to Ontario, returning Thu, Aug 7, priced at $366 found 1 day ago

Fri, Aug 1 - Fri, Aug 8

MKE

Milwaukee

ONT

Ontario

$370 Roundtrip, found 1 day ago

$370

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Milwaukee to Ontario, returning Fri, Aug 8, priced at $370 found 1 day ago

Mon, Aug 4 - Thu, Aug 7

MKE

Milwaukee

ONT

Ontario

$406 Roundtrip, found 1 day ago

$406

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Milwaukee to Ontario, returning Thu, Aug 7, priced at $406 found 1 day ago

Mon, Aug 4 - Fri, Aug 8

MKE

Milwaukee

ONT

Ontario

$410 Roundtrip, found 1 day ago

$410

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Milwaukee to Ontario, returning Fri, Aug 8, priced at $410 found 1 day ago

Mon, Aug 4 - Thu, Aug 7

MKE

Milwaukee

ONT

Ontario

$461 Roundtrip, found 1 day ago

$461

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Milwaukee to Ontario, returning Thu, Aug 7, priced at $461 found 1 day ago