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

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

Prices were available within the past 7 days and start at for one-way flights and $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 15 - Fri, Aug 22

ONT

Ontario

MKE

Milwaukee

$280 Roundtrip, found 10 hours ago

$280

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Fri, Aug 15 from Ontario to Milwaukee, returning Fri, Aug 22, priced at $280 found 10 hours ago

Thu, Aug 14 - Fri, Aug 22

ONT

Ontario

MKE

Milwaukee

$310 Roundtrip, found 10 hours ago

$310

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Thu, Aug 14 from Ontario to Milwaukee, returning Fri, Aug 22, priced at $310 found 10 hours ago

Sun, Aug 10 - Fri, Aug 22

ONT

Ontario

MKE

Milwaukee

$401 Roundtrip, found 10 hours ago

$401

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Sun, Aug 10 from Ontario to Milwaukee, returning Fri, Aug 22, priced at $401 found 10 hours ago