$105 Cheap Frontier Airlines flights Ontario (ONT) to Chicago (ORD)

$105 Cheap Frontier Airlines flights Ontario (ONT) to Chicago (ORD)

Prices were available within the past 7 days and start at $105 for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Apr 17 - Tue, May 5

ONT

Ontario

ORD

Chicago

$190 Roundtrip, found 22 hours ago

$190

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Chicago, returning Tue, May 5, priced at $190 found 22 hours ago

Fri, Apr 17 - Tue, May 5

ONT

Ontario

ORD

Chicago

$195 Roundtrip, found 22 hours ago

$195

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Chicago, returning Tue, May 5, priced at $195 found 22 hours ago

Fri, Apr 17 - Tue, May 5

ONT

Ontario

ORD

Chicago

$215 Roundtrip, found 22 hours ago

$215

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Chicago, returning Tue, May 5, priced at $215 found 22 hours ago

Fri, Apr 17 - Tue, May 5

ONT

Ontario

ORD

Chicago

$220 Roundtrip, found 22 hours ago

$220

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Chicago, returning Tue, May 5, priced at $220 found 22 hours ago

Fri, Apr 17 - Tue, May 5

ONT

Ontario

ORD

Chicago

$295 Roundtrip, found 22 hours ago

$295

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Chicago, returning Tue, May 5, priced at $295 found 22 hours ago

Fri, Apr 17 - Tue, May 5

ONT

Ontario

ORD

Chicago

$369 Roundtrip, found 22 hours ago

$369

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Chicago, returning Tue, May 5, priced at $369 found 22 hours ago