$130 Cheap Frontier Airlines flights Baltimore (BWI) to Ontario (ONT)

$130 Cheap Frontier Airlines flights Baltimore (BWI) to Ontario (ONT)

Prices were available within the past 7 days and start at $130 for one-way flights and $235 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Fri, May 1

BWI

Baltimore

ONT

Ontario

$235 Roundtrip, found 8 hours ago

$235

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Baltimore to Ontario, returning Fri, May 1, priced at $235 found 8 hours ago

Sat, Apr 11 - Fri, Apr 17

BWI

Baltimore

ONT

Ontario

$245 Roundtrip, found 9 hours ago

$245

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sat, Apr 11 from Baltimore to Ontario, returning Fri, Apr 17, priced at $245 found 9 hours ago

Mon, Apr 20 - Fri, May 1

BWI

Baltimore

ONT

Ontario

$266 Roundtrip, found 8 hours ago

$266

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Mon, Apr 20 from Baltimore to Ontario, returning Fri, May 1, priced at $266 found 8 hours ago

Fri, Apr 24 - Fri, May 1

BWI

Baltimore

ONT

Ontario

$280 Roundtrip, found 8 hours ago

$280

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Fri, Apr 24 from Baltimore to Ontario, returning Fri, May 1, priced at $280 found 8 hours ago