$104 Cheap Frontier Airlines flights Washington (IAD) to Ontario (ONT)

$104 Cheap Frontier Airlines flights Washington (IAD) to Ontario (ONT)

Prices were available within the past 7 days and start at $104 for one-way flights and $392 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jun 13 - Sat, Jun 14

IAD

Washington

ONT

Ontario

$392 Roundtrip, found 1 day ago

$392

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Washington to Ontario, returning Sat, Jun 14, priced at $392 found 1 day ago