$130 Cheap United flights Washington (IAD) to Ontario (ONT)

$130 Cheap United flights Washington (IAD) to Ontario (ONT)

Prices were available within the past 7 days and start at $130 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 13 - Tue, Jan 13

IAD

Washington

ONT

Ontario

$259 Roundtrip, found 8 hours ago

$259

Roundtrip

found 8 hours ago

Select United flight, departing Sat, Dec 13 from Washington to Ontario, returning Tue, Jan 13, priced at $259 found 8 hours ago

Wed, Dec 10 - Tue, Dec 16

IAD

Washington

ONT

Ontario

$275 Roundtrip, found 1 day ago

$275

Roundtrip

found 1 day ago

Select United flight, departing Wed, Dec 10 from Washington to Ontario, returning Tue, Dec 16, priced at $275 found 1 day ago

Mon, Dec 8 - Thu, Dec 11

IAD

Washington

ONT

Ontario

$293 Roundtrip, found 1 hour ago

$293

Roundtrip

found 1 hour ago

Select United flight, departing Mon, Dec 8 from Washington to Ontario, returning Thu, Dec 11, priced at $293 found 1 hour ago