$147 Cheap United flights Chicago (ORD) to Ontario (ONT)

$147 Cheap United flights Chicago (ORD) to Ontario (ONT)

Prices were available within the past 7 days and start at $147 for one-way flights and $253 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 27 - Sat, Aug 30

ORD

Chicago

ONT

Ontario

$253 Roundtrip, found 4 days ago

$253

Roundtrip

found 4 days ago

Select United flight, departing Wed, Aug 27 from Chicago to Ontario, returning Sat, Aug 30, priced at $253 found 4 days ago

Thu, May 22 - Tue, Jun 17

ORD

Chicago

ONT

Ontario

$373 Roundtrip, found 2 days ago

$373

Roundtrip

found 2 days ago

Select United flight, departing Thu, May 22 from Chicago to Ontario, returning Tue, Jun 17, priced at $373 found 2 days ago

Thu, May 22 - Mon, Jun 16

ORD

Chicago

ONT

Ontario

$409 Roundtrip, found 1 day ago

$409

Roundtrip

found 1 day ago

Select United flight, departing Thu, May 22 from Chicago to Ontario, returning Mon, Jun 16, priced at $409 found 1 day ago

Sat, May 24 - Tue, Jun 17

ORD

Chicago

ONT

Ontario

$415 Roundtrip, found 2 days ago

$415

Roundtrip

found 2 days ago

Select United flight, departing Sat, May 24 from Chicago to Ontario, returning Tue, Jun 17, priced at $415 found 2 days ago

Fri, May 23 - Mon, Jun 16

ORD

Chicago

ONT

Ontario

$432 Roundtrip, found 2 days ago

$432

Roundtrip

found 2 days ago

Select United flight, departing Fri, May 23 from Chicago to Ontario, returning Mon, Jun 16, priced at $432 found 2 days ago

Thu, May 22 - Tue, Jun 17

ORD

Chicago

ONT

Ontario

$463 Roundtrip, found 2 days ago

$463

Roundtrip

found 2 days ago

Select United flight, departing Thu, May 22 from Chicago to Ontario, returning Tue, Jun 17, priced at $463 found 2 days ago