Cheap Delta flights Ontario (ONT) to Chicago (ORD)

Cheap Delta flights Ontario (ONT) to Chicago (ORD)

Prices were available within the past 7 days and start at for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 9 - Mon, Jun 16

ONT

Ontario

ORD

Chicago

$257 Roundtrip, found 16 hours ago

$257

Roundtrip

found 16 hours ago

Select Delta flight, departing Mon, Jun 9 from Ontario to Chicago, returning Mon, Jun 16, priced at $257 found 16 hours ago

Tue, Jun 10 - Sun, Jun 15

ONT

Ontario

ORD

Chicago

$328 Roundtrip, found 16 hours ago

$328

Roundtrip

found 16 hours ago

Select Delta flight, departing Tue, Jun 10 from Ontario to Chicago, returning Sun, Jun 15, priced at $328 found 16 hours ago