$146 Cheap Delta flights Ontario Intl. Airport (ONT) to Chicago (ORD)

$146 Cheap Delta flights Ontario Intl. Airport (ONT) to Chicago (ORD)

Prices were available within the past 7 days and start at $146 for one-way flights and $427 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 18 - Tue, Dec 1

ONT

Ontario

ORD

Chicago

$427 Roundtrip, found 18 hours ago

$427

Roundtrip

found 18 hours ago

Select Delta flight, departing Wed, Nov 18 from Ontario to Chicago, returning Tue, Dec 1, priced at $427 found 18 hours ago

Sat, Nov 21 - Tue, Dec 1

ONT

Ontario

ORD

Chicago

$447 Roundtrip, found 13 hours ago

$447

Roundtrip

found 13 hours ago

Select Delta flight, departing Sat, Nov 21 from Ontario to Chicago, returning Tue, Dec 1, priced at $447 found 13 hours ago

Mon, Nov 23 - Fri, Nov 27

ONT

Ontario

ORD

Chicago

$467 Roundtrip, found 18 hours ago

$467

Roundtrip

found 18 hours ago

Select Delta flight, departing Mon, Nov 23 from Ontario to Chicago, returning Fri, Nov 27, priced at $467 found 18 hours ago

Sat, Nov 21 - Tue, Dec 1

ONT

Ontario

ORD

Chicago

$543 Roundtrip, found 13 hours ago

$543

Roundtrip

found 13 hours ago

Select Delta flight, departing Sat, Nov 21 from Ontario to Chicago, returning Tue, Dec 1, priced at $543 found 13 hours ago

Wed, Nov 18 - Mon, Nov 30

ONT

Ontario

ORD

Chicago

$570 Roundtrip, found 18 hours ago

$570

Roundtrip

found 18 hours ago

Select Delta flight, departing Wed, Nov 18 from Ontario to Chicago, returning Mon, Nov 30, priced at $570 found 18 hours ago

Mon, Nov 23 - Mon, Nov 30

ONT

Ontario

ORD

Chicago

$590 Roundtrip, found 18 hours ago

$590

Roundtrip

found 18 hours ago

Select Delta flight, departing Mon, Nov 23 from Ontario to Chicago, returning Mon, Nov 30, priced at $590 found 18 hours ago