$139 Cheap Delta flights Philadelphia (PHL) to Ontario (ONT)

$139 Cheap Delta flights Philadelphia (PHL) to Ontario (ONT)

Prices were available within the past 7 days and start at $139 for one-way flights and $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 10 - Wed, Feb 11

PHL

Philadelphia

ONT

Ontario

$277 Roundtrip, found 15 hours ago

$277

Roundtrip

found 15 hours ago

Select Delta flight, departing Tue, Feb 10 from Philadelphia to Ontario, returning Wed, Feb 11, priced at $277 found 15 hours ago

Sat, Feb 7 - Wed, Feb 11

PHL

Philadelphia

ONT

Ontario

$297 Roundtrip, found 15 hours ago

$297

Roundtrip

found 15 hours ago

Select Delta flight, departing Sat, Feb 7 from Philadelphia to Ontario, returning Wed, Feb 11, priced at $297 found 15 hours ago

Sat, Aug 30 - Tue, Sep 9

PHL

Philadelphia

ONT

Ontario

$312 Roundtrip, found 22 hours ago

$312

Roundtrip

found 22 hours ago

Select Delta flight, departing Sat, Aug 30 from Philadelphia to Ontario, returning Tue, Sep 9, priced at $312 found 22 hours ago

Sat, Aug 30 - Thu, Sep 4

PHL

Philadelphia

ONT

Ontario

$323 Roundtrip, found 20 hours ago

$323

Roundtrip

found 20 hours ago

Select Delta flight, departing Sat, Aug 30 from Philadelphia to Ontario, returning Thu, Sep 4, priced at $323 found 20 hours ago

Sat, Aug 30 - Fri, Sep 5

PHL

Philadelphia

ONT

Ontario

$342 Roundtrip, found 22 hours ago

$342

Roundtrip

found 22 hours ago

Select Delta flight, departing Sat, Aug 30 from Philadelphia to Ontario, returning Fri, Sep 5, priced at $342 found 22 hours ago

Mon, Feb 9 - Sat, Feb 14

PHL

Philadelphia

ONT

Ontario

$367 Roundtrip, found 15 hours ago

$367

Roundtrip

found 15 hours ago

Select Delta flight, departing Mon, Feb 9 from Philadelphia to Ontario, returning Sat, Feb 14, priced at $367 found 15 hours ago