Cheap United flights Louisville (SDF) to Ontario (ONT)

Cheap United flights Louisville (SDF) to Ontario (ONT)

Prices were available within the past 7 days and start at for one-way flights and $584 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 29 - Thu, Jan 1

SDF

Louisville

ONT

Ontario

$584 Roundtrip, found 2 hours ago

$584

Roundtrip

found 2 hours ago

Select United flight, departing Mon, Dec 29 from Louisville to Ontario, returning Thu, Jan 1, priced at $584 found 2 hours ago

Mon, Dec 29 - Mon, Jan 5

SDF

Louisville

ONT

Ontario

$642 Roundtrip, found 2 hours ago

$642

Roundtrip

found 2 hours ago

Select United flight, departing Mon, Dec 29 from Louisville to Ontario, returning Mon, Jan 5, priced at $642 found 2 hours ago

Fri, Dec 12 - Thu, Jan 1

SDF

Louisville

ONT

Ontario

$654 Roundtrip, found 1 day ago

$654

Roundtrip

found 1 day ago

Select United flight, departing Fri, Dec 12 from Louisville to Ontario, returning Thu, Jan 1, priced at $654 found 1 day ago

Sun, Dec 28 - Thu, Jan 1

SDF

Louisville

ONT

Ontario

$734 Roundtrip, found 2 hours ago

$734

Roundtrip

found 2 hours ago

Select United flight, departing Sun, Dec 28 from Louisville to Ontario, returning Thu, Jan 1, priced at $734 found 2 hours ago

Sun, Dec 7 - Sun, Dec 21

SDF

Louisville

ONT

Ontario

$742 Roundtrip, found 1 day ago

$742

Roundtrip

found 1 day ago

Select United flight, departing Sun, Dec 7 from Louisville to Ontario, returning Sun, Dec 21, priced at $742 found 1 day ago

Thu, Dec 4 - Mon, Dec 22

SDF

Louisville

ONT

Ontario

$822 Roundtrip, found 1 day ago

$822

Roundtrip

found 1 day ago

Select United flight, departing Thu, Dec 4 from Louisville to Ontario, returning Mon, Dec 22, priced at $822 found 1 day ago