$59 Cheap United flights San Francisco (SFO) to Ontario (ONT)

$59 Cheap United flights San Francisco (SFO) to Ontario (ONT)

Prices were available within the past 7 days and start at $59 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jul 20 - Wed, Jul 23

SFO

San Francisco

ONT

Ontario

$117 Roundtrip, found 17 hours ago

$117

Roundtrip

found 17 hours ago

Select United flight, departing Sun, Jul 20 from San Francisco to Ontario, returning Wed, Jul 23, priced at $117 found 17 hours ago

Mon, Jun 23 - Tue, Jul 1

SFO

San Francisco

ONT

Ontario

$187 Roundtrip, found 2 days ago

$187

Roundtrip

found 2 days ago

Select United flight, departing Mon, Jun 23 from San Francisco to Ontario, returning Tue, Jul 1, priced at $187 found 2 days ago