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

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

Prices were available within the past 7 days and start at for one-way flights and $279 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Tue, Apr 28

ONT

Ontario

SFO

San Francisco

$279 Roundtrip, found 23 hours ago

$279

Roundtrip

found 23 hours ago

Select United flight, departing Tue, Apr 21 from Ontario to San Francisco, returning Tue, Apr 28, priced at $279 found 23 hours ago

Tue, Apr 21 - Mon, Apr 27

ONT

Ontario

SFO

San Francisco

$299 Roundtrip, found 23 hours ago

$299

Roundtrip

found 23 hours ago

Select United flight, departing Tue, Apr 21 from Ontario to San Francisco, returning Mon, Apr 27, priced at $299 found 23 hours ago

Thu, Apr 23 - Mon, Apr 27

ONT

Ontario

SFO

San Francisco

$319 Roundtrip, found 23 hours ago

$319

Roundtrip

found 23 hours ago

Select United flight, departing Thu, Apr 23 from Ontario to San Francisco, returning Mon, Apr 27, priced at $319 found 23 hours ago

Mon, Apr 20 - Tue, Apr 28

ONT

Ontario

SFO

San Francisco

$368 Roundtrip, found 23 hours ago

$368

Roundtrip

found 23 hours ago

Select United flight, departing Mon, Apr 20 from Ontario to San Francisco, returning Tue, Apr 28, priced at $368 found 23 hours ago

Mon, Apr 20 - Mon, Apr 27

ONT

Ontario

SFO

San Francisco

$388 Roundtrip, found 23 hours ago

$388

Roundtrip

found 23 hours ago

Select United flight, departing Mon, Apr 20 from Ontario to San Francisco, returning Mon, Apr 27, priced at $388 found 23 hours ago