- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Plan, book, fly with confidence
Cheap Flights from San Francisco to Apple Valley (SJC-ONT)
Prices were available within the past 7 days and start at $24 for one-way flights and $43 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Aug 6 - Tue, Aug 6
SFO
San Francisco
ONT
Ontario
$43 Roundtrip, just found
$43
Roundtrip
just found
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Wed, Sep 4 - Sat, Sep 14
SFO
San Francisco
ONT
Ontario
$48 Roundtrip, just found
$48
Roundtrip
just found
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Jul 23 - Tue, Jul 23
SFO
San Francisco
ONT
Ontario
$53 Roundtrip, found 3 hours ago
$53
Roundtrip
found 3 hours ago
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Sat, Aug 10 - Mon, Aug 12
SFO
San Francisco
ONT
Ontario
$53 Roundtrip, just found
$53
Roundtrip
just found
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Wed, Sep 4 - Mon, Sep 16
SFO
San Francisco
ONT
Ontario
$57 Roundtrip, just found
$57
Roundtrip
just found
![Breeze Airways](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif)
Thu, Sep 12 - Sun, Sep 15
SFO
San Francisco
SBD
San Bernardino
$82 Roundtrip, found 4 hours ago
$82
Roundtrip
found 4 hours ago
Nearby Cities
*Available to One Key members.