Find Deals on Flights from Ontario to San Francisco (ONT - SFO)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Ontario to San Francisco

(Round-trip)
Depart: Wed Aug 31 2016 Return: Tue Sep 6 2016 Trip spans 7 days
Depart: Thu Sep 1 2016 Return: Tue Sep 6 2016 Trip spans 6 days
Depart: Fri Jun 17 2016 Return: Sun Jun 19 2016 Trip spans 3 days
Depart: Wed Jun 29 2016 Return: Thu Jun 30 2016 Trip spans 2 days
Depart: Sat Aug 13 2016 Return: Sun Aug 14 2016 Trip spans 2 days
Depart: Fri Sep 30 2016 Return: Sun Oct 2 2016 Trip spans 3 days
Depart: Fri Jul 1 2016 Return: Tue Jul 19 2016 Trip spans 19 days
Depart: Thu Jul 14 2016 Return: Mon Jul 18 2016 Trip spans 5 days
Depart: Thu Jul 28 2016 Return: Sun Jul 31 2016 Trip spans 4 days
Depart: Fri Aug 19 2016 Return: Sun Aug 21 2016 Trip spans 3 days
Depart: Tue Oct 4 2016 Return: Tue Oct 11 2016 Trip spans 8 days
Depart: Wed Oct 19 2016 Return: Sat Oct 22 2016 Trip spans 4 days
Depart: Sat Jul 2 2016 Return: Mon Jul 4 2016 Trip spans 3 days
Depart: Sat Nov 19 2016 Return: Mon Nov 21 2016 Trip spans 3 days
Depart: Sun May 29 2016 Return: Thu Jun 23 2016 Trip spans 26 days
Depart: Fri Sep 23 2016 Return: Sun Sep 25 2016 Trip spans 3 days
Direct flights ONT to SFO on United
Flight # Depart ONT Arrive SFO Sun Mon Tue Wed Thu Fri Sat Valid Between
5014 6:00 am 7:29 am May 21 - Jun 8
5014 6:00 am 7:22 am Jun 9 - Aug 15
5055 8:05 am 9:36 am Jun 15 - Jun 24
5055 8:05 am 9:36 am Jun 26 - Jul 2
5055 8:05 am 9:36 am Jun 25 - Jun 25
5055 8:05 am 9:36 am Jun 9 - Jun 14
5055 8:27 am 9:56 am May 21 - Jun 8
5056 9:18 am 10:47 am May 23 - Jun 8
5056 9:27 am 10:56 am Jun 5 - Jun 5
5056 9:31 am 11:02 am Jun 9 - Jun 14
5056 9:31 am 11:02 am Jun 15 - Aug 15
5015 11:33 am 1:02 pm May 22 - Jun 5
5015 12:00 pm 1:29 pm May 21 - Jun 8
5015 12:46 pm 2:10 pm Jul 1 - Aug 15
5015 12:50 pm 2:14 pm Jun 9 - Jun 30
5017 1:23 pm 2:47 pm Jun 11 - Jun 25
5150 1:40 pm 3:09 pm Jun 4 - Jun 4
5025 3:26 pm 4:55 pm May 21 - Jun 8
5058 5:00 pm 6:29 pm May 31 - Jun 8
5058 5:16 pm 6:45 pm May 22 - Jun 5
5058 5:44 pm 7:08 pm Jul 1 - Jul 9
5058 6:05 pm 7:29 pm Jun 9 - Jun 14
5058 6:05 pm 7:29 pm Jun 15 - Jun 30
5059 7:30 pm 8:54 pm Jun 15 - Jun 30
5059 7:30 pm 8:54 pm Jun 9 - Jun 14
5059 7:36 pm 9:05 pm Jun 5 - Jun 5
5059 7:36 pm 9:04 pm Jun 8 - Jun 8
5059 7:46 pm 9:15 pm Jun 6 - Jun 7
5059 7:46 pm 9:15 pm May 23 - Jun 4
5059 8:05 pm 9:29 pm Jul 1 - Aug 15
5107 8:46 pm 10:15 pm May 30 - Jun 8
5107 9:05 pm 10:34 pm Jun 9 - Jun 30
5107 9:05 pm 10:35 pm Jun 26 - Jun 26
5107 9:06 pm 10:35 pm Jun 12 - Jun 12
5107 9:10 pm 10:39 pm Jun 19 - Jun 19
5107 9:12 pm 10:41 pm Jul 1 - Jul 8
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.

More questions or if you have a bad price to report to us
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Airports
Origin

Ontario
$135
Destination

San Francisco
$135
Airlines