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

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from San Francisco to Ontario

(Round-trip)
Depart: Tue Oct 31 2017 Return: Sat Nov 4 2017 Trip spans 5 days
Frontier
Frontier
SFO
ONT
9h 14m
1 stop
ONT
SFO
12h 38m
1 stop
Depart: Tue Nov 14 2017 Return: Sun Nov 19 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
SFO
ONT
9h 15m
1 stop
ONT
SFO
1h 36m
nonstop
Depart: Wed Nov 8 2017 Return: Mon Nov 13 2017 Trip spans 6 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Wed Nov 8 2017 Return: Sat Nov 11 2017 Trip spans 4 days
American Airlines
American Airlines
SFO
ONT
6h 02m
1 stop
ONT
SFO
6h 15m
1 stop
Depart: Tue Nov 7 2017 Return: Tue Nov 14 2017 Trip spans 8 days
Frontier
Frontier
SFO
ONT
15h 20m
1 stop
ONT
SFO
15h 59m
1 stop
Depart: Thu Nov 9 2017 Return: Mon Nov 13 2017 Trip spans 5 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Thu Nov 9 2017 Return: Mon Nov 13 2017 Trip spans 5 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Sat Nov 11 2017 Return: Mon Nov 13 2017 Trip spans 3 days
American Airlines
American Airlines
SFO
ONT
5h 45m
1 stop
ONT
SFO
6h 29m
1 stop
Depart: Fri Nov 10 2017 Return: Mon Nov 13 2017 Trip spans 4 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Sat Dec 2 2017 Return: Wed Dec 6 2017 Trip spans 5 days
American Airlines
American Airlines
SFO
ONT
6h 02m
1 stop
ONT
SFO
6h 29m
1 stop
Depart: Tue Oct 24 2017 Return: Tue Oct 31 2017 Trip spans 8 days
Frontier
Frontier
SFO
ONT
9h 14m
1 stop
ONT
SFO
15h 59m
1 stop
Depart: Fri Nov 10 2017 Return: Mon Nov 13 2017 Trip spans 4 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Sat Jan 13 2018 Return: Sun Jan 14 2018 Trip spans 2 days
American Airlines
American Airlines
SFO
ONT
6h 36m
1 stop
ONT
SFO
6h 47m
1 stop
Depart: Fri Jan 12 2018 Return: Sun Jan 14 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
SFO
ONT
11h 26m
1 stop
ONT
SFO
1h 34m
nonstop
Depart: Sun Nov 12 2017 Return: Mon Nov 13 2017 Trip spans 2 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Fri Jan 19 2018 Return: Mon Jan 22 2018 Trip spans 4 days
American Airlines
American Airlines
SFO
ONT
6h 36m
1 stop
ONT
SFO
6h 47m
1 stop
Depart: Wed Nov 15 2017 Return: Tue Nov 28 2017 Trip spans 14 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Depart: Sat Jan 27 2018 Return: Mon Jan 29 2018 Trip spans 3 days
American Airlines
American Airlines
SFO
ONT
6h 36m
1 stop
ONT
SFO
6h 47m
1 stop
Depart: Tue Oct 24 2017 Return: Sat Oct 28 2017 Trip spans 5 days
Frontier
Frontier
SFO
ONT
9h 14m
1 stop
ONT
SFO
12h 35m
1 stop
Depart: Fri Nov 24 2017 Return: Tue Nov 28 2017 Trip spans 5 days
United
United
SFO
ONT
1h 27m
nonstop
ONT
SFO
1h 30m
nonstop
Direct flights SFO to ONT on United
Flight # Depart SFO Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
5084 6:00 am 7:27 am Nov 5 - Dec 23
5084 6:00 am 7:27 am Nov 1 - Nov 4
5084 6:00 am 7:27 am Oct 29 - Nov 3
5084 6:00 am 7:29 am Oct 8 - Oct 27
5084 6:00 am 7:29 am Oct 7 - Oct 28
5135 7:26 am 8:53 am Nov 24 - Nov 24
5017 8:30 am 9:59 am Oct 7 - Oct 28
5017 8:30 am 9:57 am Nov 4 - Nov 4
5017 8:30 am 9:57 am Oct 29 - Nov 3
5017 8:30 am 9:57 am Nov 18 - Nov 18
5017 8:30 am 9:57 am Nov 5 - Nov 30
5017 8:33 am 10:00 am Nov 11 - Nov 11
5017 8:35 am 10:04 am Oct 8 - Oct 27
5133 10:25 am 11:52 am Nov 11 - Nov 18
5133 10:25 am 11:52 am Nov 5 - Nov 30
5133 10:25 am 11:52 am Nov 4 - Nov 4
5133 10:25 am 11:52 am Oct 29 - Nov 3
5133 10:40 am 12:09 pm Oct 21 - Oct 28
5133 10:40 am 12:09 pm Oct 18 - Oct 27
5160 2:30 pm 3:57 pm Nov 23 - Nov 30
5160 2:31 pm 3:58 pm Nov 5 - Nov 22
5160 2:31 pm 3:58 pm Oct 29 - Nov 4
5160 2:40 pm 4:09 pm Oct 11 - Oct 28
5086 5:33 pm 7:00 pm Oct 29 - Oct 31
5086 5:35 pm 7:02 pm Nov 1 - Nov 4
5086 5:35 pm 7:02 pm Nov 5 - Dec 19
5086 5:41 pm 7:10 pm Oct 7 - Oct 28
5087 7:40 pm 9:09 pm Oct 7 - Oct 28
5087 7:40 pm 9:07 pm Oct 29 - Oct 31
5087 7:43 pm 9:10 pm Nov 26 - Nov 26
5087 7:45 pm 9:12 pm Nov 25 - Dec 2
5087 7:45 pm 9:12 pm Nov 1 - Nov 4
5087 7:45 pm 9:12 pm Nov 5 - Nov 23
5027 10:30 pm 11:56 pm Oct 19 - Oct 28
5027 10:35 pm 12:01 am Oct 29 - Nov 4
5027 10:35 pm 12:01 am Nov 5 - Nov 25
5027 10:58 pm 12:24 am Nov 26 - Nov 26
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

Here's why:

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

We compile tonnes 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 can'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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

San Francisco
$142
Destination

Ontario
$142
Airlines Airline reviews

79 travelers who booked a flight from San Francisco to Ontario rated their chosen airlines with an average of 6.8.

Overall
6.9
Boarding
6.8
Crew
7.4
Comfort
6.8
Food
6.1
Entertainment
6.0