Find Deals on Flights from North America to Ontario

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from North America to Ontario

(Round-trip)
Depart: Thu Dec 29 2016 Return: Wed Jan 4 2017 Trip spans 7 days
United
United
SFO
ONT
1h 24m
nonstop
ONT
SFO
1h 29m
nonstop
Depart: Sat Dec 31 2016 Return: Thu Jan 5 2017 Trip spans 6 days
Major Airline
Major Airline
SFO
ONT
5h 53m
nonstop
ONT
SFO
6h 05m
nonstop
Depart: Tue Apr 11 2017 Return: Thu Apr 13 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
PDX
ONT
2h 13m
nonstop
ONT
PDX
2h 20m
nonstop
Depart: Wed Dec 28 2016 Return: Tue Jan 17 2017 Trip spans 21 days
Delta
Delta
SLC
ONT
2h 05m
nonstop
ONT
SLC
1h 46m
nonstop
Depart: Wed Jan 11 2017 Return: Tue Jan 17 2017 Trip spans 7 days
American Airlines
American Airlines
ORD
ONT
6h 00m
1 stop
ONT
ORD
5h 44m
1 stop
Depart: Wed Feb 1 2017 Return: Sat Feb 4 2017 Trip spans 4 days
Southwest
Southwest
DFW
ONT
3h 20m
nonstop
ONT
DFW
3h 00m
nonstop
Depart: Sat Jan 7 2017 Return: Mon Jan 9 2017 Trip spans 3 days
United
United
SFO
ONT
1h 28m
nonstop
ONT
SFO
1h 29m
nonstop
Depart: Mon Jan 23 2017 Return: Thu Jan 26 2017 Trip spans 4 days
Major Airline
Major Airline
SFO
ONT
0h 43m
nonstop
ONT
SFO
0h 43m
nonstop
Depart: Sun Mar 5 2017 Return: Wed Mar 8 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
PDX
ONT
2h 13m
nonstop
ONT
PDX
2h 22m
nonstop
Depart: Wed Feb 15 2017 Return: Sun Feb 19 2017 Trip spans 5 days
Major Airline
Major Airline
SFO
ONT
8h 54m
nonstop
ONT
SFO
5h 30m
nonstop
Depart: Sat Apr 1 2017 Return: Sat Apr 8 2017 Trip spans 8 days
United
United
SFO
ONT
1h 26m
nonstop
ONT
SFO
1h 23m
nonstop
Depart: Sun Mar 19 2017 Return: Tue Mar 21 2017 Trip spans 3 days
Major Airline
Major Airline
SFO
ONT
11h 16m
nonstop
ONT
SFO
5h 45m
nonstop
Depart: Mon May 1 2017 Return: Mon May 8 2017 Trip spans 8 days
United
United
SFO
ONT
1h 18m
nonstop
ONT
SFO
1h 18m
nonstop
Depart: Sun Jan 22 2017 Return: Mon Jan 30 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
PDX
ONT
2h 13m
nonstop
ONT
PDX
2h 22m
nonstop
Depart: Thu Apr 20 2017 Return: Sun Apr 23 2017 Trip spans 4 days
Major Airline
Major Airline
SFO
ONT
8h 00m
nonstop
ONT
SFO
5h 41m
nonstop
Depart: Sun Feb 5 2017 Return: Wed Feb 8 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
PDX
ONT
2h 13m
nonstop
ONT
PDX
2h 22m
nonstop
Depart: Thu Dec 29 2016 Return: Sat Dec 31 2016 Trip spans 3 days
Delta
Delta
SLC
ONT
2h 05m
nonstop
ONT
SLC
1h 45m
nonstop
Depart: Tue Jan 10 2017 Return: Sun Jan 15 2017 Trip spans 6 days
United
United
PDX
ONT
5h 28m
1 stop
ONT
PDX
6h 00m
1 stop
Depart: Sun Feb 12 2017 Return: Tue Feb 14 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
PDX
ONT
2h 13m
nonstop
ONT
PDX
2h 22m
nonstop
Depart: Sat Apr 15 2017 Return: Wed Apr 19 2017 Trip spans 5 days
Major Airline
Major Airline
PDX
ONT
2h 13m
nonstop
ONT
PDX
2h 20m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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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
$117
Portland
$125
Chicago
$194
Salt Lake City
$167
Dallas
$206
Destination

Ontario
$117
Airlines Airline reviews

57 travelers who booked a flight from San Francisco to Ontario rated their chosen airlines with an average of 7.3.

Overall
7.5
Boarding
7.5
Crew
7.9
Comfort
7.4
Food
6.8
Entertainment
6.6