When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 16 days in advance, which can save you up to 73% on flights from North America to Ontario compared to booking the week you need them. Waiting 16 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $412. For sooner than that we have options available in the next 3 days from $571.
The best pricing can be found in the month of September. Prices to Ontario from North America average $365. You can even find prices in September for less than $365, as users have found deals to Ontario from as low as $132. The month of December appears to be one of the more expensive times to travel to Ontario from North America. Flying in the targeted month can save you up to 32%.
When flying from North America to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$48 - $157
Route
Depart
Return
Price
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 6/1
Nonstop1h 24m
Ontario
Mon 6/3
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Mon 6/3
Nonstop1h 24m
Ontario
Sat 6/15
Nonstop1h 27m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 5/21
Nonstop1h 24m
Ontario
Thu 5/23
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 6/1
Nonstop1h 24m
Ontario
Mon 6/3
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Mon 5/20
Nonstop1h 24m
Ontario
Tue 5/21
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 5/18
Nonstop1h 24m
Ontario
Tue 5/21
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Thu 5/30
Nonstop1h 24m
Ontario
Thu 5/30
Nonstop1h 28m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Fri 8/16
Nonstop2h 37m
Ontario
Wed 8/21
Nonstop2h 45m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Tue 6/25
Nonstop2h 43m
Ontario
Wed 7/3
Nonstop2h 48m
No data available for this route at this time. Please check back soon.
Comfort
Overall
Entertainment
Boarding
Crew
Food
Reviews
The free WiFi was so bad, I couldn’t even watch an inflight movie.
Comfort
Overall
Entertainment
Boarding
Crew
Food
Reviews
The free WiFi was so bad, I couldn’t even watch an inflight movie.
Comfort
Overall
Entertainment
Boarding
Crew
Food
Reviews
The free WiFi was so bad, I couldn’t even watch an inflight movie.
Comfort
Overall
Entertainment
Boarding
Crew
Food
Reviews
The free WiFi was so bad, I couldn’t even watch an inflight movie.
Comfort
Overall
Entertainment
Boarding
Crew
Food
Reviews
The free WiFi was so bad, I couldn’t even watch an inflight movie.
Comfort
Overall
Entertainment
Boarding
Crew
Food
Reviews
The free WiFi was so bad, I couldn’t even watch an inflight movie.
10%of flight departures | Early morningMidnight to 6 am |
---|---|
33%of flight departures | Morning6 am to noon |
25%of flight departures | AfternoonNoon to 6 pm |
32%of flight departures | Evening6 pm to midnight |
Cheapflights makes it easy to find North America to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from North America.
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Yes, Cheapflights offers price alerts on North America to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.