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 74% 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 $413. For sooner than that we have options available in the next 3 days from $576.
The best pricing can be found in the month of September. Prices to Ontario from North America average $366. You can even find prices in September for less than $366, 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
$55 - $186
Route
Depart
Return
Price
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 6/11
Nonstop1h 23m
Ontario
Thu 6/13
Nonstop1h 27m
Denver IntlOntario
DEN - ONT
DENONT
Denver Intl
Mon 6/10
Nonstop2h 20m
Ontario
Tue 6/11
Nonstop2h 20m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 7/30
Nonstop1h 22m
Ontario
Wed 8/21
Nonstop1h 26m
Denver IntlOntario
DEN - ONT
DENONT
Denver Intl
Tue 6/25
Nonstop2h 22m
Ontario
Mon 7/1
Nonstop2h 20m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 6/18
Nonstop1h 23m
Ontario
Wed 6/19
Nonstop1h 28m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 8/20
Nonstop1h 21m
Ontario
Thu 9/12
Nonstop1h 26m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Tue 7/2
Nonstop2h 35m
Ontario
Fri 7/5
Nonstop2h 36m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Tue 8/6
1 stop6h 45m
Ontario
Wed 8/21
1 stop5h 03m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Tue 8/20
Nonstop2h 35m
Ontario
Fri 8/23
1 stop4h 37m
No data available for this route at this time. Please check back soon.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
9%of flight departures | Early morningMidnight to 6 am |
---|---|
24%of flight departures | Morning6 am to noon |
33%of flight departures | AfternoonNoon to 6 pm |
34%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.
Need flexible booking options for your flight to Ontario from North America? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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.