Flights from San Francisco International Airport to Ontario

Travellers and cabin class

Flight deals from San Francisco International Airport to Ontario

Looking for cheap tickets from San Francisco International Airport to Ontario, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Flying from San Francisco International Airport to Ontario

Arm yourself with these facts on the fly.
Cheapest flight found£145, Toronto
Cheapest month to flyMay
Average flight time4 hrs, 58 mins
Average flights per week168
Most popular airlineUnited

Frequently asked questions

Yes - direct flights currently operate from San Francisco International Airport to Toronto Pearson International Airport in Ontario.
We looked at all of the upcoming return flights from San Francisco International Airport to Ontario we could find over the next 12 months. It looks like £145 is the best price. This is good, compared to the average Ontario ticket price of £339.
The cheapest month to fly from San Francisco International Airport to London Airport is currently May.
The cheapest month to fly from San Francisco International Airport to Windsor Airport is currently May.
The cheapest month to fly from San Francisco International Airport to Sudbury Airport is currently April.
And the cheapest month to fly from San Francisco International Airport to Ottawa International Airport is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Francisco International Airport to Ontario on Wednesday, 7 May 2025.
If you're flying from San Francisco International, the cheapest city in Ontario to fly into is Toronto. The cheapest airport serving Toronto at the moment is Toronto Pearson International.
The average flight time between San Francisco International Airport and Ontario is 4 hours and 58 minutes.