$181 Find Cheap Flights from San Francisco to Ontario - Compare and Save

The cheapest ticket to Ontario from San Francisco found in the last 5 days was to Toronto, at $218 round-trip. The most popular route is from San Francisco (SFO) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 5 days was $218.

The cheapest time of day to fly to Ontario is generally in the afternoon, when round-trip flights cost $530 on average. Morning departures are around 28% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $734.

No, with an average price for the route of $577, prices are generally cheapest when you fly direct.

The cheapest month for flights from San Francisco to Ontario is January, when tickets cost $134 (return) on average. On the other hand, the most expensive months are October and February, when the average cost of round-trip tickets is $1,082 and $1,070 respectively.

Your flight ticket price will generally be cheaper if you fly to Ontario on a Wednesday and more expensive on a Sunday. On your return trip to San Francisco, you should consider flying back on a Thursday, and avoid Mondays for better deals.

To get a below average price on the flight from San Francisco to Ontario, you should book around 3 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

There are 7 airlines that fly nonstop from San Francisco to Ontario. They are: American Airlines, Qatar Airways, Air Canada, Porter Airlines, WestJet, United Airlines and Air Transat. The cheapest price of all airlines flying this route was found with WestJet at $134 for a round-trip flight to Toronto Pearson Intl Airport (YYZ). On average, WestJet offers the best prices for nonstop flights between San Francisco and Ontario.

San Francisco and Ontario are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (45 flights per week), Air Canada (43 flights per week), and Air New Zealand (29 flights per week).

The duration of a flight to Ontario depends on your arrival airport. The shortest routes to Ontario from San Francisco are to Windsor, which takes 7h 37m, Toronto, which takes 7h 46m, and Sudbury, which takes 7h 47m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from San Francisco to Ontario departs at 8:10 am, landing in Toronto at 4:10 pm.

If you prefer to fly at night, the latest flight from San Francisco to Ontario jets off at 10:51 pm and lands in Toronto at 7:00 am.