How to find the cheapest flight from
San Francisco (SFO) to Ontario
How far in advance should I book a flight from San Francisco to Ontario?
To save up to 36% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Francisco to Ontario from $306 1-2 weeks out and tickets from $373 for flights departing within the next 72 hours.
What is the cheapest month to fly from San Francisco to Ontario?
September is one of the best times of the year to fly to Ontario from San Francisco. Prices for September average $286 per person but you can even find prices for as low as $137. The most expensive prices can be found in the month of November. Opting for a September flight can save you 18% on your journey compared to booking in September
One-way flights to Ontario from San Francisco
The cheapest one-way flights from San Francisco to Ontario
7:37 pm - 6:09 am
1:35 am - 4:59 pm
3:20 am - 6:24 pm
Related info for your journey
Useful info, stats and facts about San Francisco to Ontario flights.
Arrival points for flights from San Francisco to Ontario
Destination information for Ontario
Things to know before you go. Useful info for your trip from San Francisco to Ontario
Fort Frances (YAG)
Ste. Marie Marie (YAM)