Round-trip from | £425 |
|---|---|
Popular in | February |
Cheapest in | July |
Average price | £133 |
The best time to book flights from Ontario to San Francisco is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, February is the cheapest month in which you can book a flight from Ontario to San Francisco (average of £538). Flying from Ontario to San Francisco in July is currently the most expensive (average of £741). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Ontario to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
The most flights from ONT to SFO are scheduled on a Wednesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.
If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).
When you search for this flight from Ontario to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Cheapflights simply makes it quick and affordable to book flights from Ontario to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to San Francisco, users can toggle the no change fees filter when performing a flight search.
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