Booking with United Airlines 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a United Airlines flight from Toronto to San Francisco in June, with an average price of C$ 238. Conversely, traveling with United Airlines from Toronto to San Francisco in September will be the most expensive, with an average cost of C$ 475. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
The most United Airlines flights from YTO to SFO are scheduled on a Tuesday (4 on average). You will have fewer United Airlines flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm 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).
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