Booking with United Airlines 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
For Economy Class flights, the cheapest month to fly this route is May. The most expensive months are March and December.
The most United Airlines flights from YTO to SAN are scheduled on a Monday (1 on average). You will have fewer United Airlines flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.
If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).
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