From most locations, the cheapest flights to San Diego can be found during the month of October; however great deals can be found at other times.
Most flyers found that booking flight tickets 56 days in advance of their planned departure date is, on average, the best time to get cheap flights to San Diego.
On average, the cheapest flights to San Diego are found when departing on a Wednesday. Try to avoid departing on a Monday, as this is usually the most expensive day.
Our data shows that the cheapest San Diego flights are usually those with midday departure times. morning flights are often costlier.
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