To save on the cost of your flight from Long Island to San Diego, book at least 35 days before your planned departure. Booking around this time can save you about 42% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $381 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $460.
Our data shows that August tends to be the cheapest month to fly to San Diego from Long Island. Users have commonly found prices around $326 for the month, but tickets can be as low as $138. Due to multiple factors, prepare for potentially higher prices in December.
When flying from Long Island to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.