Thursday flights are found to be more expensive to fly from Islip to San Diego. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 33 days in advance, which can save you up to 19% on flights from Islip to San Diego compared to booking the week you need them. Waiting 33 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $86. For sooner than that we have options available in the next 3 days from $107.
Our data shows that May tends to be the cheapest month to fly to San Diego from Islip. Users have commonly found prices around $98 for the month, but tickets can be as low as $58. Due to multiple factors, prepare for potentially higher prices in March.