When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 16 days in advance, which can save you up to 75% on flights from Islip, New York to Ontario compared to booking the week you need them. Waiting 16 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 $412. For sooner than that we have options available in the next 3 days from $576.
September is one of the best times of the year to fly to Ontario from Islip, New York. Prices for September average $366 per person but you can even find prices for as low as $132. The most expensive prices can be found in the month of December. Opting for a September flight can save you 32% on your journey compared to booking in December
When flying from Islip, New York to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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