Cheap Flights from Islip to Toronto from US$92

Frequently Asked Questions

• What are the cheapest flights from Islip to Toronto (ISP-YTO)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$92 on Cheapest nonstop routes (e.g. ISP to YYZ on Mon, Dec 15), while Frontier Airlines offers Cheapest nonstop round-trips from US$340 departing on Sun, Dec 14 and returning on Sun, Dec 21.

• When is the best time to book flights from Islip to Toronto?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Islip to Toronto is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Islip to Toronto?

  To find best deals on flights from Islip to Toronto, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Dec 15, with one-way flights priced at just US$92.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Toronto travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Islip (ISP) to Toronto (YTO) the cheapest?

  The cheapest months to fly from Islip to Toronto is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Islip to Toronto on?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Islip to Toronto on December 14, 2025 with Frontier Airlines, with prices starting at US$339.

• Is there any time difference between Islip and Toronto?

  The time difference between Toronto and Islip is 0h.

• How do I change or cancel my ticket from Islip to Toronto?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.