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Cheap Flights from Islip to Toronto

Explore the cheapest flights from Islip to Toronto in the next three months. Based on Trip.com's data from the latest 7 days, one-way fares start at € 79, and round-trip tickets start at € 293.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flying from Islip to Toronto

The distance between Islip and Toronto is approximately 606.73km. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price€ 79
Cheapest return ticket price€ 293
Off-season for travelOctober
Peak season for travelJuly
Flight distance606.73km

Cheapest time to fly from Islip to Toronto

The cheapest time for Islip to Toronto flights: Dec 14 to Dec 21 — one way flight prices from € 79.

Cheapest flights
From price
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  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
  • 18
  • 815
  • 1522
  • Mar

    221
Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Islip (ISP) to Toronto (YTO)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as € 79 on Cheapest nonstop routes (e.g. ISP to YYZ on Mon, Dec 15), while Frontier Airlines offers Cheapest nonstop round-trips from € 293 departing on Sun, Dec 14 and returning on Sun, Dec 21.
  • 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.
  • 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 € 79.
    · 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.
  • The cheapest months to fly from Islip to Toronto is October, when demand for travel is lower.
  • 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 € 292.
  • The time difference between Toronto and Islip is 0h.
  • Tickets can only be changed or cancelled 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.