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Flights from Islip to Toronto

Find the cheapest flight options from Islip to Toronto over the next three months. Book one-way tickets from €79 and round-trip tickets from €293.

      • ISP 12:07
        9h 12m
        1 stop
        YYZ 21:19
        Islip - Toronto | Sun, Dec 14 | Frontier Airlines
        YYZ 14:20
        9h 39m
        1 stop
        ISP 23:59
        Toronto - Islip | Sun, Dec 21 | Porter Airlines
        €293 €1,326
        78% OFF
        78% OFF
        €1,326 €293
      • ISP 06:00
        15h 19m
        1 stop
        YYZ 21:19
        Islip - Toronto | Fri, Dec 12 | Frontier Airlines
        YYZ 14:20
        9h 39m
        1 stop
        ISP 23:59
        Toronto - Islip | Fri, Dec 19 | Porter Airlines
        €378 €1,326
        72% OFF
        72% OFF
        €1,326 €378
      • ISP 13:27
        24h 53m
        1 stop
        YYZ 14:20
        Islip - Toronto | Fri, Dec 19 | Frontier Airlines
        YYZ 07:10
        12h 30m
        1 stop
        ISP 19:40
        Toronto - Islip | Fri, Dec 26 | Flair Airlines
        €387 €1,326
        71% OFF
        71% OFF
        €1,326 €387
      • ISP 10:06
        14h 5m
        1 stop
        YYZ 00:11
        Islip - Toronto | Mon, Dec 15 | Frontier Airlines
        YYZ 17:15
        15h 56m
        1 stop
        ISP 09:11
        Toronto - Islip | Thu, Dec 18 | WestJet
        €686
        48% OFF
        €1,326 €686
      • ISP 10:45
        13h 26m
        1 stop
        YYZ 00:11
        Islip - Toronto | Mon, Dec 15 | Jetblue Airways
        YYZ 17:15
        16h 46m
        1 stop
        ISP 10:01
        Toronto - Islip | Thu, Dec 18 | WestJet
        €693
        48% OFF
        €1,326 €693
      • ISP 14:35
        8h 44m
        1 stop
        YYZ 23:19
        Islip - Toronto | Thu, Dec 18 | Jetblue Airways
        YTZ 15:50
        8h
        1 stop
        ISP 23:50
        Toronto - Islip | Mon, Dec 22 | Porter Airlines
        €707
        47% OFF
        €1,326 €707
      • ISP 16:40
        22h 20m
        1 stop
        YHM 15:00
        Islip - Toronto | Sat, Dec 20 | Frontier Airlines
        YHM 07:25
        17h 30m
        1 stop
        ISP 00:55
        Toronto - Islip | Sat, Dec 27 | Porter Airlines
        €1,076
        19% OFF
        €1,326 €1,076
      • ISP 19:50
        19h 10m
        1 stop
        YHM 15:00
        Islip - Toronto | Sat, Dec 20 | Jetblue Airways
        YHM 07:25
        11h 30m
        1 stop
        ISP 18:55
        Toronto - Islip | Sat, Dec 27 | Porter Airlines
        €1,180
        11% OFF
        €1,326 €1,180
      • ISP 13:00
        17h 25m
        1 stop
        YTO Invalid Date
        Islip - Toronto | Fri, Dec 12 | Normal Airline
        YTO 15:00
        6h
        Direct
        ISP 16:00
        Toronto - Islip | Sun, Dec 14 | Normal Airline
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Displayed flight fares from Islip to Toronto are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Islip to Toronto

The distance between Islip and Toronto is 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 travel monthOctober
Peak season for travelJuly
Flight distance606.73km

Find the best 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
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Islip to Toronto, calculated over the upcoming 10 weeks.

Flight FAQs

  • 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.

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