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Flights from Islip to Toronto

Find flight deals from Islip to Toronto for the next 3 months. Book one way flights from £69 or round trip flights from £256.

      • ISP 12:07 PM
        9h 12m
        1 stop
        YYZ 9:19 PM
        Islip - Toronto | Sun, Dec 14 | Frontier Airlines
        YYZ 2:20 PM
        9h 39m
        1 stop
        ISP 11:59 PM
        Toronto - Islip | Sun, Dec 21 | Porter Airlines
        £256 £1,159
        78% OFF
        78% OFF
        £1,159 £256
      • ISP 6:00 AM
        15h 19m
        1 stop
        YYZ 9:19 PM
        Islip - Toronto | Fri, Dec 12 | Frontier Airlines
        YYZ 2:20 PM
        9h 39m
        1 stop
        ISP 11:59 PM
        Toronto - Islip | Fri, Dec 19 | Porter Airlines
        £330 £1,159
        72% OFF
        72% OFF
        £1,159 £330
      • ISP 1:27 PM
        24h 53m
        1 stop
        YYZ 2:20 PM
        Islip - Toronto | Fri, Dec 19 | Frontier Airlines
        YYZ 7:10 AM
        12h 30m
        1 stop
        ISP 7:40 PM
        Toronto - Islip | Fri, Dec 26 | Flair Airlines
        £339 £1,159
        71% OFF
        71% OFF
        £1,159 £339
      • ISP 10:06 AM
        14h 5m
        1 stop
        YYZ 12:11 AM
        Islip - Toronto | Mon, Dec 15 | Frontier Airlines
        YYZ 5:15 PM
        15h 56m
        1 stop
        ISP 9:11 AM
        Toronto - Islip | Thu, Dec 18 | WestJet
        £599
        48% OFF
        £1,159 £599
      • ISP 10:45 AM
        13h 26m
        1 stop
        YYZ 12:11 AM
        Islip - Toronto | Mon, Dec 15 | Jetblue Airways
        YYZ 5:15 PM
        16h 46m
        1 stop
        ISP 10:01 AM
        Toronto - Islip | Thu, Dec 18 | WestJet
        £606
        48% OFF
        £1,159 £606
      • ISP 2:35 PM
        8h 44m
        1 stop
        YYZ 11:19 PM
        Islip - Toronto | Thu, Dec 18 | Jetblue Airways
        YTZ 3:50 PM
        8h
        1 stop
        ISP 11:50 PM
        Toronto - Islip | Mon, Dec 22 | Porter Airlines
        £618
        47% OFF
        £1,159 £618
      • ISP 4:40 PM
        22h 20m
        1 stop
        YHM 3:00 PM
        Islip - Toronto | Sat, Dec 20 | Frontier Airlines
        YHM 7:25 AM
        17h 30m
        1 stop
        ISP 12:55 AM
        Toronto - Islip | Sat, Dec 27 | Porter Airlines
        £941
        19% OFF
        £1,159 £941
      • ISP 7:50 PM
        19h 10m
        1 stop
        YHM 3:00 PM
        Islip - Toronto | Sat, Dec 20 | Jetblue Airways
        YHM 7:25 AM
        11h 30m
        1 stop
        ISP 6:55 PM
        Toronto - Islip | Sat, Dec 27 | Porter Airlines
        £1,031
        11% OFF
        £1,159 £1,031
      • ISP 1:00 PM
        17h 25m
        1 stop
        YTO Invalid Date
        Islip - Toronto | Fri, Dec 12 | Normal Airline
        YTO 3:00 PM
        6h
        Nonstop
        ISP 4:00 PM
        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 Info | Islip to Toronto

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

Cheapest one-way flight price£69
Cheapest round-trip ticket price£256
Off-season for travelOctober
Peak season for travelJuly
Flight distance606.73 km

When is the 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 £69.

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.

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 £69 on Cheapest nonstop routes (e.g. ISP to YYZ on Mon, Dec 15), while Frontier Airlines offers Cheapest nonstop round-trips from £256 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 £69.
    · 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 £255.
  • The time difference between Toronto and Islip is 0h.
  • 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.

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