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Cheap flights from Ontario to Islip, NY from C$ 434

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ISP
30 Apr — 7 May1
1 adult

Cheap flight deals from Ontario to Islip

Keep the following information in mind while searching for Ontario to Islip flight deals. Data was last updated 25 April 2025.

Popular in

December

Cheapest in

January

Average price

C$ 331
Highest demand for flights based on searches. 3% potential increase in price (C$ 15 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Ontario to Islip

Cheapest flights from Ontario to Islip
Explore the most affordable flight options available from Ontario to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2025.

Fri 25/42:00 p.m.YYZ - ISP
2 stops20h 00mMultiple Airlines
Sun 27/46:51 p.m.ISP - YYZ
1 stop28h 53mMultiple Airlines
Deal found 24/4C$ 976

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 25 April 2025.
Use the filters below to find and compare flights from Ontario to Islip that are best for you.

Fly from

Ontario

Fly to

Islip

Route

Depart

Return

Price

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Thu 29/5

6:30 a.m.-3:19 p.m.

2 stops32h 49m

C$ 434

MontrealIslip

YUL - ISP

YULISP

Montreal Pierre Elliott Trudeau Intl

Sat 31/5

6:00 a.m.-6:45 p.m.

2 stops12h 45m

C$ 548

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/4

Best time to book a flight from Ontario to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Islip

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip, New York ranges from 84.0 - 112.0 mm per month. March is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Islip, New York when rainfall is around 84.0 mm.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

Related info for your journey

Find useful and relevant information for your journey from Ontario to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Islip from Ontario?

    For a flight from Ontario to Islip, you will be flying into Long Island. Islip Long Island (ISP) is just 11.6 km from the centre of the city.

  • What are the most popular routes from Region of Ontario to Islip, New York?

  • Can I find deals for flights from Ontario to Islip that include hotel bookings?

    Yes. In addition to deals on Ontario to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Islip.

  • Can I find deals for business class flights from Ontario to Islip?

    Yes. Cheapflights offers flight deals from Ontario to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Ontario to Islip

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Islip from Ontario.

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Yes! Cheapflights helps users easily find flights from Ontario to Islip with no change fees.

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Not ready to book yet? You can track prices for flights from Ontario to Islip on Cheapflights with our Price Alert feature and get notified when better prices are available.

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