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.
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 |
Find flight deals from Ontario to Islip
Cheapest flights from Ontario to IslipExplore 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.
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.
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
Fly to
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
MontrealIslip
YUL - ISP
YULISP
Montreal Pierre Elliott Trudeau Intl
Sat 31/5
6:00 a.m.-6:45 p.m.
2 stops12h 45m
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.
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.
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Alternative routes for Ontario to Islip
See prices for flight routes from nearby airports that may be better suited for you.
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