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ISP - YUL

Find cheap flights from Islip to Montreal from C$ 449

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Montreal departing on 12/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 25/5
Sat 1/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Montreal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Montreal, as well as popular online travel agencies
In the last 7 days, travellers have searched 44,979,812 times on KAYAK, and here is why:

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Flights from Islip to Montreal - Travel Insights & Trends

Get data-powered insights and trends into flights from Islip to Montreal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport is March, where tickets cost C$ 331 on average. On the other hand, the most expensive months are December and September, where the average cost of tickets is C$ 463 and C$ 460 respectively.

How far in advance should I book a flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 32 days before departure.

Good to know

Cheapest flight

C$ 449
Flight from Islip to Montreal

When to book flights from Islip to Montreal

Are your dates flexible? Find out the best times to travel from Islip to Montreal based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Islip to Montreal flights

  • What is the cheapest flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport?

    In the last 3 days, the lowest price for a flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport was C$ 328 for a one-way ticket.

  • Which aircraft models fly most regularly from Islip to Montreal?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Montreal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Montreal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Montreal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from Islip is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Montreal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to Islip with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Montreal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Islip to Montreal

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Islip to Montreal found on KAYAK in the last 72 hours.
12/7Fri
2 stops
15h 05mISP-YUL
C$ 449

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Last minute flights from Islip to Montreal

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Islip to Montreal that are departing in the next 10 days.
27/4Sat
multi-stop
9h 17mISP-YUL
29/4Mon
multi-stop
25h 58mYUL-ISP
C$ 810

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Islip - Montreal Flights

Departure:

Islip (ISP)United States

Destination:

Montreal (YUL)Canada

Return flight deals:

Montreal - Islip

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