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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to New York from $529

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to New York departing on 12/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:35 pm - 12:42 pmYUL-ISP
20h 07m1 stop
Multiple Airlines Logo
2:19 pm - 12:30 amISP-YUL
34h 11m2 stops
$529Multiple Airlines
Find Deal
Thu, Dec 18 - Thu, Dec 25
Multiple Airlines Logo
4:35 pm - 12:42 pmYUL-ISP
20h 07m1 stop
Multiple Airlines Logo
12:20 pm - 12:30 amISP-YUL
12h 10m1 stop
$663Multiple Airlines
Find Deal
Thu, Dec 18 - Thu, Dec 25

momondo Fare Finder

 
Customize your flight search to find flights from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealIslip

YUL - ISP

YULISP

Montreal Pierre Elliott Trudeau Intl

Thu 12/18

4:35 pm-12:42 pm

1 stop20h 07m

Islip Long Island

Thu 12/25

2:19 pm-12:30 am

2 stops34h 11m

$529

MontrealIslip

YUL - ISP

YULISP

Montreal Pierre Elliott Trudeau Intl

Thu 12/18

4:35 pm-12:42 pm

1 stop20h 07m

Islip Long Island

Thu 12/25

12:20 pm-12:30 am

1 stop12h 10m

$663

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Islip, New York?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Islip, New York from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 5 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York (YUL to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York

Direct flights

None
There are no direct flights from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York. There are no popular flight routes from Montreal Pierre Elliott Trudeau Intl Airport to Islip, New York.
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  • How far is Montreal Pierre Elliott Trudeau Intl to Islip Long Island by plane?

    Islip Long Island is 327.8 mi away from Montreal Pierre Elliott Trudeau Intl. In terms of flight time, this usually takes a little over 20h 07m.

  • When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Islip Long Island Airport?

    Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Islip Long Island Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Islip Long Island Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal Pierre Elliott Trudeau Intl Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Islip?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Islip for you.

Can I find flights from Montreal to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from Montreal which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montreal to Islip?

momondo helps you find the best flight between Montreal and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Montreal to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Montreal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Thu 12/4
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