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Cheap flights from Islip, New York to Montreal from C$ 664

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Montreal departing on 26/1. 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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Find the cheapest flights from Islip, New York to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 p.m. - 12:43 a.m.ISP-YUL
29h 23m2 stops
Multiple Airlines Logo
3:55 p.m. - 11:59 a.m.YUL-ISP
20h 04m1 stop
C$ 664Multiple Airlines
Find Deal
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
12:20 p.m. - 12:30 a.m.ISP-YUL
12h 10m1 stop
Multiple Airlines Logo
5:10 p.m. - 8:07 p.m.YUL-ISP
26h 57m2 stops
C$ 726Multiple Airlines
Find Deal
Thu, 18 Dec - Thu, 25 Dec
Multiple Airlines Logo
12:20 p.m. - 12:30 a.m.ISP-YUL
12h 10m1 stop
Multiple Airlines Logo
4:35 p.m. - 7:40 p.m.YUL-ISP
27h 05m1 stop
C$ 745Multiple Airlines
Find Deal
Thu, 18 Dec - Thu, 25 Dec
Multiple Airlines Logo
12:20 p.m. - 12:30 a.m.ISP-YUL
12h 10m1 stop
Multiple Airlines Logo
4:35 p.m. - 4:37 p.m.YUL-ISP
24h 02m1 stop
C$ 801Multiple Airlines
Find Deal
Thu, 25 Dec - Tue, 30 Dec
Multiple Airlines Logo
10:38 a.m. - 12:45 a.m.ISP-YUL
14h 07m2 stops
Multiple Airlines Logo
4:35 p.m. - 4:37 p.m.YUL-ISP
24h 02m1 stop
C$ 828Multiple Airlines
Find Deal
Thu, 25 Dec - Tue, 30 Dec
Multiple Airlines Logo
12:40 p.m. - 5:05 p.m.ISP-YUL
4h 25m1 stop
Multiple Airlines Logo
1:25 p.m. - 7:45 p.m.YUL-ISP
6h 20m1 stop
C$ 3,579Multiple Airlines
Find Deal
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
12:40 p.m. - 9:42 p.m.ISP-YUL
9h 02m2 stops
Multiple Airlines Logo
6:25 p.m. - 4:15 p.m.YUL-ISP
21h 50m2 stops
C$ 3,600Multiple Airlines
Find Deal
Thu, 25 Dec - Tue, 30 Dec
Multiple Airlines Logo
12:40 p.m. - 9:42 p.m.ISP-YUL
9h 02m2 stops
Multiple Airlines Logo
6:00 a.m. - 7:45 p.m.YUL-ISP
13h 45m3 stops
C$ 3,691Multiple Airlines
Find Deal
Thu, 25 Dec - Tue, 30 Dec

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport 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 96,600 searches. Data last updated 3 November 2025.
Use the filters below to find and compare flights from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Mon 26/1

7:20 p.m.-12:43 a.m.

2 stops29h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

3:55 p.m.-11:59 a.m.

1 stop20h 04m

C$ 664

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 18/12

12:20 p.m.-12:30 a.m.

1 stop12h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 25/12

5:10 p.m.-8:07 p.m.

2 stops26h 57m

C$ 726

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 18/12

12:20 p.m.-12:30 a.m.

1 stop12h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 25/12

4:35 p.m.-7:40 p.m.

1 stop27h 05m

C$ 745

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 25/12

12:20 p.m.-12:30 a.m.

1 stop12h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

4:35 p.m.-4:37 p.m.

1 stop24h 02m

C$ 801

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 25/12

10:38 a.m.-12:45 a.m.

2 stops14h 07m

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

4:35 p.m.-4:37 p.m.

1 stop24h 02m

C$ 828

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Mon 26/1

12:40 p.m.-5:05 p.m.

1 stop4h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

1:25 p.m.-7:45 p.m.

1 stop6h 20m

C$ 3,579

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 25/12

12:40 p.m.-9:42 p.m.

2 stops9h 02m

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

6:25 p.m.-4:15 p.m.

2 stops21h 50m

C$ 3,600

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 25/12

12:40 p.m.-9:42 p.m.

2 stops9h 02m

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

6:00 a.m.-7:45 p.m.

3 stops13h 45m

C$ 3,691

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Montreal from

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

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 is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

The cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport is on a Wednesday when prices can be found for as low as C$ 382. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Islip, New York because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 560.

What is the cheapest time of day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

In the evening is the cheapest time of day to fly from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as C$ 379. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around C$ 549. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

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

Direct flights

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

    Montreal Pierre Elliott Trudeau Intl is 527.5 km away from Islip Long Island. In terms of flight time, this usually takes a little over 4h 25m.

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

    Prices for flights from Islip Long Island Airport to Montreal Pierre Elliott Trudeau Intl Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Montreal Pierre Elliott Trudeau Intl Airport.

  • What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

    The travel and health documents required for your trip to Montreal Pierre Elliott Trudeau Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montreal Pierre Elliott Trudeau Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Laval
Montebello
Sherbrooke
Trois-Rivières
Brossard
Dorval
Drummondville
Cornwall
North Hatley
Longueuil
Magog
Saint-Sauveur
Bromont
Saint-Jean-sur-Richelieu
Boucherville
Sutton
Waterloo

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Islip to Montreal. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Montreal from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Islip and Montreal 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 Islip to Montreal right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Montreal, momondo offers a useful price alert feature which will track prices for flights to Montreal from Islip and alert you when they change.

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