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Cheap flights from Islip to Montreal from C$ 742

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 to Montreal departing on 11/2. 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 to Montreal

Cheap round-trip flights

Multiple Airlines Logo
11:50 a.m. - 12:30 a.m.ISP-YUL
12h 40m2 stops
Multiple Airlines Logo
4:35 p.m. - 10:40 a.m.YUL-ISP
18h 05m1 stop
C$ 742Multiple Airlines
Find Deal
Wed, 11 Feb - Tue, 17 Feb
Multiple Airlines Logo
11:50 a.m. - 12:30 a.m.ISP-YUL
12h 40m2 stops
Multiple Airlines Logo
4:35 p.m. - 10:40 a.m.YUL-ISP
18h 05m1 stop
C$ 782Multiple Airlines
Find Deal
Wed, 11 Feb - Sun, 15 Feb
Multiple Airlines Logo
11:50 a.m. - 12:30 a.m.ISP-YUL
12h 40m2 stops
Multiple Airlines Logo
6:45 a.m. - 12:31 a.m.YUL-ISP
17h 46m1 stop
C$ 811Multiple Airlines
Find Deal
Wed, 11 Feb - Mon, 16 Feb
Multiple Airlines Logo
11:45 a.m. - 12:30 a.m.ISP-YUL
12h 45m2 stops
Multiple Airlines Logo
4:35 p.m. - 10:40 a.m.YUL-ISP
18h 05m1 stop
C$ 850Multiple Airlines
Find Deal
Thu, 12 Feb - Tue, 17 Feb
Multiple Airlines Logo
4:58 p.m. - 2:20 p.m.ISP-YUL
21h 22m1 stop
Multiple Airlines Logo
6:40 p.m. - 9:58 a.m.YUL-ISP
15h 18m2 stops
C$ 862Multiple Airlines
Find Deal
Fri, 17 Oct - Mon, 20 Oct
Multiple Airlines Logo
7:41 p.m. - 12:30 a.m.ISP-YUL
28h 49m1 stop
Multiple Airlines Logo
4:35 p.m. - 10:40 a.m.YUL-ISP
18h 05m1 stop
C$ 894Multiple Airlines
Find Deal
Wed, 11 Feb - Tue, 17 Feb
Multiple Airlines Logo
11:45 a.m. - 12:30 a.m.ISP-YUL
12h 45m2 stops
Multiple Airlines Logo
8:00 a.m. - 12:31 a.m.YUL-ISP
16h 31m1 stop
C$ 928Multiple Airlines
Find Deal
Thu, 12 Feb - Mon, 16 Feb
Multiple Airlines Logo
7:41 p.m. - 12:30 a.m.ISP-YUL
28h 49m1 stop
Multiple Airlines Logo
6:45 a.m. - 12:31 a.m.YUL-ISP
17h 46m1 stop
C$ 961Multiple Airlines
Find Deal
Wed, 11 Feb - Mon, 16 Feb
Multiple Airlines Logo
10:42 a.m. - 12:30 a.m.ISP-YUL
13h 48m1 stop
Multiple Airlines Logo
4:35 p.m. - 10:40 a.m.YUL-ISP
18h 05m1 stop
C$ 1,043Multiple Airlines
Find Deal
Thu, 12 Feb - Tue, 17 Feb
Multiple Airlines Logo
10:42 a.m. - 12:30 a.m.ISP-YUL
13h 48m1 stop
Multiple Airlines Logo
4:35 p.m. - 10:40 a.m.YUL-ISP
18h 05m1 stop
C$ 1,083Multiple Airlines
Find Deal
Thu, 12 Feb - Sun, 15 Feb

momondo Fare Finder

 
Customize your flight search to find flights from Islip 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 16 September 2025.
Use the filters below to find and compare flights from Islip 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

Wed 11/2

11:50 a.m.-12:30 a.m.

2 stops12h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

4:35 p.m.-10:40 a.m.

1 stop18h 05m

C$ 742

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Wed 11/2

11:50 a.m.-12:30 a.m.

2 stops12h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

4:35 p.m.-10:40 a.m.

1 stop18h 05m

C$ 782

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Wed 11/2

11:50 a.m.-12:30 a.m.

2 stops12h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

6:45 a.m.-12:31 a.m.

1 stop17h 46m

C$ 811

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 12/2

11:45 a.m.-12:30 a.m.

2 stops12h 45m

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

4:35 p.m.-10:40 a.m.

1 stop18h 05m

C$ 850

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Fri 17/10

4:58 p.m.-2:20 p.m.

1 stop21h 22m

Montreal Pierre Elliott Trudeau Intl

Mon 20/10

6:40 p.m.-9:58 a.m.

2 stops15h 18m

C$ 862

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Wed 11/2

7:41 p.m.-12:30 a.m.

1 stop28h 49m

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

4:35 p.m.-10:40 a.m.

1 stop18h 05m

C$ 894

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 12/2

11:45 a.m.-12:30 a.m.

2 stops12h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

8:00 a.m.-12:31 a.m.

1 stop16h 31m

C$ 928

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Wed 11/2

7:41 p.m.-12:30 a.m.

1 stop28h 49m

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

6:45 a.m.-12:31 a.m.

1 stop17h 46m

C$ 961

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 12/2

10:42 a.m.-12:30 a.m.

1 stop13h 48m

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

4:35 p.m.-10:40 a.m.

1 stop18h 05m

C$ 1,043

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Thu 12/2

10:42 a.m.-12:30 a.m.

1 stop13h 48m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

4:35 p.m.-10:40 a.m.

1 stop18h 05m

C$ 1,083

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Montreal from

How to get the cheapest flight ticket from Islip 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$ 373. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Islip because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 496.

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 to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as C$ 377. 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 at noon because they tend to be around C$ 577. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Islip 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 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 to Montreal Pierre Elliott Trudeau Intl Airport

Direct flights

None
There are no direct flights from Islip to Montreal Pierre Elliott Trudeau Intl Airport. There are no popular flight routes from Islip 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 15m.

  • 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
Trois-Rivières
Sherbrooke
Brossard
Cornwall
Drummondville
Magog
Longueuil
North Hatley
Dorval
Bromont
Saint-Sauveur
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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