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Cheap flights from Islip to Quebec from C$ 742

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — YUL
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Islip to Quebec

Keep the following information in mind while searching for Islip to Quebec flight deals. Data was last updated 15 September 2025.

Round-trip from

C$ 742

Popular in

December

Cheapest in

April

Average price

C$ 449
11/2-17/2
  • 11/2-17/2
  • 3 total stops
  • 30h 45m total
  • Islip to Quebec
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Highest demand for flights based on searches. 2% potential increase in price (C$ 16 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease (C$ 6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Islip to Quebec

Cheapest flights from Islip to Quebec
Explore the most affordable flight options available from Islip to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Fri 17/104:58 p.m.ISP - YUL
1 stop21h 22mMultiple Airlines
Mon 20/106:40 p.m.YUL - ISP
2 stops15h 18mMultiple Airlines
Deal found 13/9C$ 862
Thu 25/911:53 a.m.ISP - YUL
2 stops10h 22mMultiple Airlines
Sun 28/96:55 a.m.YUL - ISP
2 stops8h 26mMultiple Airlines
Deal found 14/9C$ 1,535
Tue 14/107:30 a.m.ISP - YUL
2 stops14h 45mMultiple Airlines
Tue 21/106:55 a.m.YUL - ISP
2 stops9h 20mMultiple Airlines
Deal found 14/9C$ 1,806
Sun 5/107:30 a.m.ISP - YUL
2 stops9h 56mMultiple Airlines
Sun 12/108:20 a.m.YUL - ISP
2 stops11h 41mMultiple Airlines
Deal found 14/9C$ 3,505

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Quebec 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 15 September 2025.
Use the filters below to find and compare flights from Islip to Quebec that are best for you.

Fly from

Islip

Fly to

Quebec

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

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

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

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Fri 13/2

6:00 a.m.-3:10 p.m.

1 stop9h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

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

1 stop18h 05m

C$ 1,126

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Sun 5/10

7:30 a.m.-11:45 a.m.

1 stop4h 15m

C$ 1,702

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Best time to book a flight from Islip to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Quebec

What is the cheapest month to book a flight from Islip to Quebec?

Currently, October is the cheapest month in which you can book a flight from Islip to Quebec (average of C$ 241). Flying from Islip to Quebec in April is currently the most expensive (average of C$ 317). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Islip to Quebec. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to Quebec?

    Located just 11.6 km from the city centre, Islip Long Island (ISP) is the airport most travellers will use when flying to Quebec from Islip.

  • Can I find deals for flights from Islip to Quebec that include hotel bookings?

    Yes. In addition to deals on Islip to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Quebec?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Quebec.

  • Can I find deals for business class flights from Islip to Quebec?

    Yes. Cheapflights offers flight deals from Islip to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip to Quebec?

    Currently, October is the cheapest month in which you can book a flight from Islip to Quebec (average of C$ 241). Flying from Islip to Quebec in April is currently the most expensive (average of C$ 317). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Islip to Quebec

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Islip to Quebec?

When you search for this flight from Islip to Quebec, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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