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Niagara Falls

$165+ Cheap flights from Islip, NY (ISP) to Niagara Falls, ON, Canada

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — YYZ
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from Islip to Niagara Falls

Cheapest flights from Islip to Niagara Falls
Explore the most affordable flight options available from Islip to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/201:42 pm
ISP
-
YYZ
2 stops21h 53m
Multiple Airlines
Fri 3/272:20 pm
YYZ
-
ISP
1 stop19h 28m
Multiple Airlines
Deal found 2/3$459
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:26 pm
ISP
-
YYZ
2 stops51h 54m
Multiple Airlines
Sun 3/298:20 pm
YYZ
-
ISP
1 stop16h 13m
Multiple Airlines
Deal found 2/5$524
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/711:50 am
ISP
-
YYZ
2 stops9h 29m
Multiple Airlines
Sat 2/217:10 am
YYZ
-
ISP
1 stop12h 18m
Multiple Airlines
Deal found 2/5$776
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/92:31 pm
ISP
-
YYZ
2 stops23h 45m
Multiple Airlines
Wed 2/117:10 am
YYZ
-
ISP
1 stop11h 45m
Multiple Airlines
Deal found 2/5$1,023

Find flight deals from Islip to Niagara Falls

Keep the following information in mind while searching for Islip to Niagara Falls flight deals. Data was last updated February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$459
(Kiwi.com)

One-way from

$165
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$249
Provider with most accurate pricing for New York (NYC)-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Toronto (YTO) flights.
Search Deals
From Islip Long Island to Niagara Falls
Search Deals
One-way flight from Islip Long Island to Niagara Falls
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Niagara Falls 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 2,558,603 searches. Data last updated February 6, 2026.
Use the filters below to find and compare flights from Islip to Niagara Falls that are best for you.

Fly from

Islip

Fly to

Niagara Falls

Route

Depart

Return

Price

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Fri 3/20

1:42 pm-11:35 am

2 stops21h 53m

Toronto Pearson Intl

Fri 3/27

2:20 pm-9:48 am

1 stop19h 28m

$459

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Sun 3/22

7:26 pm-11:20 pm

2 stops51h 54m

Toronto Pearson Intl

Sun 3/29

8:20 pm-12:33 pm

1 stop16h 13m

$524

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Mon 4/20

4:07 pm-2:16 pm

1 stop22h 09m

$168

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Sun 4/19

4:07 pm-2:16 pm

1 stop22h 09m

$183

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Fri 4/17

4:07 pm-12:14 am

1 stop8h 07m

$183

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Wed 4/22

11:50 am-2:16 pm

2 stops26h 26m

$228

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Sat 4/18

11:50 am-11:28 am

2 stops23h 38m

$238

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Thu 4/16

7:26 pm-2:05 pm

3 stops18h 39m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Best time to book a flight from Islip to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls 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 Niagara Falls

What is the cheapest month to book a flight from Islip, New York to Niagara Falls?

Currently, May is the cheapest month in which you can book a flight from Islip, New York to Niagara Falls (average of $84). Flying from Islip, New York to Niagara Falls in December is currently the most expensive (average of $128). 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 Niagara Falls. 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 Niagara Falls?

    If you book a flight to Niagara Falls from Islip, you will be flying from Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip. There are 0 flights from Long Island to Niagara Falls per day from 0 different airlines.

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

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

  • How can I find direct flights from Islip to Niagara Falls?

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

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

    Yes. Cheapflights offers flight deals from Islip to Niagara Falls 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, New York to Niagara Falls?

    Currently, May is the cheapest month in which you can book a flight from Islip, New York to Niagara Falls (average of $84). Flying from Islip, New York to Niagara Falls in December is currently the most expensive (average of $128). 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 Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
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