When did momondo last update prices for flights from Islip Long Island Airport to Ontario?

Prices for flights from Islip Long Island Airport to Ontario were last updated today.

How old do you have to be to fly from Islip Long Island Airport to Ontario?

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 Islip Long Island Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The necessary travel and health documents for your Ontario 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.

$288 Cheap Flights from Islip to Ontario in 2025/26

1 adult

0 bags

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Find the cheapest flights from Islip, New York to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:20 pm - 8:11 pm

ISP

YYZ

24h 51m2 stops

7:10 am - 8:47 pm

YYZ

ISP

13h 37m1 stop

$288Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

7:35 pm - 2:53 pm

ISP

YYZ

19h 18m1 stop

7:10 am - 8:40 am

YYZ

ISP

25h 30m1 stop

$300Multiple Airlines

Sat, Jan 31 - Sat, Feb 7

7:35 pm - 2:53 pm

ISP

YYZ

19h 18m1 stop

2:20 pm - 11:15 am

YYZ

ISP

20h 55m2 stops

$336Multiple Airlines

Sat, Jan 31 - Sat, Feb 7

9:43 pm - 2:20 pm

ISP

YYZ

16h 37m1 stop

7:10 am - 8:47 pm

YYZ

ISP

13h 37m1 stop

$369Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

8:32 am - 10:15 pm

ISP

YYZ

13h 43m1 stop

1:30 pm - 10:55 am

YYZ

ISP

21h 25m1 stop

$392Multiple Airlines

Wed, Mar 25 - Sun, Apr 26

7:35 pm - 11:49 pm

ISP

YYZ

28h 14m1 stop

8:00 pm - 1:31 pm

YYZ

ISP

17h 31m2 stops

$489Multiple Airlines

Wed, Mar 25 - Sun, Apr 26

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Fri 1/30

7:20 pm-8:11 pm

2 stops24h 51m

Toronto Pearson Intl

Fri 2/6

7:10 am-8:47 pm

1 stop13h 37m

$288

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Sat 1/31

7:35 pm-2:53 pm

1 stop19h 18m

Toronto Pearson Intl

Sat 2/7

7:10 am-8:40 am

1 stop25h 30m

$300

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Sat 1/31

7:35 pm-2:53 pm

1 stop19h 18m

Toronto Pearson Intl

Sat 2/7

2:20 pm-11:15 am

2 stops20h 55m

$336

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Fri 1/30

9:43 pm-2:20 pm

1 stop16h 37m

Toronto Pearson Intl

Fri 2/6

7:10 am-8:47 pm

1 stop13h 37m

$369

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Wed 3/25

8:32 am-10:15 pm

1 stop13h 43m

Toronto Pearson Intl

Sun 4/26

1:30 pm-10:55 am

1 stop21h 25m

$392

IslipToronto

ISP - YYZ

ISPYYZ

Islip Long Island

Wed 3/25

7:35 pm-11:49 pm

1 stop28h 14m

Toronto Pearson Intl

Sun 4/26

8:00 pm-1:31 pm

2 stops17h 31m

$489

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Tue 12/23

12:20 pm-12:30 am

1 stop12h 10m

$344

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Tue 12/23

11:40 am-3:10 pm

3 stops27h 30m

$349

IslipMontreal

ISP - YUL

ISPYUL

Islip Long Island

Tue 12/23

6:25 am-3:10 pm

2 stops32h 45m

$370

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to Region of Ontario

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 Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from Islip, New York according to our data. Air Canada is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 8 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

Cheap Islip, New York to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Region of Ontario

Fastest flight time	13h 43m
Direct flights	None

The fastest flight from Islip, New York to Region of Ontario takes 13h 43m

There are no direct flights from Islip, New York to Region of Ontario. There are no popular flight routes from Islip, New York to Region of Ontario.

Search flight deals

When did momondo last update prices for flights from Islip Long Island Airport to Ontario?
Prices for flights from Islip Long Island Airport to Ontario were last updated today.
How old do you have to be to fly from Islip Long Island Airport to Ontario?
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 Islip Long Island Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The necessary travel and health documents for your Ontario 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.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Islip.

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

Yes. momondo allows you to filter the results for Islip to Ontario flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Islip to Ontario.

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

Price alerts on flights to Ontario from Islip 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.