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Cheap flights from Ontario to New York from $390

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to New York departing on 7/4. 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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0 bags

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Find the cheapest flights from Ontario to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 8:57 pm
YOW
-
ISP
13h 57m
1 stop
Multiple Airlines Logo
9:52 pm - 5:35 pm
ISP
-
YOW
43h 43m
2 stops
$460Multiple Airlines
Fri, Jun 19 - Sun, Jun 21
Multiple Airlines Logo
8:10 am - 7:05 pm
YYZ
-
ISP
10h 55m
1 stop
Multiple Airlines Logo
8:31 pm - 8:40 pm
ISP
-
YYZ
24h 09m
1 stop
$533Multiple Airlines
Fri, Jul 3 - Fri, Jul 10
Multiple Airlines Logo
7:45 am - 8:57 pm
YYZ
-
ISP
13h 12m
1 stop
Multiple Airlines Logo
9:52 pm - 11:35 pm
ISP
-
YYZ
25h 43m
1 stop
$586Multiple Airlines
Thu, Jun 18 - Thu, Jun 25
Multiple Airlines Logo
8:10 am - 7:05 pm
YYZ
-
ISP
10h 55m
1 stop
Multiple Airlines Logo
8:43 pm - 8:40 pm
ISP
-
YYZ
23h 57m
2 stops
$587Multiple Airlines
Fri, Jul 3 - Fri, Jul 10
Multiple Airlines Logo
7:45 am - 8:57 pm
YYZ
-
ISP
13h 12m
1 stop
Multiple Airlines Logo
9:52 pm - 7:44 pm
ISP
-
YYZ
21h 52m
2 stops
$595Multiple Airlines
Thu, Jun 18 - Thu, Jun 25
Multiple Airlines Logo
7:45 am - 10:15 am
YYZ
-
ISP
26h 30m
1 stop
Multiple Airlines Logo
11:00 am - 8:05 pm
ISP
-
YYZ
9h 05m
1 stop
$615Multiple Airlines
Fri, Jun 5 - Mon, Jun 8
Multiple Airlines Logo
8:10 am - 8:03 pm
YYZ
-
ISP
11h 53m
2 stops
Multiple Airlines Logo
11:00 am - 8:05 pm
ISP
-
YYZ
9h 05m
1 stop
$713Multiple Airlines
Fri, Jun 5 - Mon, Jun 8
Multiple Airlines Logo
7:00 am - 8:57 pm
YOW
-
ISP
13h 57m
1 stop
Multiple Airlines Logo
9:52 pm - 5:37 pm
ISP
-
YOW
19h 45m
2 stops
$793Multiple Airlines
Fri, Jun 26 - Sun, Jun 28
Multiple Airlines Logo
3:55 pm - 8:59 pm
YYZ
-
ISP
5h 04m
1 stop
Multiple Airlines Logo
11:56 am - 4:45 pm
ISP
-
YYZ
28h 49m
2 stops
$802Multiple Airlines
Sat, Jun 27 - Tue, Jun 30
Multiple Airlines Logo
3:55 pm - 10:30 am
YYZ
-
ISP
18h 35m
1 stop
Multiple Airlines Logo
10:00 am - 8:30 pm
ISP
-
YYZ
10h 30m
1 stop
$849Multiple Airlines
Sat, Jun 27 - Tue, Jun 30

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Islip, New York 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 832,500 searches. Data last updated May 21, 2026.
Use the filters below to find and compare flights from Ontario to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaIslip

YOW - ISP

YOWISP

Ottawa

Fri 6/19

7:00 am-8:57 pm

1 stop13h 57m

Islip Long Island

Sun 6/21

9:52 pm-5:35 pm

2 stops43h 43m

$460

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Fri 7/3

8:10 am-7:05 pm

1 stop10h 55m

Islip Long Island

Fri 7/10

8:31 pm-8:40 pm

1 stop24h 09m

$533

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Thu 6/18

7:45 am-8:57 pm

1 stop13h 12m

Islip Long Island

Thu 6/25

9:52 pm-11:35 pm

1 stop25h 43m

$586

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Fri 7/3

8:10 am-7:05 pm

1 stop10h 55m

Islip Long Island

Fri 7/10

8:43 pm-8:40 pm

2 stops23h 57m

$587

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Thu 6/18

7:45 am-8:57 pm

1 stop13h 12m

Islip Long Island

Thu 6/25

9:52 pm-7:44 pm

2 stops21h 52m

$595

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Fri 6/5

7:45 am-10:15 am

1 stop26h 30m

Islip Long Island

Mon 6/8

11:00 am-8:05 pm

1 stop9h 05m

$615
Quickest round-trip

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Fri 6/5

8:10 am-8:03 pm

2 stops11h 53m

Islip Long Island

Mon 6/8

11:00 am-8:05 pm

1 stop9h 05m

$713

OttawaIslip

YOW - ISP

YOWISP

Ottawa

Fri 6/26

7:00 am-8:57 pm

1 stop13h 57m

Islip Long Island

Sun 6/28

9:52 pm-5:37 pm

2 stops19h 45m

$793

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Sat 6/27

3:55 pm-8:59 pm

1 stop5h 04m

Islip Long Island

Tue 6/30

11:56 am-4:45 pm

2 stops28h 49m

$802

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Sat 6/27

3:55 pm-10:30 am

1 stop18h 35m

Islip Long Island

Tue 6/30

10:00 am-8:30 pm

1 stop10h 30m

$849

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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See travel insights to New York from

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

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 Islip, New York?

Air Canada, Porter Airlines and American Airlines are the top three most popular airlines that fly to Islip, New York from Region of Ontario according to our data. Air Canada is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 8 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

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

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

Fastest flight time

5h 04m

Direct flights

None
The fastest flight from Region of Ontario to Islip, New York takes 5h 04m
There are no direct flights from Region of Ontario to Islip, New York. There are no popular flight routes from Region of Ontario to Islip, New York.
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Frequently asked questions about flying from Ontario to Islip, New York

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

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

Finding the right flight to Islip from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Islip from Ontario with this policy.

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

momondo provides multiple filters to help you find the best flight to Islip from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Ontario to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Sat 6/20
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