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Cheap flights from Ontario to New York from $324

1 adult
1 adult, Economy, 0 bags

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
6:53 pm - 1:24 pmONT  Ontario-ISP Islip Long Island
15h 31m2 stops San Francisco Boston Logan Intl
Multiple Airlines Logo
7:30 am - 6:44 pmISP  Islip Long Island-ONT Ontario
14h 14m2 stops Boston Logan Intl Chicago O'Hare Intl
$940Multiple Airlines
Fri, Feb 19 - Sat, Feb 27
Multiple Airlines Logo
7:13 pm - 8:15 pmONT  Ontario-ISP Islip Long Island
22h 02m2 stops San Francisco Boston Logan Intl
Multiple Airlines Logo
7:31 am - 6:16 pmISP  Islip Long Island-ONT Ontario
13h 45m2 stops Boston Logan Intl San Francisco
$1,050Multiple Airlines
Sun, Sep 20 - Wed, Sep 23

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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
Quickest round-trip

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Fri 2/19

6:53 pm-1:24 pm

2 stops15h 31m

Islip Long Island

Sat 2/27

7:30 am-6:44 pm

2 stops14h 14m

$940

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Sun 9/20

7:13 pm-8:15 pm

2 stops22h 02m

Islip Long Island

Wed 9/23

7:31 am-6:16 pm

2 stops13h 45m

$1,050
Cheapest one-way

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Wed 9/9

2:30 pm-7:05 pm

3 stops25h 35m

$324
Quickest one-way

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 9/10

8:24 pm-4:58 pm

2 stops17h 34m

$325

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Sat 9/12

2:30 pm-4:58 pm

2 stops23h 28m

$337

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Wed 9/9

2:30 pm-4:58 pm

2 stops23h 28m

$349

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Sat 9/12

2:30 pm-11:12 am

3 stops41h 42m

$359

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 9/10

8:24 pm-11:20 am

3 stops35h 56m

$375

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 9/10

1:18 pm-10:30 am

2 stops18h 12m

$686

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to New York from

How to get the cheapest flight ticket from 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 is the cheapest airline that flies from Ontario to Islip Long Island?

Frontier is the most popular carrier operating from Ontario to Islip Long Island

What airlines fly to Islip, New York?

JetBlue, United Airlines and American Airlines are the top three most popular airlines that fly to Islip, New York from Ontario according to our data. JetBlue is the first choice among our users, with 37% 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.

When to book flights from Ontario to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Islip, New York (ONT to ISP) flight deals and tips

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

Best Price Found

$324

Fastest flight time

15h 31m

Direct flights

None
The best one-way flight to Islip, New York from Ontario in the past 72 hours is $324. The best round-trip flight deal from Ontario to Islip, New York found on momondo in the last 72 hours is $940.
The fastest flight from Ontario to Islip, New York takes 15h 31m
There are no direct flights from Ontario to Islip, New York. There are no popular flight routes from Ontario to Islip, New York.
Search flight deals

Frequently asked questions about flying from Ontario to Islip, New York

  • How far is Ontario to Islip Long Island by plane?

    Ontario and Islip Long Island are 2454.1 mi apart from one another. Flights usually cover this in 15h 31m, depending on flying conditions and air traffic around both airports.

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

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

  • How many operators does momondo search for flights from Ontario Airport to Islip Long Island Airport?

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

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

    The travel and health documents required for your trip to Islip Long Island 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 Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Islip, New York?

Best airlines flying from Ontario to Islip, New York

Compare and see reviews for airlines that fly from Ontario to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $396Free CancellationRating
8.0
4,192 reviews
Search Southwest flights

Traveling to a place near New York?

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

Why use momondo?

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

It is quick and easy to find Ontario to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

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

momondo does allow users to show only those flights to Islip from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Ontario.

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

Yes. momondo can track prices for Ontario to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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