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Cheap flights from Ontario to New York from $232

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.
Frontier Logo
2:47 pm - 1:48 pmONT  Ontario-ISP Islip Long Island
20h 01m2 stops Las Vegas Harry Reid Intl Orlando
Frontier Logo
2:45 pm - 12:20 amISP  Islip Long Island-ONT Ontario
12h 35m2 stops Orlando Denver Intl
$578Frontier
Wed, Dec 2 - Thu, Dec 10
Southwest Logo
5:40 am - 5:00 pmONT  Ontario-ISP Islip Long Island
8h 20m2 stops Denver Intl Baltimore/Washington
Southwest Logo
6:00 am - 2:25 pmISP  Islip Long Island-ONT Ontario
11h 25m2 stops Baltimore/Washington Denver Intl
$627Southwest
Mon, Oct 26 - Fri, Oct 30
Southwest Logo
11:55 pm - 2:30 pmONT  Ontario-ISP Islip Long Island
11h 35m2 stops Chicago Midway Baltimore/Washington
Southwest Logo
12:25 pm - 9:55 pmISP  Islip Long Island-ONT Ontario
12h 30m2 stops Baltimore/Washington Las Vegas Harry Reid Intl
$647Southwest
Thu, Oct 29 - Mon, Nov 2
Frontier Logo
2:01 pm - 3:45 pmONT  Ontario-ISP Islip Long Island
22h 44m2 stops Las Vegas Harry Reid Intl Orlando
Frontier Logo
4:40 pm - 7:36 pmISP  Islip Long Island-ONT Ontario
29h 56m2 stops Orlando Las Vegas Harry Reid Intl
$916Frontier
Tue, Nov 24 - Sun, Nov 29
Frontier Logo
4:46 pm - 9:01 amONT  Ontario-ISP Islip Long Island
13h 15m2 stops Denver Intl Orlando
Frontier Logo
9:56 am - 7:07 amISP  Islip Long Island-ONT Ontario
24h 11m2 stops Orlando Las Vegas Harry Reid Intl
$978Frontier
Sun, Dec 27 - Mon, Jan 4
Frontier Logo
4:46 pm - 9:01 amONT  Ontario-ISP Islip Long Island
13h 15m2 stops Denver Intl Orlando
Frontier Logo
9:56 am - 6:15 amISP  Islip Long Island-ONT Ontario
23h 19m2 stops Orlando Las Vegas Harry Reid Intl
$983Frontier
Thu, Dec 24 - Mon, Dec 28
Frontier Logo
6:27 pm - 11:04 amONT  Ontario-ISP Islip Long Island
13h 37m2 stops Las Vegas Harry Reid Intl Orlando
Frontier Logo
11:59 am - 7:07 amISP  Islip Long Island-ONT Ontario
22h 08m2 stops Orlando Las Vegas Harry Reid Intl
$993Frontier
Sun, Mar 14 - Fri, Mar 19
Frontier Logo
6:27 pm - 11:04 amONT  Ontario-ISP Islip Long Island
13h 37m2 stops Las Vegas Harry Reid Intl Orlando
Frontier Logo
11:59 am - 12:05 amISP  Islip Long Island-ONT Ontario
15h 06m2 stops Orlando Denver Intl
$1,055Frontier
Thu, Mar 25 - Fri, Apr 2
Frontier Logo
4:46 pm - 9:01 amONT  Ontario-ISP Islip Long Island
13h 15m2 stops Denver Intl Orlando
Frontier Logo
9:56 am - 6:15 amISP  Islip Long Island-ONT Ontario
23h 19m2 stops Orlando Las Vegas Harry Reid Intl
$1,113Frontier
Tue, Dec 22 - Mon, Dec 28
Frontier Logo
4:46 pm - 9:01 amONT  Ontario-ISP Islip Long Island
13h 15m2 stops Denver Intl Orlando
Frontier Logo
9:56 am - 6:15 amISP  Islip Long Island-ONT Ontario
23h 19m2 stops Orlando Las Vegas Harry Reid Intl
$1,458Frontier
Thu, Dec 24 - Mon, Dec 28

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Frontier flights from Ontario to Islip, New York

Our best Frontier deals on Ontario to Islip, New York flight tickets
Frontier
Dec 2
ONT2:47 pmOntario
20h 01m
2 stops
ISP1:48 pmIslip Long Island
Dec 10
ISP2:45 pmIslip Long Island
12h 35m
2 stops
ONT12:20 amOntario
$578
Frontier
Nov 24
ONT2:01 pmOntario
22h 44m
2 stops
ISP3:45 pmIslip Long Island
Nov 29
ISP4:40 pmIslip Long Island
29h 56m
2 stops
ONT7:36 pmOntario
$916
Frontier
Dec 27
ONT4:46 pmOntario
13h 15m
2 stops
ISP9:01 amIslip Long Island
Jan 4
ISP9:56 amIslip Long Island
24h 11m
2 stops
ONT7:07 amOntario
$978

Southwest flights from Ontario to Islip, New York

Our best Southwest deals on Ontario to Islip, New York flight tickets
Southwest
Oct 26
ONT5:40 amOntario
8h 20m
2 stops
ISP5:00 pmIslip Long Island
Oct 30
ISP6:00 amIslip Long Island
11h 25m
2 stops
ONT2:25 pmOntario
$627
Southwest
Oct 29
ONT11:55 pmOntario
11h 35m
2 stops
ISP2:30 pmIslip Long Island
Nov 2
ISP12:25 pmIslip Long Island
12h 30m
2 stops
ONT9:55 pmOntario
$647

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Wed 12/2

2:47 pm-1:48 pm

2 stops20h 01m

Islip Long Island

Thu 12/10

2:45 pm-12:20 am

2 stops12h 35m

$578
Quickest round-trip

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Mon 10/26

5:40 am-5:00 pm

2 stops8h 20m

Islip Long Island

Fri 10/30

6:00 am-2:25 pm

2 stops11h 25m

$627

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 10/29

11:55 pm-2:30 pm

2 stops11h 35m

Islip Long Island

Mon 11/2

12:25 pm-9:55 pm

2 stops12h 30m

$647

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Tue 11/24

2:01 pm-3:45 pm

2 stops22h 44m

Islip Long Island

Sun 11/29

4:40 pm-7:36 pm

2 stops29h 56m

$916

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Sun 12/27

4:46 pm-9:01 am

2 stops13h 15m

Islip Long Island

Mon 1/4

9:56 am-7:07 am

2 stops24h 11m

$978

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 12/24

4:46 pm-9:01 am

2 stops13h 15m

Islip Long Island

Mon 12/28

9:56 am-6:15 am

2 stops23h 19m

$983

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Sun 3/14

6:27 pm-11:04 am

2 stops13h 37m

Islip Long Island

Fri 3/19

11:59 am-7:07 am

2 stops22h 08m

$993

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 3/25

6:27 pm-11:04 am

2 stops13h 37m

Islip Long Island

Fri 4/2

11:59 am-12:05 am

2 stops15h 06m

$1,055

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Tue 12/22

4:46 pm-9:01 am

2 stops13h 15m

Islip Long Island

Mon 12/28

9:56 am-6:15 am

2 stops23h 19m

$1,113

OntarioIslip

ONT Ontario - ISP Islip Long Island

ONTISP

Ontario

Thu 12/24

4:46 pm-9:01 am

2 stops13h 15m

Islip Long Island

Mon 12/28

9:56 am-6:15 am

2 stops23h 19m

$1,458

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Southwest and Frontier are the most popular carriers 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

$232

Fastest flight time

8h 20m

Direct flights

None
The best one-way flight to Islip, New York from Ontario in the past 72 hours is $232. The best round-trip flight deal from Ontario to Islip, New York found on momondo in the last 72 hours is $578.
The fastest flight from Ontario to Islip, New York takes 8h 20m
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 8h 20m, 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
7.9
4,216 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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