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Ontario

$110+ Cheap flights from New York State to Ontario (ONT)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
JFK — ONT
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from New York to Ontario

Keep the following information in mind while searching for New York to Ontario flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$166
(Gotogate)

One-way from

$110
(Southwest)

Popular in

December

Cheapest in

September

Average price

$309

Good round-trip deal

$260 or less

Good one-way deal

$143 or less
From New York to Ontario
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One-way flight from New York to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from New York to Ontario.
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Price to beat on a one-way flight from New York to Ontario.
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Find flight deals from New York to Ontario

Cheapest flights from New York to Ontario
Explore the most affordable flight options available from New York to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/86:00 amLGA - ONT
1 stop8h 10mSouthwest
mar. 11/115:45 amONT - LGA
1 stop9h 10mSouthwest
Deal found 9/9$160
This Flightnetwork deal was found by Cheapflights users on 9/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/2510:56 pmLGA - ONT
1 stop11h 57mFrontier
jue. 10/28:59 pmONT - LGA
1 stop22h 12mFrontier
Deal found 9/11$166
This Flightnetwork deal was found by Cheapflights users on 9/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/2510:56 pmLGA - ONT
1 stop11h 57mFrontier
mié. 10/18:59 pmONT - LGA
1 stop22h 12mFrontier
Deal found 9/10$167
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2910:56 pmLGA - ONT
1 stop23h 58mFrontier
jue. 10/28:59 pmONT - LGA
1 stop22h 12mFrontier
Deal found 9/10$168
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1710:00 pmLGA - ONT
1 stop12h 49mFrontier
jue. 10/236:53 amONT - LGA
1 stop12h 07mFrontier
Deal found 9/11$169
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1310:00 pmLGA - ONT
1 stop12h 29mFrontier
dom. 11/167:22 amONT - LGA
1 stop10h 42mFrontier
Deal found 9/11$170
This Justfly.com deal was found by Cheapflights users on 9/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/264:57 pmBUF - ONT
1 stop29h 57mFrontier
dom. 9/288:59 pmONT - BUF
1 stop16h 04mFrontier
Deal found 9/10$171
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2410:00 pmLGA - ONT
1 stop12h 49mFrontier
jue. 10/307:39 amONT - LGA
1 stop10h 25mFrontier
Deal found 9/10$171
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/29:00 amLGA - ONT
1 stop9h 35mSouthwest
mar. 10/75:15 amONT - LGA
1 stop8h 05mSouthwest
Deal found 9/10$172
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:05 amLGA - ONT
1 stop12h 10mSouthwest
mié. 11/1210:30 amONT - LGA
1 stop9h 45mSouthwest
Deal found 9/9$177
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/88:56 pmLGA - ONT
1 stop12h 56mFrontier
mar. 11/186:53 amONT - LGA
1 stop12h 07mFrontier
Deal found 9/10$178
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/88:56 pmLGA - ONT
1 stop12h 56mFrontier
dom. 11/167:47 amONT - LGA
1 stop10h 17mFrontier
Deal found 9/10$180

Cheapflights Fare Finder

 
Customize your flight search to find flights from New York to Ontario 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 septiembre 11, 2025.
Use the filters below to find and compare flights from New York State to Ontario that are best for you.

Fly from

New York

Fly to

Ontario

Route

Depart

Return

Price

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

vie. 9/26

4:57 pm-7:54 pm

1 stop29h 57m

Ontario

dom. 9/28

8:59 pm-4:03 pm

1 stop16h 04m

$171

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

mié. 9/24

10:00 pm-3:29 pm

1 stop20h 29m

Ontario

vie. 9/26

8:59 pm-10:11 pm

1 stop22h 12m

$188

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

lun. 11/10

6:05 am-3:15 pm

1 stop12h 10m

Ontario

mié. 11/12

9:55 am-9:55 pm

2 stops9h 00m

$213

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

mié. 1/28

4:30 pm-9:45 pm

1 stop8h 15m

Ontario

lun. 2/2

6:50 am-5:30 pm

1 stop7h 40m

$215

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

vie. 10/24

6:59 am-11:47 am

1 stop7h 48m

Ontario

lun. 10/27

10:47 pm-6:30 am

1 stop28h 43m

$218

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

jue. 9/25

6:59 am-8:56 pm

1 stop16h 57m

Ontario

sáb. 9/27

8:00 am-5:30 am

1 stop18h 30m

$218

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

jue. 10/23

6:59 am-9:55 pm

1 stop17h 56m

Ontario

lun. 10/27

10:47 pm-6:30 am

1 stop28h 43m

$218

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

vie. 10/24

6:59 am-10:05 pm

1 stop18h 06m

Ontario

mar. 10/28

8:00 am-6:30 am

1 stop19h 30m

$220

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

vie. 9/26

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

dom. 9/28

10:56 pm-7:18 am

Nonstop5h 22m

$234

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

vie. 9/26

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

mar. 9/30

10:56 pm-7:18 am

Nonstop5h 22m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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Best time to book a flight from New York to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from New York 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 New York State to Ontario

What is the cheapest month to book a flight from State of New York to Ontario?

Currently, August is the cheapest month in which you can book a flight from State of New York to Ontario (average of $246). Flying from State of New York to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from NY to ONT?

Find hourly flight availability from New York to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of New York to Ontario as you normally would.

Weekly flight availability from State of New York to Ontario

Explore weekly flight availability from New York to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated septiembre 11, 2025.

The most flights from USNY to ONT are scheduled on a Wednesday (4 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from State of New York to Ontario?

Related info for your journey

Find useful and relevant information for your journey from New York to Ontario. 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 into for flights to Ontario from New York?

    For a flight from New York to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from State of New York to Ontario?

    Airlines like Frontier, Southwest, and JetBlue fly from State of New York to Ontario in about 5h 54m. The time it takes to get you to your destination can typically vary by up to 24h 03m. State of New York and Ontario are separated by a distance of 2422 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from State of New York to Ontario one-way?

    $115 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and JetBlue, with prices starting from $123 and $124, respectively.

  • What are the most popular routes from State of New York to Ontario?

    The most popular flight routes from State of New York to Ontario are New York John F Kennedy Intl - Ontario, Newark - Ontario and New York LaGuardia - Ontario.

  • What are the most reliable airlines from State of New York to Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of New York to Ontario on time: JetBlue (53%), Etihad Airways (51%), Air Serbia (46%).

  • What are the cheapest flights from State of New York to Ontario?

    Looking at all options, your cheapest flight can be booked for $116. While the most popular route (New York John F Kennedy Intl - Ontario) can be booked for $198 on average, our data indicates $245 when flying from State of New York to Ontario.

  • Can I find deals for flights from New York to Ontario that include hotel bookings?

    Yes. In addition to deals on New York to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New York to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New York to Ontario.

  • Can I find deals for business class flights from New York to Ontario?

    Yes. Cheapflights offers flight deals from New York to Ontario 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 State of New York to Ontario?

    Currently, August is the cheapest month in which you can book a flight from State of New York to Ontario (average of $246). Flying from State of New York to Ontario in March is currently the most expensive (average of $328). 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.

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Alternative routes for New York to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from New York to Ontario

Discover the top 7 airlines that operate flights from New York to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$271FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$116Average$262FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$214Average$533FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$226Average$333FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$228Average$431FlexibilityNo cancel feeOn-time71%
DeltaCheapest$260Average$428FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$286Average$449FlexibilityNo cancel feeOn-time63%

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