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Ontario

$111+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
JFK — ONT
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$234
(Frontier)

One-way from

$111
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$383

Good round-trip deal

$297 or less

Good one-way deal

$173 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. 7% potential increase in price ($27 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 June 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 junio 12, 2025.

This Frontier deal was found by Cheapflights users on 6/12. 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.
mar. 7/296:59 amJFK - ONT
1 stop12h 21mFrontier
mié. 8/67:22 pmONT - JFK
1 stop7h 08mFrontier
Deal found 6/12$234
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/296:30 amLGA - ONT
2 stops9h 10mSouthwest
dom. 8/318:00 amONT - LGA
2 stops9h 05mSouthwest
Deal found 6/11$249
This JetBlue deal was found by Cheapflights users on 6/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/166:35 pmJFK - ONT
Nonstop5h 54mJetBlue
mar. 9/2310:56 pmONT - JFK
Nonstop5h 22mJetBlue
Deal found 6/12$257
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/163:00 pmJFK - ONT
1 stop10h 41mDelta
lun. 9/2210:59 pmONT - JFK
1 stop7h 46mDelta
Deal found 6/10$267
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/292:55 pmLGA - ONT
1 stop9h 43mAmerican Airlines
mié. 8/610:29 pmONT - LGA
1 stop7h 35mAmerican Airlines
Deal found 6/11$267
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/411:55 amEWR - ONT
1 stop8h 45mUnited Airlines
lun. 7/76:28 pmONT - EWR
1 stop8h 08mUnited Airlines
Deal found 6/10$267
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/235:29 amEWR - ONT
1 stop7h 32mAmerican Airlines
mié. 7/307:05 pmONT - EWR
2 stops11h 49mAmerican Airlines
Deal found 6/12$272
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1210:59 pmLGA - ONT
1 stop27h 51mFrontier
dom. 9/146:11 pmONT - LGA
1 stop24h 55mFrontier
Deal found 6/10$274
This Trip.com deal was found by Cheapflights users on 6/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/26:53 amEWR - ONT
1 stop14h 45mMultiple Airlines
mié. 7/97:00 amONT - EWR
1 stop20h 05mMultiple Airlines
Deal found 6/12$274
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/225:00 pmLGA - ONT
1 stop8h 27mDelta
mar. 7/2910:05 pmONT - LGA
1 stop8h 41mDelta
Deal found 6/11$277
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/167:19 amEWR - ONT
1 stop9h 50mAlaska Airlines
mar. 9/233:04 pmONT - EWR
1 stop11h 55mAlaska Airlines
Deal found 6/10$277
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/201:15 pmEWR - ONT
1 stop9h 27mDelta
mié. 9/2412:00 pmONT - EWR
1 stop8h 00mDelta
Deal found 6/10$282

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 junio 12, 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

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mar. 7/29

6:59 am-4:20 pm

1 stop12h 21m

Ontario

mié. 8/6

7:22 pm-5:30 am

1 stop7h 08m

$234

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

vie. 8/29

6:30 am-12:40 pm

2 stops9h 10m

Ontario

dom. 8/31

8:00 am-8:05 pm

2 stops9h 05m

$249

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mar. 9/16

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

mar. 9/23

10:56 pm-7:18 am

Nonstop5h 22m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

mar. 7/29

2:55 pm-9:38 pm

1 stop9h 43m

Ontario

mié. 8/6

10:29 pm-9:04 am

1 stop7h 35m

$267

NewarkOntario

EWR - ONT

EWRONT

Newark

vie. 7/4

11:55 am-5:40 pm

1 stop8h 45m

Ontario

lun. 7/7

6:28 pm-5:36 am

1 stop8h 08m

$267

NewarkOntario

EWR - ONT

EWRONT

Newark

mié. 7/23

5:29 am-10:01 am

1 stop7h 32m

Ontario

mié. 7/30

7:05 pm-9:54 am

2 stops11h 49m

$272

NewarkOntario

EWR - ONT

EWRONT

Newark

mié. 7/2

6:53 am-6:38 pm

1 stop14h 45m

Ontario

mié. 7/9

7:00 am-6:05 am

1 stop20h 05m

$274

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

vie. 9/12

10:59 pm-11:50 pm

1 stop27h 51m

Ontario

dom. 9/14

6:11 pm-10:06 pm

1 stop24h 55m

$274

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mar. 9/16

6:00 am-11:24 am

1 stop8h 24m

Ontario

mar. 9/23

10:59 pm-11:13 am

1 stop9h 14m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

mar. 9/16

7:19 am-2:09 pm

1 stop9h 50m

Ontario

mar. 9/23

3:04 pm-5:59 am

1 stop11h 55m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 junio 12, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated junio 12, 2025.
To help decide which airline to fly from New York to Ontario, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    $124 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $128 and $134, 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: Air Serbia (67%), Etihad Airways (66%), JetBlue (66%).

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

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (New York John F Kennedy Intl - Ontario) can be booked for $214 on average our data indicates $298 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.

See more FAQs

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$230FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$143Average$224FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$192Average$424FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$236Average$371FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$426FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$574FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$286Average$457FlexibilityNo cancel feeOn-time63%

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