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Ontario

$115+ Cheap flights from New York, NY (NYC) 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
NYC — ONT
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from New York to Ontario are usually found in September or July, booked 54 days in advance, depart on a Friday or Thursday and return on a Sunday

Cheap flight deals from New York to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from New York (NYC) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 31, 2025.

Round-trip from

$245
(Cheapflightsfares)

One-way from

$115
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$297

Good round-trip deal

$277 or less

Good one-way deal

$153 or less
From New York (NYC) to Ontario
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One-way flight from New York (NYC) to Ontario
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Highest demand for flights based on searches. 13% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from New York (NYC) to Ontario.
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Price to beat on a one-way flight from New York (NYC) 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 julio 31, 2025.

This Rumbo deal was found by Cheapflights users on 7/29. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/306:50 pmJFK - ONT
Nonstop6h 09mJetBlue
sáb. 9/610:56 pmONT - JFK
Nonstop5h 22mJetBlue
Deal found 7/29$248
This Gotogate deal was found by Cheapflights users on 7/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/306:59 amJFK - ONT
1 stop12h 12mFrontier
sáb. 9/61:37 pmONT - JFK
1 stop12h 53mFrontier
Deal found 7/30$255
This Gotogate deal was found by Cheapflights users on 7/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3010:50 pmLGA - ONT
1 stop28h 00mFrontier
sáb. 9/68:59 pmONT - LGA
1 stop22h 12mFrontier
Deal found 7/30$255
This SmartFares deal was found by Cheapflights users on 7/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/155:48 pmEWR - ONT
1 stop9h 06mAlaska Airlines
lun. 9/223:06 pmONT - EWR
1 stop11h 53mAlaska Airlines
Deal found 7/30$255
This United Airlines deal was found by Cheapflights users on 7/29. 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.
mié. 9/1711:25 amEWR - ONT
1 stop9h 12mUnited Airlines
mar. 9/237:00 amONT - EWR
1 stop7h 47mUnited Airlines
Deal found 7/29$262
This American Airlines deal was found by Cheapflights users on 7/30. 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.
jue. 9/47:00 amEWR - ONT
1 stop7h 56mAmerican Airlines
mié. 9/101:10 pmONT - EWR
1 stop6h 49mAmerican Airlines
Deal found 7/30$265
This American Airlines deal was found by Cheapflights users on 7/29. 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.
jue. 9/112:59 pmLGA - ONT
1 stop9h 12mAmerican Airlines
lun. 9/1510:35 pmONT - LGA
1 stop9h 54mAmerican Airlines
Deal found 7/29$267
This American Airlines deal was found by Cheapflights users on 7/29. 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. 8/276:59 amJFK - ONT
2 stops9h 40mAmerican Airlines
mié. 9/38:15 amONT - JFK
1 stop10h 14mAmerican Airlines
Deal found 7/29$272
This Delta deal was found by Cheapflights users on 7/31. 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. 9/161:30 pmJFK - ONT
1 stop8h 45mDelta
sáb. 9/2011:50 amONT - JFK
1 stop9h 19mDelta
Deal found 7/31$281
This Delta deal was found by Cheapflights users on 7/29. 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. 11/14:51 pmEWR - ONT
1 stop7h 29mDelta
lun. 11/105:05 pmONT - EWR
1 stop10h 05mDelta
Deal found 7/29$281
This Delta deal was found by Cheapflights users on 7/31. 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.
jue. 9/113:00 pmLGA - ONT
1 stop10h 23mDelta
lun. 9/1510:00 pmONT - LGA
2 stops10h 46mDelta
Deal found 7/31$282
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/155:48 pmEWR - ONT
1 stop9h 06mHawaiian Airlines
mié. 10/226:00 amONT - EWR
1 stop9h 29mHawaiian Airlines
Deal found 7/30$290

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 julio 31, 2025.
Use the filters below to find and compare flights from New York 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

sáb. 8/30

6:50 pm-9:59 pm

Nonstop6h 09m

Ontario

sáb. 9/6

10:56 pm-7:18 am

Nonstop5h 22m

$248

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

sáb. 8/30

10:50 pm-11:50 pm

1 stop28h 00m

Ontario

sáb. 9/6

8:59 pm-10:11 pm

1 stop22h 12m

$255

NewarkOntario

EWR - ONT

EWRONT

Newark

lun. 9/15

5:48 pm-11:54 pm

1 stop9h 06m

Ontario

lun. 9/22

3:06 pm-5:59 am

1 stop11h 53m

$255

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

sáb. 8/30

6:59 am-4:11 pm

1 stop12h 12m

Ontario

sáb. 9/6

1:37 pm-5:30 am

1 stop12h 53m

$255

NewarkOntario

EWR - ONT

EWRONT

Newark

mié. 9/17

11:25 am-5:37 pm

1 stop9h 12m

Ontario

mar. 9/23

7:00 am-5:47 pm

1 stop7h 47m

$262

NewarkOntario

EWR - ONT

EWRONT

Newark

jue. 9/4

7:00 am-11:56 am

1 stop7h 56m

Ontario

mié. 9/10

1:10 pm-10:59 pm

1 stop6h 49m

$265

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

jue. 9/11

2:59 pm-9:11 pm

1 stop9h 12m

Ontario

lun. 9/15

10:35 pm-11:29 am

1 stop9h 54m

$267

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mié. 8/27

6:59 am-1:39 pm

2 stops9h 40m

Ontario

mié. 9/3

8:15 am-9:29 pm

1 stop10h 14m

$272

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mar. 9/16

6:00 am-10:42 am

1 stop7h 42m

Ontario

sáb. 9/20

11:50 am-12:09 am

1 stop9h 19m

$281

NewarkOntario

EWR - ONT

EWRONT

Newark

mié. 9/17

12:11 pm-7:15 pm

1 stop10h 04m

Ontario

vie. 9/26

11:55 am-11:01 pm

1 stop8h 06m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 32 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 to Ontario

How far ahead should I book a flight from New York to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from New York to Ontario. Price data was last updated on July 25, 2025.

The best time to book flights from New York to Ontario is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from New York to Ontario (average of $246). Flying from 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 NYC 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 julio 31, 2025.

When flying from New York to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from New York to Ontario?

Use this chart to determine the cheapest time to fly round-trip from New York to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their New York to Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

What’s the top layover airport for flights from New York to Ontario?

Share of 1-stop round-trip flights from New York to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.

Las Vegas (LAS) – chosen by Cheapflights users on 90% of 1-stop itineraries from New York to Ontario on Cheapflights.

What’s the cheapest layover airport for flights from New York to Ontario?

Average round-trip fare for 1-stop flights from New York to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $136.

What’s the fastest layover option from New York to Ontario?

Shortest average travel time for 1-stop one-way flights from New York to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 7h 52m.

Which airport typically offers the quickest layover for flights from New York to Ontario?

Average layover duration for 1-stop one-way flights from New York to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 13m.

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 julio 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from New York to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

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

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

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
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

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
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

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
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

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. Ontario is the only Ontario airport and it handles 0 inbound flights from New York per day. 7 airlines have flights to Ontario from New York on a regular basis.

  • What are the cheapest airlines flying from New York to Ontario round-trip?

    Our cheapest airline available from New York to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $245 on this airline. Additional options worth looking into are JetBlue and Alaska Airlines, starting at $248 and $255 round-trip. Users have found that Frontier is 29% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $125. Alaska Airlines flights start at $126 while deals on American Airlines start at $127 one-way.

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

    The most popular route from New York to Ontario is Newark - Ontario. You may also consider New York John F Kennedy Intl - Ontario or New York LaGuardia - Ontario.

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

    Before booking your flight to Ontario from New York, check out the most reliable airlines to get you to your destination on time: Hawaiian Airlines (82%), Air Serbia (63%), JetBlue( 60%).

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

    On average you can expect to pay $238 for a flight from New York to Ontario. The cheapest flight overall is $118 while the most popular route, (Newark - Ontario) is currently priced at $197.

  • 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 New York to Ontario?

    Currently, August is the cheapest month in which you can book a flight from New York to Ontario (average of $246). Flying from 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.
John F Kennedy Intl to Los Angeles flights
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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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$256FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$116Average$208FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$214Average$539FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$226Average$331FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$228Average$403FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$390FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$286Average$447FlexibilityNo cancel feeOn-time63%

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