NYC - ONT

$152 Find Cheap Flights from New York to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from New York to Ontario departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$305
Typical prices: $321-$476
Frontier
Tue 7/21Fri 8/14
LGA - ONT • 1 stop
Cheapest non-stop
$306
Typical prices: $288-$347
JetBlue
Sat 8/22Mon 8/31
JFK - ONT • Non-stop
Top airlines
Cheapest • from $305 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with JetBlue. Average duration is 6h 10m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $232 (round-trip)
Shortest trip • 8h 06m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 44% price drop
Most popular
Good to know
Good to know
+1
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Expert advice
Flight Deals

Cheap Flights from New York to Ontario (NYC-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from New York to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from New York to Ontario

Tue, Jul 21 - Fri, Aug 14
Frontier Logo
10:55 pm - 8:37 am
LGA
-
ONT
12h 42m
1 stop
Frontier Logo
8:17 am - 10:00 pm
ONT
-
LGA
10h 43m
1 stop
$305Frontier
Sat, Aug 22 - Mon, Aug 31
JetBlue Logo
6:50 pm - 9:59 pm
JFK
-
ONT
6h 09mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$306JetBlue
Thu, Aug 13 - Tue, Aug 18
Southwest Logo
12:30 pm - 7:25 pm
LGA
-
ONT
9h 55m
2 stops
Southwest Logo
11:55 pm - 12:35 pm
ONT
-
LGA
9h 40m
1 stop
$307Southwest
Thu, Aug 27 - Tue, Sep 1
JetBlue Logo
7:30 pm - 10:38 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$307JetBlue
Thu, Aug 13 - Tue, Aug 18
Southwest Logo
12:30 pm - 8:20 pm
LGA
-
ONT
10h 50m
1 stop
Southwest Logo
11:55 pm - 12:35 pm
ONT
-
LGA
9h 40m
1 stop
$308Southwest
Mon, Aug 24 - Tue, Sep 1
JetBlue Logo
7:30 pm - 10:38 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$308JetBlue
Mon, Aug 24 - Tue, Sep 1
JetBlue Logo
7:30 pm - 10:38 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$309JetBlue
Thu, Aug 20 - Wed, Aug 26
Frontier Logo
10:55 pm - 8:38 am
LGA
-
ONT
12h 43m
1 stop
Frontier Logo
9:37 am - 10:00 pm
ONT
-
LGA
9h 23m
1 stop
$310Frontier
Fri, Jul 17 - Mon, Jul 20
American Airlines Logo
7:02 am - 12:02 pm
JFK
-
ONT
8h 00m
1 stop
American Airlines Logo
10:10 pm - 10:12 am
ONT
-
JFK
9h 02m
1 stop
$312American Airlines
Wed, Sep 2 - Tue, Sep 15
Delta Logo
6:00 am - 10:42 am
JFK
-
ONT
7h 42m
1 stop
Delta Logo
5:15 pm - 6:26 am
ONT
-
JFK
10h 11m
1 stop
$313Delta
Booking Insights

KAYAK's insights & trends for New York to Ontario flights

Get data-powered insights and trends into flights from New York to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from New York to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from New York to Ontario departing in July.

What is the cheapest New York to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from New York to Ontario costs $248 on the route between New York John F Kennedy Intl Airport (JFK) and Ontario (ONT). It is also the most popular route.

What’s the cheapest day of the week to fly from New York to Ontario?

The average price of all round-trip flights from New York to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from New York to Ontario. For your return ticket, we recommend flying on a Monday and avoiding Wednesdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from New York to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from New York to Ontario is December, where tickets cost $71 (return) on average. On the other hand, the most expensive months are February and April, where the average cost of round-trip tickets is $189 and $159 respectively.

Can I save money by flying with a layover from New York to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $346 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from New York to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from New York to Ontario, you should book around 5 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from New York to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Harriet Baskas

Harriet Baskas

Expert on JFK

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$152
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from New York LaGuardia Airport to Ontario

When to book flights from New York to Ontario

Are your dates flexible? Find out the best times to travel from New York to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from New York to Ontario

  • What are my options for going from Ontario International Airport (ONT) to the city center?

    The quickest way to go from Ontario International Airport (ONT) to the city center is by driving, which usually takes between 5 and 10 minutes. Otherwise, you can choose to take public transportation, such as bus line 61. When you take the bus, you will arrive downtown in around 15 minutes.

  • Can I check a bag for free for my flight from New York to Ontario International Airport (ONT)?

    If you fly Economy from New York to Ontario International Airport (ONT), you will typically have to pay to check a bag. Both American and United Airlines have a maximum weight limit for checked bags of 50 lb.

  • What airline lounges are available at Newark Liberty International Airport (EWR)?

    Newark Liberty International Airport (EWR) has a few different airline lounges to choose from. In Terminal A, you will find the American Airlines Admirals Club, the Delta Sky Club, and the United Club. In Terminal B, there is the British Airways Lounge, the Delta Sky Club, and the Virgin Atlantic Clubhouse.

  • Are there any sustainable airlines that operate flights from New York to Ontario International Airport (ONT)?

    United Airlines has made choices to improve the environmental footprint of its operations. The company has vowed to become net zero with greenhouse gas emissions by the year 2050. It has also invested money in a variety of carbon capture and sequestration technologies and projects throughout the world.

  • What is the cheapest flight from New York to Ontario?

    In the last 5 days, the lowest price for a flight from New York to Ontario was $152 for a one-way ticket and $305 for a round-trip.

  • Do I need a passport to fly between New York and Ontario?

    No

  • Which airports will I be using when flying from New York to Ontario?

    New York is served by 3 major airports and there is only 1 main airport in Ontario. You will leave New York from one of these airports: Newark, New York John F Kennedy Intl, or New York LaGuardia. You will be arriving at Ontario.

  • Which airlines offer Wi-Fi service onboard planes from New York to Ontario?

    JetBlue, Delta, Alaska Airlines, American Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the New York to Ontario flight route.

  • Which aircraft models fly most regularly from New York to Ontario?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the New York to Ontario flight route.

  • Which airline alliances offer flights from New York to Ontario?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between New York and Ontario, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from New York to Ontario?

    There are nonstop flights from New York to Ontario on a daily basis.

  • Which is the best airline for flights from New York to Ontario, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from New York to Ontario are Southwest and Alaska Airlines. With an average price for the route of $386 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $378 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from New York to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from New York to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from New York to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from New York is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from New York to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to New York with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from New York to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from New York up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from New York to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $239 or less one-way and $345 or less round-trip.
  • It is possible to find flights to Ontario International Airport (ONT) from all three of the major New York airports, which are LaGuardia (LGA), Newark Liberty International Airport (EWR), and John F Kennedy International Airport (JFK). If you are flying with American Airlines, you will likely depart from LGA. When flying with United Airlines, you may depart from EWR.
  • Those that will be departing from Newark Liberty International Airport (EWR) have a few transportation options for going to the airport. When driving, it takes around 30 to 35 minutes. You can opt for public transportation instead, such as bus lines NEC and 62, which will bring you to EWR in around 40 minutes.
  • Direct flights are typically not offered from New York to Ontario International Airport (ONT), so you can expect to have at least one layover. When flying with American Airlines, you may stop in the city of Charlotte. When flying with United Airlines, you may stop in the city of Denver.
  • One of the easiest ways to save money during your travels from New York to Ontario International Airport (ONT) is to travel in Basic Economy, as opposed to regular Economy. Both American Airlines and United Airlines have a Basic Economy cabin for this route.
  • Most Economy tickets for flights from New York to Ontario International Airport (ONT) allow passengers to bring a carry-on suitcase with them for free. American Airlines has a maximum size limit for carry-ons of 18 x 14 x 8 inches, while United Airlines has a maximum size limit of 9 x 14 x 22 inches.

Prefer to fly direct from New York to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from New York to Ontario.
Find which airlines fly direct from New York to Ontario Airport, which days they fly and book direct flights.

Direct departures

New York to Ontario

Monday

JetBlue

JetBlue

Tuesday

JetBlue

JetBlue

Wednesday

JetBlue

JetBlue

Thursday

JetBlue

JetBlue

Friday

JetBlue

JetBlue

Saturday

JetBlue

JetBlue

Sunday

JetBlue

JetBlue

See more direct flights

Direct returns

Ontario to New York

Monday

JetBlue

JetBlue

Tuesday

JetBlue

JetBlue

Wednesday

JetBlue

JetBlue

Thursday

JetBlue

JetBlue

Friday

JetBlue

JetBlue

Saturday

JetBlue

JetBlue

Sunday

JetBlue

JetBlue

See more direct flights

Reviews of the top 5 airlines serving from New York to Ontario

 
See real verified KAYAK customer reviews for airlines flying from New York to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from New York to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4250 reviews
7.0Food
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

It was one and half hour late... Not sure if any other experience matters.

It was 2 hours 45 minutes late, for no apparently clear reason.

My bag was damaged and is now missing a wheel. I tried to buy a claim in on the website but it would not accept my confirmation # for submission. Other than that, everything else was good!

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

Planes never have enough leg room for someone my height so my knees were cramped and therefore started aching. Also, the Wi-Fi was down so I couldn't watch anything on my phone like I anticipated.

Wish Southwest had a power source to plug iPhone's into; wish Southwest also served up better snacks. Otherwise, the service & seat choices, if you check in on time for your flight, are excellent. I'm also happy to say that this particular flight had no delays.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

Only one side of the heafphone jack work. Crew was friendly and helpful.

The flight attendant was very polite and attentive. The food was good.

Wifi was spotty. Tray table was very dirty when I sat down.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Nothing really nondescript, the flight attendants were friendly and helpful.

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

When I agreed to give up my two seats because of overbooking by the airline, I should have been offered some sort of reward or credit towards a future flight. I was not. It was not until the next day when I mentioned it to a Jet Blue employee that I was advised to call 1-800-JetBlue. So here I am, having done Jet Blue a favor and I had to do the work to find out if I was going to get a credit. Such service

Domestic flights are good. Just stay away from international travel

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

It took an hour to get my bag after landing. Not exaggerating

I had a horrible experience with TSA at the airport. I had to go through TSA several times as there was some issue each time with a piece if clothing I had on. It was so busy & chaotic that I ended up forgetting my Apple laptop at TSA. It’s been days & I can’t get through to anyone to get useful info on how to get it back. I’m very angry because contacting lost & found shouldn’t be this difficult. Employees should know what is going on at their place of work. It seems no one knows as everyone’s answers are contradictory, or you can’t speak directly to anyone as the calls are automated. Very upsetting.

Everything was good instead change the gates! I missed my first flight because it was changed the gate and I didn’t know!

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

They never updated the boarding pass on their apps to show their delay

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Everything you need to know for your flight from New York to Ontario

Information on your arrival and departure airports