ONT - LGA

$80 Find Cheap Flights from Ontario to New York LaGuardia Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to LaGuardia 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

KAYAK searches hundreds of travel sites at once for deals on flights to New York LaGuardia Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to New York, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to New York, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Ontario to LaGuardia (ONT-LGA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to LaGuardia 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 Ontario to LaGuardia

Sat, Sep 6 - Tue, Sep 9
Southwest Logo
10:40 am - 8:45 pmONT-LGA
7h 05m1 stop
Southwest Logo
5:00 pm - 10:05 pmLGA-ONT
8h 05m1 stop
$159Southwest
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Sat, Sep 6 - Tue, Sep 9
Southwest Logo
11:15 am - 11:20 pmONT-LGA
9h 05m2 stops
Southwest Logo
5:00 pm - 10:05 pmLGA-ONT
8h 05m1 stop
$164Southwest
Find Deal
Sat, Sep 6 - Tue, Sep 9
Southwest Logo
11:15 am - 11:20 pmONT-LGA
9h 05m2 stops
Southwest Logo
2:30 pm - 9:00 pmLGA-ONT
9h 30m2 stops
$169Southwest
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Tue, Aug 5 - Tue, Aug 12
American Airlines Logo
6:10 am - 5:52 pmONT-LGA
8h 42m1 stop
American Airlines Logo
7:30 am - 1:39 pmLGA-ONT
9h 09m1 stop
$173American Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
American Airlines Logo
11:59 pm - 1:00 pmONT-LGA
10h 01m1 stop
American Airlines Logo
6:30 am - 11:52 amLGA-ONT
8h 22m1 stop
$180American Airlines
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Tue, Aug 19 - Mon, Sep 8
American Airlines Logo
11:59 pm - 12:00 pmONT-LGA
9h 01m1 stop
American Airlines Logo
9:01 pm - 10:03 amLGA-ONT
16h 02m1 stop
$201American Airlines
Find Deal
Sun, Aug 3 - Wed, Aug 6
American Airlines Logo
11:59 pm - 10:30 amONT-LGA
7h 31m1 stop
American Airlines Logo
4:00 pm - 10:48 pmLGA-ONT
9h 48m1 stop
$222American Airlines
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Mon, Aug 11 - Tue, Aug 19
Delta Logo
10:00 pm - 8:15 amONT-LGA
7h 15m1 stop
Delta Logo
1:59 pm - 7:11 pmLGA-ONT
8h 12m1 stop
$276Delta
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Tue, Aug 19 - Sat, Aug 23
Delta Logo
11:45 am - 11:24 pmONT-LGA
8h 39m1 stop
Delta Logo
6:00 am - 10:35 amLGA-ONT
7h 35m1 stop
$277Delta
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Fri, Aug 1 - Tue, Aug 5
Delta Logo
11:40 am - 10:25 pmONT-LGA
7h 45m1 stop
Delta Logo
3:00 pm - 10:27 pmLGA-ONT
10h 27m1 stop
$281Delta
Find Deal
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KAYAK's insights & trends for Ontario to LaGuardia flights

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

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

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

If you are looking for a flight deal from Ontario to New York LaGuardia Airport, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from New York LaGuardia Airport, Thursday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to New York LaGuardia Airport, 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 Ontario to New York LaGuardia Airport is September, where tickets cost $318 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $572 and $567 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to New York LaGuardia Airport, 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 Ontario to New York LaGuardia Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$80
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Ontario to New York LaGuardia Airport

When to book flights from Ontario to LaGuardia

Are your dates flexible? Find out the best times to travel from Ontario to LaGuardia 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 Ontario to New York LaGuardia Airport flights

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

    In the last 3 days, the lowest price for a flight from Ontario to New York LaGuardia Airport was $80 for a one-way ticket and $159 for a round-trip.

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

    No

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

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

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

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

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

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

  • What is the most popular layover when flying to New York LaGuardia Airport from Ontario?

    Dallas is the most popular layover city among KAYAK users traveling from Ontario to New York LaGuardia Airport.

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

    The two airlines most popular with KAYAK users for flights from Ontario to New York are Southwest and Delta. With an average price for the route of $442 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $398 and an overall rating of 8.0.

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

    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 Ontario to New York LaGuardia Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to New York LaGuardia Airport from Ontario 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 Ontario to New York LaGuardia Airport?

    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 New York LaGuardia Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and LGA can sometimes prove cheaper using this method.

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

    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 New York LaGuardia Airport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Ontario to LaGuardia

 
See real verified KAYAK customer reviews for airlines flying from Ontario to New York. 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 Ontario to LaGuardia? 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.
8.0
SouthwestOverall score based on 4252 reviews
8.6Crew
7.0Food
8.0Comfort
8.1Boarding
7.6Entertainment
Airline reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

4.0 OkayTraci, Jun 2025OAK - SEA
Read more Southwest reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The way BCN airport handled boarding was a huge improvement over our trip to Spain from JFK. Instead of gate-mosquitos edging in before their zone was called, in BCN they had clearly marked lines for Zones 1-8 and people just lined up correctly. The flight itself was uneventful. The meal (curried chicken and rice) was one of the better meals we've had on Delta. Entertainment options were plentiful, power chargers were available in Main Cabin, and seats were decent. Flight staff were very friendly and positive throughout the 8 hour flight.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

I like for how they process during check in. It was very smoothly.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

After I checked in, I realized we had no seat assignment. It said they would be assigned at the gate. This was really frustrating because I usually use a lounge before flights, but I couldn't because I had to be at the gate to ensure we got our seat assignments. The gate agent arrived an hour before the flight left. I was the first one up to ask about seat assignments. She told us to wait for names to be called. Dozens of other passengers were paged, but we were not. Finally, I asked my husband to ask. He went up and was also told to wait. About 10 minutes later, they called for boarding. We still had not been told our seats. We went back to the desk and they were in a panic, saying we actually weren't on that flight. Then they made an announcement telling the stand by passengers to not board (in case we needed their seats). It was so stressful and unprofessional. Finally they gave us our seats. I have no idea what happened and why the two desk agents seemed to have conflicting ideas about our seats, whether we were on that flight etc.

Subject: Complaint Regarding Disrespectful Behavior by Delta Air Lines Staff at Boarding Gate Dear Delta Air Lines Team, I am writing to formally file a complaint regarding the behavior of a staff member at the boarding gate today, May 14, 2025, at Las Américas International Airport. While we were preparing to board flight DL-1829 to New York, scheduled for 2:28 PM at gate T-11, we were informed that the aircraft was experiencing water system issues and that passengers were advised to use the restroom before boarding. I politely approached one of the Delta staff members to ask whether the lavatory would be partially or completely unavailable during the flight, as I am traveling with a baby in my arms. The employee’s response was extremely rude and arrogant. He replied, in an unnecessarily hostile tone, something along the lines of: “It’s either that or we cancel the flight — do you want us to cancel the flight?” This response lacked any empathy or professionalism. I understand that technical issues can arise, but that does not excuse such inappropriate treatment of passengers. I felt deeply disrespected and disappointed by the interaction. I sincerely hope appropriate measures are taken, and that all staff members receive the necessary training to treat passengers with courtesy, especially in delicate situations like this one.

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Cramped seat even in economy plus seat 10A. Over booked flight, no space for the bags

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

get E+, a must for 5 hours flight if you are tall

Multiple delays and not straight answer from the United team

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

Food and flight attendents with positive dispositions and friendly behavior, more professional attitudes

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Liked the hospitality . The ight took us 6 hrs to get from fort myers to ewr.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

Overall great. I was forced to check my carry-on backpack from EWR to BOS but it came out on the luggage carousel so fast I didn't even get delayed for my pickup.

A cookie and a soda, packed like sardines, will never be a positive experience. Also, boarded a 5:30 flight at 7:45pm

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

The flight was two hours late to take off. The captain kept making announcements in English, but the volume on the speakers was low and we could not hear him. The flight attendant’s French translation was loud and clear, but we couldn’t understand French. The crew was nowhere to be found to relay what the captain was announcing. Very frustrating experience. American has to do better.

Paid $35 and not able to access the internet at all.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

You ant watch TV if you don't have a device, the seats have more space, and the snacks are different.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

I guess you get what you pay for. The seats are very uncomfortable and very little space. The snacks were pricey.

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

Would be great if Frontier can Assign Seats together under one PNR

They cancelled the flight and did nothing. I should be compensated for my uber rides to and from airport. Not a good service by frontier or kayak.

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