LGA - ONT

$75 Find Cheap Flights from New York LaGuardia Airport to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from LaGuardia to Ontario departing on 6/3. 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 Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from New York to Ontario, 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 New York to Ontario, as well as popular online travel agencies
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Cheap Flights from LaGuardia to Ontario (LGA-ONT)

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

Tue, Jun 24 - Tue, Jul 1
Frontier Logo
10:59 pm - 9:01 amLGA-ONT
13h 02m1 stop
Frontier Logo
10:06 am - 8:59 pmONT-LGA
7h 53m1 stop
$260Frontier
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Sun, Jun 15 - Tue, Jun 17
Frontier Logo
10:55 pm - 9:01 amLGA-ONT
13h 06m1 stop
Frontier Logo
10:06 am - 8:59 pmONT-LGA
7h 53m1 stop
$262Frontier
Find Deal
Tue, Jul 22 - Tue, Jul 29
Delta Logo
4:00 pm - 10:27 pmLGA-ONT
9h 27m1 stop
Delta Logo
11:40 am - 10:25 pmONT-LGA
7h 45m1 stop
$277Delta
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Tue, Jul 29 - Thu, Aug 28
Delta Logo
6:00 am - 10:30 amLGA-ONT
7h 30m1 stop
Delta Logo
7:05 am - 5:49 pmONT-LGA
7h 44m1 stop
$287Delta
Find Deal
Sat, Jun 21 - Sun, Jun 22
Southwest Logo
7:15 am - 2:55 pmLGA-ONT
10h 40m1 stop
Southwest Logo
5:10 am - 9:40 pmONT-LGA
13h 30m1 stop
$332Southwest
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Thu, Oct 9 - Tue, Oct 14
Southwest Logo
6:40 am - 2:15 pmLGA-ONT
10h 35m1 stop
Southwest Logo
9:10 pm - 9:15 amONT-LGA
9h 05m2 stops
$347Southwest
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Fri, Jul 4 - Tue, Jul 15
United Airlines Logo
1:17 pm - 6:30 pmLGA-ONT
8h 13m1 stop
United Airlines Logo
7:00 am - 7:20 pmONT-LGA
9h 20m1 stop
$357United Airlines
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Fri, Jul 4 - Thu, Jul 10
United Airlines Logo
1:17 pm - 6:30 pmLGA-ONT
8h 13m1 stop
United Airlines Logo
7:00 am - 7:20 pmONT-LGA
9h 20m1 stop
$367United Airlines
Find Deal
Fri, Jun 20 - Fri, Jul 4
American Airlines Logo
4:00 pm - 11:02 pmLGA-ONT
10h 02m1 stop
American Airlines Logo
6:10 am - 6:29 pmONT-LGA
9h 19m2 stops
$417American Airlines
Find Deal
Thu, Jun 19 - Fri, Jul 4
American Airlines Logo
3:00 pm - 10:14 pmLGA-ONT
10h 14m1 stop
American Airlines Logo
6:23 am - 8:59 pmONT-LGA
11h 36m2 stops
$422American Airlines
Find Deal
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KAYAK's insights & trends for LaGuardia to Ontario flights

Get data-powered insights and trends into flights from LaGuardia to Ontario 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 New York LaGuardia Airport to Ontario?

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

For New York LaGuardia Airport to Ontario, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Ontario back to New York LaGuardia Airport, the best deals are generally found on Tuesday, with Sunday being the most expensive.

What is the cheapest month to fly from New York LaGuardia Airport 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 LaGuardia Airport 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 LaGuardia Airport to Ontario is June, where tickets cost $286 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $477 and $447 respectively.

Good to know

Low seasonMarch
High seasonDecember
Cheapest flight$75
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from New York LaGuardia Airport to Ontario

When to book flights from LaGuardia to Ontario

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

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

    In the last 3 days, the lowest price for a flight from New York LaGuardia Airport to Ontario was $75 for a one-way ticket and $260 for a round-trip.

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

    No, a passport isn't needed to fly from New York LaGuardia Airport to Ontario. However, local authorities might ask for an official ID.

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

    New York LaGuardia Airport and Ontario are both served by 1 main airport. You will leave New York LaGuardia Airport from New York LaGuardia and will be arriving at Ontario.

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

    We unfortunately don’t have that data for this specific route.

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

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

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

    The two airlines most popular with KAYAK users for flights from New York to Ontario are Delta and Southwest. With an average price for the route of $376 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $447 and an overall rating of 8.0.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from New York LaGuardia Airport 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 LaGuardia Airport 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 LaGuardia Airport with another airline. Booking your flights between New York LaGuardia Airport and ONT 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 New York LaGuardia Airport 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 LaGuardia Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from LaGuardia 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 LaGuardia 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.
8.0
SouthwestOverall score based on 4288 reviews
8.6Crew
8.0Comfort
7.1Food
7.6Entertainment
8.2Boarding
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

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

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

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

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

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

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

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

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Seats were really tight and the seat belts did not give enough slack.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

We were forced to wait nearly 50 additional minutes before leaving the terminal.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

The WiFi has been awful on my last few Delta Air Lines flights.

Deplaning was delayed because of Jetbridge equipment issues in MKE, causing an issue on an otherwise great flight.

Not really their fault, but a 4.5 hour delay is pretty brutal

we were delayed going into and out of Newark Airport by 3-4 hours each way. Excuses/reasons given were misleading. Weather was cited at first when there was NO weather issue. Turns out Newark had a shortage of staff and runway construction. United knew this and should have NOT scheduled flights when they know we would be delayed so long. I will avoid United and EWR airport at all cost going forward. Delta never looked so good.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

leg space better than expected. two washrooms for one plane isn't enough.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

Maybe add a seat trade app for flyers that didn’t get seats together

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

Flight was delayed from 35 minute delayed aircraft arrival to 90 minute delay causing us to miss international connecting flight on SWISS resulting in 16 hour delay to reach detonation causing significant angst, monetary loss and discomfort. SWISS transfer desk and staff was like robots not willing to help at all.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

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

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

Flight cancelled. Added a day and a half to my travel. American Airlines DID put me in a hotel for two nights, but have not given any money back for any of this! I spent money on an apartment at my destination that I basically wasted because I could not arrive.

I was pleasantly surprised with an upgrade at boarding. I finally had a mostly gluten free food options and a very attentive attendant.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

AA had a nationwide tech glitch today and after two connections snd hours of delay, I arrived 7 hours late to my destination

Horrendous. I do not recommend Frontier. The passengers lack manners and decency, and the flight attendants lack professionalism. If I wasn’t in a bind to fly with 48 hours notice for a job interview, I would not have selected a flight with Frontier and I never plan to fly with them in the future.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Everything went as planned. Crew was great. Seats were still not that comfortable.

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!

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

The flight left over two hours late. They charged me $180 to bring a carry on. There was an error with the spelling of my name and Frontair agent lied that I would need to pay $200 for her to fix the spelling, and pressured me that if I don't do it quick I would lose the flight. I called back and another agent said it costs $75 to fix. All in all, this company is a complete scam.

I took my first and last flight with FRONTIER. The seats are not able to be reclined so it’s not a very comfortable experience when you take a flight of 3 hours or longer. You must pay for your luggage either carry on or check in, so taking all this in consideration at the end what you think you’re saving your paying in services that should be included. Not a beverage in sight. . You’re seriously better off getting on a proper airline such as Delta, AA, United, etc.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

I was surprised that all baggage, including carry on, were charged. Each additional bag went up in cost. Really disappointed in the additional costs.

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

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