LGA - ONT

$137 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 5/15. 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

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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Everything you should know

Cheapest round-trip
$262
Typical prices: $455-$388
Multiple Airlines
Thu 4/23Fri 5/1
LGA - ONT • 2 stops
Cheapest one-way
$137
Typical prices: $207-$287
Multiple Airlines
Fri 5/15
LGA - ONT • 2 stops
Top airlines
Cheapest • from $271 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between LaGuardia and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $255 (round-trip)
Shortest trip • 8h 10m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 42% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

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

Thu, Apr 23 - Fri, May 1
Multiple Airlines Logo
8:00 am - 4:38 pm
LGA
-
ONT
11h 38m
2 stops
Multiple Airlines Logo
8:26 am - 11:26 pm
ONT
-
LGA
12h 00m
1 stop
$262Multiple Airlines
Fri, Apr 24 - Tue, May 12
Multiple Airlines Logo
6:02 am - 11:55 pm
LGA
-
ONT
20h 53m
2 stops
Multiple Airlines Logo
8:06 pm - 10:00 pm
ONT
-
LGA
22h 54m
1 stop
$265Multiple Airlines
Tue, May 26 - Wed, Jun 3
Multiple Airlines Logo
4:59 pm - 7:35 am
LGA
-
ONT
17h 36m
2 stops
Multiple Airlines Logo
8:06 pm - 10:00 pm
ONT
-
LGA
22h 54m
1 stop
$266Multiple Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
11:59 am - 7:35 am
LGA
-
ONT
22h 36m
1 stop
Multiple Airlines Logo
8:06 pm - 4:11 pm
ONT
-
LGA
17h 05m
2 stops
$268Multiple Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
4:59 pm - 7:08 am
LGA
-
ONT
17h 09m
2 stops
Multiple Airlines Logo
8:06 pm - 10:00 pm
ONT
-
LGA
22h 54m
1 stop
$270Multiple Airlines
Fri, May 1 - Wed, May 6
Southwest Logo
6:00 am - 1:15 pm
LGA
-
ONT
10h 15m
1 stop
Southwest Logo
10:30 am - 10:45 pm
ONT
-
LGA
9h 15m
2 stops
$271Southwest
Sat, May 16 - Sat, May 23
Multiple Airlines Logo
11:59 am - 7:35 am
LGA
-
ONT
22h 36m
1 stop
Multiple Airlines Logo
5:59 pm - 2:00 pm
ONT
-
LGA
17h 01m
2 stops
$272Multiple Airlines
Sat, May 16 - Mon, May 18
Multiple Airlines Logo
11:59 am - 7:35 am
LGA
-
ONT
22h 36m
1 stop
Multiple Airlines Logo
8:06 pm - 2:00 pm
ONT
-
LGA
14h 54m
2 stops
$273Multiple Airlines
Fri, May 1 - Wed, May 6
United Airlines Logo
3:47 pm - 9:58 pm
LGA
-
ONT
9h 11m
1 stop
United Airlines Logo
7:00 am - 5:13 pm
ONT
-
LGA
7h 13m
1 stop
$276United Airlines
Wed, May 6 - Mon, May 11
Delta Logo
1:00 pm - 6:33 pm
LGA
-
ONT
8h 33m
1 stop
Delta Logo
10:00 pm - 8:14 am
ONT
-
LGA
7h 14m
1 stop
$277Delta
Booking Insights

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.

How much is a round-trip flight from New York LaGuardia Airport 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 LaGuardia Airport to Ontario departing in April.

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 October, where tickets cost $236 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $652 and $560 respectively.

Good to know

Low seasonSeptember
Cheapest flight$137
Best time to beat the crowds but there is an average 37% increase in price.
Most popular time to fly and prices are also 3% lower on average.
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 $137 for a one-way ticket and $262 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?

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

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

    The two airlines most popular with KAYAK users for flights from New York to Ontario are Southwest and Delta. With an average price for the route of $488 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 $444 and an overall rating of 7.9.

  • 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.

Reviews of the 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 4338 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
Airline reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

4.0 Okaysangeetha, Apr 2026
AUS - SJC
Read more Southwest reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

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

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

I am still at the Airport! Delayed Delayed and Delyaed

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Delayed. Hot. Passenger next to me was so large I couldn’t move.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

I had a good time. However, I paid for the wifi and it was in and out the whole flight.

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

Much better than Spirit. I was please by the easy fast check in and boarding

Everything except the food and entertainment. It was a great experience though

The attendant on board was amazing. She should be doing business/first international long haul.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

For an international flight the seats were smaller than most flight I have been on in economy. I don’t know the size of the seats or perhaps it was the size of the seat dividers that made the seats feel smaller and little amount of space to even turn your body if you needed to

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Not really sure I enjoyed the flight at all. The flight attendants seemed a little tired and rude at times. The snacks were lacking in taste and sustenance. The flight was incredibly turbulent for three plus hours and the pilot had to do a second pass to land at our final destination because he was coming in so fast. He must have taken a short cut and because of it we had to suffer the violent turbulence and the dropping down. It had to be one of if not the worse flights I have ever been on and have traveled vastly all over the world.

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

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

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

Everything you need to know for your flight from LaGuardia to Ontario

Information on your arrival and departure airports