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LaGuardia

$99+ Cheap flights from Ontario (ONT) to LaGuardia, NY (LGA)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
Mar 31 — Apr 71
Tue 3/31
Tue 4/7
1 adult, Economy
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Cheap flight deals from Ontario to LaGuardia

Cheapest flights from Ontario to LaGuardia
Explore the most affordable flight options available from Ontario to LaGuardia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:59 am
ONT
-
LGA
2 stops19h 16m
Frontier
Tue 5/1210:55 pm
LGA
-
ONT
1 stop24h 44m
Frontier
Deal found 2/26$229
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
-
LGA
2 stops18h 01m
Frontier
Mon 4/2710:59 pm
LGA
-
ONT
1 stop24h 23m
Frontier
Deal found 2/26$232
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:18 pm
ONT
-
LGA
1 stop24h 41m
Frontier
Wed 4/156:20 am
LGA
-
ONT
2 stops20h 35m
Frontier
Deal found 2/26$233
This Booking.com deal was found by Cheapflights users on 2/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:20 am
ONT
-
LGA
1 stop11h 39m
Frontier
Thu 4/910:00 pm
LGA
-
ONT
1 stop28h 56m
Frontier
Deal found 2/26$234
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:26 am
ONT
-
LGA
1 stop11h 40m
Multiple Airlines
Fri 5/810:00 pm
LGA
-
ONT
2 stops28h 55m
Multiple Airlines
Deal found 2/25$236
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:59 pm
ONT
-
LGA
2 stops12h 05m
Multiple Airlines
Tue 4/2110:59 pm
LGA
-
ONT
1 stop24h 40m
Multiple Airlines
Deal found 2/25$237
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
ONT
-
LGA
1 stop8h 49m
Multiple Airlines
Tue 4/286:20 am
LGA
-
ONT
2 stops20h 35m
Multiple Airlines
Deal found 2/26$239
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:59 am
ONT
-
LGA
2 stops19h 16m
Multiple Airlines
Wed 5/135:45 am
LGA
-
ONT
1 stop17h 54m
Multiple Airlines
Deal found 2/27$241
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:59 am
ONT
-
LGA
2 stops19h 15m
Frontier
Mon 4/2010:59 pm
LGA
-
ONT
1 stop24h 40m
Frontier
Deal found 2/25$245
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:59 am
ONT
-
LGA
2 stops18h 01m
Multiple Airlines
Sat 4/255:45 am
LGA
-
ONT
1 stop19h 52m
Multiple Airlines
Deal found 3/1$246
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:15 am
ONT
-
LGA
1 stop10h 45m
Frontier
Sat 5/96:00 am
LGA
-
ONT
2 stops20h 55m
Frontier
Deal found 2/25$250
This United Airlines deal was found by Cheapflights users on 2/26. 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.
Wed 4/85:10 am
ONT
-
LGA
1 stop7h 40m
United Airlines
Wed 4/152:20 pm
LGA
-
ONT
1 stop10h 30m
United Airlines
Deal found 2/26$252

Find flight deals from Ontario to LaGuardia

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to LaGuardia (LGA). 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 March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$229
(Kiwi.com)

One-way from

$99
(Super.com)

Popular in

June

Cheapest in

January

Average price

$415
Provider with most accurate pricing for Ontario-New York LaGuardia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-New York LaGuardia flights.
Search Deals
From Ontario to New York LaGuardia
Search Deals
One-way flight from Ontario to New York LaGuardia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to LaGuardia 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 March 1, 2026.
Use the filters below to find and compare flights from Ontario to New York LaGuardia Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 5/15

10:00 pm-9:45 am

1 stop8h 45m

New York LaGuardia

Tue 5/19

1:55 pm-11:34 pm

2 stops12h 39m

$335

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 4/16

7:00 am-6:18 pm

1 stop8h 18m

New York LaGuardia

Tue 4/21

4:29 pm-10:26 pm

1 stop8h 57m

$357

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 5/5

5:00 am-3:47 pm

1 stop7h 47m

New York LaGuardia

Sat 5/9

7:20 am-5:52 pm

2 stops13h 32m

$358

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 4/18

10:15 pm-9:39 am

1 stop8h 24m

New York LaGuardia

Fri 4/24

6:00 am-11:36 am

1 stop8h 36m

$371

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 3/11

1:50 pm-11:25 pm

1 stop6h 35m

New York LaGuardia

Wed 3/18

4:25 pm-10:18 pm

1 stop8h 53m

$372

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 5/27

10:00 pm-12:14 pm

2 stops11h 14m

New York LaGuardia

Wed 6/3

4:30 pm-11:34 pm

2 stops10h 04m

$379

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 3/18

11:59 pm-11:09 am

1 stop8h 10m

New York LaGuardia

Wed 3/25

8:05 am-5:41 pm

2 stops12h 36m

$382

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 3/19

8:25 am-11:25 pm

1 stop12h 00m

New York LaGuardia

Mon 3/23

4:55 pm-12:10 am

2 stops10h 15m

$383

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 4/1

5:10 am-5:23 pm

1 stop9h 13m

New York LaGuardia

Wed 4/8

5:15 pm-10:31 pm

1 stop8h 16m

$397

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 4/17

7:00 am-5:13 pm

1 stop7h 13m

New York LaGuardia

Mon 4/20

5:10 pm-10:26 pm

1 stop8h 16m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Ontario to LaGuardia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to LaGuardia in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-New York LaGuardia Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-New York LaGuardia Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-New York LaGuardia Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-New York LaGuardia Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-New York LaGuardia Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to LaGuardia

Have a flexible travel schedule? Discover the best time to fly to LaGuardia from Ontario 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 Ontario to New York LaGuardia Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to LaGuardia. Price data was last updated on February 27, 2026.

To ensure you get the cheapest price possible for a flight from Ontario to New York LaGuardia Airport, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to New York LaGuardia Airport (average of $104). Flying from Ontario to New York LaGuardia Airport in July is currently the most expensive (average of $262). 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.

Reviews of airlines servicing LaGuardia

Get insights into the airlines that provide service to LaGuardia. 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 LaGuardia. Reviews last updated March 1, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Ontario to New York LaGuardia Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,303 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,303 reviews
Southwest
8.0
Very good
4,303 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,244 reviews
Southwest
8.0
Very good
4,303 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,370 reviews
Southwest
8.0
Very good
4,303 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,370 reviews
Southwest
8.0
Very good
4,303 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Ontario to LaGuardia. 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 from for flights from Ontario to New York LaGuardia?

    If you book a flight to New York LaGuardia from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to New York LaGuardia per day from 4 different airlines.

  • How long is the flight from Ontario to New York LaGuardia Airport?

    A quick flight from Ontario to New York LaGuardia Airport can take about 19h 16m. Frontier provides one of the quickest options available for as low as $229. Ontario and New York LaGuardia Airport are separated by a distance of 2417 mi.

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

    According to our current data, Southwest ($192), American Airlines ($193), and United Airlines ($197) offers the cheapest pricing from Ontario to New York LaGuardia Airport. Southwest is 49% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $96. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Ontario to New York LaGuardia Airport for a low price.

  • Can I find deals for flights from Ontario to LaGuardia that include hotel bookings?

    Yes. In addition to deals on Ontario to LaGuardia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to LaGuardia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to LaGuardia.

  • Can I find deals for business class flights from Ontario to LaGuardia?

    Yes. Cheapflights offers flight deals from Ontario to LaGuardia 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 Ontario to New York LaGuardia Airport?

    Currently, January is the cheapest month in which you can book a flight from Ontario to New York LaGuardia Airport (average of $104). Flying from Ontario to New York LaGuardia Airport in July is currently the most expensive (average of $262). 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

Traveling to a place near New York LaGuardia Airport?

Book flights to New York LaGuardia Airport if you plan to visit one of these locations
Queens
Mahwah
Bronx
East Rutherford
Yonkers
Secaucus
Elizabeth
Mount Laurel
North Bergen
Edgewater
Irvington
Seaside Heights
Carle Place
Absecon
Parsippany
Tannersville
Staten Island
Carteret
Stamford
New Brunswick

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Alternative routes for Ontario to LaGuardia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ontario to LaGuardia

Discover the top 4 airlines that operate flights from Ontario to LaGuardia. 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 March 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$192Average$364FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$193Average$339FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$197Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$257Average$390FlexibilityNo cancel feeOn-timeN/A

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