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LaGuardia

$134+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to New York LaGuardia are usually found in September or August, booked 45 days in advance, depart on a Tuesday or Friday and return on a Thursday

Cheap 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 junio 12, 2025.

Round-trip from

$224
(American Airlines)

One-way from

$134
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$567
From Ontario to New York LaGuardia
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One-way flight from Ontario to New York LaGuardia
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Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 junio 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/25:55 amONT - LGA
1 stop8h 30mSouthwest
lun. 10/66:25 amLGA - ONT
1 stop12h 10mSouthwest
Deal found 6/11$244
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/412:49 pmONT - LGA
1 stop7h 41mAmerican Airlines
jue. 7/106:06 pmLGA - ONT
1 stop7h 51mAmerican Airlines
Deal found 6/11$252
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/229:59 amONT - LGA
1 stop8h 00mFrontier
dom. 8/3110:50 pmLGA - ONT
1 stop12h 55mFrontier
Deal found 6/10$274
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/3010:05 pmONT - LGA
1 stop7h 09mDelta
vie. 7/45:00 pmLGA - ONT
1 stop8h 14mDelta
Deal found 6/10$277
This United Airlines deal was found by Cheapflights users on 6/10. 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.
sáb. 8/97:00 amONT - LGA
1 stop9h 20mUnited Airlines
jue. 8/142:00 pmLGA - ONT
1 stop10h 37mUnited Airlines
Deal found 6/10$382

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 junio 12, 2025.
Use the filters below to find and compare flights from Ontario to New York LaGuardia Airport that are best for you.

Fly from

Ontario

Fly to

LaGuardia

Route

Depart

Return

Price

OntarioNew York

ONT - LGA

ONTLGA

Ontario

vie. 8/8

11:59 pm-1:00 pm

1 stop10h 01m

New York LaGuardia

lun. 8/11

2:56 pm-9:12 pm

1 stop9h 16m

$224

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mar. 7/1

5:10 am-3:50 pm

1 stop7h 40m

New York LaGuardia

vie. 7/4

11:20 am-4:35 pm

1 stop8h 15m

$237

OntarioNew York

ONT - LGA

ONTLGA

Ontario

vie. 8/22

9:59 am-8:59 pm

1 stop8h 00m

New York LaGuardia

dom. 8/31

10:50 pm-8:45 am

1 stop12h 55m

$274

OntarioNew York

ONT - LGA

ONTLGA

Ontario

lun. 6/30

10:05 pm-8:14 am

1 stop7h 09m

New York LaGuardia

vie. 7/4

5:00 pm-10:14 pm

1 stop8h 14m

$277

OntarioNew York

ONT - LGA

ONTLGA

Ontario

sáb. 8/9

7:00 am-7:20 pm

1 stop9h 20m

New York LaGuardia

jue. 8/14

2:00 pm-9:37 pm

1 stop10h 37m

$382

OntarioNew York

ONT - LGA

ONTLGA

Ontario

jue. 7/10

11:59 pm-10:30 am

1 stop7h 31m

$134

OntarioNew York

ONT - LGA

ONTLGA

Ontario

vie. 7/4

11:49 am-10:25 pm

1 stop7h 36m

$139

OntarioNew York

ONT - LGA

ONTLGA

Ontario

vie. 7/4

5:05 am-9:54 pm

2 stops13h 49m

$174

OntarioNew York

ONT - LGA

ONTLGA

Ontario

lun. 8/4

12:59 am-10:09 pm

1 stop18h 10m

$176

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mié. 7/2

9:35 pm-9:20 am

2 stops8h 45m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 11 results
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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 June 9, 2025.

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 $199). Flying from Ontario to New York LaGuardia Airport in December is currently the most expensive (average of $268). 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.

What is the cheapest time of day to fly from ONT to LGA?

Find hourly flight availability from Ontario to LaGuardia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to New York LaGuardia Airport in the morning. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight at noon.

Rainfall in LaGuardia by month

Plan your trip to LaGuardia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in New York LaGuardia Airport ranges from 2.8 - 4.5 inches per month. July is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit New York LaGuardia Airport when rainfall is around 2.8 in.

Temperature in LaGuardia by month

Plan your trip to LaGuardia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to New York LaGuardia Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 junio 12, 2025.
To help decide which airline to fly from Ontario to New York, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 5 different airlines.

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

    According to our current data, American Airlines ($224), Southwest ($237), and Frontier ($274) offers the cheapest pricing from Ontario to New York LaGuardia Airport. American Airlines is 46% 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 American Airlines, with whom users have recently found tickets for as low as $134. However, be on the lookout for offers from Delta 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 $199). Flying from Ontario to New York LaGuardia Airport in December is currently the most expensive (average of $268). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Queens
Bronx
Elizabeth
Secaucus
East Rutherford
Ronkonkoma
Parsippany
Yonkers
Staten Island
Stamford
Mahwah
Carle Place
East Brunswick
New Brunswick
Westbury
Hoboken
Paterson
Mount Laurel
Fort Lee
Tannersville

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Top 5 airlines flying from Ontario to LaGuardia

Discover the top 5 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$217FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$232Average$414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$266Average$482FlexibilityNo cancel feeOn-time69%
DeltaCheapest$283Average$409FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$296Average$449FlexibilityNo cancel feeOn-time63%

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