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LaGuardia

$120+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 Thursday 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 July 3, 2025.

Round-trip from

$230
(CheapOair)

One-way from

$120
(Gotogate)

Popular in

December

Cheapest in

September

Average price

$398
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 ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This CheapOair deal was found by Cheapflights users on 7/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:59 amONT - LGA
1 stop18h 06mFrontier
Wed 9/1010:00 pmLGA - ONT
1 stop16h 33mFrontier
Deal found 7/1$230
This Southwest deal was found by Cheapflights users on 7/2. 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.
Thu 7/176:25 amONT - LGA
1 stop7h 35mSouthwest
Tue 7/227:15 amLGA - ONT
1 stop8h 45mSouthwest
Deal found 7/2$237
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:00 amONT - LGA
1 stop10h 00mUnited Airlines
Tue 8/125:25 pmLGA - ONT
1 stop7h 46mUnited Airlines
Deal found 7/1$262
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Mon 8/412:59 amONT - LGA
1 stop9h 05mAmerican Airlines
Wed 8/68:30 amLGA - ONT
1 stop10h 36mAmerican Airlines
Deal found 7/3$267
This Delta deal was found by Cheapflights users on 7/3. 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.
Wed 8/207:05 amONT - LGA
1 stop7h 44mDelta
Sat 8/232:00 pmLGA - ONT
1 stop8h 11mDelta
Deal found 7/3$277

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 July 3, 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

Tue 9/2

12:59 am-10:05 pm

1 stop18h 06m

New York LaGuardia

Wed 9/10

10:00 pm-11:33 am

1 stop16h 33m

$230

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 7/17

6:25 am-5:00 pm

1 stop7h 35m

New York LaGuardia

Tue 7/22

7:15 am-1:00 pm

1 stop8h 45m

$237

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 8/6

6:00 am-7:00 pm

1 stop10h 00m

New York LaGuardia

Tue 8/12

5:25 pm-10:11 pm

1 stop7h 46m

$262

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 7/31

12:59 am-1:04 pm

1 stop9h 05m

New York LaGuardia

Tue 8/5

7:30 am-1:47 pm

1 stop9h 17m

$276

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 8/20

11:45 am-11:24 pm

1 stop8h 39m

New York LaGuardia

Mon 8/25

4:20 pm-10:40 pm

2 stops9h 20m

$282

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 7/14

12:59 am-10:09 pm

1 stop18h 10m

$120

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 8/6

6:00 am-7:00 pm

1 stop10h 00m

$129

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 8/19

10:50 am-8:59 pm

1 stop7h 09m

$134

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 8/13

7:05 am-5:49 pm

1 stop7h 44m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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 27, 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 July 3, 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.

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 July 3, 2025.
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
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Frontier
5.9
Fair
3,286 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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, Frontier ($230), Southwest ($237), and United Airlines ($262) offers the cheapest pricing from Ontario to New York LaGuardia Airport. Frontier is 44% 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 Frontier, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from Delta and American 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
Secaucus
Elizabeth
East Rutherford
Ronkonkoma
Yonkers
Parsippany
North Bergen
Staten Island
Stamford
Mahwah
Carle Place
New Brunswick
Westbury
Hoboken
East Brunswick
Paterson
Fort Lee
Princeton

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$198FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$229Average$410FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$266Average$477FlexibilityNo cancel feeOn-time69%
DeltaCheapest$283Average$408FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$296Average$445FlexibilityNo cancel feeOn-time63%

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