HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
LaGuardia

$127+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
Jun 13 — Jun 201
Fri 6/13
Fri 6/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to LaGuardia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to New York LaGuardia are usually found in September or October, 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 June 8, 2025.

Round-trip from

$225
(Southwest)

One-way from

$127
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$565
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. 7% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 8, 2025.

This Southwest deal was found by Cheapflights users on 6/6. 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.
Wed 9/312:20 pmONT - LGA
1 stop8h 05mSouthwest
Sat 9/61:50 pmLGA - ONT
2 stops9h 50mSouthwest
Deal found 6/6$225
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Fri 10/318:44 amONT - LGA
1 stop7h 15mAmerican Airlines
Tue 11/45:00 pmLGA - ONT
1 stop9h 45mAmerican Airlines
Deal found 6/5$245
This CheapOair deal was found by Cheapflights users on 6/7. 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
Sat 9/610:45 pmLGA - ONT
1 stop28h 05mFrontier
Deal found 6/7$249
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/1410:05 pmONT - LGA
1 stop8h 41mDelta
Tue 7/223:00 pmLGA - ONT
1 stop10h 27mDelta
Deal found 6/7$277
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Fri 7/47:00 amONT - LGA
1 stop7h 27mUnited Airlines
Tue 7/83:25 pmLGA - ONT
1 stop9h 46mUnited Airlines
Deal found 6/5$311

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 June 8, 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

Wed 9/3

12:20 pm-11:25 pm

1 stop8h 05m

New York LaGuardia

Sat 9/6

1:50 pm-8:40 pm

2 stops9h 50m

$225

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 10/31

8:44 am-6:59 pm

1 stop7h 15m

New York LaGuardia

Tue 11/4

5:00 pm-11:45 pm

1 stop9h 45m

$245

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 9/2

12:59 am-10:05 pm

1 stop18h 06m

New York LaGuardia

Sat 9/6

10:45 pm-11:50 pm

1 stop28h 05m

$249

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 7/14

10:05 pm-9:46 am

1 stop8h 41m

New York LaGuardia

Tue 7/22

3:00 pm-10:27 pm

1 stop10h 27m

$277

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 7/4

7:00 am-5:27 pm

1 stop7h 27m

New York LaGuardia

Tue 7/8

3:25 pm-10:11 pm

1 stop9h 46m

$311

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 8/26

6:10 am-5:53 pm

1 stop8h 43m

$127

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 8/29

12:59 am-10:00 pm

1 stop18h 01m

$129

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 7/1

10:05 pm-8:14 am

1 stop7h 09m

$139

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 6/30

7:00 am-8:20 pm

1 stop10h 20m

$169

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 6/24

1:00 pm-11:20 pm

1 stop7h 20m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Showing 1-10 of 11 results
1
2

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 May 23, 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 June 8, 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 June 8, 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

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.9

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

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.9

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
4,288 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.9

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
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.9

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
8,782 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.9

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

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.9

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, Southwest ($225), American Airlines ($245), and Frontier ($249) offers the cheapest pricing from Ontario to New York LaGuardia Airport. Southwest is 47% 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 $127. However, be on the lookout for offers from Frontier and Delta, 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
Carle Place
Mahwah
East Brunswick
Westbury
Hoboken
Paterson
Mount Laurel
Fort Lee
Tannersville
Princeton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to LaGuardia

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Newark flights
San Francisco to Newark flights
Los Angeles to LaGuardia flights
Ontario to John F Kennedy Intl flights
San Francisco to LaGuardia flights
Burbank to Newark flights
San Diego to John F Kennedy Intl flights
Santa Ana to Newark flights
Ontario to Newark flights
San Diego to Newark flights
Burbank to LaGuardia flights
Santa Ana to LaGuardia flights
Oakland to Newark flights
Santa Ana to John F Kennedy Intl flights
San Jose to Newark flights
Oakland to LaGuardia flights
San Diego to LaGuardia flights
Las Vegas to John F Kennedy Intl flights
San Jose to John F Kennedy Intl flights
Burbank to John F Kennedy Intl flights
Las Vegas to Newark flights
Sacramento to Newark flights
San Jose to LaGuardia flights
Sacramento to John F Kennedy Intl flights
Las Vegas to LaGuardia flights
Oakland to John F Kennedy Intl flights
Sacramento to LaGuardia flights
Palm Springs to John F Kennedy Intl flights
Long Beach to John F Kennedy Intl flights
Fresno to John F Kennedy Intl flights
Palm Springs to Newark flights
Santa Barbara to John F Kennedy Intl flights
Fresno to LaGuardia flights
Fresno to Newark flights
Palm Springs to LaGuardia flights
San Francisco to Stewart flights
Santa Barbara to LaGuardia flights
Santa Barbara to Newark flights
Reno to Newark flights
Reno to John F Kennedy Intl flights
Los Angeles to Stewart flights
Medford to John F Kennedy Intl flights
Long Beach to Newark flights
Reno to LaGuardia flights
Long Beach to LaGuardia flights
Medford to Newark flights
Medford to LaGuardia flights

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 June 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$232Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$266Average$482FlexibilityNo cancel feeOn-time69%
DeltaCheapest$283Average$408FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$296Average$449FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Privacy Preferences©2025 Cheapflights