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LaGuardia

$119+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to New York LaGuardia are usually found in January or September, booked 52 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 septiembre 15, 2025.

Round-trip from

$225
(Gotogate)

One-way from

$119
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$336
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. 5% potential increase in price ($22 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 September 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 septiembre 15, 2025.

This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/218:59 pmONT - LGA
1 stop22h 12mFrontier
mié. 9/2410:56 pmLGA - ONT
1 stop23h 58mFrontier
Deal found 9/14$225
This CheapOair deal was found by Cheapflights users on 9/13. 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.
dom. 9/218:59 pmONT - LGA
1 stop22h 12mFrontier
jue. 9/2510:56 pmLGA - ONT
1 stop11h 57mFrontier
Deal found 9/13$226
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/104:05 pmONT - LGA
2 stops16h 24mFrontier
jue. 11/1312:30 pmLGA - ONT
2 stops14h 20mFrontier
Deal found 9/13$227
This Booking.com deal was found by Cheapflights users on 9/15. 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.
mar. 9/238:59 pmONT - LGA
1 stop22h 12mFrontier
jue. 9/2510:56 pmLGA - ONT
1 stop23h 58mFrontier
Deal found 9/15$228
This Booking.com deal was found by Cheapflights users on 9/14. 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.
jue. 9/258:59 pmONT - LGA
1 stop22h 12mFrontier
lun. 9/2910:56 pmLGA - ONT
1 stop23h 58mFrontier
Deal found 9/14$229
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/67:39 amONT - LGA
2 stops12h 48mFrontier
sáb. 11/151:20 pmLGA - ONT
2 stops20h 07mFrontier
Deal found 9/15$230
This CheapOair deal was found by Cheapflights users on 9/15. 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.
vie. 9/198:59 pmONT - LGA
1 stop22h 12mFrontier
vie. 10/310:56 pmLGA - ONT
1 stop23h 58mFrontier
Deal found 9/15$231
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/58:59 pmONT - LGA
2 stops21h 00mFrontier
vie. 10/1710:00 pmLGA - ONT
1 stop12h 49mFrontier
Deal found 9/14$233
This CheapOair deal was found by Cheapflights users on 9/13. 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.
mar. 10/77:04 amONT - LGA
1 stop11h 56mFrontier
mié. 10/1510:00 pmLGA - ONT
1 stop20h 32mFrontier
Deal found 9/13$234
This CheapOair deal was found by Cheapflights users on 9/15. 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.
dom. 10/57:15 pmONT - LGA
1 stop22h 44mFrontier
vie. 10/1010:00 pmLGA - ONT
1 stop12h 49mFrontier
Deal found 9/15$235
This CheapOair deal was found by Cheapflights users on 9/14. 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.
jue. 10/164:17 pmONT - LGA
1 stop25h 42mFrontier
dom. 10/1910:55 pmLGA - ONT
1 stop13h 40mFrontier
Deal found 9/14$236
This CheapOair deal was found by Cheapflights users on 9/14. 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.
mar. 10/147:04 amONT - LGA
1 stop11h 56mFrontier
mar. 10/2110:55 pmLGA - ONT
1 stop27h 55mFrontier
Deal found 9/14$237

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 septiembre 15, 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

jue. 9/25

8:59 pm-10:11 pm

1 stop22h 12m

New York LaGuardia

dom. 9/28

10:56 pm-7:53 am

1 stop11h 57m

$244

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mar. 9/23

8:59 pm-10:11 pm

1 stop22h 12m

New York LaGuardia

jue. 9/25

10:56 pm-7:53 am

1 stop11h 57m

$246

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mié. 10/1

12:20 pm-11:25 pm

1 stop8h 05m

New York LaGuardia

mar. 10/14

6:05 am-1:30 pm

1 stop10h 25m

$257

OntarioNew York

ONT - LGA

ONTLGA

Ontario

vie. 9/19

8:59 pm-10:11 pm

1 stop22h 12m

New York LaGuardia

lun. 9/22

10:56 pm-7:54 pm

1 stop23h 58m

$261

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mié. 9/24

11:55 am-10:15 pm

1 stop7h 20m

New York LaGuardia

jue. 9/25

3:40 pm-10:30 pm

1 stop9h 50m

$267

OntarioNew York

ONT - LGA

ONTLGA

Ontario

lun. 9/29

10:00 pm-8:11 am

1 stop7h 11m

New York LaGuardia

sáb. 10/4

6:00 am-10:42 am

1 stop7h 42m

$277

OntarioNew York

ONT - LGA

ONTLGA

Ontario

lun. 9/29

10:00 pm-8:11 am

1 stop7h 11m

New York LaGuardia

mié. 10/1

1:59 pm-7:15 pm

1 stop8h 16m

$282

OntarioNew York

ONT - LGA

ONTLGA

Ontario

lun. 9/29

10:00 pm-8:11 am

1 stop7h 11m

New York LaGuardia

jue. 10/2

6:00 am-10:42 am

1 stop7h 42m

$282

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mar. 9/30

10:00 pm-8:11 am

1 stop7h 11m

New York LaGuardia

sáb. 10/4

6:00 am-10:42 am

1 stop7h 42m

$282

OntarioNew York

ONT - LGA

ONTLGA

Ontario

mar. 10/28

5:50 pm-8:49 am

2 stops11h 59m

New York LaGuardia

sáb. 11/1

11:15 am-10:41 pm

2 stops14h 26m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 24 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 September 12, 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 52 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 septiembre 15, 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 septiembre 15, 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
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • 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 8h 05m. Frontier provides one of the quickest options available for as low as $257. Ontario and New York LaGuardia Airport are separated by a distance of 2417 mi. This flight may include one or multiple stops.

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

    According to our current data, Frontier ($128), American Airlines ($241), and United Airlines ($246) offers the cheapest pricing from Ontario to New York LaGuardia Airport. Frontier is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 New York LaGuardia Airport?

Book flights to New York LaGuardia Airport if you plan to visit one of these locations
Queens
Bronx
Elizabeth
Mahwah
Secaucus
Yonkers
Ronkonkoma
East Rutherford
North Bergen
Stamford
Staten Island
New Brunswick
Absecon
Carle Place
East Brunswick
Westbury
Avenel
Paterson
Fort Lee
Seaside Heights

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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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$180FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$241Average$424FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$277Average$412FlexibilityNo cancel feeOn-time63%
DeltaCheapest$296Average$397FlexibilityNo cancel feeOn-timeN/A

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