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Cheap flights from Ontario to New York from $117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to New York departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to New York

Cheap round-trip flights

Frontier Logo
6:53 am - 11:27 pmONT-LGA
13h 34m2 stops
Frontier Logo
12:30 pm - 11:50 pmLGA-ONT
14h 20m2 stops
$227Frontier
Find Deal
Mon, Nov 10 - Thu, Nov 13
Frontier Logo
6:53 am - 11:27 pmONT-LGA
13h 34m2 stops
Frontier Logo
8:30 pm - 10:34 amLGA-ONT
17h 04m2 stops
$229Frontier
Find Deal
Tue, Nov 11 - Wed, Nov 12
Southwest Logo
11:15 am - 11:25 pmONT-LGA
9h 10m2 stops
Southwest Logo
6:05 am - 1:45 pmLGA-ONT
10h 40m1 stop
$234Southwest
Find Deal
Sat, Feb 14 - Sat, Feb 21
Southwest Logo
12:40 pm - 11:15 pmONT-LGA
7h 35m1 stop
Southwest Logo
6:15 am - 1:50 pmLGA-ONT
10h 35m2 stops
$242Southwest
Find Deal
Fri, Feb 13 - Wed, Feb 18
American Airlines Logo
11:59 pm - 12:00 pmONT-LGA
9h 01m1 stop
American Airlines Logo
6:24 am - 11:57 amLGA-ONT
8h 33m1 stop
$247American Airlines
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Sun, Sep 28 - Tue, Sep 30
United Airlines Logo
1:33 pm - 11:30 pmONT-LGA
6h 57m1 stop
United Airlines Logo
2:15 pm - 10:31 pmLGA-ONT
11h 16m1 stop
$249United Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1
United Airlines Logo
5:05 am - 3:54 pmONT-LGA
7h 49m1 stop
United Airlines Logo
7:00 am - 12:51 pmLGA-ONT
8h 51m1 stop
$252United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
American Airlines Logo
11:59 pm - 12:59 pmONT-LGA
10h 00m1 stop
American Airlines Logo
2:59 pm - 9:24 pmLGA-ONT
9h 25m1 stop
$267American Airlines
Find Deal
Sun, Sep 28 - Wed, Oct 1
Delta Logo
11:45 am - 9:42 pmONT-LGA
6h 57m1 stop
Delta Logo
3:00 pm - 9:14 pmLGA-ONT
9h 14m1 stop
$277Delta
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Tue, Dec 16 - Sat, Jan 24
Delta Logo
7:05 am - 5:43 pmONT-LGA
7h 38m1 stop
Delta Logo
9:00 am - 7:19 pmLGA-ONT
13h 19m2 stops
$282Delta
Find Deal
Tue, Oct 28 - Sat, Nov 1

Frontier flights from Ontario to New York LaGuardia Airport

Our best Frontier deals on Ontario to New York LaGuardia Airport flight tickets
Frontier
Nov 10
ONT6:53 amOntario
13h 34m
2 stops
LGA11:27 pmNew York LaGuardia
Nov 13
LGA12:30 pmNew York LaGuardia
14h 20m
2 stops
ONT11:50 pmOntario
$227
Find similar
Frontier
Nov 11
ONT6:53 amOntario
13h 34m
2 stops
LGA11:27 pmNew York LaGuardia
Nov 12
LGA8:30 pmNew York LaGuardia
17h 04m
2 stops
ONT10:34 amOntario
$229
Find similar
Frontier
Nov 6
ONT7:39 amOntario
12h 48m
2 stops
LGA11:27 pmNew York LaGuardia
Nov 15
LGA1:20 pmNew York LaGuardia
20h 07m
2 stops
ONT6:27 amOntario
$230
Find similar

Southwest flights from Ontario to New York LaGuardia Airport

Our best Southwest deals on Ontario to New York LaGuardia Airport flight tickets
Southwest
Feb 14
ONT11:15 amOntario
9h 10m
2 stops
LGA11:25 pmNew York LaGuardia
Feb 21
LGA6:05 amNew York LaGuardia
10h 40m
1 stop
ONT1:45 pmOntario
$234
Find similar
Southwest
Feb 13
ONT12:40 pmOntario
7h 35m
1 stop
LGA11:15 pmNew York LaGuardia
Feb 18
LGA6:15 amNew York LaGuardia
10h 35m
2 stops
ONT1:50 pmOntario
$242
Find similar
Southwest
Oct 20
ONT6:35 amOntario
11h 35m
1 stop
LGA9:10 pmNew York LaGuardia
Oct 29
LGA2:00 pmNew York LaGuardia
9h 40m
2 stops
ONT8:40 pmOntario
$263
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to New York LaGuardia Airport 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
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

Mon 11/10

6:53 am-11:27 pm

2 stops13h 34m

New York LaGuardia

Thu 11/13

12:30 pm-11:50 pm

2 stops14h 20m

$227

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 11/11

6:53 am-11:27 pm

2 stops13h 34m

New York LaGuardia

Wed 11/12

8:30 pm-10:34 am

2 stops17h 04m

$229

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 2/14

11:15 am-11:25 pm

2 stops9h 10m

New York LaGuardia

Sat 2/21

6:05 am-1:45 pm

1 stop10h 40m

$234

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 2/13

12:40 pm-11:15 pm

1 stop7h 35m

New York LaGuardia

Wed 2/18

6:15 am-1:50 pm

2 stops10h 35m

$242

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sun 9/28

11:59 pm-12:00 pm

1 stop9h 01m

New York LaGuardia

Tue 9/30

6:24 am-11:57 am

1 stop8h 33m

$247

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 10/29

1:33 pm-11:30 pm

1 stop6h 57m

New York LaGuardia

Sat 11/1

2:15 pm-10:31 pm

1 stop11h 16m

$249

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 10/4

5:05 am-3:54 pm

1 stop7h 49m

New York LaGuardia

Tue 10/7

7:00 am-12:51 pm

1 stop8h 51m

$252

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sun 9/28

11:59 pm-12:59 pm

1 stop10h 00m

New York LaGuardia

Wed 10/1

2:59 pm-9:24 pm

1 stop9h 25m

$267

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 12/16

11:45 am-9:42 pm

1 stop6h 57m

New York LaGuardia

Sat 1/24

3:00 pm-9:14 pm

1 stop9h 14m

$277

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 10/28

7:05 am-5:43 pm

1 stop7h 38m

New York LaGuardia

Sat 11/1

9:00 am-7:19 pm

2 stops13h 19m

$282

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

How to get the cheapest flight ticket from Ontario to New York LaGuardia Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to New York LaGuardia Airport?

The cheapest month to fly to New York LaGuardia Airport from Ontario is in January. Flight prices, which tend to average around $291, are often lower during this time because this is during the off-season. If you don’t want to visit New York LaGuardia Airport in January, then you should wait until September to fly from Ontario, when ticket prices are also cheap, with an average price of $336.

What is the cheapest day to depart on your flight to New York LaGuardia Airport?

The cheapest day to depart on your flight to New York LaGuardia Airport is on a Wednesday when prices can be found for as low as $344. This is often the case because there is less demand to fly during this day of the week. Flights from Ontario to New York LaGuardia Airport on a Sunday will generally be more expensive and average around $398. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to New York LaGuardia Airport?

Our data shows that the cheapest Ontario to New York LaGuardia Airport flights are usually those with departure times in the afternoon. Our users have found flights to New York LaGuardia Airport in the afternoon for as low as $306. Flights at noon are often more expensive with an average ticket price of $412.

How far in advance should I book a flight to New York LaGuardia Airport?

You are more likely to see cheaper flights to New York LaGuardia Airport from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to New York LaGuardia Airport for around $414 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New York LaGuardia Airport from Ontario for as low as $316 on momondo.

How have Ontario to New York LaGuardia Airport flight prices changed over time?

As of September 2025, prices for Ontario to New York LaGuardia Airport flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to New York LaGuardia Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to New York LaGuardia Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to New York LaGuardia Airport (ONT to LGA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to New York LaGuardia Airport

Direct flights

None
There are no direct flights from Ontario to New York LaGuardia Airport. There are no popular flight routes from Ontario to New York LaGuardia Airport.
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  • How far is Ontario to New York LaGuardia by plane?

    There are 2419.3 mi between Ontario and New York LaGuardia. Typically, this will take 6h 57m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to New York LaGuardia Airport?

    Prices for flights from Ontario Airport to New York LaGuardia Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to New York LaGuardia Airport?

  • How old do you have to be to fly from Ontario Airport to New York LaGuardia Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to New York LaGuardia Airport.

  • What documentation or ID do you need to fly to New York LaGuardia Airport?

    The necessary travel and health documents for your New York LaGuardia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ontario to New York LaGuardia Airport?

  • What is the most popular airline from Ontario to New York LaGuardia Airport?

Best airlines flying from Ontario to New York LaGuardia Airport

Compare and see reviews for airlines that fly from Ontario to New York LaGuardia Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $128Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
American AirlinesPriceFrom $241Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $296Free CancellationRating
7.9
7,961 reviews
Search Delta flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Seaside Heights
Queens
Bronx
Yonkers
Asbury Park
Pocono Manor
Point Pleasant Beach
East Rutherford
Beach Haven
Spring Lake
Stamford
Tannersville
Long Branch
Wayne
Elizabeth
East Stroudsburg
Parsippany
Secaucus
Staten Island
Ocean Grove

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to New York?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to New York. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to New York with flexible booking policies on momondo?

All flight searches from Ontario to New York on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to New York?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to New York.

I’m not ready to book a flight from Ontario to New York right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to New York now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to New York and let you know when they change.

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