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Cheap flights from Ontario to New York from $118

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 12/16. 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

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Southwest Logo
6:30 am - 4:10 pmONT-LGA
6h 40m1 stop
Southwest Logo
9:50 am - 5:35 pmLGA-ONT
10h 45m1 stop
$157Southwest
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Wed, Jan 7 - Sun, Jan 11
Southwest Logo
5:15 am - 4:25 pmONT-LGA
8h 10m1 stop
Southwest Logo
6:30 am - 5:10 pmLGA-ONT
13h 40m1 stop
$163Southwest
Find Deal
Fri, Jan 9 - Tue, Jan 13
Southwest Logo
6:50 am - 5:30 pmONT-LGA
7h 40m1 stop
Southwest Logo
11:15 am - 5:10 pmLGA-ONT
8h 55m1 stop
$164Southwest
Find Deal
Fri, Jan 9 - Mon, Jan 12
American Airlines Logo
11:59 pm - 11:25 amONT-LGA
8h 26m1 stop
American Airlines Logo
3:15 pm - 10:48 pmLGA-ONT
10h 33m1 stop
$168American Airlines
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Fri, Jan 30 - Tue, Feb 3
Southwest Logo
11:00 am - 9:30 pmONT-LGA
7h 30m1 stop
Southwest Logo
2:00 pm - 9:05 pmLGA-ONT
10h 05m2 stops
$169Southwest
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Thu, Jan 8 - Wed, Jan 14
Frontier Logo
8:31 am - 9:05 pmONT-LGA
9h 34m1 stop
Frontier Logo
10:00 pm - 1:39 pmLGA-ONT
18h 39m1 stop
$170Frontier
Find Deal
Fri, Jan 9 - Sun, Jan 11
Frontier Logo
7:00 am - 10:00 pmONT-LGA
12h 00m1 stop
Frontier Logo
10:55 pm - 5:54 pmLGA-ONT
45h 59m2 stops
$171Frontier
Find Deal
Wed, Jan 7 - Sun, Jan 11
American Airlines Logo
6:00 am - 5:59 pmONT-LGA
8h 59m1 stop
American Airlines Logo
9:00 am - 4:05 pmLGA-ONT
10h 05m2 stops
$173American Airlines
Find Deal
Fri, Jan 9 - Tue, Jan 13
Southwest Logo
8:55 am - 10:40 pmONT-LGA
10h 45m1 stop
Southwest Logo
9:50 am - 5:35 pmLGA-ONT
10h 45m1 stop
$174Southwest
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Tue, Jan 6 - Sun, Jan 11
Frontier Logo
7:00 am - 10:00 pmONT-LGA
12h 00m1 stop
Frontier Logo
10:00 pm - 1:39 pmLGA-ONT
18h 39m1 stop
$175Frontier
Find Deal
Wed, Jan 7 - Sun, Jan 11

Southwest flights from Ontario to New York LaGuardia Airport

Our best Southwest deals on Ontario to New York LaGuardia Airport flight tickets
Southwest
Jan 7
ONT6:30 amOntario
6h 40m
1 stop
LGA4:10 pmNew York LaGuardia
Jan 11
LGA9:50 amNew York LaGuardia
10h 45m
1 stop
ONT5:35 pmOntario
$157
Find similar
Southwest
Jan 23
ONT5:15 amOntario
8h 10m
1 stop
LGA4:25 pmNew York LaGuardia
Jan 26
LGA7:15 amNew York LaGuardia
10h 30m
1 stop
ONT2:45 pmOntario
$162
Find similar
Southwest
Jan 9
ONT5:15 amOntario
8h 10m
1 stop
LGA4:25 pmNew York LaGuardia
Jan 13
LGA6:30 amNew York LaGuardia
13h 40m
1 stop
ONT5:10 pmOntario
$163
Find similar

Frontier flights from Ontario to New York LaGuardia Airport

Our best Frontier deals on Ontario to New York LaGuardia Airport flight tickets
Frontier
Jan 9
ONT8:31 amOntario
9h 34m
1 stop
LGA9:05 pmNew York LaGuardia
Jan 11
LGA10:00 pmNew York LaGuardia
18h 39m
1 stop
ONT1:39 pmOntario
$170
Find similar
Frontier
Jan 7
ONT7:00 amOntario
12h 00m
1 stop
LGA10:00 pmNew York LaGuardia
Jan 11
LGA10:55 pmNew York LaGuardia
45h 59m
2 stops
ONT5:54 pmOntario
$171
Find similar
Frontier
Jan 7
ONT7:00 amOntario
12h 00m
1 stop
LGA10:00 pmNew York LaGuardia
Jan 11
LGA10:00 pmNew York LaGuardia
18h 39m
1 stop
ONT1:39 pmOntario
$175
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 December 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

Fly to

Route

Depart

Return

Price

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 1/7

6:30 am-4:10 pm

1 stop6h 40m

New York LaGuardia

Sun 1/11

9:50 am-5:35 pm

1 stop10h 45m

$157

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 1/9

5:15 am-4:25 pm

1 stop8h 10m

New York LaGuardia

Tue 1/13

6:30 am-5:10 pm

1 stop13h 40m

$163

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 1/9

6:50 am-5:30 pm

1 stop7h 40m

New York LaGuardia

Mon 1/12

11:15 am-5:10 pm

1 stop8h 55m

$164

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 1/30

11:59 pm-11:25 am

1 stop8h 26m

New York LaGuardia

Tue 2/3

3:15 pm-10:48 pm

1 stop10h 33m

$168

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 1/8

11:00 am-9:30 pm

1 stop7h 30m

New York LaGuardia

Wed 1/14

2:00 pm-9:05 pm

2 stops10h 05m

$169

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 1/9

8:31 am-9:05 pm

1 stop9h 34m

New York LaGuardia

Sun 1/11

10:00 pm-1:39 pm

1 stop18h 39m

$170

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 1/7

7:00 am-10:00 pm

1 stop12h 00m

New York LaGuardia

Sun 1/11

10:55 pm-5:54 pm

2 stops45h 59m

$171

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 1/9

6:00 am-5:59 pm

1 stop8h 59m

New York LaGuardia

Tue 1/13

9:00 am-4:05 pm

2 stops10h 05m

$173

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 1/6

8:55 am-10:40 pm

1 stop10h 45m

New York LaGuardia

Sun 1/11

9:50 am-5:35 pm

1 stop10h 45m

$174

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 1/7

7:00 am-10:00 pm

1 stop12h 00m

New York LaGuardia

Sun 1/11

10:00 pm-1:39 pm

1 stop18h 39m

$175

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 October to fly from Ontario, when ticket prices are also cheap, with an average price of $316.

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 $406 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 $307 on momondo.

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

As of December 2025, prices for Ontario to New York LaGuardia Airport flights are approximately 34% more expensive 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

Fastest flight time

6h 50m

Direct flights

None
The fastest flight from Ontario to New York LaGuardia Airport takes 6h 50m
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 40m 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
3,094 reviews
Search Frontier flights
American AirlinesPriceFrom $240Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
DeltaPriceFrom $262Free CancellationRating
7.9
8,011 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
East Rutherford
Point Pleasant Beach
Beach Haven
Spring Lake
Long Branch
Tannersville
Wayne
Stamford
Secaucus
East Stroudsburg
Elizabeth
Ocean Grove
Parsippany
Staten Island
Pocono Manor

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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