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Cheap flights from Ontario to New York from $97

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 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 10:00 pm
ONT
-
LGA
13h 00m
1 stop
Frontier Logo
10:55 pm - 11:59 pm
LGA
-
ONT
28h 04m
1 stop
$186Frontier
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
2:06 pm - 12:00 pm
ONT
-
LGA
18h 54m
2 stops
Multiple Airlines Logo
8:59 pm - 7:26 am
LGA
-
ONT
13h 27m
1 stop
$188Multiple Airlines
Tue, Feb 17 - Fri, Feb 20
Multiple Airlines Logo
8:21 am - 2:00 pm
ONT
-
LGA
26h 39m
1 stop
Multiple Airlines Logo
8:59 am - 11:59 pm
LGA
-
ONT
18h 00m
2 stops
$190Multiple Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
6:00 am - 4:07 pm
ONT
-
LGA
7h 07m
1 stop
American Airlines Logo
3:10 pm - 10:29 pm
LGA
-
ONT
10h 19m
1 stop
$193American Airlines
Wed, Feb 11 - Fri, Feb 20
Multiple Airlines Logo
8:21 am - 2:00 pm
ONT
-
LGA
26h 39m
1 stop
Multiple Airlines Logo
8:59 pm - 2:29 pm
LGA
-
ONT
20h 30m
1 stop
$194Multiple Airlines
Sat, Feb 14 - Wed, Feb 18
American Airlines Logo
7:16 am - 5:59 pm
ONT
-
LGA
7h 43m
1 stop
American Airlines Logo
5:07 pm - 10:49 pm
LGA
-
ONT
8h 42m
1 stop
$195American Airlines
Wed, Feb 11 - Tue, Feb 17
Frontier Logo
6:00 am - 10:00 pm
ONT
-
LGA
13h 00m
1 stop
Frontier Logo
10:55 pm - 11:59 pm
LGA
-
ONT
28h 04m
1 stop
$196Frontier
Thu, Apr 2 - Tue, Apr 7
Multiple Airlines Logo
2:08 pm - 3:49 pm
ONT
-
LGA
22h 41m
2 stops
Multiple Airlines Logo
8:59 pm - 7:26 am
LGA
-
ONT
13h 27m
1 stop
$197Multiple Airlines
Thu, Feb 19 - Fri, Feb 20
Southwest Logo
10:30 am - 10:45 pm
ONT
-
LGA
9h 15m
2 stops
Southwest Logo
6:05 am - 1:30 pm
LGA
-
ONT
10h 25m
1 stop
$198Southwest
Tue, Apr 7 - Tue, Apr 14
Southwest Logo
10:30 am - 10:45 pm
ONT
-
LGA
9h 15m
2 stops
Southwest Logo
3:05 pm - 10:10 pm
LGA
-
ONT
10h 05m
2 stops
$204Southwest
Tue, Apr 7 - Tue, Apr 14

American Airlines flights from Ontario to New York LaGuardia Airport

Our best American Airlines deals on Ontario to New York LaGuardia Airport flight tickets
American Airlines
Feb 11
ONT6:00 amOntario
7h 07m
1 stop
LGA4:07 pmNew York LaGuardia
Feb 20
LGA3:10 pmNew York LaGuardia
10h 19m
1 stop
ONT10:29 pmOntario
$193
American Airlines
Feb 11
ONT7:16 amOntario
7h 43m
1 stop
LGA5:59 pmNew York LaGuardia
Feb 17
LGA5:07 pmNew York LaGuardia
8h 42m
1 stop
ONT10:49 pmOntario
$195
American Airlines
Feb 17
ONT10:37 pmOntario
9h 26m
1 stop
LGA11:03 amNew York LaGuardia
Feb 24
LGA10:38 amNew York LaGuardia
11h 04m
1 stop
ONT6:42 pmOntario
$213

United Airlines flights from Ontario to New York LaGuardia Airport

Our best United Airlines deals on Ontario to New York LaGuardia Airport flight tickets
United Airlines
Feb 24
ONT1:45 pmOntario
6h 45m
1 stop
LGA11:30 pmNew York LaGuardia
Feb 28
LGA10:15 amNew York LaGuardia
13h 35m
2 stops
ONT8:50 pmOntario
$256
United Airlines
Jan 27
ONT5:05 amOntario
7h 41m
1 stop
LGA3:46 pmNew York LaGuardia
Jan 31
LGA3:29 pmNew York LaGuardia
8h 29m
1 stop
ONT8:58 pmOntario
$279
United Airlines
Jan 26
ONT5:05 amOntario
9h 22m
1 stop
LGA5:27 pmNew York LaGuardia
Jan 29
LGA3:41 pmNew York LaGuardia
9h 17m
1 stop
ONT9:58 pmOntario
$283

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 January 14, 2026.
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 4/1

6:00 am-10:00 pm

1 stop13h 00m

New York LaGuardia

Mon 4/6

10:55 pm-11:59 pm

1 stop28h 04m

$186

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 2/17

2:06 pm-12:00 pm

2 stops18h 54m

New York LaGuardia

Fri 2/20

8:59 pm-7:26 am

1 stop13h 27m

$188

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 2/14

8:21 am-2:00 pm

1 stop26h 39m

New York LaGuardia

Sat 2/21

8:59 am-11:59 pm

2 stops18h 00m

$190

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 2/11

6:00 am-4:07 pm

1 stop7h 07m

New York LaGuardia

Fri 2/20

3:10 pm-10:29 pm

1 stop10h 19m

$193

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 2/14

8:21 am-2:00 pm

1 stop26h 39m

New York LaGuardia

Wed 2/18

8:59 pm-2:29 pm

1 stop20h 30m

$194

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 2/11

7:16 am-5:59 pm

1 stop7h 43m

New York LaGuardia

Tue 2/17

5:07 pm-10:49 pm

1 stop8h 42m

$195

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 4/2

6:00 am-10:00 pm

1 stop13h 00m

New York LaGuardia

Tue 4/7

10:55 pm-11:59 pm

1 stop28h 04m

$196

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 2/19

2:08 pm-3:49 pm

2 stops22h 41m

New York LaGuardia

Fri 2/20

8:59 pm-7:26 am

1 stop13h 27m

$197

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 4/7

10:30 am-10:45 pm

2 stops9h 15m

New York LaGuardia

Tue 4/14

6:05 am-1:30 pm

1 stop10h 25m

$198

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 4/7

10:30 am-10:45 pm

2 stops9h 15m

New York LaGuardia

Tue 4/14

3:05 pm-10:10 pm

2 stops10h 05m

$204

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 $282, 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 November to fly from Ontario, when ticket prices are also cheap, with an average price of $296.

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 $385 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 $286 on momondo.

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

As of January 2026, prices for Ontario to New York LaGuardia Airport flights are approximately 24% 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

Fastest flight time

7h 00m

Direct flights

None
The fastest flight from Ontario to New York LaGuardia Airport takes 7h 00m
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.
Search flight deals

  • 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 7h 00m 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 $139Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
SouthwestPriceFrom $192Free CancellationRating
8.0
4,257 reviews
Search Southwest flights
American AirlinesPriceFrom $229Free CancellationRating
7.2
11,118 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights
DeltaPriceFrom $262Free CancellationRating
7.9
8,040 reviews
Search Delta flights

  • United Airlines Flights From Ontario to New York LaGuardia Airport

    Across 5 United Airlines flights from Ontario to New York LaGuardia Airport this week, the average price was $419, with the best United Airlines deals starting from $246 round-trip. 9,156 users have rated United Airlines on momondo, with an average score of 7.4/10.

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
East Rutherford
Asbury Park
Point Pleasant Beach
Beach Haven
Spring Lake
Long Branch
Tannersville
Wayne
Stamford
Secaucus
East Stroudsburg
Parsippany
Ocean Grove
Elizabeth
Mount Laurel
Staten Island

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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