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Cheap flights from Ontario to New York from $144

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 5/26. 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

Enter your travel dates to find the best prices.
Delta Logo
9:50 am - 9:58 pm
ONT
-
LGA
9h 08m
2 stops
Delta Logo
4:00 pm - 9:48 pm
LGA
-
ONT
8h 48m
1 stop
$282Delta
Thu, May 28 - Tue, Jun 2
Delta Logo
6:00 am - 5:15 pm
ONT
-
LGA
8h 15m
2 stops
Delta Logo
4:00 pm - 9:48 pm
LGA
-
ONT
8h 48m
1 stop
$283Delta
Sun, May 24 - Tue, Jun 2
Delta Logo
6:00 am - 10:27 pm
ONT
-
LGA
13h 27m
2 stops
Delta Logo
2:29 pm - 11:34 pm
LGA
-
ONT
12h 05m
2 stops
$287Delta
Fri, Aug 21 - Wed, Aug 26
Delta Logo
6:00 am - 5:15 pm
ONT
-
LGA
8h 15m
2 stops
Delta Logo
2:59 pm - 11:34 pm
LGA
-
ONT
11h 35m
2 stops
$288Delta
Wed, May 27 - Wed, Jun 3
Frontier Logo
8:07 am - 10:00 pm
ONT
-
LGA
10h 53m
1 stop
Frontier Logo
10:55 pm - 7:12 am
LGA
-
ONT
11h 17m
1 stop
$290Frontier
Thu, Sep 17 - Wed, Sep 23
Frontier Logo
8:07 am - 10:00 pm
ONT
-
LGA
10h 53m
1 stop
Frontier Logo
10:55 pm - 7:12 am
LGA
-
ONT
11h 17m
1 stop
$291Frontier
Thu, Sep 10 - Wed, Sep 16
American Airlines Logo
5:44 am - 6:04 pm
ONT
-
LGA
9h 20m
1 stop
American Airlines Logo
5:01 pm - 10:38 pm
LGA
-
ONT
8h 37m
1 stop
$297American Airlines
Wed, May 27 - Wed, Jun 3
Southwest Logo
11:55 am - 10:20 pm
ONT
-
LGA
7h 25m
1 stop
Southwest Logo
6:00 am - 12:00 pm
LGA
-
ONT
9h 00m
1 stop
$298Southwest
Sat, Aug 15 - Sun, Aug 30
American Airlines Logo
11:59 pm - 12:00 pm
ONT
-
LGA
9h 01m
1 stop
American Airlines Logo
5:01 pm - 10:38 pm
LGA
-
ONT
8h 37m
1 stop
$299American Airlines
Sat, May 30 - Wed, Jun 3
American Airlines Logo
11:59 pm - 12:00 pm
ONT
-
LGA
9h 01m
1 stop
American Airlines Logo
6:46 pm - 11:59 pm
LGA
-
ONT
8h 13m
1 stop
$302American Airlines
Tue, May 26 - Tue, Jun 2

Southwest flights from Ontario to New York LaGuardia Airport

Our best Southwest deals on Ontario to New York LaGuardia Airport flight tickets
Southwest
Aug 15
ONT11:55 amOntario
7h 25m
1 stop
LGA10:20 pmNew York LaGuardia
Aug 30
LGA6:00 amNew York LaGuardia
9h 00m
1 stop
ONT12:00 pmOntario
$298
Southwest
Aug 6
ONT12:25 pmOntario
7h 30m
1 stop
LGA10:55 pmNew York LaGuardia
Aug 13
LGA9:40 amNew York LaGuardia
13h 40m
1 stop
ONT8:20 pmOntario
$303
Southwest
Jun 10
ONT11:55 pmOntario
8h 25m
1 stop
LGA11:20 amNew York LaGuardia
Jun 13
LGA12:35 pmNew York LaGuardia
12h 25m
2 stops
ONT10:00 pmOntario
$309

Delta flights from Ontario to New York LaGuardia Airport

Our best Delta deals on Ontario to New York LaGuardia Airport flight tickets
Delta
May 28
ONT9:50 amOntario
9h 08m
2 stops
LGA9:58 pmNew York LaGuardia
Jun 2
LGA4:00 pmNew York LaGuardia
8h 48m
1 stop
ONT9:48 pmOntario
$282
Delta
May 24
ONT6:00 amOntario
8h 15m
2 stops
LGA5:15 pmNew York LaGuardia
Jun 2
LGA4:00 pmNew York LaGuardia
8h 48m
1 stop
ONT9:48 pmOntario
$283
Delta
Aug 21
ONT6:00 amOntario
13h 27m
2 stops
LGA10:27 pmNew York LaGuardia
Aug 26
LGA2:29 pmNew York LaGuardia
12h 05m
2 stops
ONT11:34 pmOntario
$287

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 May 9, 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

Cheapest round-trip

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 5/28

9:50 am-9:58 pm

2 stops9h 08m

New York LaGuardia

Tue 6/2

4:00 pm-9:48 pm

1 stop8h 48m

$282

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sun 5/24

6:00 am-5:15 pm

2 stops8h 15m

New York LaGuardia

Tue 6/2

4:00 pm-9:48 pm

1 stop8h 48m

$283

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 8/21

6:00 am-10:27 pm

2 stops13h 27m

New York LaGuardia

Wed 8/26

2:29 pm-11:34 pm

2 stops12h 05m

$287

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 5/27

6:00 am-5:15 pm

2 stops8h 15m

New York LaGuardia

Wed 6/3

2:59 pm-11:34 pm

2 stops11h 35m

$288

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 9/17

8:07 am-10:00 pm

1 stop10h 53m

New York LaGuardia

Wed 9/23

10:55 pm-7:12 am

1 stop11h 17m

$290

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Thu 9/10

8:07 am-10:00 pm

1 stop10h 53m

New York LaGuardia

Wed 9/16

10:55 pm-7:12 am

1 stop11h 17m

$291

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 5/27

5:44 am-6:04 pm

1 stop9h 20m

New York LaGuardia

Wed 6/3

5:01 pm-10:38 pm

1 stop8h 37m

$297
Quickest round-trip

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 8/15

11:55 am-10:20 pm

1 stop7h 25m

New York LaGuardia

Sun 8/30

6:00 am-12:00 pm

1 stop9h 00m

$298

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 5/30

11:59 pm-12:00 pm

1 stop9h 01m

New York LaGuardia

Wed 6/3

5:01 pm-10:38 pm

1 stop8h 37m

$299

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 5/26

11:59 pm-12:00 pm

1 stop9h 01m

New York LaGuardia

Tue 6/2

6:46 pm-11:59 pm

1 stop8h 13m

$302

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 typical price of a round-trip flight between Ontario and New York LaGuardia Airport?

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 $279, 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 February to fly from Ontario, when ticket prices are also cheap, with an average price of $295.

How far in advance should I book a flight from Ontario 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 $376 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 $257 on momondo.

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

As of May 2026, prices for Ontario to New York LaGuardia Airport flights are approximately 23% 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 45m

Direct flights

None
The fastest flight from Ontario to New York LaGuardia Airport takes 6h 45m
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

Frequently asked questions about flying from Ontario to New York LaGuardia Airport

  • 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 45m 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
SouthwestPriceFrom $192Free CancellationRating
8.0
4,302 reviews
Search Southwest flights
American AirlinesPriceFrom $193Free CancellationRating
7.1
11,669 reviews
Search American Airlines flights
United AirlinesPriceFrom $197Free CancellationRating
7.4
9,692 reviews
Search United Airlines flights
DeltaPriceFrom $262Free CancellationRating
7.9
8,457 reviews
Search Delta flights

  • United Airlines Flights From Ontario to New York LaGuardia Airport

    Across 7 United Airlines flights from Ontario to New York LaGuardia Airport this week, the average price was $338, with the best United Airlines deals starting from $197 round-trip. 9,694 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
Long Branch
Beach Haven
Wayne
Stamford
Spring Lake
Woodbridge
Tannersville
Parsippany
East Stroudsburg
Mount Laurel
Secaucus
Ocean Grove
Elizabeth

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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