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Cheap flights from New York LaGuardia Airport to Los Angeles from C$ 178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New York LaGuardia Airport to Los Angeles departing on 8/1. 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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Find the cheapest flights from New York LaGuardia Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:00 a.m. - 1:35 p.m.
LGA
-
ONT
10h 35m1 stop
Southwest Logo
7:20 a.m. - 5:15 p.m.
ONT
-
LGA
6h 55m1 stop
C$ 351Southwest
Fri, 13 Feb - Tue, 17 Feb
Southwest Logo
6:00 a.m. - 1:35 p.m.
LGA
-
ONT
10h 35m1 stop
Southwest Logo
5:15 a.m. - 4:25 p.m.
ONT
-
LGA
8h 10m1 stop
C$ 353Southwest
Fri, 13 Feb - Wed, 18 Feb
Delta Logo
4:00 p.m. - 9:05 p.m.
LGA
-
ONT
8h 05m1 stop
Delta Logo
10:30 p.m. - 8:48 a.m.
ONT
-
LGA
7h 18m1 stop
C$ 354Delta
Mon, 2 Feb - Sun, 8 Feb
Southwest Logo
6:00 a.m. - 1:35 p.m.
LGA
-
ONT
10h 35m1 stop
Southwest Logo
8:50 p.m. - 9:10 a.m.
ONT
-
LGA
9h 20m2 stops
C$ 358Southwest
Fri, 13 Feb - Tue, 17 Feb
Delta Logo
4:54 p.m. - 11:58 p.m.
LGA
-
ONT
10h 04m2 stops
Delta Logo
10:20 p.m. - 9:47 a.m.
ONT
-
LGA
8h 27m1 stop
C$ 361Delta
Mon, 9 Feb - Sat, 14 Feb
Delta Logo
1:05 p.m. - 11:58 p.m.
LGA
-
ONT
13h 53m2 stops
Delta Logo
10:20 p.m. - 11:59 a.m.
ONT
-
LGA
10h 39m2 stops
C$ 368Delta
Tue, 10 Feb - Mon, 16 Feb
Delta Logo
6:00 a.m. - 11:20 a.m.
LGA
-
ONT
8h 20m1 stop
Delta Logo
12:00 p.m. - 11:50 p.m.
ONT
-
LGA
8h 50m1 stop
C$ 383Delta
Tue, 21 Apr - Sat, 25 Apr
United Airlines Logo
3:00 p.m. - 10:26 p.m.
LGA
-
ONT
10h 26m1 stop
United Airlines Logo
7:00 a.m. - 8:16 p.m.
ONT
-
LGA
10h 16m1 stop
C$ 384United Airlines
Sat, 18 Apr - Mon, 20 Apr
Delta Logo
6:00 a.m. - 11:31 a.m.
LGA
-
ONT
8h 31m1 stop
Delta Logo
10:30 p.m. - 4:15 p.m.
ONT
-
LGA
14h 45m2 stops
C$ 390Delta
Sun, 11 Jan - Fri, 16 Jan
Delta Logo
10:59 a.m. - 9:05 p.m.
LGA
-
ONT
13h 06m2 stops
Delta Logo
10:20 p.m. - 1:12 p.m.
ONT
-
LGA
11h 52m2 stops
C$ 397Delta
Fri, 13 Feb - Tue, 17 Feb

Delta flights from New York LaGuardia Airport to Ontario

Our best Delta deals on New York LaGuardia Airport to Ontario flight tickets
Delta
2 Feb
LGA4:00 p.m.New York LaGuardia
8h 05m
1 stop
ONT9:05 p.m.Ontario
14 Feb
ONT10:20 p.m.Ontario
9h 28m
1 stop
LGA10:48 a.m.New York LaGuardia
C$ 354
Find similar
Delta
9 Feb
LGA1:00 p.m.New York LaGuardia
11h 05m
1 stop
ONT9:05 p.m.Ontario
13 Feb
ONT10:20 p.m.Ontario
14h 55m
2 stops
LGA4:15 p.m.New York LaGuardia
C$ 361
Find similar
Delta
9 Feb
LGA4:54 p.m.New York LaGuardia
10h 04m
2 stops
ONT11:58 p.m.Ontario
13 Feb
ONT10:20 p.m.Ontario
14h 55m
2 stops
LGA4:15 p.m.New York LaGuardia
C$ 368
Find similar

Southwest flights from New York LaGuardia Airport to Ontario

Our best Southwest deals on New York LaGuardia Airport to Ontario flight tickets
Southwest
13 Feb
LGA6:00 a.m.New York LaGuardia
10h 35m
1 stop
ONT1:35 p.m.Ontario
17 Feb
ONT10:40 a.m.Ontario
9h 45m
1 stop
LGA11:25 p.m.New York LaGuardia
C$ 351
Find similar
Southwest
13 Feb
LGA6:00 a.m.New York LaGuardia
10h 35m
1 stop
ONT1:35 p.m.Ontario
17 Feb
ONT12:55 p.m.Ontario
6h 55m
1 stop
LGA10:50 p.m.New York LaGuardia
C$ 353
Find similar
Southwest
13 Feb
LGA6:00 a.m.New York LaGuardia
10h 35m
1 stop
ONT1:35 p.m.Ontario
17 Feb
ONT8:50 p.m.Ontario
9h 20m
2 stops
LGA9:10 a.m.New York LaGuardia
C$ 358
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia Airport to Ontario 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 96,600 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from New York LaGuardia Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 13/2

6:00 a.m.-1:35 p.m.

1 stop10h 35m

Ontario

Tue 17/2

7:20 a.m.-5:15 p.m.

1 stop6h 55m

C$ 351

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 13/2

6:00 a.m.-1:35 p.m.

1 stop10h 35m

Ontario

Wed 18/2

5:15 a.m.-4:25 p.m.

1 stop8h 10m

C$ 353

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 2/2

4:00 p.m.-9:05 p.m.

1 stop8h 05m

Ontario

Sun 8/2

10:30 p.m.-8:48 a.m.

1 stop7h 18m

C$ 354

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 13/2

6:00 a.m.-1:35 p.m.

1 stop10h 35m

Ontario

Tue 17/2

8:50 p.m.-9:10 a.m.

2 stops9h 20m

C$ 358

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 9/2

4:54 p.m.-11:58 p.m.

2 stops10h 04m

Ontario

Sat 14/2

10:20 p.m.-9:47 a.m.

1 stop8h 27m

C$ 361

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 10/2

1:05 p.m.-11:58 p.m.

2 stops13h 53m

Ontario

Mon 16/2

10:20 p.m.-11:59 a.m.

2 stops10h 39m

C$ 368

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 21/4

6:00 a.m.-11:20 a.m.

1 stop8h 20m

Ontario

Sat 25/4

12:00 p.m.-11:50 p.m.

1 stop8h 50m

C$ 383

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sat 18/4

3:00 p.m.-10:26 p.m.

1 stop10h 26m

Ontario

Mon 20/4

7:00 a.m.-8:16 p.m.

1 stop10h 16m

C$ 384

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sun 11/1

6:00 a.m.-11:31 a.m.

1 stop8h 31m

Ontario

Fri 16/1

10:30 p.m.-4:15 p.m.

2 stops14h 45m

C$ 390

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 13/2

10:59 a.m.-9:05 p.m.

2 stops13h 06m

Ontario

Tue 17/2

10:20 p.m.-1:12 p.m.

2 stops11h 52m

C$ 397

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 Los Angeles from

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

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 Ontario?

The month of October is, on average, the cheapest month to fly to Ontario from New York LaGuardia Airport, with most prices found around C$ 325. The month of November is another great option to travel to Ontario, with average flight prices from New York LaGuardia Airport averaging around C$ 437.

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

As of December 2025, prices for New York LaGuardia Airport to Ontario flights are approximately 99% more expensive when compared to flights at the same time last year.

When to book flights from New York LaGuardia Airport to Ontario

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

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

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

Fastest flight time

26h 17m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Ontario takes 26h 17m
There are no direct flights from New York LaGuardia Airport to Ontario. There are no popular flight routes from New York LaGuardia Airport to Ontario.
Search flight deals

  • How far is New York LaGuardia to Ontario by plane?

    Ontario is 3893.4 km away from New York LaGuardia. By plane, this route typically takes 26h 17m.

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

    Prices for flights from New York LaGuardia Airport to Ontario Airport are refreshed on a daily basis.

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

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from New York to Ontario. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Ontario from New York which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from New York.

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

Yes. momondo can track prices for New York to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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