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Cheap flights from New York LaGuardia Airport to Los Angeles from C$ 225

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 25/8. 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
1 adult, Economy, 0 bags

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.
Delta Logo
6:00 a.m. - 10:47 a.m.
LGA
-
ONT
7h 47m
1 stop
Delta Logo
11:59 a.m. - 10:41 p.m.
ONT
-
LGA
7h 42m
1 stop
C$ 434Delta
Wed, 16 Sep - Tue, 22 Sep
Southwest Logo
4:55 p.m. - 10:20 p.m.
LGA
-
ONT
8h 25m
1 stop
Southwest Logo
11:55 p.m. - 11:15 a.m.
ONT
-
LGA
8h 20m
1 stop
C$ 443Southwest
Tue, 14 Jul - Tue, 21 Jul
Frontier Logo
10:55 p.m. - 7:12 a.m.
LGA
-
ONT
11h 17m
1 stop
Frontier Logo
8:07 a.m. - 10:00 p.m.
ONT
-
LGA
10h 53m
1 stop
C$ 470Frontier
Fri, 11 Sep - Thu, 17 Sep
Frontier Logo
10:55 p.m. - 8:37 a.m.
LGA
-
ONT
12h 42m
1 stop
Frontier Logo
8:17 a.m. - 10:00 p.m.
ONT
-
LGA
10h 43m
1 stop
C$ 471Frontier
Fri, 17 Jul - Sat, 25 Jul
Southwest Logo
10:55 a.m. - 5:55 p.m.
LGA
-
ONT
10h 00m
1 stop
Southwest Logo
11:55 p.m. - 12:45 p.m.
ONT
-
LGA
9h 50m
1 stop
C$ 477Southwest
Tue, 28 Jul - Tue, 28 Jul
Southwest Logo
10:55 a.m. - 5:55 p.m.
LGA
-
ONT
10h 00m
1 stop
Southwest Logo
5:45 a.m. - 5:45 p.m.
ONT
-
LGA
9h 00m
2 stops
C$ 478Southwest
Tue, 28 Jul - Tue, 11 Aug
Southwest Logo
10:40 a.m. - 4:10 p.m.
LGA
-
ONT
8h 30m
1 stop
Southwest Logo
11:00 a.m. - 9:55 p.m.
ONT
-
LGA
7h 55m
1 stop
C$ 485Southwest
Fri, 7 Aug - Fri, 14 Aug
Southwest Logo
6:55 a.m. - 12:10 p.m.
LGA
-
ONT
8h 15m
1 stop
Southwest Logo
1:20 p.m. - 11:10 p.m.
ONT
-
LGA
6h 50m
1 stop
C$ 491Southwest
Fri, 10 Jul - Wed, 15 Jul
Southwest Logo
6:55 a.m. - 12:40 p.m.
LGA
-
ONT
8h 45m
1 stop
Southwest Logo
5:30 a.m. - 4:50 p.m.
ONT
-
LGA
8h 20m
2 stops
C$ 492Southwest
Wed, 8 Jul - Tue, 21 Jul
Southwest Logo
4:25 p.m. - 10:40 p.m.
LGA
-
ONT
9h 15m
1 stop
Southwest Logo
5:45 a.m. - 5:55 p.m.
ONT
-
LGA
9h 10m
2 stops
C$ 498Southwest
Thu, 9 Jul - Tue, 14 Jul

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American Airlines flights from New York LaGuardia Airport to Ontario

Our best American Airlines deals on New York LaGuardia Airport to Ontario flight tickets
American Airlines
26 Aug
LGA1:55 p.m.New York LaGuardia
7h 52m
1 stop
ONT6:47 p.m.Ontario
1 Sep
ONT10:29 a.m.Ontario
8h 00m
1 stop
LGA9:29 p.m.New York LaGuardia
C$ 532
American Airlines
8 Jul
LGA6:00 p.m.New York LaGuardia
8h 59m
1 stop
ONT11:59 p.m.Ontario
12 Jul
ONT11:59 p.m.Ontario
7h 31m
1 stop
LGA10:30 a.m.New York LaGuardia
C$ 587
American Airlines
24 Jun
LGA8:34 a.m.New York LaGuardia
7h 54m
1 stop
ONT1:28 p.m.Ontario
26 Jun
ONT7:00 a.m.Ontario
9h 22m
1 stop
LGA7:22 p.m.New York LaGuardia
C$ 746

Southwest flights from New York LaGuardia Airport to Ontario

Our best Southwest deals on New York LaGuardia Airport to Ontario flight tickets
Southwest
28 Jul
LGA10:55 a.m.New York LaGuardia
10h 00m
1 stop
ONT5:55 p.m.Ontario
28 Jul
ONT11:55 p.m.Ontario
9h 50m
1 stop
LGA12:45 p.m.New York LaGuardia
C$ 477
Southwest
7 Aug
LGA10:40 a.m.New York LaGuardia
8h 30m
1 stop
ONT4:10 p.m.Ontario
14 Aug
ONT11:00 a.m.Ontario
7h 55m
1 stop
LGA9:55 p.m.New York LaGuardia
C$ 485
Southwest
10 Jul
LGA6:55 a.m.New York LaGuardia
8h 15m
1 stop
ONT12:10 p.m.Ontario
15 Jul
ONT1:20 p.m.Ontario
6h 50m
1 stop
LGA11:10 p.m.New York LaGuardia
C$ 491

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 21 June 2026.
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

Cheapest round-trip

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 16/9

6:00 a.m.-10:47 a.m.

1 stop7h 47m

Ontario

Tue 22/9

11:59 a.m.-10:41 p.m.

1 stop7h 42m

C$ 434

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 14/7

4:55 p.m.-10:20 p.m.

1 stop8h 25m

Ontario

Tue 21/7

11:55 p.m.-11:15 a.m.

1 stop8h 20m

C$ 443

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 11/9

10:55 p.m.-7:12 a.m.

1 stop11h 17m

Ontario

Thu 17/9

8:07 a.m.-10:00 p.m.

1 stop10h 53m

C$ 470

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 17/7

10:55 p.m.-8:37 a.m.

1 stop12h 42m

Ontario

Sat 25/7

8:17 a.m.-10:00 p.m.

1 stop10h 43m

C$ 471

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 28/7

10:55 a.m.-5:55 p.m.

1 stop10h 00m

Ontario

Tue 28/7

11:55 p.m.-12:45 p.m.

1 stop9h 50m

C$ 477

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 28/7

10:55 a.m.-5:55 p.m.

1 stop10h 00m

Ontario

Tue 11/8

5:45 a.m.-5:45 p.m.

2 stops9h 00m

C$ 478

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 7/8

10:40 a.m.-4:10 p.m.

1 stop8h 30m

Ontario

Fri 14/8

11:00 a.m.-9:55 p.m.

1 stop7h 55m

C$ 485
Quickest round-trip

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 10/7

6:55 a.m.-12:10 p.m.

1 stop8h 15m

Ontario

Wed 15/7

1:20 p.m.-11:10 p.m.

1 stop6h 50m

C$ 491

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 8/7

6:55 a.m.-12:40 p.m.

1 stop8h 45m

Ontario

Tue 21/7

5:30 a.m.-4:50 p.m.

2 stops8h 20m

C$ 492

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 9/7

4:25 p.m.-10:40 p.m.

1 stop9h 15m

Ontario

Tue 14/7

5:45 a.m.-5:55 p.m.

2 stops9h 10m

C$ 498

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

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$ 255. The month of February is another great option to travel to Ontario, with average flight prices from New York LaGuardia Airport averaging around C$ 395.

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

As of June 2026, prices for New York LaGuardia Airport to Ontario flights are approximately 6% 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

9h 20m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Ontario takes 9h 20m
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

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

  • 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 9h 20m.

  • 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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