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Cheap flights from New York LaGuardia Airport to Los Angeles from C$ 172

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 25/10. 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

Southwest Logo
6:00 a.m. - 11:10 a.m.LGA-ONT
8h 10m1 stop
Southwest Logo
5:45 a.m. - 5:55 p.m.ONT-LGA
9h 10m1 stop
C$ 222Southwest
Find Deal
Sat, 8 Nov - Tue, 11 Nov
Southwest Logo
9:00 a.m. - 3:35 p.m.LGA-ONT
9h 35m1 stop
Southwest Logo
5:15 a.m. - 4:20 p.m.ONT-LGA
8h 05m1 stop
C$ 238Southwest
Find Deal
Thu, 2 Oct - Tue, 7 Oct
Southwest Logo
6:05 a.m. - 3:15 p.m.LGA-ONT
12h 10m1 stop
Southwest Logo
10:30 a.m. - 11:15 p.m.ONT-LGA
9h 45m1 stop
C$ 245Southwest
Find Deal
Mon, 10 Nov - Wed, 12 Nov
Southwest Logo
9:00 a.m. - 3:35 p.m.LGA-ONT
9h 35m1 stop
Southwest Logo
5:15 a.m. - 9:10 p.m.ONT-LGA
12h 55m2 stops
C$ 254Southwest
Find Deal
Thu, 2 Oct - Tue, 7 Oct
Southwest Logo
6:00 a.m. - 11:10 a.m.LGA-ONT
8h 10m1 stop
Southwest Logo
8:55 p.m. - 9:00 a.m.ONT-LGA
9h 05m2 stops
C$ 270Southwest
Find Deal
Sat, 8 Nov - Tue, 11 Nov
Frontier Logo
10:56 p.m. - 7:23 a.m.LGA-ONT
11h 27m1 stop
Frontier Logo
8:24 a.m. - 9:05 p.m.ONT-LGA
9h 41m1 stop
C$ 328Frontier
Find Deal
Wed, 1 Oct - Fri, 31 Oct
United Airlines Logo
10:00 a.m. - 5:23 p.m.LGA-ONT
10h 23m1 stop
United Airlines Logo
6:00 a.m. - 4:45 p.m.ONT-LGA
7h 45m1 stop
C$ 349United Airlines
Find Deal
Fri, 3 Oct - Wed, 15 Oct
United Airlines Logo
5:19 p.m. - 10:30 p.m.LGA-ONT
8h 11m1 stop
United Airlines Logo
1:15 p.m. - 11:22 p.m.ONT-LGA
7h 07m1 stop
C$ 356United Airlines
Find Deal
Tue, 23 Sep - Fri, 26 Sep
Delta Logo
5:00 p.m. - 10:23 p.m.LGA-ONT
8h 23m1 stop
Delta Logo
10:00 p.m. - 9:40 a.m.ONT-LGA
8h 40m1 stop
C$ 384Delta
Find Deal
Tue, 23 Sep - Fri, 3 Oct
Delta Logo
3:59 p.m. - 11:42 p.m.LGA-ONT
10h 43m2 stops
Delta Logo
10:00 p.m. - 8:12 a.m.ONT-LGA
7h 12m1 stop
C$ 391Delta
Find Deal
Tue, 30 Sep - Tue, 7 Oct

Southwest flights from New York LaGuardia Airport to Ontario

Our best Southwest deals on New York LaGuardia Airport to Ontario flight tickets
Southwest
8 Nov
LGA6:00 a.m.New York LaGuardia
8h 10m
1 stop
ONT11:10 a.m.Ontario
11 Nov
ONT5:45 a.m.Ontario
9h 10m
1 stop
LGA5:55 p.m.New York LaGuardia
C$ 222
Find similar
Southwest
2 Oct
LGA9:00 a.m.New York LaGuardia
9h 35m
1 stop
ONT3:35 p.m.Ontario
7 Oct
ONT5:15 a.m.Ontario
8h 05m
1 stop
LGA4:20 p.m.New York LaGuardia
C$ 238
Find similar
Southwest
10 Nov
LGA6:05 a.m.New York LaGuardia
12h 10m
1 stop
ONT3:15 p.m.Ontario
12 Nov
ONT10:30 a.m.Ontario
9h 45m
1 stop
LGA11:15 p.m.New York LaGuardia
C$ 245
Find similar

United Airlines flights from New York LaGuardia Airport to Ontario

Our best United Airlines deals on New York LaGuardia Airport to Ontario flight tickets
United Airlines
3 Oct
LGA10:00 a.m.New York LaGuardia
10h 23m
1 stop
ONT5:23 p.m.Ontario
15 Oct
ONT6:00 a.m.Ontario
7h 45m
1 stop
LGA4:45 p.m.New York LaGuardia
C$ 349
Find similar
United Airlines
23 Sep
LGA5:19 p.m.New York LaGuardia
8h 11m
1 stop
ONT10:30 p.m.Ontario
26 Sep
ONT1:15 p.m.Ontario
7h 07m
1 stop
LGA11:22 p.m.New York LaGuardia
C$ 356
Find similar
United Airlines
19 Sep
LGA2:00 p.m.New York LaGuardia
10h 25m
1 stop
ONT9:25 p.m.Ontario
20 Sep
ONT7:00 a.m.Ontario
10h 17m
1 stop
LGA8:17 p.m.New York LaGuardia
C$ 370
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 11 September 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

Sat 8/11

6:00 a.m.-11:10 a.m.

1 stop8h 10m

Ontario

Tue 11/11

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

1 stop9h 10m

C$ 222

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 2/10

9:00 a.m.-3:35 p.m.

1 stop9h 35m

Ontario

Tue 7/10

5:15 a.m.-4:20 p.m.

1 stop8h 05m

C$ 238

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 10/11

6:05 a.m.-3:15 p.m.

1 stop12h 10m

Ontario

Wed 12/11

10:30 a.m.-11:15 p.m.

1 stop9h 45m

C$ 245

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 2/10

9:00 a.m.-3:35 p.m.

1 stop9h 35m

Ontario

Tue 7/10

5:15 a.m.-9:10 p.m.

2 stops12h 55m

C$ 254

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sat 8/11

6:00 a.m.-11:10 a.m.

1 stop8h 10m

Ontario

Tue 11/11

8:55 p.m.-9:00 a.m.

2 stops9h 05m

C$ 270

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 1/10

10:56 p.m.-7:23 a.m.

1 stop11h 27m

Ontario

Fri 31/10

8:24 a.m.-9:05 p.m.

1 stop9h 41m

C$ 328

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 3/10

10:00 a.m.-5:23 p.m.

1 stop10h 23m

Ontario

Wed 15/10

6:00 a.m.-4:45 p.m.

1 stop7h 45m

C$ 349

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 23/9

5:19 p.m.-10:30 p.m.

1 stop8h 11m

Ontario

Fri 26/9

1:15 p.m.-11:22 p.m.

1 stop7h 07m

C$ 356

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 23/9

5:00 p.m.-10:23 p.m.

1 stop8h 23m

Ontario

Fri 3/10

10:00 p.m.-9:40 a.m.

1 stop8h 40m

C$ 384

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 30/9

3:59 p.m.-11:42 p.m.

2 stops10h 43m

Ontario

Tue 7/10

10:00 p.m.-8:12 a.m.

1 stop7h 12m

C$ 391

Flights are sorted by cheapest round-trip flights first.

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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 September is, on average, the cheapest month to fly to Ontario from New York LaGuardia Airport, with most prices found around C$ 396. The month of August is another great option to travel to Ontario, with average flight prices from New York LaGuardia Airport averaging around C$ 427.

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

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

Direct flights

None
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.
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  • 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 7h 26m.

  • 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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