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Cheap flights from New York LaGuardia Airport to Los Angeles from $101

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 4/9. 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
7:15 am - 2:35 pm
LGA
-
ONT
10h 20m
1 stop
Southwest Logo
5:15 am - 4:25 pm
ONT
-
LGA
8h 10m
1 stop
$193Southwest
Tue, Feb 24 - Tue, Mar 3
Southwest Logo
2:00 pm - 9:45 pm
LGA
-
ONT
10h 45m
1 stop
Southwest Logo
9:00 pm - 9:10 am
ONT
-
LGA
9h 10m
2 stops
$198Southwest
Tue, Feb 24 - Tue, Mar 3
Southwest Logo
2:30 pm - 9:45 pm
LGA
-
ONT
10h 15m
2 stops
Southwest Logo
9:00 pm - 9:10 am
ONT
-
LGA
9h 10m
2 stops
$203Southwest
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
8:59 pm - 2:29 pm
LGA
-
ONT
20h 30m
1 stop
Multiple Airlines Logo
8:40 am - 11:06 pm
ONT
-
LGA
11h 26m
2 stops
$223Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Frontier Logo
10:00 pm - 11:56 pm
LGA
-
ONT
28h 56m
1 stop
Frontier Logo
8:15 am - 10:00 pm
ONT
-
LGA
10h 45m
1 stop
$226Frontier
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
5:07 pm - 11:59 pm
LGA
-
ONT
9h 52m
1 stop
American Airlines Logo
11:58 pm - 12:24 pm
ONT
-
LGA
9h 26m
1 stop
$236American Airlines
Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
8:59 pm - 9:34 am
LGA
-
ONT
15h 35m
2 stops
Multiple Airlines Logo
2:06 pm - 2:00 pm
ONT
-
LGA
20h 54m
1 stop
$244Multiple Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
3:36 pm - 9:59 pm
LGA
-
ONT
9h 23m
1 stop
United Airlines Logo
6:37 pm - 8:44 am
ONT
-
LGA
11h 07m
2 stops
$252United Airlines
Wed, Mar 4 - Sat, Mar 7
Multiple Airlines Logo
6:20 am - 11:59 pm
LGA
-
ONT
20h 39m
2 stops
Multiple Airlines Logo
2:06 pm - 2:00 pm
ONT
-
LGA
20h 54m
1 stop
$253Multiple Airlines
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
8:59 pm - 2:29 pm
LGA
-
ONT
20h 30m
1 stop
Multiple Airlines Logo
8:35 am - 11:06 pm
ONT
-
LGA
11h 31m
2 stops
$254Multiple Airlines
Sat, Feb 21 - Tue, Feb 24

Southwest flights from New York LaGuardia Airport to Ontario

Our best Southwest deals on New York LaGuardia Airport to Ontario flight tickets
Southwest
Feb 24
LGA7:15 amNew York LaGuardia
10h 20m
1 stop
ONT2:35 pmOntario
Mar 3
ONT5:15 amOntario
8h 10m
1 stop
LGA4:25 pmNew York LaGuardia
$193
Southwest
Feb 24
LGA2:00 pmNew York LaGuardia
10h 45m
1 stop
ONT9:45 pmOntario
Mar 3
ONT9:00 pmOntario
9h 10m
2 stops
LGA9:10 amNew York LaGuardia
$198
Southwest
Feb 24
LGA2:30 pmNew York LaGuardia
10h 15m
2 stops
ONT9:45 pmOntario
Mar 3
ONT9:00 pmOntario
9h 10m
2 stops
LGA9:10 amNew York LaGuardia
$203

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
Feb 20
LGA5:07 pmNew York LaGuardia
9h 52m
1 stop
ONT11:59 pmOntario
Feb 22
ONT11:58 pmOntario
9h 26m
1 stop
LGA12:24 pmNew York LaGuardia
$236
American Airlines
Feb 20
LGA5:07 pmNew York LaGuardia
9h 52m
1 stop
ONT11:59 pmOntario
Mar 1
ONT11:58 pmOntario
8h 32m
1 stop
LGA11:30 amNew York LaGuardia
$270
American Airlines
Feb 19
LGA3:15 pmNew York LaGuardia
9h 09m
1 stop
ONT9:24 pmOntario
Feb 23
ONT11:58 pmOntario
8h 32m
1 stop
LGA11:30 amNew York LaGuardia
$275

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 832,500 searches. Data last updated January 29, 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

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 2/24

7:15 am-2:35 pm

1 stop10h 20m

Ontario

Tue 3/3

5:15 am-4:25 pm

1 stop8h 10m

$193

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 2/24

2:00 pm-9:45 pm

1 stop10h 45m

Ontario

Tue 3/3

9:00 pm-9:10 am

2 stops9h 10m

$198

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 2/24

2:30 pm-9:45 pm

2 stops10h 15m

Ontario

Tue 3/3

9:00 pm-9:10 am

2 stops9h 10m

$203

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 2/25

8:59 pm-2:29 pm

1 stop20h 30m

Ontario

Wed 3/4

8:40 am-11:06 pm

2 stops11h 26m

$223

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 4/9

10:00 pm-11:56 pm

1 stop28h 56m

Ontario

Tue 4/14

8:15 am-10:00 pm

1 stop10h 45m

$226

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 2/20

5:07 pm-11:59 pm

1 stop9h 52m

Ontario

Sun 2/22

11:58 pm-12:24 pm

1 stop9h 26m

$236

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 2/18

8:59 pm-9:34 am

2 stops15h 35m

Ontario

Sun 2/22

2:06 pm-2:00 pm

1 stop20h 54m

$244

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 3/4

3:36 pm-9:59 pm

1 stop9h 23m

Ontario

Sat 3/7

6:37 pm-8:44 am

2 stops11h 07m

$252

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 2/19

6:20 am-11:59 pm

2 stops20h 39m

Ontario

Sun 2/22

2:06 pm-2:00 pm

1 stop20h 54m

$253

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sat 2/21

8:59 pm-2:29 pm

1 stop20h 30m

Ontario

Tue 2/24

8:35 am-11:06 pm

2 stops11h 31m

$254

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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?

In general, October is the cheapest month to fly from New York LaGuardia Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $236. If you aren’t able to travel during the month of October, then book flights to Ontario from New York LaGuardia Airport during November instead. Flights to Ontario in November, while not as cheap as those in October, still average around $317.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $306. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from New York LaGuardia Airport to Ontario for around $387.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from New York LaGuardia Airport to Ontario when you can find flight prices for as low as $336. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $337 on average. Flights to Ontario from New York LaGuardia Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

As of January 2026, prices for New York LaGuardia Airport to Ontario flights are approximately 56% 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

7h 47m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Ontario takes 7h 47m
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?

    There are 2419.3 mi between New York LaGuardia and Ontario. In terms of flight time, this usually takes a little over 7h 47m.

  • 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 updated daily.

  • How many operators does momondo search for flights from New York LaGuardia Airport to Ontario Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from New York LaGuardia Airport to Ontario Airport.

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

    The necessary travel and health documents for your Ontario 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 airline from New York LaGuardia Airport to Ontario?

Best airlines flying from New York LaGuardia Airport to Ontario

Compare and see reviews for airlines that fly from New York LaGuardia Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $159Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
SouthwestPriceFrom $192Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
American AirlinesPriceFrom $192Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
DeltaPriceFrom $270Free CancellationRating
7.9
8,127 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find New York to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

All flight searches from New York to Ontario on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Ontario from New York. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Ontario from New York. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ontario trip

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