How long is the flight from New York LaGuardia Airport to Ontario?

A quick flight from New York LaGuardia Airport to Ontario can take about 8h 38m. Delta provides one of the quickest options available for as low as $257. The distance between New York LaGuardia Airport and Ontario is about 2417 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from New York LaGuardia Airport to Ontario round-trip?

Frontier, at $170, was found to be the cheapest airline from New York LaGuardia Airport to Ontario.Alternate airlines to your destination round-trip include Southwest and United Airlines. Frontier is currently priced 58% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What are the most popular airlines that fly from New York LaGuardia Airport to Ontario?

American Airlines, Southwest and Frontier are the most popular airlines when flying from New York LaGuardia Airport to Ontario.

Most accurate provider : When it comes to deals on New York LaGuardia Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New York LaGuardia Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on New York LaGuardia Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New York LaGuardia Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Ontario from New York LaGuardia?

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from New York LaGuardia. Booking flights from New York LaGuardia to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from New York LaGuardia from 5 different airlines.

Can I find deals for flights from LaGuardia to Ontario that include hotel bookings?

Yes. In addition to deals on LaGuardia to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from LaGuardia to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Ontario.

Can I find deals for business class flights from LaGuardia to Ontario?

Yes. Cheapflights offers flight deals from LaGuardia to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$111+ Flights from New York LaGuardia Airport, NY to Ontario

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Find flight deals from LaGuardia to Ontario

Cheapest flights from LaGuardia to Ontario
Explore the most affordable flight options available from LaGuardia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

Fri 10/245:03 pmLGA - ONT

2 stops33h 47mFrontier

Mon 11/34:05 pmONT - LGA

1 stop26h 55mFrontier

Deal found 10/15

$244

Thu 10/3012:30 pmLGA - ONT

2 stops21h 59mMultiple Airlines

Sat 11/18:39 amONT - LGA

1 stop9h 31mMultiple Airlines

Deal found 10/14

$246

Mon 10/278:54 pmLGA - ONT

2 stops26h 48mFrontier

Thu 10/306:53 amONT - LGA

1 stop12h 07mFrontier

Deal found 10/15

$247

Wed 10/2210:00 pmLGA - ONT

1 stop12h 49mFrontier

Sat 11/18:39 amONT - LGA

1 stop8h 22mFrontier

Deal found 10/15

$250

Sat 11/88:56 pmLGA - ONT

1 stop12h 26mFrontier

Mon 11/104:05 pmONT - LGA

1 stop26h 55mFrontier

Deal found 10/15

$251

Thu 11/1310:55 pmLGA - ONT

1 stop27h 55mFrontier

Sun 11/167:22 amONT - LGA

1 stop10h 42mFrontier

Deal found 10/15

$252

Thu 11/2011:10 amLGA - ONT

1 stop11h 05mSouthwest

Wed 11/2611:20 amONT - LGA

1 stop9h 05mSouthwest

Deal found 10/16

$255

Thu 10/2310:55 pmLGA - ONT

1 stop13h 40mFrontier

Thu 10/306:53 amONT - LGA

1 stop12h 07mFrontier

Deal found 10/16

$256

Thu 11/63:00 pmLGA - ONT

1 stop10h 22mDelta

Sun 11/910:25 pmONT - LGA

1 stop7h 19mDelta

Deal found 10/16

$257

Sun 11/910:00 pmLGA - ONT

1 stop12h 29mFrontier

Tue 11/118:45 amONT - LGA

1 stop10h 15mFrontier

Deal found 10/14

$258

Thu 10/2310:55 pmLGA - ONT

1 stop27h 55mFrontier

Tue 11/48:45 amONT - LGA

1 stop10h 15mFrontier

Deal found 10/14

$259

Fri 10/316:00 amLGA - ONT

1 stop7h 26mDelta

Mon 11/310:00 pmONT - LGA

1 stop7h 12mDelta

Deal found 10/14

$260

Best flights from LaGuardia to Ontario
Discover carefully curated flight deals from LaGuardia to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 16, 2025.

Sat 1/176:00 amLGA - ONT

1 stop8h 38mDelta

Thu 1/2210:30 pmONT - LGA

1 stop7h 16mDelta

Deal found 10/16

$257

Thu 11/2011:10 amLGA - ONT

1 stop11h 05mSouthwest

Tue 12/28:55 pmONT - LGA

2 stops9h 05mSouthwest

Deal found 10/14

$260

Wed 10/2910:15 amLGA - ONT

2 stops10h 19mUnited Airlines

Thu 10/305:05 amONT - LGA

1 stop9h 15mUnited Airlines

Deal found 10/14

$268

Wed 1/146:00 amLGA - ONT

1 stop8h 38mDelta

Thu 1/2210:30 pmONT - LGA

1 stop7h 16mDelta

Deal found 10/16

$257

Thu 10/302:00 pmLGA - ONT

1 stop8h 50mSouthwest

Mon 11/35:25 amONT - LGA

1 stop8h 00mSouthwest

Deal found 10/14

$263

Tue 2/246:00 amLGA - ONT

1 stop8h 38mDelta

Sat 2/2810:30 pmONT - LGA

1 stop9h 17mDelta

Deal found 10/14

$257

Fri 10/316:00 amLGA - ONT

1 stop7h 26mDelta

Mon 11/310:00 pmONT - LGA

1 stop7h 12mDelta

Deal found 10/14

$260

Mon 11/101:55 pmLGA - ONT

2 stops12h 57mDelta

Thu 11/1310:25 pmONT - LGA

1 stop7h 19mDelta

Deal found 10/15

$262

Thu 12/41:56 pmLGA - ONT

2 stops13h 02mDelta

Mon 12/812:12 pmONT - LGA

1 stop8h 29mDelta

Deal found 10/15

$262

Tue 11/111:55 pmLGA - ONT

2 stops12h 57mDelta

Sat 11/155:49 pmONT - LGA

2 stops12h 06mDelta

Deal found 10/14

$267

Last-minute flights from LaGuardia to Ontario
Discover last-minute flight deals from LaGuardia to Ontario. Data last updated October 16, 2025 and is based on user searches.

Wed 10/2210:00 pmLGA - ONT

1 stop12h 49mFrontier

Thu 10/306:53 amONT - LGA

1 stop12h 07mFrontier

Deal found 10/15

$250

Thu 10/2310:55 pmLGA - ONT

1 stop13h 40mFrontier

Thu 10/306:53 amONT - LGA

1 stop12h 07mFrontier

Deal found 10/16

$256

Thu 10/2310:55 pmLGA - ONT

1 stop27h 55mFrontier

Tue 11/48:45 amONT - LGA

1 stop10h 15mFrontier

Deal found 10/14

$259

Fri 10/245:03 pmLGA - ONT

2 stops33h 47mFrontier

Mon 11/34:05 pmONT - LGA

1 stop26h 55mFrontier

Deal found 10/15

$244

Mon 10/278:54 pmLGA - ONT

2 stops26h 48mFrontier

Thu 10/306:53 amONT - LGA

1 stop12h 07mFrontier

Deal found 10/15

$247

Thu 10/3012:30 pmLGA - ONT

2 stops21h 59mMultiple Airlines

Sat 11/18:39 amONT - LGA

1 stop9h 31mMultiple Airlines

Deal found 10/14

$246

Fri 10/316:00 amLGA - ONT

1 stop7h 26mDelta

Mon 11/310:00 pmONT - LGA

1 stop7h 12mDelta

Deal found 10/14

$260

Thu 11/63:00 pmLGA - ONT

1 stop10h 22mDelta

Sun 11/910:25 pmONT - LGA

1 stop7h 19mDelta

Deal found 10/16

$257

Sat 11/88:56 pmLGA - ONT

1 stop12h 26mFrontier

Mon 11/104:05 pmONT - LGA

1 stop26h 55mFrontier

Deal found 10/15

$251

Sun 11/910:00 pmLGA - ONT

1 stop12h 29mFrontier

Tue 11/118:45 amONT - LGA

1 stop10h 15mFrontier

Deal found 10/14

$258

Thu 11/1310:55 pmLGA - ONT

1 stop27h 55mFrontier

Sun 11/167:22 amONT - LGA

1 stop10h 42mFrontier

Deal found 10/15

$252

Thu 11/2011:10 amLGA - ONT

1 stop11h 05mSouthwest

Wed 11/2611:20 amONT - LGA

1 stop9h 05mSouthwest

Deal found 10/16

$255

One-way flights from LaGuardia to Ontario
Search for one-way flight options from LaGuardia to Ontario. Find affordable one-way fares based on user searches. Data last updated October 16, 2025.

Sat 11/88:56 pmLGA - ONT

1 stop12h 26mFrontier

Deal found 10/16

$111

Tue 11/410:50 pmLGA - ONT

1 stop25h 37mFrontier

Deal found 10/16

$117

Tue 11/47:30 amLGA - ONT

2 stops16h 57mMultiple Airlines

Deal found 10/14

$122

Sun 11/910:55 pmLGA - ONT

1 stop27h 55mFrontier

Deal found 10/16

$127

Mon 11/310:00 pmLGA - ONT

2 stops26h 27mFrontier

Deal found 10/15

$128

Fri 10/3112:59 pmLGA - ONT

1 stop9h 20mDelta

Deal found 10/15

$129

Sat 11/16:00 amLGA - ONT

1 stop7h 26mDelta

Deal found 10/15

$132

Thu 10/231:59 pmLGA - ONT

1 stop8h 20mDelta

Deal found 10/15

$134

Thu 10/3012:59 pmLGA - ONT

3 stops37h 51mMultiple Airlines

Deal found 10/14

$136

Wed 11/196:30 amLGA - ONT

3 stops17h 12mMultiple Airlines

Deal found 10/15

$138

Cheap flight deals from LaGuardia to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$240 (American Airlines)
One-way from	$111 (CheapOair)
Popular in	September
Cheapest in	March
Average price	$346

Provider with most accurate pricing for New York LaGuardia-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for New York LaGuardia-Ontario flights.

Search Deals

From New York LaGuardia to Ontario

Search Deals

One-way flight from New York LaGuardia to Ontario

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Cheapflights Fare Finder

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 1/17

6:00 am-11:38 am

1 stop8h 38m

Ontario

Thu 1/22

10:30 pm-8:46 am

1 stop7h 16m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 1/14

6:00 am-11:38 am

1 stop8h 38m

Ontario

Thu 1/22

10:30 pm-8:46 am

1 stop7h 16m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 2/24

6:00 am-11:38 am

1 stop8h 38m

Ontario

Sat 2/28

10:30 pm-10:47 am

1 stop9h 17m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 11/20

11:10 am-7:15 pm

1 stop11h 05m

Ontario

Tue 12/2

8:55 pm-9:00 am

2 stops9h 05m

$260

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 10/31

6:00 am-10:26 am

1 stop7h 26m

Ontario

Mon 11/3

10:00 pm-8:12 am

1 stop7h 12m

$260

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 11/10

1:55 pm-11:52 pm

2 stops12h 57m

Ontario

Thu 11/13

10:25 pm-8:44 am

1 stop7h 19m

$262

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 12/4

1:56 pm-11:58 pm

2 stops13h 02m

Ontario

Mon 12/8

12:12 pm-11:41 pm

1 stop8h 29m

$262

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 10/30

2:00 pm-7:50 pm

1 stop8h 50m

Ontario

Mon 11/3

5:25 am-4:25 pm

1 stop8h 00m

$263

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 11/11

1:55 pm-11:52 pm

2 stops12h 57m

Ontario

Sat 11/15

5:49 pm-8:55 am

2 stops12h 06m

$267

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 10/29

10:15 am-5:34 pm

2 stops10h 19m

Ontario

Thu 10/30

5:05 am-5:20 pm

1 stop9h 15m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 22 results

Compare providers for flights from LaGuardia to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from LaGuardia to Ontario in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on New York LaGuardia Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New York LaGuardia Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on New York LaGuardia Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New York LaGuardia Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from LaGuardia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from LaGuardia with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Ontario

What is the cheapest month to book a flight from New York LaGuardia Airport to Ontario?

Currently, April is the cheapest month in which you can book a flight from New York LaGuardia Airport to Ontario (average of $133). Flying from New York LaGuardia Airport to Ontario in December is currently the most expensive (average of $260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGA to ONT?

When flying from New York LaGuardia Airport to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight in the afternoon.

Reviews of airlines servicing Ontario

See what other customers who have flown with Southwest, Delta, and United Airlines from New York LaGuardia Airport to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,241 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

8.0

Very good

7,984 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,982 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,043 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,137 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airport do you fly into for flights to Ontario from New York LaGuardia?
Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from New York LaGuardia. Booking flights from New York LaGuardia to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from New York LaGuardia from 5 different airlines.
How long is the flight from New York LaGuardia Airport to Ontario?
A quick flight from New York LaGuardia Airport to Ontario can take about 8h 38m. Delta provides one of the quickest options available for as low as $257. The distance between New York LaGuardia Airport and Ontario is about 2417 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from New York LaGuardia Airport to Ontario round-trip?
Frontier, at $170, was found to be the cheapest airline from New York LaGuardia Airport to Ontario.Alternate airlines to your destination round-trip include Southwest and United Airlines. Frontier is currently priced 58% below the average price you’ll pay for this route.
Can I find deals for flights from LaGuardia to Ontario that include hotel bookings?
Yes. In addition to deals on LaGuardia to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from LaGuardia to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Ontario.
Can I find deals for business class flights from LaGuardia to Ontario?
Yes. Cheapflights offers flight deals from LaGuardia to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from New York LaGuardia Airport to Ontario?
Currently, April is the cheapest month in which you can book a flight from New York LaGuardia Airport to Ontario (average of $133). Flying from New York LaGuardia Airport to Ontario in December is currently the most expensive (average of $260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Ontario

Top 5 airlines flying from LaGuardia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$170	Average$304	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$192	Average$447	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$214	Average$610	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$266	Average$422	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$276	Average$477	FlexibilityNo cancel fee	On-timeN/A

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$111+ Cheap flights from LaGuardia, NY (LGA) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from LaGuardia to Ontario with Cheapflights

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Find flight deals from LaGuardia to Ontario

Cheapest flights from LaGuardia to OntarioExplore the most affordable flight options available from LaGuardia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

Explore the most affordable flight options available from LaGuardia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

Cheap flight deals from LaGuardia to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from New York LaGuardia Airport to Ontario that are best for you.

Compare providers for flights from LaGuardia to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from LaGuardia to Ontario in October.

Best time to book a flight from LaGuardia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from LaGuardia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Ontario

What is the cheapest month to book a flight from New York LaGuardia Airport to Ontario?

What is the cheapest time of day to fly from LGA to ONT?

Reviews of airlines servicing Ontario

See what other customers who have flown with Southwest, Delta, and United Airlines from New York LaGuardia Airport to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from LaGuardia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ontario from New York LaGuardia?

How long is the flight from New York LaGuardia Airport to Ontario?

What are the cheapest airlines flying from New York LaGuardia Airport to Ontario round-trip?

Can I find deals for flights from LaGuardia to Ontario that include hotel bookings?

How can I find direct flights from LaGuardia to Ontario?

Can I find deals for business class flights from LaGuardia to Ontario?

What is the cheapest month to book a flight from New York LaGuardia Airport to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for LaGuardia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from LaGuardia to Ontario

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Cheapest flights from LaGuardia to Ontario
Explore the most affordable flight options available from LaGuardia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.