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 31m. 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 $159, was found to be the cheapest airline from New York LaGuardia Airport to Ontario.Alternate airlines to your destination round-trip include Southwest and American Airlines. Frontier is currently priced 60% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from New York LaGuardia Airport to Ontario one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $73. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from New York LaGuardia Airport to Ontario for a low price.

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 Delta 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New York LaGuardia Airport-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 4 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.

$97+ Flights from New York LaGuardia Airport, NY to Ontario

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Cheap 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 December 11, 2025.

Wed 12/1710:08 pmLGA - ONT

1 stop13h 45mFrontier

Wed 12/246:45 amONT - LGA

1 stop12h 15mFrontier

Deal found 12/11

$253

Wed 12/3110:00 pmLGA - ONT

1 stop13h 53mFrontier

Thu 1/88:31 amONT - LGA

1 stop9h 34mFrontier

Deal found 12/11

$257

Wed 12/3110:00 pmLGA - ONT

1 stop13h 53mFrontier

Wed 1/77:00 amONT - LGA

1 stop12h 00mFrontier

Deal found 12/11

$258

Wed 12/3110:00 pmLGA - ONT

1 stop13h 53mFrontier

Sat 1/107:00 amONT - LGA

1 stop7h 02mFrontier

Deal found 12/11

$275

Fri 12/1210:55 pmLGA - ONT

1 stop18h 30mFrontier

Sat 1/107:00 amONT - LGA

1 stop7h 02mFrontier

Deal found 12/11

$282

Wed 12/1710:08 pmLGA - ONT

1 stop13h 45mFrontier

Sun 1/188:32 amONT - LGA

1 stop9h 32mFrontier

Deal found 12/10

$288

Wed 12/3110:00 pmLGA - ONT

1 stop13h 53mFrontier

Fri 1/98:31 amONT - LGA

1 stop9h 34mFrontier

Deal found 12/11

$292

Wed 12/1710:08 pmLGA - ONT

1 stop13h 45mFrontier

Mon 1/56:45 amONT - LGA

1 stop12h 15mFrontier

Deal found 12/10

$304

Wed 12/3110:00 pmLGA - ONT

1 stop13h 53mFrontier

Mon 1/56:45 amONT - LGA

1 stop12h 15mFrontier

Deal found 12/10

$308

Mon 12/2910:00 pmLGA - ONT

1 stop12h 24mFrontier

Sat 1/107:00 amONT - LGA

1 stop7h 02mFrontier

Deal found 12/11

$312

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 December 11, 2025.

Thu 2/56:00 amLGA - ONT

1 stop8h 31mDelta

Sun 2/810:30 pmONT - LGA

1 stop7h 18mDelta

Deal found 12/10

$257

Mon 1/56:05 amLGA - ONT

2 stops14h 55mSouthwest

Thu 1/811:00 amONT - LGA

1 stop7h 30mSouthwest

Deal found 12/10

$267

Thu 1/229:00 amLGA - ONT

2 stops14h 10mAlaska Airlines

Tue 2/34:03 pmONT - LGA

3 stops24h 17mAlaska Airlines

Deal found 12/10

$308

Thu 1/87:15 amLGA - ONT

1 stop8h 32mUnited Airlines

Mon 1/126:00 amONT - LGA

1 stop10h 17mUnited Airlines

Deal found 12/9

$347

Fri 1/92:59 pmLGA - ONT

1 stop9h 06mDelta

Sun 1/1110:30 pmONT - LGA

2 stops10h 29mDelta

Deal found 12/10

$262

Wed 1/146:00 amLGA - ONT

1 stop8h 31mDelta

Mon 1/1910:30 pmONT - LGA

1 stop10h 15mDelta

Deal found 12/11

$278

Mon 3/164:55 pmLGA - ONT

1 stop8h 50mSouthwest

Sun 3/2211:35 amONT - LGA

1 stop8h 45mSouthwest

Deal found 12/10

$306

Sat 1/106:35 amLGA - ONT

1 stop8h 41mDelta

Sat 1/2412:41 pmONT - LGA

1 stop8h 00mDelta

Deal found 12/9

$278

Wed 1/143:41 pmLGA - ONT

1 stop9h 17mUnited Airlines

Sun 1/185:05 amONT - LGA

1 stop9h 22mUnited Airlines

Deal found 12/11

$347

Sun 1/116:00 amLGA - ONT

1 stop8h 31mDelta

Wed 1/1410:30 pmONT - LGA

2 stops10h 29mDelta

Deal found 12/10

$283

Thu 1/810:00 amLGA - ONT

2 stops10h 43mUnited Airlines

Thu 1/155:05 amONT - LGA

2 stops9h 08mUnited Airlines

Deal found 12/9

$355

Last-minute flights from LaGuardia to Ontario
Discover last-minute flight deals from LaGuardia to Ontario. Data last updated December 11, 2025 and is based on user searches.

Wed 12/1710:08 pmLGA - ONT

1 stop13h 45mFrontier

Wed 12/246:45 amONT - LGA

1 stop12h 15mFrontier

Deal found 12/10

$254

Mon 1/510:55 pmLGA - ONT

1 stop26h 17mFrontier

Sun 1/118:31 amONT - LGA

1 stop9h 34mFrontier

Deal found 12/10

$232

Mon 1/510:55 pmLGA - ONT

1 stop26h 17mFrontier

Fri 1/96:00 amONT - LGA

1 stop13h 00mFrontier

Deal found 12/10

$238

Wed 1/710:55 pmLGA - ONT

1 stop28h 01mFrontier

Mon 1/126:00 amONT - LGA

1 stop13h 00mFrontier

Deal found 12/10

$225

Wed 1/710:55 pmLGA - ONT

1 stop28h 01mFrontier

Fri 1/98:31 amONT - LGA

1 stop9h 34mFrontier

Deal found 12/10

$256

Fri 1/910:55 pmLGA - ONT

1 stop27h 19mFrontier

Wed 1/147:15 amONT - LGA

1 stop11h 45mFrontier

Deal found 12/10

$240

Fri 1/910:55 pmLGA - ONT

1 stop27h 19mFrontier

Sun 1/118:31 amONT - LGA

1 stop9h 34mFrontier

Deal found 12/11

$253

Mon 1/1210:55 pmLGA - ONT

1 stop27h 04mFrontier

Fri 1/166:10 amONT - LGA

1 stop12h 50mFrontier

Deal found 12/11

$252

Sun 1/183:29 pmLGA - ONT

1 stop8h 29mUnited Airlines

Wed 1/215:05 amONT - LGA

1 stop7h 41mUnited Airlines

Deal found 12/10

$243

Sun 1/1810:30 amLGA - ONT

2 stops11h 15mAmerican Airlines

Wed 1/219:59 amONT - LGA

2 stops9h 30mAmerican Airlines

Deal found 12/10

$246

Tue 1/209:00 amLGA - ONT

2 stops10h 05mAmerican Airlines

Fri 1/2311:59 pmONT - LGA

2 stops8h 56mAmerican Airlines

Deal found 12/11

$245

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 December 11, 2025.

Wed 1/1410:55 pmLGA - ONT

1 stop28h 04mFrontier

Deal found 12/11

$97

Mon 1/510:55 pmLGA - ONT

1 stop26h 17mFrontier

Deal found 12/10

$98

Wed 1/2810:09 amLGA - ONT

2 stops11h 11mAmerican Airlines

Deal found 12/10

$102

Tue 4/710:55 pmLGA - ONT

1 stop28h 04mFrontier

Deal found 12/10

$103

Sat 1/175:56 pmLGA - ONT

1 stop8h 03mFrontier

Deal found 12/10

$109

Tue 1/68:55 pmLGA - ONT

2 stops29h 19mMultiple Airlines

Deal found 12/11

$116

Wed 1/710:55 pmLGA - ONT

1 stop28h 01mFrontier

Deal found 12/11

$119

Wed 1/286:25 amLGA - ONT

3 stops30h 44mMultiple Airlines

Deal found 12/11

$123

Thu 1/296:20 amLGA - ONT

2 stops21h 00mFrontier

Deal found 12/10

$125

Wed 1/76:00 amLGA - ONT

1 stop8h 31mDelta

Deal found 12/10

$129

Find flight deals from LaGuardia to Ontario

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$225 (Trip.com)
One-way from	$97 (Super.com)
Popular in	December
Cheapest in	October
Average price	$640

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. 8% potential increase in price ($37 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 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

Thu 2/5

6:00 am-11:31 am

1 stop8h 31m

Ontario

Sun 2/8

10:30 pm-8:48 am

1 stop7h 18m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 1/9

2:59 pm-9:05 pm

1 stop9h 06m

Ontario

Sun 1/11

10:30 pm-11:59 am

2 stops10h 29m

$262

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 1/5

6:05 am-6:00 pm

2 stops14h 55m

Ontario

Thu 1/8

11:00 am-9:30 pm

1 stop7h 30m

$267

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 1/14

6:00 am-11:31 am

1 stop8h 31m

Ontario

Mon 1/19

10:30 pm-11:45 am

1 stop10h 15m

$278

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sat 1/10

6:35 am-12:16 pm

1 stop8h 41m

Ontario

Sat 1/24

12:41 pm-11:41 pm

1 stop8h 00m

$278

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sun 1/11

6:00 am-11:31 am

1 stop8h 31m

Ontario

Wed 1/14

10:30 pm-11:59 am

2 stops10h 29m

$283

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 3/16

4:55 pm-10:45 pm

1 stop8h 50m

Ontario

Sun 3/22

11:35 am-11:20 pm

1 stop8h 45m

$306

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 1/22

9:00 am-8:10 pm

2 stops14h 10m

Ontario

Tue 2/3

4:03 pm-7:20 pm

3 stops24h 17m

$308

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 1/8

7:15 am-12:47 pm

1 stop8h 32m

Ontario

Mon 1/12

6:00 am-7:17 pm

1 stop10h 17m

$347

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 1/14

3:41 pm-9:58 pm

1 stop9h 17m

Ontario

Sun 1/18

5:05 am-5:27 pm

1 stop9h 22m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New York LaGuardia Airport-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $132). Flying from New York LaGuardia Airport to Ontario in December is currently the most expensive (average of $250). 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 American 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

7.9

Good

4,252 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

7.9

Good

4,252 reviews

Southwest

7.9

Good

4,252 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

8,008 reviews

Southwest

7.9

Good

4,252 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,048 reviews

Southwest

7.9

Good

4,252 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,084 reviews

Southwest

7.9

Good

4,252 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 4 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 31m. 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 $159, was found to be the cheapest airline from New York LaGuardia Airport to Ontario.Alternate airlines to your destination round-trip include Southwest and American Airlines. Frontier is currently priced 60% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from New York LaGuardia Airport to Ontario one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $73. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from New York LaGuardia Airport to Ontario for a low price.
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 $132). Flying from New York LaGuardia Airport to Ontario in December is currently the most expensive (average of $250). 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

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Other flights to Ontario

Top 4 airlines flying from LaGuardia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$170	Average$314	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$192	Average$474	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$266	Average$397	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$276	Average$477	FlexibilityNo cancel fee	On-timeN/A

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$97+ 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 1/14. 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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Cheap 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 December 11, 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 December 11, 2025.

Find 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 December.

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 American 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?

What are the cheapest airlines to fly from New York LaGuardia Airport to Ontario one-way?

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

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Alternative routes for LaGuardia to Ontario

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

Top 4 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 December 11, 2025.