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Ontario

$118+ Cheap flights to Ontario

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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
Mar 2 — Mar 91
Sun 3/2
Sun 3/9
1 adult, Economy
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Flights to Ontario in 2025

Find the latest flights to Ontario in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on February 25, 2025.

Popular in

December

Cheapest in

January

Average price

$366

Round-trip from

$155

One-way from

$118

Good round-trip deal

$287 or less

Good one-way deal

$158 or less
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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From New York to Los Angeles
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One-way flight from New York to Ontario (ONT)
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Price to beat on a round-trip flight from New York to Ontario.
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Price to beat on a one-way flight from New York to Ontario.
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Find flight deals to Ontario

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on February 25, 2025.

Tue 3/252:35 pmJFK - ONT
1 stop10h 52mAmerican Airlines
Wed 3/269:32 amONT - JFK
1 stop8h 03mAmerican Airlines
Deal found 2/25$245
Wed 4/306:15 pmJFK - ONT
Nonstop6h 10mJetBlue
Mon 5/1210:40 pmONT - JFK
Nonstop5h 20mJetBlue
Deal found 2/24$257
Thu 4/1010:59 pmLGA - ONT
1 stop12h 20mFrontier
Mon 4/149:31 amONT - LGA
1 stop9h 29mFrontier
Deal found 2/24$262
Wed 4/237:20 amJFK - ONT
1 stop11h 12mAlaska Airlines
Tue 4/296:00 amONT - JFK
1 stop10h 08mAlaska Airlines
Deal found 2/25$277
Tue 4/156:00 amLGA - ONT
1 stop7h 57mDelta
Tue 4/2210:15 pmONT - LGA
1 stop6h 54mDelta
Deal found 2/24$277
Tue 4/157:00 pmEWR - ONT
1 stop7h 41mDelta
Wed 4/1610:15 pmONT - EWR
1 stop7h 44mDelta
Deal found 2/24$277
Wed 4/97:00 amJFK - ONT
1 stop8h 26mDelta
Tue 4/2210:15 pmONT - JFK
1 stop8h 33mDelta
Deal found 2/25$282
Mon 3/244:48 pmEWR - ONT
1 stop8h 12mAmerican Airlines
Tue 4/112:50 pmONT - EWR
1 stop7h 03mAmerican Airlines
Deal found 2/24$288
Wed 3/124:59 pmLGA - ONT
1 stop8h 28mAmerican Airlines
Thu 4/36:00 amONT - LGA
1 stop7h 04mAmerican Airlines
Deal found 2/23$302
Wed 3/123:40 pmLGA - ONT
2 stops10h 00mSouthwest
Thu 4/311:35 amONT - LGA
1 stop8h 25mSouthwest
Deal found 2/23$322
Fri 3/217:59 amJFK - ONT
1 stop10h 05mFrontier
Mon 3/2410:44 amONT - JFK
1 stop16h 46mFrontier
Deal found 2/25$323
Tue 9/163:45 pmEWR - ONT
1 stop9h 52mAlaska Airlines
Mon 9/226:00 pmONT - EWR
1 stop18h 32mAlaska Airlines
Deal found 2/25$328

Find flights to Ontario within your budget

Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on February 25, 2025.

Fly from

New York

Route

Depart

Return

Price

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 3/18

7:59 am-3:04 pm

1 stop10h 05m

Ontario

Wed 4/2

2:43 pm-5:30 am

1 stop11h 47m

$178

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/30

6:15 pm-9:25 pm

Nonstop6h 10m

Ontario

Mon 5/12

10:40 pm-7:00 am

Nonstop5h 20m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 4/10

10:59 pm-8:19 am

1 stop12h 20m

Ontario

Mon 4/14

9:31 am-10:00 pm

1 stop9h 29m

$262

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/23

7:20 am-3:32 pm

1 stop11h 12m

Ontario

Tue 4/29

6:00 am-7:08 pm

1 stop10h 08m

$277

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 4/15

6:00 am-10:57 am

1 stop7h 57m

Ontario

Tue 4/22

10:15 pm-8:09 am

1 stop6h 54m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 4/15

7:00 pm-11:41 pm

1 stop7h 41m

Ontario

Wed 4/16

10:15 pm-8:59 am

1 stop7h 44m

$277

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/9

7:00 am-12:26 pm

1 stop8h 26m

Ontario

Tue 4/22

10:15 pm-9:48 am

1 stop8h 33m

$282

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Mon 3/24

6:30 am-11:59 am

1 stop8h 29m

Ontario

Tue 4/1

12:50 pm-11:00 pm

1 stop7h 10m

$288

NewarkOntario

EWR - ONT

EWRONT

Newark

Mon 3/24

4:48 pm-10:00 pm

1 stop8h 12m

Ontario

Tue 4/1

12:50 pm-10:53 pm

1 stop7h 03m

$288

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 3/12

4:59 pm-10:27 pm

1 stop8h 28m

Ontario

Thu 4/3

6:00 am-4:04 pm

1 stop7h 04m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 38 results
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Compare providers for flights 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 to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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: Out of all of the providers offering Ontario flight deals, Cheapflights users have found FlightHub to have the most accurate pricing on Cheapflights vs. their site about >95% of the time, users can find the same price on Ontario flight deals on Cheapflights and FlightHub. This is based on searches made for Ontario flights over the past month.
  • Most trusted provider: FlightHub is the most trusted provider by Cheapflights users offering Ontario flight deals. With a user feedback rating of 3 out of 3 stars (3 being the best), FlightHub has received the most positive sentiment from Cheapflights users searching for flights to Ontario. This is based on data collected from Cheapflights searches made over the past month.

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario 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.

Travel insights for flights to Ontario

Get recent, data-driven insights about flights to Ontario including ideal travel times, pricing trends, and more.

When is the best time to book a flight to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from New York to Ontario. Price data was last updated on February 14, 2025.

The price you pay for your flight to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Ontario?

On average, a flight from New York to Ontario takes 8 hours 34 minutes. Flights to Ontario from other popular cities in USA will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Ontario?

Use this chart to determine the cheapest time to fly round-trip from New York to Ontario. Price data was last updated on December 16, 2024.

Users looking for the lowest fares to Ontario should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travelers will want to avoid Sunday at noon, when prices are usually at their highest.

What are the most popular airlines that fly to Ontario?

The most popular airlines flying from New York to Ontario are American Airlines, JetBlue and Delta.

American Airlines

American Airlines

From $257

JetBlue

JetBlue

From $252

Delta

Delta

From $143

United Airlines

United Airlines

From $227

What are the cheapest airlines that fly to Ontario?

The cheapest airlines flying from New York to Ontario are Frontier, Delta and Spirit Airlines.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated February 25, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta to Ontario have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,374 reviews

Comfort

8.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,374 reviews
Southwest
8.1
Very good
4,374 reviews

Comfort

8.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,712 reviews
Southwest
8.1
Very good
4,374 reviews

Comfort

8.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,165 reviews
Southwest
8.1
Very good
4,374 reviews

Comfort

8.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Hawaiian Airlines
7.9
Good
2,312 reviews
Southwest
8.1
Very good
4,374 reviews

Comfort

8.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

JetBlue
7.4
Good
3,052 reviews
Southwest
8.1
Very good
4,374 reviews

Comfort

8.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Ontario, CA airport overview

At just 2.3 miles (3.7km) east of downtown Ontario, Ontario International Airport (ONT) is a small but well-equipped alternative to Los Angeles Airport and John Wayne Airport for passengers flying to California.

The number of flights to Ontario International Airport has been declining steadily in recent years (there were 4.8 million passengers in 2010, but the terminals are built to handle twice that) – some say due to the lack of direct flights to major destinations, in comparison with other airports nearby. However, those who use the airport agree that it is a convenient alternative, well connected to nearby air fields and towns, easy to get in and out of, clean and with good basic facilities.

  • What airport do you fly into for flights to Ontario?

    If you book a flight to Ontario, you will be flying into Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • Can I find cheaper flights to Ontario if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, Spirit Airlines is rated the highest out of the airlines that fly to Ontario.

  • What is the cheapest airport to fly to in Ontario?

    Ontario is currently the cheapest airport to fly to in Ontario. One-way flights to Ontario typically cost $19, while round-trip flights cost around $27.

  • How much is a round-trip flight to Ontario?

    A round-trip flight to Ontario will typically cost around $267, however they can be found for as little as $27.

  • Where does the fastest flight to Ontario depart from?

    For those looking to save time traveling to Ontario, Las Vegas Harry Reid Intl offers the quickest one-way flight (1 hour 3 minutes).

  • Does Ontario have rental cars?

    Yes. Those touching down at Ontario can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Ontario?

    Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 mi away from Ontario).

See more FAQs

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