Ontario

$106+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
Apr 29 — May 63
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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 April 24, 2025.

Popular in

December

Cheapest in

September

Average price

$407

Round-trip from

$189

One-way from

$106

Good round-trip deal

$287 or less

Good one-way deal

$138 or less
Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in April 2025
From New York to Los Angeles
One-way flight from New York to Ontario (ONT)
Price to beat on a round-trip flight from New York to Ontario.
Price to beat on a one-way flight from New York to Ontario.

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 April 24, 2025.

Sat 5/249:55 pmLGA - ONT
1 stop14h 20mFrontier
Wed 5/285:21 pmONT - LGA
1 stop25h 49mFrontier
Deal found 4/21$198
Wed 4/306:59 amJFK - ONT
1 stop27h 25mFrontier
Thu 5/86:35 pmONT - JFK
1 stop7h 55mFrontier
Deal found 4/22$206
Tue 9/167:19 amEWR - ONT
1 stop9h 47mAlaska Airlines
Tue 9/233:00 pmONT - EWR
1 stop11h 59mAlaska Airlines
Deal found 4/23$262
Sat 5/241:42 pmEWR - ONT
1 stop10h 23mAmerican Airlines
Fri 5/301:14 pmONT - EWR
1 stop6h 52mAmerican Airlines
Deal found 4/23$266
Sat 5/246:00 pmJFK - ONT
Nonstop6h 11mJetBlue
Sun 5/2510:59 pmONT - JFK
Nonstop5h 20mJetBlue
Deal found 4/23$267
Tue 9/167:27 amJFK - ONT
1 stop9h 39mAlaska Airlines
Tue 9/237:17 pmONT - JFK
1 stop9h 03mAlaska Airlines
Deal found 4/23$269
Fri 7/42:59 pmLGA - ONT
1 stop9h 34mAmerican Airlines
Mon 7/712:59 amONT - LGA
1 stop9h 05mAmerican Airlines
Deal found 4/23$277
Thu 5/291:30 pmJFK - ONT
1 stop9h 03mDelta
Tue 8/1212:00 pmONT - JFK
1 stop10h 07mDelta
Deal found 4/23$282
Thu 5/294:00 pmLGA - ONT
1 stop9h 29mDelta
Wed 6/412:18 pmONT - LGA
1 stop7h 27mDelta
Deal found 4/21$282
Fri 5/306:59 pmEWR - ONT
1 stop7h 43mDelta
Wed 8/1310:59 pmONT - EWR
1 stop7h 37mDelta
Deal found 4/23$282
Wed 5/143:25 pmJFK - ONT
1 stop8h 40mAmerican Airlines
Sat 5/1710:51 amONT - JFK
2 stops9h 09mAmerican Airlines
Deal found 4/23$292
Tue 9/165:29 pmJFK - ONT
1 stop9h 30mHawaiian Airlines
Tue 9/237:17 pmONT - JFK
1 stop9h 03mHawaiian Airlines
Deal found 4/23$296

Cheapflights Fare Finder

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 April 24, 2025.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

New York

Route

Depart

Return

Price

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/30

6:59 am-7:24 am

1 stop27h 25m

Ontario

Thu 5/8

6:35 pm-5:30 am

1 stop7h 55m

$206

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sun 6/1

10:55 pm-9:12 am

1 stop13h 17m

Ontario

Tue 6/10

6:42 pm-10:10 pm

1 stop24h 28m

$206

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 9/16

7:19 am-2:06 pm

1 stop9h 47m

Ontario

Tue 9/23

3:00 pm-5:59 am

1 stop11h 59m

$262

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 5/24

1:42 pm-9:05 pm

1 stop10h 23m

Ontario

Fri 5/30

1:14 pm-11:06 pm

1 stop6h 52m

$266

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 5/28

6:00 pm-9:11 pm

Nonstop6h 11m

Ontario

Sat 5/31

10:59 pm-7:19 am

Nonstop5h 20m

$267

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 6/3

7:29 am-3:50 pm

1 stop11h 21m

Ontario

Tue 6/10

4:45 pm-6:09 am

1 stop10h 24m

$269

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 7/4

2:59 pm-9:33 pm

1 stop9h 34m

Ontario

Mon 7/7

12:59 am-1:04 pm

1 stop9h 05m

$277

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 5/29

1:30 pm-7:33 pm

1 stop9h 03m

Ontario

Wed 8/13

10:59 pm-9:48 am

1 stop7h 49m

$282

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 5/30

5:00 pm-10:29 pm

1 stop8h 29m

Ontario

Tue 8/12

10:59 pm-9:46 am

1 stop7h 47m

$282

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 5/30

6:59 pm-11:42 pm

1 stop7h 43m

Ontario

Wed 8/13

10:59 pm-9:36 am

1 stop7h 37m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 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 eDreams 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 eDreams. This is based on searches made for Ontario flights over the past month.
  • Most trusted provider: eDreams 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), eDreams 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.

Cheapflights Insights

Everything you need to know about your flight to Ontario

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 April 18, 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 18 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 cheapest airlines that fly to Ontario?

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

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 April 24, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta to Ontario have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very good

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

FAQs about flying to Ontario

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 $28, while round-trip flights cost around $37.

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

    A round-trip flight to Ontario will typically cost around $131, however they can be found for as little as $37.

  • 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 0 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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