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. On average, Ontario has 1 flight from New York per day from 7 airlines.

What is the cheapest month to fly to Ontario?

Currently, the cheapest month for flights to Ontario is August . The most expensive month for flights is March . The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

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 $33.

How much is a round-trip flight to Ontario?

A round-trip flight to Ontario will typically cost around $117, however they can be found for as little as $33.

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 5 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).

$111+ Flights to Ontario, California

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Flights to Ontario in 2025

Popular in	December
Cheapest in	September
Average price	$383
Round-trip from	$175
One-way from	$111
Good round-trip deal	$297 or less
Good one-way deal	$173 or less

Highest demand for flights based on searches. 7% potential increase in price ($27 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Tue 7/296:59 amJFK - ONT

1 stop12h 21mFrontier

Wed 8/67:22 pmONT - JFK

1 stop7h 08mFrontier

Deal found 6/12$234

Fri 8/296:30 amLGA - ONT

2 stops9h 10mSouthwest

Sun 8/318:00 amONT - LGA

2 stops9h 05mSouthwest

Deal found 6/11$249

Tue 9/166:35 pmJFK - ONT

Nonstop5h 54mJetBlue

Tue 9/2310:56 pmONT - JFK

Nonstop5h 22mJetBlue

Deal found 6/12$257

Tue 9/163:00 pmJFK - ONT

1 stop10h 41mDelta

Mon 9/2210:59 pmONT - JFK

1 stop7h 46mDelta

Deal found 6/10$267

Tue 7/292:55 pmLGA - ONT

1 stop9h 43mAmerican Airlines

Wed 8/610:29 pmONT - LGA

1 stop7h 35mAmerican Airlines

Deal found 6/11$267

Fri 7/411:55 amEWR - ONT

1 stop8h 45mUnited Airlines

Mon 7/76:28 pmONT - EWR

1 stop8h 08mUnited Airlines

Deal found 6/10$267

Wed 7/235:29 amEWR - ONT

1 stop7h 32mAmerican Airlines

Wed 7/307:05 pmONT - EWR

2 stops11h 49mAmerican Airlines

Deal found 6/12$272

Fri 9/1210:59 pmLGA - ONT

1 stop27h 51mFrontier

Sun 9/146:11 pmONT - LGA

1 stop24h 55mFrontier

Deal found 6/10$274

Wed 7/26:53 amEWR - ONT

1 stop14h 45mMultiple Airlines

Wed 7/97:00 amONT - EWR

1 stop20h 05mMultiple Airlines

Deal found 6/12$274

Tue 7/225:00 pmLGA - ONT

1 stop8h 27mDelta

Tue 7/2910:05 pmONT - LGA

1 stop8h 41mDelta

Deal found 6/11$277

Tue 9/167:19 amEWR - ONT

1 stop9h 50mAlaska Airlines

Tue 9/233:04 pmONT - EWR

1 stop11h 55mAlaska Airlines

Deal found 6/10$277

Sat 9/201:15 pmEWR - ONT

1 stop9h 27mDelta

Wed 9/2412:00 pmONT - EWR

1 stop8h 00mDelta

Deal found 6/10$282

Best flights to Ontario
Discover carefully curated flight deals to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Tue 7/296:59 amJFK - ONT

1 stop12h 21mFrontier

Wed 8/67:22 pmONT - JFK

1 stop7h 08mFrontier

Deal found 6/11$234

Fri 8/296:30 amLGA - ONT

2 stops9h 10mSouthwest

Sun 8/318:00 amONT - LGA

2 stops9h 05mSouthwest

Deal found 6/11$249

Tue 9/166:35 pmJFK - ONT

Nonstop5h 54mJetBlue

Tue 9/2310:56 pmONT - JFK

Nonstop5h 22mJetBlue

Deal found 6/12$257

Tue 7/292:55 pmLGA - ONT

1 stop9h 43mAmerican Airlines

Wed 8/610:29 pmONT - LGA

1 stop7h 35mAmerican Airlines

Deal found 6/11$267

Fri 7/411:55 amEWR - ONT

1 stop8h 45mUnited Airlines

Mon 7/76:28 pmONT - EWR

1 stop8h 08mUnited Airlines

Deal found 6/10$267

Wed 7/26:53 amEWR - ONT

1 stop14h 45mMultiple Airlines

Wed 7/97:00 amONT - EWR

1 stop20h 05mMultiple Airlines

Deal found 6/12$274

Tue 9/166:00 amJFK - ONT

1 stop8h 24mDelta

Tue 9/235:51 pmONT - JFK

1 stop9h 26mDelta

Deal found 6/12$277

Tue 9/167:19 amEWR - ONT

1 stop9h 50mAlaska Airlines

Tue 9/233:04 pmONT - EWR

1 stop11h 55mAlaska Airlines

Deal found 6/10$277

Wed 7/235:29 amEWR - ONT

1 stop7h 32mAmerican Airlines

Wed 7/307:05 pmONT - EWR

2 stops11h 49mAmerican Airlines

Deal found 6/12$272

Fri 9/1210:59 pmLGA - ONT

1 stop27h 51mFrontier

Sun 9/146:11 pmONT - LGA

1 stop24h 55mFrontier

Deal found 6/10$274

Tue 7/225:00 pmLGA - ONT

1 stop8h 27mDelta

Tue 7/2910:05 pmONT - LGA

1 stop8h 41mDelta

Deal found 6/11$277

Fri 11/144:54 pmJFK - ONT

1 stop9h 36mAlaska Airlines

Tue 11/186:00 amONT - JFK

1 stop10h 29mAlaska Airlines

Deal found 6/12$286

Last-minute flights to Ontario
Discover last-minute flight deals to Ontario. Data last updated June 12, 2025 and is based on user searches.

Tue 6/1710:59 pmLGA - ONT

1 stop13h 02mFrontier

Mon 6/2312:59 amONT - LGA

1 stop18h 15mFrontier

Deal found 6/12$340

Tue 6/176:59 amJFK - ONT

1 stop12h 19mFrontier

Tue 6/245:13 pmONT - JFK

1 stop9h 17mFrontier

Deal found 6/12$344

Tue 6/176:53 amEWR - ONT

1 stop12h 25mMultiple Airlines

Tue 6/245:13 pmONT - EWR

1 stop9h 35mMultiple Airlines

Deal found 6/10$375

Tue 6/174:49 pmEWR - ONT

1 stop9h 13mAmerican Airlines

Tue 7/812:55 pmONT - EWR

1 stop7h 53mAmerican Airlines

Deal found 6/9$450

Tue 6/174:30 pmEWR - ONT

1 stop7h 34mUnited Airlines

Tue 7/16:28 pmONT - EWR

1 stop8h 08mUnited Airlines

Deal found 6/10$520

Thu 6/195:00 pmJFK - ONT

1 stop7h 33mAmerican Airlines

Mon 6/2311:59 pmONT - JFK

1 stop8h 52mAmerican Airlines

Deal found 6/11$469

Thu 6/199:55 pmLGA - ONT

1 stop14h 00mSouthwest

Thu 6/2610:45 amONT - LGA

2 stops9h 40mSouthwest

Deal found 6/12$475

Fri 6/201:29 pmJFK - ONT

1 stop9h 25mDelta

Wed 7/1611:25 amONT - JFK

1 stop9h 58mDelta

Deal found 6/11$373

Fri 6/203:00 pmLGA - ONT

1 stop7h 54mDelta

Fri 7/411:49 amONT - LGA

1 stop8h 35mDelta

Deal found 6/11$373

Fri 6/203:25 pmLGA - ONT

1 stop10h 01mUnited Airlines

Mon 6/307:00 amONT - LGA

1 stop7h 27mUnited Airlines

Deal found 6/9$448

Sat 6/216:00 amEWR - ONT

1 stop7h 38mDelta

Mon 6/305:08 pmONT - EWR

1 stop10h 05mDelta

Deal found 6/11$440

Sat 6/2111:01 amEWR - ONT

2 stops15h 49mFrontier

Tue 7/15:21 pmONT - EWR

2 stops13h 48mFrontier

Deal found 6/10$489

One-way flights to Ontario
Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Wed 6/256:53 amEWR - ONT

1 stop17h 58mMultiple Airlines

Deal found 6/11$111

Mon 8/186:59 amJFK - ONT

1 stop7h 54mFrontier

Deal found 6/10$124

Wed 10/84:29 pmEWR - ONT

1 stop10h 30mHawaiian Airlines

Deal found 6/12$128

Tue 9/97:29 amJFK - ONT

1 stop9h 40mAlaska Airlines

Deal found 6/11$134

Tue 7/224:00 pmLGA - ONT

1 stop9h 34mAmerican Airlines

Deal found 6/11$134

Wed 7/235:29 amEWR - ONT

1 stop7h 32mAmerican Airlines

Deal found 6/12$134

Wed 9/247:19 amEWR - ONT

1 stop9h 50mAlaska Airlines

Deal found 6/12$135

Tue 9/166:35 pmJFK - ONT

Nonstop5h 54mJetBlue

Deal found 6/10$139

Fri 7/43:00 pmLGA - ONT

1 stop10h 14mDelta

Deal found 6/10$139

Fri 7/46:00 amEWR - ONT

1 stop7h 20mDelta

Deal found 6/10$139

Wed 9/247:29 amJFK - ONT

1 stop9h 40mHawaiian Airlines

Deal found 6/12$142

Sat 7/122:52 pmJFK - ONT

1 stop10h 42mAmerican Airlines

Deal found 6/11$143

Cheapflights Fare Finder

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

Fly from

Route

Depart

Return

Price

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 7/29

6:59 am-4:20 pm

1 stop12h 21m

Ontario

Wed 8/6

7:22 pm-5:30 am

1 stop7h 08m

$234

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 8/29

6:30 am-12:40 pm

2 stops9h 10m

Ontario

Sun 8/31

8:00 am-8:05 pm

2 stops9h 05m

$249

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 9/16

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

Tue 9/23

10:56 pm-7:18 am

Nonstop5h 22m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 7/29

2:55 pm-9:38 pm

1 stop9h 43m

Ontario

Wed 8/6

10:29 pm-9:04 am

1 stop7h 35m

$267

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 7/4

11:55 am-5:40 pm

1 stop8h 45m

Ontario

Mon 7/7

6:28 pm-5:36 am

1 stop8h 08m

$267

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 7/23

5:29 am-10:01 am

1 stop7h 32m

Ontario

Wed 7/30

7:05 pm-9:54 am

2 stops11h 49m

$272

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 7/2

6:53 am-6:38 pm

1 stop14h 45m

Ontario

Wed 7/9

7:00 am-6:05 am

1 stop20h 05m

$274

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 9/12

10:59 pm-11:50 pm

1 stop27h 51m

Ontario

Sun 9/14

6:11 pm-10:06 pm

1 stop24h 55m

$274

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 9/16

6:00 am-11:24 am

1 stop8h 24m

Ontario

Tue 9/23

10:59 pm-11:13 am

1 stop9h 14m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 9/16

7:19 am-2:09 pm

1 stop9h 50m

Ontario

Tue 9/23

3:04 pm-5:59 am

1 stop11h 55m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 34 results

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?

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 26 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?

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.

What are the cheapest airlines that fly to Ontario?

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

Rainfall in Ontario 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

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

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.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,287 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,950 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,494 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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. On average, Ontario has 1 flight from New York per day from 7 airlines.
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 $33.
How much is a round-trip flight to Ontario?
A round-trip flight to Ontario will typically cost around $117, however they can be found for as little as $33.
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 5 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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$111+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 June 12, 2025.

Popular in

Cheapest in

Average price

Round-trip from

One-way from

Good round-trip deal

Good one-way deal

Find flight deals to Ontario

Cheapest flights to OntarioExplore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on June 12, 2025.

Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on June 12, 2025.

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 June 12, 2025.

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

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.

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 June 9, 2025.

How long is the flight to Ontario?

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.

What are the most popular airlines that fly to Ontario?

What are the cheapest airlines that fly to Ontario?

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

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.

FAQs about flying to Ontario

Ontario, CA airport overview

What airport do you fly into for flights to Ontario?

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

What is the best airline to fly to Ontario?

What is the cheapest airport to fly to in Ontario?

How much is a round-trip flight to Ontario?

Where does the fastest flight to Ontario depart from?

Does Ontario have rental cars?

Are there hotels close 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.

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Some of the lowest fares we’ve come across for flights to Ontario.

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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 June 12, 2025.