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Cheap flights from Ontario to New York from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to New York departing on 7/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:34 pm - 2:57 pm
ONT
-
EWR
20h 23m
1 stop
Multiple Airlines Logo
3:52 pm - 3:09 pm
EWR
-
ONT
26h 17m
1 stop
$270Multiple Airlines
Wed, Aug 19 - Tue, Sep 1
Multiple Airlines Logo
8:06 pm - 11:20 am
ONT
-
EWR
12h 14m
1 stop
Multiple Airlines Logo
10:29 pm - 8:04 am
EWR
-
ONT
36h 35m
2 stops
$296Multiple Airlines
Tue, May 19 - Thu, May 28
Multiple Airlines Logo
8:06 pm - 11:20 am
ONT
-
EWR
12h 14m
1 stop
Multiple Airlines Logo
10:29 pm - 3:44 pm
EWR
-
ONT
44h 15m
2 stops
$304Multiple Airlines
Wed, May 6 - Sun, May 10
Delta Logo
10:59 pm - 11:07 am
ONT
-
EWR
9h 08m
1 stop
Delta Logo
7:00 am - 12:29 pm
EWR
-
ONT
8h 29m
1 stop
$307Delta
Tue, Aug 25 - Sun, Aug 30
American Airlines Logo
8:00 pm - 8:58 am
ONT
-
EWR
9h 58m
2 stops
American Airlines Logo
8:00 am - 1:27 pm
EWR
-
ONT
8h 27m
1 stop
$312American Airlines
Wed, Oct 21 - Wed, Oct 28
Frontier Logo
8:30 am - 12:32 pm
ONT
-
EWR
25h 02m
1 stop
Frontier Logo
10:29 pm - 11:49 pm
EWR
-
ONT
28h 20m
2 stops
$315Frontier
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
8:30 am - 12:32 pm
ONT
-
EWR
25h 02m
1 stop
Multiple Airlines Logo
5:01 pm - 10:05 am
EWR
-
ONT
20h 04m
2 stops
$319Multiple Airlines
Tue, May 5 - Mon, May 11
Multiple Airlines Logo
8:06 pm - 11:20 am
ONT
-
EWR
12h 14m
1 stop
Multiple Airlines Logo
11:30 am - 8:20 am
EWR
-
ONT
23h 50m
2 stops
$321Multiple Airlines
Tue, May 5 - Fri, May 8
Multiple Airlines Logo
8:06 pm - 11:20 am
ONT
-
EWR
12h 14m
1 stop
Multiple Airlines Logo
5:55 am - 10:05 am
EWR
-
ONT
31h 10m
2 stops
$322Multiple Airlines
Tue, May 19 - Thu, May 28
Multiple Airlines Logo
8:06 pm - 11:20 am
ONT
-
EWR
12h 14m
1 stop
Multiple Airlines Logo
5:55 am - 8:04 am
EWR
-
ONT
29h 09m
2 stops
$324Multiple Airlines
Tue, May 19 - Fri, May 29

United Airlines flights from Ontario to Newark Airport

Our best United Airlines deals on Ontario to Newark Airport flight tickets
United Airlines
May 27
ONT1:18 pmOntario
8h 46m
1 stop
EWR1:04 amNewark
May 29
EWR6:00 amNewark
9h 12m
1 stop
ONT12:12 pmOntario
$334
United Airlines
May 19
ONT6:59 pmOntario
9h 50m
1 stop
EWR7:49 amNewark
May 29
EWR3:41 pmNewark
8h 01m
1 stop
ONT8:42 pmOntario
$335
United Airlines
Aug 5
ONT1:18 pmOntario
7h 26m
1 stop
EWR11:44 pmNewark
Aug 8
EWR4:40 pmNewark
9h 11m
1 stop
ONT10:51 pmOntario
$367

Delta flights from Ontario to Newark Airport

Our best Delta deals on Ontario to Newark Airport flight tickets
Delta
Aug 25
ONT10:59 pmOntario
9h 08m
1 stop
EWR11:07 amNewark
Aug 30
EWR7:00 amNewark
8h 29m
1 stop
ONT12:29 pmOntario
$307
Delta
Aug 21
ONT5:05 pmOntario
10h 03m
1 stop
EWR6:08 amNewark
Aug 29
EWR6:00 amNewark
8h 04m
1 stop
ONT11:04 amOntario
$333
Delta
Aug 20
ONT5:05 pmOntario
10h 03m
1 stop
EWR6:08 amNewark
Sep 1
EWR12:05 pmNewark
8h 56m
1 stop
ONT6:01 pmOntario
$353

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Newark Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 24, 2026.
Use the filters below to find and compare flights from Ontario to Newark Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 8/19

3:34 pm-2:57 pm

1 stop20h 23m

Newark

Tue 9/1

3:52 pm-3:09 pm

1 stop26h 17m

$270

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5/19

8:06 pm-11:20 am

1 stop12h 14m

Newark

Thu 5/28

10:29 pm-8:04 am

2 stops36h 35m

$296

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 5/6

8:06 pm-11:20 am

1 stop12h 14m

Newark

Sun 5/10

10:29 pm-3:44 pm

2 stops44h 15m

$304
Quickest round-trip

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 8/25

10:59 pm-11:07 am

1 stop9h 08m

Newark

Sun 8/30

7:00 am-12:29 pm

1 stop8h 29m

$307

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 10/21

8:00 pm-8:58 am

2 stops9h 58m

Newark

Wed 10/28

8:00 am-1:27 pm

1 stop8h 27m

$312

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5/5

8:30 am-12:32 pm

1 stop25h 02m

Newark

Tue 5/12

10:29 pm-11:49 pm

2 stops28h 20m

$315

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5/5

8:30 am-12:32 pm

1 stop25h 02m

Newark

Mon 5/11

5:01 pm-10:05 am

2 stops20h 04m

$319

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5/5

8:06 pm-11:20 am

1 stop12h 14m

Newark

Fri 5/8

11:30 am-8:20 am

2 stops23h 50m

$321

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5/19

8:06 pm-11:20 am

1 stop12h 14m

Newark

Thu 5/28

5:55 am-10:05 am

2 stops31h 10m

$322

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5/19

8:06 pm-11:20 am

1 stop12h 14m

Newark

Fri 5/29

5:55 am-8:04 am

2 stops29h 09m

$324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

How to get the cheapest flight ticket from Ontario to Newark Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ontario and Newark Airport?

What is the cheapest month to fly to Newark Airport?

The cheapest month to fly to Newark Airport from Ontario is in August. Flight prices, which tend to average around $354, are often lower during this time because this is during the off-season. If you don’t want to visit Newark Airport in August, then you should wait until June to fly from Ontario, when ticket prices are also cheap, with an average price of $356.

What is the cheapest day to depart on your flight to Newark Airport?

The cheapest day to depart on your flight to Newark Airport is on a Wednesday when prices can be found for as low as $348. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Newark Airport for around $449.

What is the cheapest time of day to depart on your flight to Newark Airport?

The cheapest time of day to fly to Newark Airport is at noon when flights can be purchased for as low as $344. Flights in the afternoon are often more expensive with an average ticket price of $414.

How far in advance should I book a flight from Ontario to Newark Airport?

You are more likely to see cheaper flights to Newark Airport from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Newark Airport for around $458 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Newark Airport from Ontario for as low as $277 on momondo.

How have Ontario to Newark Airport flight prices changed over time?

As of April 2026, prices for Ontario to Newark Airport flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Newark Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Newark Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Newark Airport (ONT to EWR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Newark Airport

Fastest flight time

7h 30m

Direct flights

None
The fastest flight from Ontario to Newark Airport takes 7h 30m
There are no direct flights from Ontario to Newark Airport. There are no popular flight routes from Ontario to Newark Airport.
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Frequently asked questions about flying from Ontario to Newark Airport

  • How far is Ontario to Newark by plane?

    A flight from Ontario to Newark will travel around 2403.8 mi. A reasonable flight in good conditions will take 7h 30m.

  • When did momondo last update prices for flights from Ontario Airport to Newark Airport?

    Prices for flights from Ontario Airport to Newark Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Newark Airport?

  • How old do you have to be to fly from Ontario Airport to Newark Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Newark Airport.

  • What documentation or ID do you need to fly to Newark Airport?

    The travel and health documents required for your trip to Newark Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Newark Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Newark Airport?

Best airlines flying from Ontario to Newark Airport

Compare and see reviews for airlines that fly from Ontario to Newark Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $67Free CancellationRating
6.3
8,636 reviews
Search Spirit Airlines flights
JetBluePriceFrom $257Free CancellationRating
7.2
2,953 reviews
Search JetBlue flights
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
DeltaPriceFrom $286Free CancellationRating
7.9
8,451 reviews
Search Delta flights
United AirlinesPriceFrom $307Free CancellationRating
7.4
9,643 reviews
Search United Airlines flights

  • United Airlines Flights From Ontario to Newark Airport

    The lowest priced United Airlines flight from Ontario to Newark Airport from the last 72 hours was $307. Generally, United Airlines has 7 flights on this route every week with an average price of $450. United Airlines is rated 7.4/10 by our users.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Seaside Heights
Queens
Bronx
Yonkers
Bethlehem
East Rutherford
Asbury Park
Jim Thorpe
Point Pleasant Beach
Beach Haven
Long Branch
Wayne
Stamford
Spring Lake
Tannersville
Woodbridge
Parsippany
East Stroudsburg
Secaucus
Mount Laurel

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to New York?

Finding the right flight to New York from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to New York quick and easy, saving you time and money.

Can I find flights from Ontario to New York with flexible booking policies on momondo?

momondo does allow users to show only those flights to New York from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to New York?

Once you have performed a search for Ontario to New York flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to New York right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to New York now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to New York and let you know when they change.

An easier way to manage your Newark Airport trip

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