$128+ Cheap flights from Ontario (ONT) to Newark (EWR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Newark with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Newark
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to NewarkExplore the most affordable flight options available from Ontario to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
Explore the most affordable flight options available from Ontario to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:03 pm -
1 stop13h 47m
Thu 10/221:45 pm -
1 stop8h 20m
Deal found 8/31![Frontier logo]()
$246
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:46 pm -
1 stop13h 49m
Thu 10/221:45 pm -
1 stop8h 20m
Deal found 8/31![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:46 pm -
1 stop13h 49m
Thu 10/11:30 pm -
1 stop8h 09m
Deal found 9/2![Frontier logo]()
$293
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:03 pm -
1 stop13h 47m
Fri 10/231:45 pm -
1 stop8h 23m
Deal found 9/3![Frontier logo]()
$309
This Expedia deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:47 am -
1 stop9h 42m
Thu 10/11:30 pm -
1 stop8h 09m
Deal found 9/1![Multiple Airlines logo]()
$314
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:03 pm -
1 stop13h 47m
Thu 10/221:45 pm -
1 stop8h 20m
Deal found 9/5![Frontier logo]()
$315
This Frontier deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:46 pm -
1 stop13h 49m
Mon 9/281:30 pm -
1 stop8h 09m
Deal found 9/1![Frontier logo]()
$317
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Thu 9/171:30 pm -
1 stop8h 09m
Deal found 8/31![Frontier logo]()
$318
This Frontier deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:46 pm -
1 stop13h 49m
Thu 10/11:30 pm -
1 stop8h 09m
Deal found 9/1![Frontier logo]()
$319
This Orbitz deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Tue 9/226:55 am -
1 stop13h 23m
Deal found 8/31![Multiple Airlines logo]()
$325
This Booking.com deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:03 pm -
1 stop13h 47m
Fri 10/235:05 pm -
1 stop9h 49m
Deal found 8/31![Multiple Airlines logo]()
$326
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Mon 9/211:30 pm -
1 stop8h 09m
Deal found 8/31![Frontier logo]()
$329
Best flights from Ontario to NewarkDiscover carefully curated flight deals from Ontario to Newark that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Ontario to Newark that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:18 pm -
1 stop7h 42m
Sun 11/225:45 pm -
1 stop9h 04m
Deal found 9/3![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:59 pm -
1 stop9h 31m
Mon 11/99:35 am -
1 stop10h 28m
Deal found 9/3![Alaska Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:24 pm -
1 stop8h 30m
Sat 10/31:22 pm -
1 stop10h 36m
Deal found 9/4![United Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/217:00 am -
1 stop7h 40m
Wed 1/276:00 am -
1 stop8h 27m
Deal found 8/31![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:14 pm -
1 stop18h 48m
Tue 9/296:55 am -
1 stop13h 23m
Deal found 8/31![Alaska Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/196:10 pm -
1 stop8h 48m
Sat 2/275:41 pm -
1 stop9h 18m
Deal found 8/31![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:35 pm -
1 stop6h 51m
Sun 11/16:00 am -
1 stop8h 06m
Deal found 9/1![Delta logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:47 am -
1 stop9h 42m
Wed 9/307:20 am -
1 stop9h 56m
Deal found 9/3![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop7h 25m
Sun 11/225:45 pm -
1 stop9h 04m
Deal found 9/3![Delta logo]()
$479
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:04 pm -
1 stop7h 46m
Wed 9/236:00 am -
1 stop8h 09m
Deal found 9/4![Delta logo]()
$509
This Delta deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:04 pm -
1 stop7h 46m
Mon 10/55:59 pm -
1 stop8h 48m
Deal found 9/2![Delta logo]()
$519
This Delta deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:15 pm -
1 stop9h 45m
Sun 10/46:00 am -
1 stop8h 09m
Deal found 9/2![Delta logo]()
$519
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated September 5, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Thu 9/171:30 pm -
1 stop8h 09m
Deal found 8/31![Frontier logo]()
$318
This Orbitz deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Tue 9/226:55 am -
1 stop13h 23m
Deal found 8/31![Multiple Airlines logo]()
$325
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Mon 9/211:30 pm -
1 stop8h 09m
Deal found 8/31![Frontier logo]()
$329
This Frontier deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:46 pm -
1 stop13h 49m
Thu 10/11:30 pm -
1 stop8h 09m
Deal found 9/2![Frontier logo]()
$293
This Frontier deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:46 pm -
1 stop13h 49m
Mon 9/281:30 pm -
1 stop8h 09m
Deal found 9/1![Frontier logo]()
$317
This Expedia deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:47 am -
1 stop9h 42m
Thu 10/11:30 pm -
1 stop8h 09m
Deal found 9/1![Multiple Airlines logo]()
$314
This Frontier deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:46 pm -
1 stop13h 49m
Thu 10/11:30 pm -
1 stop8h 09m
Deal found 9/1![Frontier logo]()
$319
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:46 pm -
1 stop13h 49m
Thu 10/221:45 pm -
1 stop8h 20m
Deal found 8/31![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:03 pm -
1 stop13h 47m
Thu 10/221:45 pm -
1 stop8h 20m
Deal found 8/31![Frontier logo]()
$246
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:03 pm -
1 stop13h 47m
Fri 10/231:45 pm -
1 stop8h 23m
Deal found 9/3![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:03 pm -
1 stop13h 47m
Thu 10/221:45 pm -
1 stop8h 20m
Deal found 9/5![Frontier logo]()
$315
This Booking.com deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:03 pm -
1 stop13h 47m
Fri 10/235:05 pm -
1 stop9h 49m
Deal found 8/31![Multiple Airlines logo]()
$326
One-way flights from Ontario to NewarkSearch for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Super.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:46 pm -
1 stop13h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:46 pm -
1 stop13h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$129
This Booking.com deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:03 pm -
1 stop13h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$130
This Jetabroad deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:03 pm -
1 stop13h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Frontier logo]()
$133
This Super.com deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:11 pm -
1 stop13h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$153
This SmartFares deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:59 pm -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$166
Find flight deals from Ontario to Newark
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Newark (EWR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Frontier) |
One-way from | $128 (Super.com) |
Popular in | July |
Cheapest in | October |
Average price | $536 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Newark 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, Cheapflights users made 7,457,451 searches. Data last updated September 5, 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
Cheapest round-trip
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Sat 1/30
4:16 pm-6:53 am
1 stop11h 37m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$190
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Wed 12/2
12:00 pm-11:59 pm
1 stop8h 59m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$200
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Sat 10/3
1:04 pm-11:50 pm
1 stop7h 46m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$210
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Thu 9/24
12:19 pm-1:12 am
1 stop9h 53m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$213
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Sat 10/10
6:00 am-4:49 pm
1 stop7h 49m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$240
Quickest round-trip
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Fri 10/30
7:07 am-5:29 pm
1 stop7h 22m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$240
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Mon 11/23
1:29 pm-12:55 am
1 stop8h 26m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$255
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Sat 10/17
7:00 am-7:30 pm
1 stop9h 30m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$255
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Fri 1/8
11:20 am-11:22 pm
1 stop9h 02m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$255
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Tue 9/29
6:00 am-6:39 pm
1 stop9h 39m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$255
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario to Newark
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 Ontario to Newark in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Newark Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Newark Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Newark Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Newark Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Ontario-Newark Airport 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 Ontario to Newark
Have a flexible travel schedule? Discover the best time to fly to Newark from Ontario with our price prediction graph.
ONT-EWR
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 Ontario to Newark Airport
How far ahead should I book a flight from Ontario to Newark Airport?
Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Newark Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Newark Airport?
Currently, October is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $392). Flying from Ontario to Newark Airport in July is currently the most expensive (average of $599). 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.
How much does it cost to fly round-trip from Ontario to Newark Airport?
Airfare is below average for this route at the moment.
Ontario to Newark Airport flights typically cost between $389 and $566 in October.The cheapest round-trip price found within the last 5 days was $246 on Frontier (Oct 15-Oct 22).
Reviews of airlines servicing Newark
Get insights into the airlines that provide service to Newark. 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 Newark. Reviews last updated September 5, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Ontario to Newark Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Newark. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Newark Airport?
Book flights to Newark Airport if you plan to visit one of these locationsQueens
Bronx
Elizabeth
Mahwah
East Rutherford
Staten Island
Bethlehem
Mount Laurel
Yonkers
Irvington
Secaucus
Seaside Heights
North Bergen
Tannersville
Carle Place
Edgewater
Absecon
Carteret
Fort Lee
Parsippany
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Other flights to Newark
Explore flights to Newark departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 5, 2026.
Ontario and Newark flights
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Top 4 airlines flying from Ontario to Newark
Discover the top 4 airlines that operate flights from Ontario to Newark. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$523 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$307 | Average$510 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$331 | Average$552 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$332 | Average$528 | FlexibilityNo cancel fee | On-timeN/A |