$177+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Nov 19 — Nov 261
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 October 20, 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 October 20, 2026.
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:30 am -
2 stops20h 22m
Tue 12/86:00 am -
2 stops19h 17m
Deal found 10/15![Frontier logo]()
$316
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am -
2 stops25h 48m
Sat 12/126:00 am -
2 stops19h 17m
Deal found 10/15![Frontier logo]()
$367
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
2 stops19h 44m
Tue 11/1711:00 pm -
2 stops14h 35m
Deal found 10/15![Frontier logo]()
$373
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:44 am -
2 stops12h 45m
Tue 12/1511:43 am -
2 stops23h 01m
Deal found 10/19![Frontier logo]()
$374
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:00 am -
2 stops13h 29m
Fri 12/410:24 pm -
2 stops23h 07m
Deal found 10/20![Frontier logo]()
$380
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:44 am -
2 stops12h 45m
Mon 12/1410:26 pm -
2 stops23h 05m
Deal found 10/19![Frontier logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 11/135:59 pm -
1 stop9h 31m
Sat 11/149:30 am -
1 stop11h 47m
Deal found 10/19![Alaska Airlines logo]()
$393
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 October 20, 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 October 20, 2026.
This Delta deal was found by Cheapflights users on 10/14. 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.
Mon 12/711:08 pm -
1 stop7h 21m
Sat 12/126:50 am -
1 stop8h 27m
Deal found 10/14![Delta logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Tue 11/104:09 pm -
1 stop10h 31m
Thu 11/123:29 pm -
1 stop10h 37m
Deal found 10/16![Alaska Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 11/51:29 pm -
1 stop7h 13m
Sun 11/86:00 am -
1 stop9h 29m
Deal found 10/16![United Airlines logo]()
$517
This KAYAK deal was found by Cheapflights users on 10/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:30 pm -
1 stop8h 02m
Thu 11/127:30 am -
1 stop11h 05m
Deal found 10/16![American Airlines logo]()
$542
This Delta deal was found by Cheapflights users on 10/14. 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 11/71:35 pm -
1 stop6h 51m
Tue 11/106:50 am -
1 stop8h 27m
Deal found 10/14![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 10/17. 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 11/55:03 pm -
1 stop9h 56m
Sat 11/76:59 am -
1 stop8h 37m
Deal found 10/17![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Mon 1/411:52 pm -
1 stop7h 21m
Sat 1/93:42 pm -
1 stop9h 33m
Deal found 10/15![United Airlines logo]()
$529
This KAYAK deal was found by Cheapflights users on 10/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:59 pm -
1 stop8h 35m
Fri 10/306:29 am -
1 stop10h 01m
Deal found 10/15![American Airlines logo]()
$544
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 10/246:02 am -
1 stop9h 27m
Fri 10/305:05 pm -
1 stop9h 49m
Deal found 10/16![Alaska Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 10/15. 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 11/55:03 pm -
1 stop9h 56m
Mon 11/95:45 pm -
1 stop9h 04m
Deal found 10/15![Delta logo]()
$500
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Thu 11/121:29 pm -
1 stop8h 26m
Sun 11/156:00 am -
1 stop9h 33m
Deal found 10/14![United Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Thu 1/711:20 am -
1 stop11h 00m
Sun 1/103:42 pm -
1 stop9h 33m
Deal found 10/19![United Airlines logo]()
$579
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated October 20, 2026 and is based on user searches.
This Kissandfly.com deal was found by Cheapflights users on 10/19. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:07 am -
1 stop7h 43m
Sat 10/316:30 am -
1 stop16h 45m
Deal found 10/19![Hawaiian Airlines logo]()
$427
This Gotogate deal was found by Cheapflights users on 10/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:02 pm -
1 stop8h 57m
Sat 11/79:30 am -
1 stop11h 47m
Deal found 10/15![Alaska Airlines logo]()
$423
This Gotogate deal was found by Cheapflights users on 10/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:13 pm -
1 stop16h 16m
Sat 11/149:30 am -
1 stop11h 47m
Deal found 10/17![Alaska Airlines logo]()
$408
This Gotogate deal was found by Cheapflights users on 10/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:13 pm -
1 stop16h 16m
Fri 11/139:30 am -
1 stop11h 47m
Deal found 10/16![Alaska Airlines logo]()
$411
This CheapOair deal was found by Cheapflights users on 10/19. 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 11/98:03 pm -
2 stops46h 50m
Tue 11/1711:35 am -
2 stops32h 03m
Deal found 10/19![Frontier logo]()
$429
This Gotogate deal was found by Cheapflights users on 10/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:13 pm -
1 stop16h 16m
Wed 11/189:30 am -
1 stop11h 47m
Deal found 10/19![Alaska Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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.
Tue 11/1012:02 pm -
1 stop8h 57m
Wed 11/189:30 am -
1 stop11h 47m
Deal found 10/19![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 11/1212:02 pm -
1 stop8h 57m
Sat 11/149:30 am -
1 stop11h 47m
Deal found 10/19![Alaska Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 11/135:59 pm -
1 stop9h 31m
Sat 11/149:30 am -
1 stop11h 47m
Deal found 10/19![Alaska Airlines logo]()
$393
This Gotogate deal was found by Cheapflights users on 10/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:13 pm -
1 stop16h 16m
Mon 11/165:29 pm -
1 stop19h 23m
Deal found 10/15![Alaska Airlines logo]()
$424
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
2 stops19h 44m
Tue 11/1711:00 pm -
2 stops14h 35m
Deal found 10/15![Frontier logo]()
$373
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
2 stops19h 55m
Mon 11/1611:00 pm -
2 stops14h 35m
Deal found 10/15![Multiple Airlines logo]()
$413
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 October 20, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This Mytrip deal was found by Cheapflights users on 10/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:07 pm -
2 stops14h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$177
This Booking.com deal was found by Cheapflights users on 10/18. 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.
Sat 12/58:44 am -
2 stops12h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Frontier logo]()
$183
This SmartFares deal was found by Cheapflights users on 10/19. 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.
Mon 1/114:16 pm -
1 stop11h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Alaska Airlines logo]()
$184
This SmartFares deal was found by Cheapflights users on 10/17. 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.
Tue 11/1012:02 pm -
1 stop8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Alaska Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1412:36 pm -
2 stops32h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$191
This Trip.com deal was found by Cheapflights users on 10/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:09 pm -
1 stop10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Alaska Airlines logo]()
$193
This flugladen.de deal was found by Cheapflights users on 10/15. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/294:16 pm -
1 stop11h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Alaska Airlines logo]()
$194
This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:44 am -
2 stops12h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$198
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:00 am -
2 stops13h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$199
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 October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Mytrip) |
One-way from | $177 (Mytrip) |
Popular in | July |
Cheapest in | December |
Average price | $409 |
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 October 20, 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
Sun 12/20
11:52 pm-11:15 am
1 stop8h 23m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$220
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Mon 11/9
11:10 pm-9:30 am
1 stop7h 20m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$224
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Tue 11/10
6:00 am-4:25 pm
1 stop7h 25m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$230
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Mon 11/2
5:03 pm-5:59 am
1 stop9h 56m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$262
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Fri 11/6
1:32 pm-11:42 pm
1 stop7h 10m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Fri 12/25
5:00 am-3:35 pm
1 stop7h 35m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Mon 11/23
7:00 am-8:04 pm
1 stop10h 04m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
Quickest round-trip
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Sun 1/17
1:42 pm-11:44 pm
1 stop7h 02m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Wed 11/18
5:00 am-5:36 pm
1 stop9h 36m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
OntarioNewark
ONT Ontario - EWR Newark
ONTEWR
Ontario
Sat 12/5
5:00 am-3:41 pm
1 stop7h 41m
Newark
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$285
Showing 1-10 of 24 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 October.
| 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, December is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $406). 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 $388 and $642 in December.The cheapest round-trip price found within the last 5 days was $316 on Frontier (Dec 2-Dec 8).
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 October 20, 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.
Crew
8.5
Entertainment
7.0
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Crew
8.5
Entertainment
7.0
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Crew
8.5
Entertainment
7.0
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Crew
8.5
Entertainment
7.0
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentVincent,Jun 2024
SEA - EWR
Crew
8.5
Entertainment
7.0
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
7.8
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
East Rutherford
Staten Island
Mahwah
Bethlehem
Mount Laurel
Yonkers
Irvington
Secaucus
Tannersville
North Bergen
Carle Place
Fort Lee
Clinton
Absecon
Carteret
Seaside Heights
Goshen
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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 October 20, 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 October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$511 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$307 | Average$550 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$332 | Average$528 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$349 | Average$543 | FlexibilityNo cancel fee | On-time71% |