$87+ Cheap flights from Ontario (ONT) to Newark (EWR)
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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Apr 4 — Apr 111
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
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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 March 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 March 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/212:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Wed 4/225:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Fri 4/1710:29 pm
EWR
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:44 pm
ONT
- EWR
1 stop8h 11m
Multiple Airlines
Tue 4/215:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Mon 4/202:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:44 pm
ONT
- EWR
1 stop7h 46m
Multiple Airlines
Wed 4/225:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:44 am
ONT
- EWR
1 stop15h 46m
Multiple Airlines
Tue 4/2110:29 pm
EWR
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:44 am
ONT
- EWR
1 stop15h 46m
Multiple Airlines
Tue 4/285:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$193
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 March 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 March 5, 2026.
This Delta deal was found by Cheapflights users on 2/28. 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 4/1810:15 pm
ONT
- EWR
1 stop8h 14m
Delta
Sat 4/251:28 pm
EWR
- ONT
1 stop8h 05m
Delta
Deal found 2/28![Delta logo]()
$278
This Alaska Airlines deal was found by Cheapflights users on 2/28. 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 6/14:03 pm
ONT
- EWR
1 stop11h 49m
Alaska Airlines
Tue 6/29:30 am
EWR
- ONT
1 stop12h 17m
Alaska Airlines
Deal found 2/28![Alaska Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:18 pm
ONT
- EWR
1 stop8h 46m
United Airlines
Sat 6/137:00 am
EWR
- ONT
1 stop8h 12m
United Airlines
Deal found 3/3![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 3/4. 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.
Tue 6/24:57 pm
ONT
- EWR
1 stop10h 03m
Delta
Tue 6/97:00 am
EWR
- ONT
1 stop8h 29m
Delta
Deal found 3/4![Delta logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 3/3. 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.
Fri 4/243:26 pm
ONT
- EWR
1 stop12h 13m
Alaska Airlines
Thu 4/305:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 3/3![Alaska Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:45 am
ONT
- EWR
1 stop9h 45m
United Airlines
Tue 7/217:00 am
EWR
- ONT
1 stop8h 12m
United Airlines
Deal found 3/3![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 3/2. 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 5/161:29 pm
ONT
- EWR
2 stops16h 14m
Delta
Tue 5/196:00 am
EWR
- ONT
2 stops13h 17m
Delta
Deal found 3/2![Delta logo]()
$438
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Tue 4/75:10 am
ONT
- EWR
1 stop7h 54m
United Airlines
Thu 4/93:40 pm
EWR
- ONT
1 stop7h 56m
United Airlines
Deal found 2/28![United Airlines logo]()
$467
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:59 pm
ONT
- EWR
1 stop15h 31m
Alaska Airlines
Mon 5/49:00 am
EWR
- ONT
1 stop17h 59m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$478
This Delta deal was found by Cheapflights users on 3/1. 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.
Wed 6/1012:00 pm
ONT
- EWR
1 stop9h 04m
Delta
Mon 6/156:55 pm
EWR
- ONT
1 stop7h 49m
Delta
Deal found 3/1![Delta logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/144:02 pm
ONT
- EWR
1 stop11h 57m
Alaska Airlines
Thu 3/194:55 pm
EWR
- ONT
1 stop10h 04m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$532
This Delta deal was found by Cheapflights users on 3/2. 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.
Mon 5/1110:00 pm
ONT
- EWR
2 stops22h 18m
Delta
Mon 5/188:15 pm
EWR
- ONT
2 stops19h 04m
Delta
Deal found 3/2![Delta logo]()
$493
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated March 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated March 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:44 pm
ONT
- EWR
1 stop8h 11m
Multiple Airlines
Tue 4/215:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/212:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Wed 4/225:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Fri 4/1710:29 pm
EWR
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Mon 4/202:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:44 pm
ONT
- EWR
1 stop7h 46m
Multiple Airlines
Wed 4/225:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:44 am
ONT
- EWR
1 stop15h 46m
Multiple Airlines
Tue 4/2110:29 pm
EWR
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:44 am
ONT
- EWR
1 stop15h 46m
Multiple Airlines
Tue 4/285:59 am
EWR
- ONT
2 stops20h 56m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$193
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 March 5, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated March 5, 2026.
This Trip.com deal was found by Cheapflights users on 3/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:44 am
ONT
- EWR
1 stop16h 11m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
- EWR
2 stops41h 30m
Frontier
Deal found 3/2![Frontier logo]()
$96
This Trip.com deal was found by Cheapflights users on 3/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:44 am
ONT
- EWR
1 stop16h 18m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$98
This Trip.com deal was found by Cheapflights users on 3/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:47 am
ONT
- EWR
1 stop15h 43m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/139:02 pm
ONT
- EWR
1 stop30h 53m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:49 pm
ONT
- EWR
1 stop7h 41m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:59 pm
ONT
- EWR
1 stop31h 03m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:15 am
ONT
- EWR
2 stops38h 14m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:20 am
ONT
- EWR
2 stops38h 09m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$116
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 March 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $180 (Kiwi.com) |
One-way from | $87 (Trip.com) |
Popular in | November |
Cheapest in | June |
Average price | $462 |
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 2,558,603 searches. Data last updated March 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
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 4/18
10:15 pm-9:29 am
1 stop8h 14m
Newark
Sat 4/25
1:28 pm-6:33 pm
1 stop8h 05m
$278
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 6/2
4:57 pm-6:00 am
1 stop10h 03m
Newark
Tue 6/9
7:00 am-12:29 pm
1 stop8h 29m
$368
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 6/1
4:03 pm-6:52 am
1 stop11h 49m
Newark
Tue 6/2
9:30 am-6:47 pm
1 stop12h 17m
$381
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 4/24
3:26 pm-6:39 am
1 stop12h 13m
Newark
Thu 4/30
5:33 pm-11:48 pm
1 stop9h 15m
$387
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 6/9
1:18 pm-1:04 am
1 stop8h 46m
Newark
Sat 6/13
7:00 am-12:12 pm
1 stop8h 12m
$429
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 5/16
1:29 pm-8:43 am
2 stops16h 14m
Newark
Tue 5/19
6:00 am-4:17 pm
2 stops13h 17m
$438
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 6/10
12:00 pm-12:04 am
1 stop9h 04m
Newark
Mon 6/15
6:55 pm-11:44 pm
1 stop7h 49m
$443
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 7/17
5:45 am-6:30 pm
1 stop9h 45m
Newark
Tue 7/21
7:00 am-12:12 pm
1 stop8h 12m
$449
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 4/7
5:10 am-4:04 pm
1 stop7h 54m
Newark
Thu 4/9
3:40 pm-8:36 pm
1 stop7h 56m
$467
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 5/1
7:59 pm-2:30 pm
1 stop15h 31m
Newark
Mon 5/4
9:00 am-11:59 pm
1 stop17h 59m
$478
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | 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?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Newark. Price data was last updated on February 27, 2026.
Booking 52 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, June is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $78). Flying from Ontario to Newark Airport in December is currently the most expensive (average of $166). 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.
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 March 5, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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.
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
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
Mahwah
Bronx
East Rutherford
Yonkers
Bethlehem
Secaucus
Elizabeth
Mount Laurel
North Bergen
Edgewater
Irvington
Seaside Heights
Absecon
Carle Place
Parsippany
Tannersville
Staten Island
Carteret
Stamford
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Find flights from Ontario to Newark, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 March 5, 2026.
Ontario and Newark flights
Browse other Ontario and Newark flight options. Last updated on March 5, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on March 5, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Ontario to Newark
Discover the top 5 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 2,558,603 searches. Data last updated March 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$67 | Average$202 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$257 | Average$337 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$276 | Average$439 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$387 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$291 | Average$412 | FlexibilityNo cancel fee | On-time69% |