$93+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
May 15 — May 221
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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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
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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 April 15, 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 April 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Fri 5/15:33 pm
ONT
- EWR
2 stops24h 56m
Multiple Airlines
Mon 5/412:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/510:50 am
ONT
- EWR
2 stops31h 39m
Multiple Airlines
Wed 5/2712:25 pm
EWR
- ONT
1 stop21h 43m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Mon 5/1112:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Wed 5/610:29 pm
EWR
- ONT
2 stops38h 36m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Fri 5/15:33 pm
ONT
- EWR
2 stops24h 56m
Multiple Airlines
Sat 5/912:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/278:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Wed 6/39:16 pm
EWR
- ONT
2 stops39h 49m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Tue 5/1212:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Fri 5/18:26 am
ONT
- EWR
1 stop8h 38m
Multiple Airlines
Sun 5/310:29 pm
EWR
- ONT
2 stops36h 06m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/68:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Mon 5/119:16 pm
EWR
- ONT
2 stops39h 49m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/76:00 am
ONT
- EWR
2 stops25h 41m
Multiple Airlines
Wed 5/1312:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$246
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 April 15, 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 April 15, 2026.
This Delta deal was found by Cheapflights users on 4/11. 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 5/410:15 pm
ONT
- EWR
1 stop8h 14m
Delta
Fri 5/86:30 pm
EWR
- ONT
1 stop8h 04m
Delta
Deal found 4/11![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 4/11. 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 8/145:45 am
ONT
- EWR
1 stop9h 49m
United Airlines
Sat 8/1510:25 am
EWR
- ONT
1 stop10h 54m
United Airlines
Deal found 4/11![United Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:00 am
ONT
- EWR
1 stop8h 29m
Alaska Airlines
Fri 5/87:29 am
EWR
- ONT
1 stop10h 03m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 4/11. 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 9/157:00 am
ONT
- EWR
1 stop7h 47m
Delta
Wed 9/166:00 am
EWR
- ONT
1 stop8h 04m
Delta
Deal found 4/11![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 4/14. 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.
Wed 10/712:00 pm
ONT
- EWR
1 stop7h 58m
Delta
Wed 10/146:55 pm
EWR
- ONT
1 stop7h 53m
Delta
Deal found 4/14![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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 5/510:39 am
ONT
- EWR
1 stop9h 50m
Alaska Airlines
Tue 7/215:05 pm
EWR
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 4/14. 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 7/25:00 am
ONT
- EWR
1 stop9h 31m
United Airlines
Mon 7/67:00 am
EWR
- ONT
1 stop8h 12m
United Airlines
Deal found 4/14![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 4/12. 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 9/175:05 pm
ONT
- EWR
1 stop10h 03m
Delta
Tue 9/226:00 am
EWR
- ONT
1 stop8h 04m
Delta
Deal found 4/12![Delta logo]()
$383
This United Airlines deal was found by Cheapflights users on 4/14. 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 7/95:45 am
ONT
- EWR
1 stop10h 50m
United Airlines
Wed 7/152:50 pm
EWR
- ONT
1 stop11h 01m
United Airlines
Deal found 4/14![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 4/10. 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 8/215:05 pm
ONT
- EWR
1 stop10h 03m
Delta
Tue 9/110:25 am
EWR
- ONT
1 stop10h 36m
Delta
Deal found 4/10![Delta logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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 7/275:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Wed 8/125:05 pm
EWR
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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 8/15:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Fri 8/145:05 pm
EWR
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$477
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated April 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Fri 5/15:33 pm
ONT
- EWR
2 stops24h 56m
Multiple Airlines
Mon 5/412:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Fri 5/15:33 pm
ONT
- EWR
2 stops24h 56m
Multiple Airlines
Sat 5/912:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Fri 5/18:26 am
ONT
- EWR
1 stop8h 38m
Multiple Airlines
Sun 5/310:29 pm
EWR
- ONT
2 stops36h 06m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/510:50 am
ONT
- EWR
2 stops31h 39m
Multiple Airlines
Wed 5/2712:25 pm
EWR
- ONT
1 stop21h 43m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Mon 5/1112:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Wed 5/610:29 pm
EWR
- ONT
2 stops38h 36m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/68:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Mon 5/119:16 pm
EWR
- ONT
2 stops39h 49m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/76:00 am
ONT
- EWR
2 stops25h 41m
Multiple Airlines
Wed 5/1312:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Tue 5/1212:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/278:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Wed 6/39:16 pm
EWR
- ONT
2 stops39h 49m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$242
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 April 15, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This Trip.com deal was found by Cheapflights users on 4/11. 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 6/28:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:50 am
ONT
- EWR
2 stops22h 42m
Frontier
Deal found 4/14![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/1610:50 am
ONT
- EWR
2 stops20h 51m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Fri 5/18:26 am
ONT
- EWR
1 stop30h 19m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/610:50 am
ONT
- EWR
2 stops20h 51m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$119
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/2010:50 am
ONT
- EWR
2 stops20h 51m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$127
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$130
This Frontier deal was found by Cheapflights users on 4/13. 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.
Wed 7/86:47 pm
ONT
- EWR
1 stop14h 43m
Frontier
Deal found 4/13![Frontier logo]()
$131
This Trip.com deal was found by Cheapflights users on 4/10. 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 5/235:59 pm
ONT
- EWR
1 stop14h 21m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$133
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 April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $209 (Kiwi.com) |
One-way from | $93 (Trip.com) |
Popular in | March |
Cheapest in | August |
Average price | $568 |
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 April 15, 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 - EWR
ONTEWR
Ontario
Mon 5/4
10:15 pm-9:29 am
1 stop8h 14m
Newark
Fri 5/8
6:30 pm-11:34 pm
1 stop8h 04m
$307
Quickest round-trip
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 9/15
7:00 am-5:47 pm
1 stop7h 47m
Newark
Wed 9/16
6:00 am-11:04 am
1 stop8h 04m
$307
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 10/7
12:00 pm-10:58 pm
1 stop7h 58m
Newark
Wed 10/14
6:55 pm-11:48 pm
1 stop7h 53m
$307
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Thu 9/17
5:05 pm-6:08 am
1 stop10h 03m
Newark
Tue 9/22
6:00 am-11:04 am
1 stop8h 04m
$383
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 8/21
5:05 pm-6:08 am
1 stop10h 03m
Newark
Tue 9/1
10:25 am-6:01 pm
1 stop10h 36m
$383
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 8/14
5:45 am-6:34 pm
1 stop9h 49m
Newark
Sat 8/15
10:25 am-6:19 pm
1 stop10h 54m
$417
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sun 5/3
7:00 am-6:29 pm
1 stop8h 29m
Newark
Fri 5/8
7:29 am-2:32 pm
1 stop10h 03m
$418
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 5/5
10:39 am-11:29 pm
1 stop9h 50m
Newark
Tue 7/21
5:05 pm-11:52 pm
1 stop9h 47m
$451
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Thu 7/2
5:00 am-5:31 pm
1 stop9h 31m
Newark
Mon 7/6
7:00 am-12:12 pm
1 stop8h 12m
$458
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Thu 7/9
5:45 am-7:35 pm
1 stop10h 50m
Newark
Wed 7/15
2:50 pm-10:51 pm
1 stop11h 01m
$458
Showing 1-10 of 23 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 April.
| 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 April 10, 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 April is currently the most expensive (average of $186). 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?
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 April 15, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andJetBlue 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
7.8
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
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
Bronx
Mahwah
East Rutherford
Yonkers
Bethlehem
Secaucus
Mount Laurel
North Bergen
Elizabeth
Irvington
Staten Island
Seaside Heights
Absecon
Parsippany
Edgewater
Carle Place
Tannersville
Carteret
Stamford
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Alternative routes for Ontario to Newark
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Search flights from Ontario to Newark by cabin class
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 April 15, 2026.
Ontario and Newark flights
Browse other Ontario and Newark flight options. Last updated on April 15, 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 April 15, 2026.
Popular flight searches
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 April 15, 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$465 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$307 | Average$431 | FlexibilityNo cancel fee | On-time69% |