$125+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
May 23 — May 301
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 23, 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 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Tue 5/1212:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:34 pm
ONT
- EWR
1 stop20h 23m
Multiple Airlines
Mon 8/313:52 pm
EWR
- ONT
1 stop26h 17m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Thu 5/78:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Mon 5/1110:29 pm
EWR
- ONT
2 stops36h 06m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 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 5/1110:29 pm
EWR
- ONT
2 stops36h 06m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Wed 5/1312:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Tue 5/196:30 am
EWR
- ONT
2 stops30h 35m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/198:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Thu 5/2810:29 pm
EWR
- ONT
2 stops36h 35m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:39 pm
ONT
- EWR
2 stops18h 02m
Multiple Airlines
Fri 6/512:25 pm
EWR
- ONT
1 stop22h 23m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 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
Sun 5/1010:29 pm
EWR
- ONT
2 stops44h 15m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:59 pm
ONT
- EWR
1 stop10h 24m
Delta
Sat 8/296:55 pm
EWR
- ONT
1 stop7h 49m
Delta
Deal found 4/20![Delta logo]()
$307
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 23, 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 23, 2026.
This Delta deal was found by Cheapflights users on 4/22. 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 8/1710:59 pm
ONT
- EWR
1 stop9h 08m
Delta
Tue 8/257:00 am
EWR
- ONT
1 stop8h 29m
Delta
Deal found 4/22![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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 9/1010:45 am
ONT
- EWR
1 stop9h 44m
Alaska Airlines
Sun 9/137:20 am
EWR
- ONT
1 stop9h 58m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$433
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/256:30 pm
ONT
- EWR
1 stop8h 08m
United Airlines
Fri 5/2910:00 am
EWR
- ONT
1 stop10h 28m
United Airlines
Deal found 4/21![United Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:05 pm
ONT
- EWR
1 stop9h 59m
Delta
Mon 10/122:30 pm
EWR
- ONT
1 stop10h 44m
Delta
Deal found 4/20![Delta logo]()
$353
This Delta deal was found by Cheapflights users on 4/21. 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 5/91:29 pm
ONT
- EWR
1 stop7h 30m
Delta
Wed 5/136:00 am
EWR
- ONT
1 stop7h 57m
Delta
Deal found 4/21![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 8/2110:45 am
ONT
- EWR
1 stop9h 44m
Alaska Airlines
Tue 8/257:25 am
EWR
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/63:24 pm
ONT
- EWR
1 stop12h 15m
Alaska Airlines
Sun 5/105:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$462
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Sun 9/137:20 am
EWR
- ONT
1 stop9h 55m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 4/22. 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 5/2510:00 pm
ONT
- EWR
1 stop8h 25m
Delta
Sat 5/307:15 am
EWR
- ONT
1 stop8h 04m
Delta
Deal found 4/22![Delta logo]()
$529
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/284:03 pm
ONT
- EWR
1 stop11h 49m
Alaska Airlines
Mon 6/15:08 pm
EWR
- ONT
1 stop9h 48m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$537
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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.
Sat 5/164:03 pm
ONT
- EWR
1 stop11h 49m
Alaska Airlines
Sat 5/235:08 pm
EWR
- ONT
1 stop9h 48m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$537
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:39 am
ONT
- EWR
1 stop9h 50m
Alaska Airlines
Mon 5/115:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$537
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated April 23, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/22. 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.
Sat 5/26:00 am
ONT
- EWR
1 stop14h 29m
Multiple Airlines
Wed 5/131:30 pm
EWR
- ONT
1 stop8h 41m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Tue 5/1212:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Tue 5/58:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Wed 5/1312:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
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 4/19![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 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
Fri 5/812:25 pm
EWR
- ONT
1 stop22h 55m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 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
Sun 5/1010:29 pm
EWR
- ONT
2 stops44h 15m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Thu 5/78:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Mon 5/1110:29 pm
EWR
- ONT
2 stops36h 06m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Tue 5/196:30 am
EWR
- ONT
2 stops30h 35m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/198:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Thu 5/2810:29 pm
EWR
- ONT
2 stops36h 35m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:00 pm
ONT
- EWR
1 stop8h 25m
Delta
Sat 6/66:00 am
EWR
- ONT
1 stop7h 57m
Delta
Deal found 4/20![Delta logo]()
$307
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 23, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Frontier deal was found by Cheapflights users on 4/22. 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.
Sat 7/256:47 pm
ONT
- EWR
1 stop14h 43m
Frontier
Deal found 4/22![Frontier logo]()
$125
This Trip.com deal was found by Cheapflights users on 4/21. 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.
Mon 5/1111:36 am
ONT
- EWR
2 stops30h 53m
Frontier
Deal found 4/21![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Thu 5/148:06 pm
ONT
- EWR
2 stops22h 23m
Frontier
Deal found 4/19![Frontier logo]()
$128
This Expedia deal was found by Cheapflights users on 4/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:47 pm
ONT
- EWR
1 stop14h 43m
Frontier
Deal found 4/20![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Fri 5/158:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Tue 5/196:00 am
ONT
- EWR
2 stops25h 41m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.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 4/20![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:06 pm
ONT
- EWR
2 stops38h 56m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 6/13:30 pm
ONT
- EWR
2 stops40h 11m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:06 pm
ONT
- EWR
1 stop12h 14m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 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 4/18![Multiple Airlines logo]()
$146
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 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $265 (Kiwi.com) |
One-way from | $125 (Frontier) |
Popular in | March |
Cheapest in | August |
Average price | $569 |
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 23, 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 8/17
10:59 pm-11:07 am
1 stop9h 08m
Newark
Tue 8/25
7:00 am-12:29 pm
1 stop8h 29m
$307
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 10/9
5:05 pm-6:04 am
1 stop9h 59m
Newark
Mon 10/12
2:30 pm-10:14 pm
1 stop10h 44m
$353
Quickest round-trip
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 5/9
1:29 pm-11:59 pm
1 stop7h 30m
Newark
Wed 5/13
6:00 am-10:57 am
1 stop7h 57m
$377
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Thu 9/10
10:45 am-11:29 pm
1 stop9h 44m
Newark
Sun 9/13
7:20 am-2:18 pm
1 stop9h 58m
$433
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 8/21
10:45 am-11:29 pm
1 stop9h 44m
Newark
Tue 8/25
7:25 am-2:11 pm
1 stop9h 46m
$433
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 5/6
3:24 pm-6:39 am
1 stop12h 15m
Newark
Sun 5/10
5:33 pm-11:48 pm
1 stop9h 15m
$462
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 8/15
5:32 pm-5:59 am
1 stop9h 27m
Newark
Sun 9/13
7:20 am-2:15 pm
1 stop9h 55m
$477
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 5/25
10:00 pm-9:25 am
1 stop8h 25m
Newark
Sat 5/30
7:15 am-12:19 pm
1 stop8h 04m
$529
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 5/25
6:30 pm-5:38 am
1 stop8h 08m
Newark
Fri 5/29
10:00 am-5:28 pm
1 stop10h 28m
$537
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Thu 5/28
4:03 pm-6:52 am
1 stop11h 49m
Newark
Mon 6/1
5:08 pm-11:56 pm
1 stop9h 48m
$537
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 17, 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, August is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $354). Flying from Ontario to Newark Airport in March is currently the most expensive (average of $586). 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 23, 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.
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.9
Boarding
8.1
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
Bethlehem
Yonkers
Secaucus
Mount Laurel
North Bergen
Elizabeth
Irvington
Seaside Heights
Absecon
Parsippany
Edgewater
Carle Place
Staten Island
Tannersville
Carteret
Stamford
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Alternative routes for Ontario to Newark
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Complete your trip
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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 23, 2026.
Ontario and Newark flights
Browse other Ontario and Newark flight options. Last updated on April 23, 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 23, 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 23, 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$286 | Average$485 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$408 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$307 | Average$450 | FlexibilityNo cancel fee | On-time69% |