$91+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Mar 13 — Mar 201
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 February 11, 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 February 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 5/118:26 am
ONT
- EWR
1 stop24h 03m
Multiple Airlines
Tue 5/1910:29 pm
EWR
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/104:00 pm
ONT
- EWR
1 stop22h 54m
Multiple Airlines
Tue 3/1710:30 pm
EWR
- ONT
2 stops28h 29m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 5/812:59 am
ONT
- EWR
2 stops21h 17m
Multiple Airlines
Sat 5/163:45 pm
EWR
- ONT
1 stop9h 57m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 5/158:26 am
ONT
- EWR
1 stop24h 03m
Multiple Airlines
Tue 5/195:25 pm
EWR
- ONT
2 stops28h 09m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/234:22 pm
ONT
- EWR
1 stop16h 07m
Multiple Airlines
Wed 3/255:50 am
EWR
- ONT
2 stops21h 09m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 2/248:35 am
ONT
- EWR
2 stops13h 33m
Multiple Airlines
Tue 3/104:05 pm
EWR
- ONT
1 stop27h 10m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 4/166:15 am
ONT
- EWR
1 stop9h 21m
Multiple Airlines
Mon 4/2010:29 pm
EWR
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$276
This Trip.com deal was found by Cheapflights users on 2/8. 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.
Wed 3/114:02 pm
ONT
- EWR
1 stop11h 57m
Alaska Airlines
Wed 3/254:55 pm
EWR
- ONT
1 stop10h 04m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:05 am
ONT
- EWR
1 stop9h 12m
United Airlines
Tue 4/214:45 pm
EWR
- ONT
1 stop8h 41m
United Airlines
Deal found 2/8![United Airlines logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 4/2910:39 am
ONT
- EWR
1 stop9h 50m
Alaska Airlines
Sat 5/95:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$297
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 February 11, 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 February 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/7. 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
Wed 3/184:55 pm
EWR
- ONT
1 stop10h 04m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 2/8. 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 5/91:25 pm
ONT
- EWR
1 stop7h 31m
Delta
Wed 5/136:00 am
EWR
- ONT
1 stop7h 57m
Delta
Deal found 2/8![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 3/46:14 am
ONT
- EWR
1 stop9h 14m
Alaska Airlines
Fri 3/135:30 pm
EWR
- ONT
1 stop9h 22m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 2/9. 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 5/3111:04 pm
ONT
- EWR
1 stop7h 19m
Delta
Thu 6/181:29 pm
EWR
- ONT
1 stop7h 46m
Delta
Deal found 2/9![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 2/9. 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 5/301:25 pm
ONT
- EWR
1 stop7h 31m
Delta
Sat 6/61:27 pm
EWR
- ONT
1 stop8h 09m
Delta
Deal found 2/9![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:14 am
ONT
- EWR
1 stop9h 14m
Alaska Airlines
Mon 3/165:30 pm
EWR
- ONT
1 stop9h 22m
Alaska Airlines
Deal found 2/10![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 2/10. 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 5/1511:04 pm
ONT
- EWR
1 stop10h 18m
Delta
Mon 5/186:30 pm
EWR
- ONT
1 stop8h 04m
Delta
Deal found 2/10![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 5/110:39 am
ONT
- EWR
1 stop9h 50m
Alaska Airlines
Wed 5/65:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 2/8. 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 3/110:20 pm
ONT
- EWR
1 stop8h 14m
Delta
Tue 3/32:30 pm
EWR
- ONT
1 stop9h 35m
Delta
Deal found 2/8![Delta logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 2/287:00 am
ONT
- EWR
1 stop8h 59m
Alaska Airlines
Wed 3/45:30 pm
EWR
- ONT
1 stop9h 22m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 2/8. 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 2/2710:20 pm
ONT
- EWR
1 stop9h 30m
Delta
Tue 3/37:00 am
EWR
- ONT
1 stop8h 07m
Delta
Deal found 2/8![Delta logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 4/2810:39 am
ONT
- EWR
1 stop9h 50m
Alaska Airlines
Thu 4/305:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$342
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated February 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 2/248:35 am
ONT
- EWR
2 stops13h 33m
Multiple Airlines
Tue 3/104:05 pm
EWR
- ONT
1 stop27h 10m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 2/9. 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 3/210:20 pm
ONT
- EWR
1 stop8h 14m
Delta
Tue 3/103:58 pm
EWR
- ONT
1 stop8h 02m
Delta
Deal found 2/9![Delta logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 3/36:14 am
ONT
- EWR
1 stop9h 14m
Alaska Airlines
Tue 3/105:30 pm
EWR
- ONT
1 stop9h 22m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/47:17 pm
ONT
- EWR
2 stops19h 37m
Multiple Airlines
Sat 3/74:05 pm
EWR
- ONT
1 stop28h 09m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 3/47:00 am
ONT
- EWR
1 stop8h 59m
Alaska Airlines
Mon 3/95:30 pm
EWR
- ONT
1 stop9h 22m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/87:09 pm
ONT
- EWR
1 stop19h 45m
Multiple Airlines
Sun 3/1510:30 pm
EWR
- ONT
2 stops19h 15m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/104:00 pm
ONT
- EWR
1 stop22h 54m
Multiple Airlines
Tue 3/1710:30 pm
EWR
- ONT
2 stops28h 29m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$241
This Trip.com deal was found by Cheapflights users on 2/8. 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.
Wed 3/114:02 pm
ONT
- EWR
1 stop11h 57m
Alaska Airlines
Wed 3/254:55 pm
EWR
- ONT
1 stop10h 04m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 2/9. 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 3/181:20 pm
ONT
- EWR
1 stop7h 39m
Delta
Tue 3/246:30 pm
EWR
- ONT
1 stop8h 21m
Delta
Deal found 2/9![Delta logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/234:22 pm
ONT
- EWR
1 stop16h 07m
Multiple Airlines
Wed 3/255:50 am
EWR
- ONT
2 stops21h 09m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/255:10 pm
ONT
- EWR
1 stop22h 44m
Multiple Airlines
Wed 4/16:55 am
EWR
- ONT
2 stops20h 01m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/304:22 pm
ONT
- EWR
1 stop16h 07m
Multiple Airlines
Fri 4/310:54 pm
EWR
- ONT
2 stops23h 25m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$309
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 February 11, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/106:15 am
ONT
- EWR
2 stops36h 15m
Frontier
Deal found 2/8![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 4/1412:59 am
ONT
- EWR
2 stops41h 30m
Frontier
Deal found 2/9![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/38:40 am
ONT
- EWR
2 stops30h 14m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/47:17 pm
ONT
- EWR
2 stops19h 37m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/163:30 pm
ONT
- EWR
2 stops26h 39m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/99:40 pm
ONT
- EWR
2 stops17h 14m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/256:15 am
ONT
- EWR
2 stops35h 54m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/106:15 am
ONT
- EWR
3 stops29h 39m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/26:43 pm
ONT
- EWR
2 stops20h 11m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$119
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $230 (Kiwi.com) |
One-way from | $91 (Kiwi.com) |
Popular in | November |
Cheapest in | June |
Average price | $429 |
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 February 11, 2026.
Use the filters below to find and compare flights from Ontario to Newark Airport that are best for you.
Fly from
Ontario
Fly to
Newark
Route
Depart
Return
Price
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 3/14
4:02 pm-6:59 am
1 stop11h 57m
Newark
Wed 3/18
4:55 pm-11:59 pm
1 stop10h 04m
$297
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 5/9
1:25 pm-11:56 pm
1 stop7h 31m
Newark
Wed 5/13
6:00 am-10:57 am
1 stop7h 57m
$297
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 3/4
6:14 am-6:28 pm
1 stop9h 14m
Newark
Fri 3/13
5:30 pm-11:52 pm
1 stop9h 22m
$313
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sun 5/31
11:04 pm-9:23 am
1 stop7h 19m
Newark
Thu 6/18
1:29 pm-6:15 pm
1 stop7h 46m
$329
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 5/30
1:25 pm-11:56 pm
1 stop7h 31m
Newark
Sat 6/6
1:27 pm-6:36 pm
1 stop8h 09m
$329
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 3/11
6:14 am-6:28 pm
1 stop9h 14m
Newark
Mon 3/16
5:30 pm-11:52 pm
1 stop9h 22m
$329
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 5/15
11:04 pm-12:22 pm
1 stop10h 18m
Newark
Mon 5/18
6:30 pm-11:34 pm
1 stop8h 04m
$339
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sun 3/1
10:20 pm-9:34 am
1 stop8h 14m
Newark
Tue 3/3
2:30 pm-9:05 pm
1 stop9h 35m
$340
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 5/1
10:39 am-11:29 pm
1 stop9h 50m
Newark
Wed 5/6
5:33 pm-11:48 pm
1 stop9h 15m
$342
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 2/28
7:00 am-6:59 pm
1 stop8h 59m
Newark
Wed 3/4
5:30 pm-11:52 pm
1 stop9h 22m
$342
Showing 1-10 of 24 results
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 February.
| 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 6, 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 February 11, 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.
Food
7.2
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
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
Bethlehem
Yonkers
Secaucus
Elizabeth
Mount Laurel
North Bergen
Edgewater
Ronkonkoma
Seaside Heights
Absecon
Carle Place
Parsippany
Staten Island
Carteret
Irvington
Stamford
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Search flights from Ontario to Newark by cabin class
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Other flights to Newark
Explore flights to Newark departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 11, 2026.
Ontario and Newark flights
Browse other Ontario and Newark flight options. Last updated on February 11, 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 February 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Ontario to Newark
Discover the top 6 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$48 | Average$97 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$67 | Average$202 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$237 | Average$317 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$268 | Average$434 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$281 | Average$378 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$289 | Average$412 | FlexibilityNo cancel fee | On-time69% |