$162+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Newark with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Ontario to NewarkExplore the most affordable flight options available from Ontario to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 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 June 11, 2026.
This CheapTickets deal was found by Cheapflights users on 6/8. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:47 am
ONT
- EWR
1 stop9h 42m
Alaska Airlines
Tue 9/297:20 am
EWR
- ONT
1 stop9h 56m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$347
This CheapTickets deal was found by Cheapflights users on 6/8. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:54 pm
ONT
- EWR
1 stop9h 05m
Alaska Airlines
Sat 10/179:30 am
EWR
- ONT
1 stop11h 30m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$359
This Expedia deal was found by Cheapflights users on 6/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:00 pm
ONT
- EWR
1 stop11h 04m
Alaska Airlines
Thu 12/105:41 pm
EWR
- ONT
1 stop9h 18m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$365
This Gotogate deal was found by Cheapflights users on 6/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Wed 8/195:02 pm
EWR
- ONT
1 stop19h 49m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 9/2310:47 am
ONT
- EWR
1 stop9h 42m
Alaska Airlines
Wed 9/307:20 am
EWR
- ONT
1 stop9h 56m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$367
This Booking.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:14 pm
ONT
- EWR
1 stop12h 50m
Alaska Airlines
Sun 11/17:17 am
EWR
- ONT
1 stop10h 58m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 9/1110:47 am
ONT
- EWR
1 stop9h 42m
Alaska Airlines
Thu 9/177:20 am
EWR
- ONT
1 stop9h 56m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:15 pm
ONT
- EWR
1 stop7h 45m
American Airlines
Tue 8/117:15 am
EWR
- ONT
1 stop7h 48m
American Airlines
Deal found 6/10![American Airlines logo]()
$370
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:47 pm
ONT
- EWR
1 stop14h 43m
Multiple Airlines
Tue 9/17:25 am
EWR
- ONT
1 stop9h 44m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:33 pm
ONT
- EWR
1 stop7h 30m
American Airlines
Sat 9/127:20 am
EWR
- ONT
1 stop7h 43m
American Airlines
Deal found 6/8![American Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 6/8. 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 9/261:00 pm
ONT
- EWR
1 stop7h 50m
Delta
Sun 9/276:00 am
EWR
- ONT
1 stop7h 47m
Delta
Deal found 6/8![Delta logo]()
$377
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 June 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 9/2310:47 am
ONT
- EWR
1 stop9h 42m
Alaska Airlines
Tue 9/297:20 am
EWR
- ONT
1 stop9h 56m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/151:06 pm
ONT
- EWR
1 stop7h 38m
Delta
Sat 8/226:00 am
EWR
- ONT
1 stop7h 42m
Delta
Deal found 6/7![Delta logo]()
$498
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/271:18 pm
ONT
- EWR
1 stop8h 46m
United Airlines
Sat 7/46:30 am
EWR
- ONT
1 stop9h 17m
United Airlines
Deal found 6/10![United Airlines logo]()
$519
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 10/216:54 pm
ONT
- EWR
1 stop9h 05m
Alaska Airlines
Wed 10/287:17 am
EWR
- ONT
2 stops11h 45m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 6/8. 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 7/411:50 am
ONT
- EWR
1 stop9h 18m
Delta
Sat 7/116:00 am
EWR
- ONT
1 stop7h 38m
Delta
Deal found 6/8![Delta logo]()
$527
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:45 am
ONT
- EWR
1 stop10h 50m
United Airlines
Fri 8/282:50 pm
EWR
- ONT
1 stop10h 45m
United Airlines
Deal found 6/7![United Airlines logo]()
$529
This Alaska Airlines deal was found by Cheapflights users on 6/5. 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 8/85:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Thu 8/135:05 pm
EWR
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 6/5. 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 6/266:00 am
ONT
- EWR
1 stop7h 49m
Delta
Mon 6/2912:00 pm
EWR
- ONT
1 stop9h 30m
Delta
Deal found 6/5![Delta logo]()
$554
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Tue 9/11:56 pm
ONT
- EWR
2 stops15h 18m
United Airlines
Wed 9/21:08 pm
EWR
- ONT
1 stop12h 27m
United Airlines
Deal found 6/8![United Airlines logo]()
$568
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/35:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Tue 8/115:05 pm
EWR
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$542
This United Airlines deal was found by Cheapflights users on 6/6. 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 8/146:00 am
ONT
- EWR
1 stop10h 30m
United Airlines
Sat 8/1512:00 pm
EWR
- ONT
1 stop9h 12m
United Airlines
Deal found 6/6![United Airlines logo]()
$569
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 10/236:00 am
ONT
- EWR
1 stop9h 29m
Alaska Airlines
Sun 10/257:17 am
EWR
- ONT
1 stop13h 43m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$590
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated June 11, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 6/175:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Sat 11/145:41 pm
EWR
- ONT
1 stop9h 08m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 6/8. 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 7/310:00 pm
ONT
- EWR
1 stop8h 17m
Delta
Thu 7/97:15 am
EWR
- ONT
1 stop7h 55m
Delta
Deal found 6/8![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 7/411:50 am
ONT
- EWR
1 stop9h 18m
Delta
Wed 7/155:59 pm
EWR
- ONT
1 stop8h 49m
Delta
Deal found 6/10![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 7/75:10 pm
ONT
- EWR
1 stop9h 50m
Delta
Tue 7/146:00 am
EWR
- ONT
1 stop7h 38m
Delta
Deal found 6/8![Delta logo]()
$409
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:15 pm
ONT
- EWR
1 stop7h 45m
American Airlines
Sat 7/117:15 am
EWR
- ONT
1 stop7h 47m
American Airlines
Deal found 6/10![American Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 6/9. 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 7/85:10 pm
ONT
- EWR
1 stop9h 50m
Delta
Wed 7/155:59 pm
EWR
- ONT
1 stop8h 49m
Delta
Deal found 6/9![Delta logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 7/105:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Tue 7/145:05 pm
EWR
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:15 pm
ONT
- EWR
1 stop7h 45m
American Airlines
Tue 7/218:00 am
EWR
- ONT
1 stop8h 22m
American Airlines
Deal found 6/7![American Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 6/6. 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 7/1210:00 pm
ONT
- EWR
1 stop8h 24m
Delta
Tue 11/32:30 pm
EWR
- ONT
1 stop10h 44m
Delta
Deal found 6/6![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 6/6. 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 7/1210:00 pm
ONT
- EWR
1 stop8h 24m
Delta
Mon 11/22:30 pm
EWR
- ONT
1 stop10h 44m
Delta
Deal found 6/6![Delta logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 7/145:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Tue 11/35:41 pm
EWR
- ONT
1 stop9h 08m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:15 pm
ONT
- EWR
1 stop7h 45m
American Airlines
Sat 8/86:30 am
EWR
- ONT
1 stop8h 13m
American Airlines
Deal found 6/10![American Airlines logo]()
$404
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 June 11, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/118:58 am
ONT
- EWR
2 stops24h 33m
Frontier
Deal found 6/6![Frontier logo]()
$162
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/213:40 pm
ONT
- EWR
2 stops15h 51m
Frontier
Deal found 6/9![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 10/2011:38 am
ONT
- EWR
2 stops21h 49m
Frontier
Deal found 6/9![Frontier logo]()
$175
This Super.com deal was found by Cheapflights users on 6/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:47 pm
ONT
- EWR
1 stop14h 43m
Frontier
Deal found 6/7![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 6/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:47 pm
ONT
- EWR
1 stop14h 43m
Frontier
Deal found 6/10![Frontier logo]()
$177
This Trip.com deal was found by Cheapflights users on 6/8. 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.
Tue 8/45:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$180
This Trip.com deal was found by Cheapflights users on 6/8. 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.
Thu 9/1010:47 am
ONT
- EWR
1 stop9h 42m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/303:34 pm
ONT
- EWR
2 stops39h 56m
Frontier
Deal found 6/9![Frontier logo]()
$184
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/145:32 pm
ONT
- EWR
1 stop9h 27m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$185
This Trip.com deal was found by Cheapflights users on 6/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:47 pm
ONT
- EWR
1 stop14h 43m
Frontier
Deal found 6/7![Frontier logo]()
$186
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $347 (CheapTickets) |
One-way from | $162 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $548 |
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 June 11, 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
Wed 9/23
10:47 am-11:29 pm
1 stop9h 42m
Newark
Tue 9/29
7:20 am-2:16 pm
1 stop9h 56m
$367
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 10/21
6:54 pm-6:59 am
1 stop9h 05m
Newark
Wed 10/28
7:17 am-4:02 pm
2 stops11h 45m
$432
Quickest round-trip
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 8/15
1:06 pm-11:44 pm
1 stop7h 38m
Newark
Sat 8/22
6:00 am-10:42 am
1 stop7h 42m
$498
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 6/27
1:18 pm-1:04 am
1 stop8h 46m
Newark
Sat 7/4
6:30 am-12:47 pm
1 stop9h 17m
$519
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 7/4
11:50 am-12:08 am
1 stop9h 18m
Newark
Sat 7/11
6:00 am-10:38 am
1 stop7h 38m
$527
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 8/10
5:45 am-7:35 pm
1 stop10h 50m
Newark
Fri 8/28
2:50 pm-10:35 pm
1 stop10h 45m
$529
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 8/8
5:32 pm-5:59 am
1 stop9h 27m
Newark
Thu 8/13
5:05 pm-11:52 pm
1 stop9h 47m
$537
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 8/3
5:32 pm-5:59 am
1 stop9h 27m
Newark
Tue 8/11
5:05 pm-11:52 pm
1 stop9h 47m
$542
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 6/26
6:00 am-4:49 pm
1 stop7h 49m
Newark
Mon 6/29
12:00 pm-6:30 pm
1 stop9h 30m
$554
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 9/1
1:56 pm-8:14 am
2 stops15h 18m
Newark
Wed 9/2
1:08 pm-10:35 pm
1 stop12h 27m
$568
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Ontario to Newark
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Newark in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Newark Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Newark Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Newark Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Newark Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Newark Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Newark
Have a flexible travel schedule? Discover the best time to fly to Newark from Ontario with our price prediction graph.
ONT-EWR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Newark Airport
How far ahead should I book a flight from Ontario to Newark Airport?
Booking 66 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 $362). 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 June 11, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Ontario to Newark Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.9
Entertainment
7.0
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Entertainment
7.0
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Entertainment
7.0
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Entertainment
7.0
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Entertainment
7.0
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Entertainment
7.0
Crew
8.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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
Elizabeth
East Rutherford
Bethlehem
Yonkers
North Bergen
Mount Laurel
Secaucus
Irvington
Staten Island
Seaside Heights
Tannersville
Absecon
Parsippany
Edgewater
Carle Place
Carteret
Carlstadt
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Alternative routes for Ontario to Newark
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Complete your trip
Complete your trip to Newark by adding a car rental and/or hotel reservation to your travel itinerary.
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 June 11, 2026.
Ontario and Newark flights
Browse other Ontario and Newark flight options. Last updated on June 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 June 11, 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$511 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$257 | Average$337 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$286 | Average$513 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$307 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$332 | Average$488 | FlexibilityNo cancel fee | On-timeN/A |