$105+ Cheap flights from Ontario (ONT) to Newark (EWR)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Apr 29 — May 61
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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to NewarkExplore the most affordable flight options available from Ontario to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.
Explore the most affordable flight options available from Ontario to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:44 am
ONT
- EWR
1 stop16h 18m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:44 pm
ONT
- EWR
2 stops26h 32m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/285:59 am
EWR
- ONT
2 stops15h 50m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/282:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 5/512:25 pm
EWR
- ONT
1 stop22h 10m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Mon 4/272:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$250
Best flights from Ontario to NewarkDiscover carefully curated flight deals from Ontario to Newark that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
Discover carefully curated flight deals from Ontario to Newark that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
This Delta deal was found by Cheapflights users on 3/29. 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 9/27:00 am
ONT
- EWR
1 stop7h 47m
Delta
Sun 9/66:00 am
EWR
- ONT
1 stop8h 04m
Delta
Deal found 3/29![Delta logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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 4/257:00 am
ONT
- EWR
1 stop8h 29m
Alaska Airlines
Sat 5/25:33 pm
EWR
- ONT
1 stop9h 15m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 4/1610:33 am
ONT
- EWR
1 stop9h 38m
Alaska Airlines
Tue 4/215:00 pm
EWR
- ONT
1 stop9h 59m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 3/25. 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 5/21:29 pm
ONT
- EWR
1 stop7h 26m
Delta
Tue 5/53:29 pm
EWR
- ONT
1 stop8h 31m
Delta
Deal found 3/25![Delta logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 4/273:26 pm
ONT
- EWR
1 stop12h 13m
Alaska Airlines
Wed 5/67:29 am
EWR
- ONT
1 stop10h 01m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 3/29. 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 9/67:00 am
ONT
- EWR
1 stop7h 47m
Delta
Wed 9/96:00 am
EWR
- ONT
1 stop8h 04m
Delta
Deal found 3/29![Delta logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 5/43:26 pm
ONT
- EWR
1 stop12h 13m
Alaska Airlines
Thu 5/77:29 am
EWR
- ONT
1 stop10h 03m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:29 pm
ONT
- EWR
1 stop7h 30m
Delta
Sun 6/76:00 am
EWR
- ONT
1 stop7h 40m
Delta
Deal found 3/28![Delta logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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 4/1510:33 am
ONT
- EWR
1 stop9h 38m
Alaska Airlines
Tue 4/219:00 am
EWR
- ONT
1 stop12h 13m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$462
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 8/2110:03 am
ONT
- EWR
1 stop10h 10m
Alaska Airlines
Mon 8/315:41 pm
EWR
- ONT
1 stop9h 18m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/147:00 am
ONT
- EWR
1 stop8h 29m
Alaska Airlines
Thu 4/163:30 pm
EWR
- ONT
1 stop11h 29m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 8/2410:03 am
ONT
- EWR
1 stop10h 10m
Alaska Airlines
Sat 8/295:41 pm
EWR
- ONT
1 stop9h 18m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$493
Last-minute flights from Ontario to NewarkDiscover last-minute flight deals from Ontario to Newark. Data last updated March 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Newark. Data last updated March 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:44 am
ONT
- EWR
1 stop16h 18m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/282:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:44 pm
ONT
- EWR
2 stops26h 32m
Multiple Airlines
Wed 4/292:55 pm
EWR
- ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/282:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 4/282:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Wed 4/295:59 am
EWR
- ONT
2 stops15h 50m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Mon 4/272:55 pm
EWR
- ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- EWR
1 stop8h 18m
Multiple Airlines
Tue 5/55:55 am
EWR
- ONT
2 stops20h 54m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$251
One-way flights from Ontario to NewarkSearch for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
This Trip.com deal was found by Cheapflights users on 3/27. 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 4/2211:44 am
ONT
- EWR
1 stop16h 18m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$105
This Trip.com deal was found by Cheapflights users on 3/25. 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 4/2911:44 am
ONT
- EWR
1 stop16h 13m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$106
This Trip.com deal was found by Cheapflights users on 3/25. 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 5/134:39 pm
ONT
- EWR
1 stop11h 23m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$113
This Trip.com deal was found by Cheapflights users on 3/25. 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 5/64:39 pm
ONT
- EWR
1 stop11h 23m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 5/48:59 pm
ONT
- EWR
1 stop31h 03m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$120
This Trip.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:44 am
ONT
- EWR
1 stop16h 18m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$121
This Trip.com deal was found by Cheapflights users on 3/25. 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 4/1511:44 am
ONT
- EWR
1 stop16h 18m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$122
This Trip.com deal was found by Cheapflights users on 3/26. 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 5/118:44 am
ONT
- EWR
2 stops24h 46m
Frontier
Deal found 3/26![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/1411:44 am
ONT
- EWR
3 stops29h 20m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/139:02 pm
ONT
- EWR
3 stops44h 02m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$131
Find flight deals from Ontario to Newark
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Newark (EWR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $216 (Kiwi.com) |
One-way from | $105 (Trip.com) |
Popular in | March |
Cheapest in | June |
Average price | $615 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Newark that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 30, 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 9/2
7:00 am-5:47 pm
1 stop7h 47m
Newark
Sun 9/6
6:00 am-11:04 am
1 stop8h 04m
$389
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 4/25
7:00 am-6:29 pm
1 stop8h 29m
Newark
Sat 5/2
5:33 pm-11:48 pm
1 stop9h 15m
$389
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Thu 4/16
10:33 am-11:11 pm
1 stop9h 38m
Newark
Tue 4/21
5:00 pm-11:59 pm
1 stop9h 59m
$418
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 4/27
3:26 pm-6:39 am
1 stop12h 13m
Newark
Wed 5/6
7:29 am-2:30 pm
1 stop10h 01m
$418
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 5/2
1:29 pm-11:55 pm
1 stop7h 26m
Newark
Tue 5/5
3:29 pm-9:00 pm
1 stop8h 31m
$424
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sun 9/6
7:00 am-5:47 pm
1 stop7h 47m
Newark
Wed 9/9
6:00 am-11:04 am
1 stop8h 04m
$424
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 5/4
3:26 pm-6:39 am
1 stop12h 13m
Newark
Thu 5/7
7:29 am-2:32 pm
1 stop10h 03m
$433
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Wed 4/15
10:33 am-11:11 pm
1 stop9h 38m
Newark
Tue 4/21
9:00 am-6:13 pm
1 stop12h 13m
$462
Quickest round-trip
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 6/6
1:29 pm-11:59 pm
1 stop7h 30m
Newark
Sun 6/7
6:00 am-10:40 am
1 stop7h 40m
$472
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Fri 8/21
10:03 am-11:13 pm
1 stop10h 10m
Newark
Mon 8/31
5:41 pm-11:59 pm
1 stop9h 18m
$477
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Ontario to Newark
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Newark in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Newark Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Newark Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Newark Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Newark Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Newark Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Newark
Have a flexible travel schedule? Discover the best time to fly to Newark from Ontario with our price prediction graph.
ONT-EWR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Newark Airport
How far ahead should I book a flight from Ontario to Newark Airport?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Newark. Price data was last updated on March 13, 2026.
Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Newark Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Newark Airport?
Currently, June is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $78). Flying from Ontario to Newark Airport in April is currently the most expensive (average of $173). 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 March 30, 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.
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentLucy,Nov 2023
ATL - JFK
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Overall
7.9
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
Bronx
Mahwah
East Rutherford
Yonkers
Bethlehem
Secaucus
Mount Laurel
Elizabeth
North Bergen
Irvington
Staten Island
Seaside Heights
Absecon
Carle Place
Parsippany
Edgewater
Tannersville
Carteret
Stamford
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Top 5 airlines flying from Ontario to Newark
Discover the top 5 airlines that operate flights from Ontario to Newark. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 30, 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$273 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$281 | Average$406 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$291 | Average$428 | FlexibilityNo cancel fee | On-time69% |