ONT - EWR
$121 Find Cheap Flights from Ontario to Newark Liberty Airport - Compare and Save
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Newark departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know
Cheapest round-trip
$260
Typical prices: $387-$603
Frontier
Sat 11/3Tue 11/6
ONT - EWR • 2 stops
Cheapest one-way
$121
Typical prices: $200-$341
Frontier
Wed 10/31
ONT - EWR • 2 stops
Flight Deals
Cheap Flights from Ontario to Newark (ONT-EWR)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Newark that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Recent round-trip flight deals from Ontario to Newark
Tue, Nov 3 - Fri, Nov 6
11:52 am - 10:36 amONT Ontario-EWR Newark
19h 44m2 stops Denver Intl Atlanta Hartsfield-Jackson
10:14 pm - 10:42 amEWR Newark-ONT Ontario
15h 28m2 stops Atlanta Hartsfield-Jackson Denver Intl
$260Frontier
Tue, Nov 3 - Tue, Nov 17
6:25 am - 10:36 amONT Ontario-EWR Newark
25h 11m2 stops Denver Intl Atlanta Hartsfield-Jackson
11:00 pm - 10:35 amEWR Newark-ONT Ontario
14h 35m2 stops Atlanta Hartsfield-Jackson Denver Intl
$273Frontier
Fri, Oct 23 - Sat, Oct 24
7:34 pm - 5:43 amONT Ontario-EWR Newark
7h 09m1 stop Phoenix Sky Harbor Intl
7:05 am - 12:14 pmEWR Newark-ONT Ontario
8h 09m1 stop Phoenix Sky Harbor Intl
$393American Airlines
Thu, Feb 4 - Sun, Feb 7
6:00 am - 7:12 pmONT Ontario-EWR Newark
10h 12m1 stop Houston George Bush Intcntl
3:50 pm - 8:20 pmEWR Newark-ONT Ontario
7h 30m1 stop Denver Intl
$394United Airlines
Tue, Mar 9 - Tue, Mar 16
1:33 pm - 1:36 amONT Ontario-EWR Newark
9h 03m1 stop San Francisco
3:36 pm - 8:20 pmEWR Newark-ONT Ontario
7h 44m1 stop Denver Intl
$394United Airlines
Mon, Nov 16 - Mon, Nov 23
11:59 pm - 11:46 amONT Ontario-EWR Newark
8h 47m1 stop Dallas/Fort Worth
7:30 am - 12:45 pmEWR Newark-ONT Ontario
8h 15m1 stop Phoenix Sky Harbor Intl
$398American Airlines
Sat, Nov 7 - Sat, Nov 14
1:35 pm - 11:26 pmONT Ontario-EWR Newark
6h 51m1 stop Salt Lake City
6:50 am - 12:17 pmEWR Newark-ONT Ontario
8h 27m1 stop Salt Lake City
$398Delta
Tue, Oct 20 - Sat, Dec 12
5:03 pm - 6:00 amONT Ontario-EWR Newark
9h 57m1 stop Salt Lake City
6:50 am - 12:17 pmEWR Newark-ONT Ontario
8h 27m1 stop Salt Lake City
$399Delta
Tue, Nov 10 - Tue, Nov 17
6:00 am - 6:23 pmONT Ontario-EWR Newark
9h 23m1 stop Seattle/Tacoma Intl
7:00 am - 3:13 pmEWR Newark-ONT Ontario
11h 13m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
4:09 pm - 5:40 amONT Ontario-EWR Newark
10h 31m1 stop Seattle/Tacoma Intl
9:30 am - 6:17 pmEWR Newark-ONT Ontario
11h 47m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Recent one-way flight deals from Ontario to Newark
Sat, Oct 31
6:25 am - 9:19 pmONT Ontario-EWR Newark
11h 54m2 stops Denver Intl Atlanta Hartsfield-Jackson
$121Frontier
Sun, Oct 18
8:03 pm - 12:50 pmONT Ontario-EWR Newark
13h 47m1 stop Dallas/Fort Worth
$136Frontier
Wed, Nov 4
12:02 pm - 11:59 pmONT Ontario-EWR Newark
8h 57m1 stop Seattle/Tacoma Intl
$194Alaska Airlines
Tue, Nov 3
4:09 pm - 5:40 amONT Ontario-EWR Newark
10h 31m1 stop Seattle/Tacoma Intl
$199Alaska Airlines
Thu, Nov 26
1:30 pm - 11:56 pmONT Ontario-EWR Newark
7h 26m1 stop Phoenix Sky Harbor Intl
$209American Airlines
Mon, Dec 7
11:08 pm - 9:29 amONT Ontario-EWR Newark
7h 21m1 stop Atlanta Hartsfield-Jackson
$209Delta
Sun, Dec 6
11:08 pm - 9:29 amONT Ontario-EWR Newark
7h 21m1 stop Atlanta Hartsfield-Jackson
$209Delta
Wed, Mar 17
7:59 pm - 6:00 amONT Ontario-EWR Newark
7h 01m1 stop Phoenix Sky Harbor Intl
$210American Airlines
Fri, Dec 4
1:40 pm - 11:36 pmONT Ontario-EWR Newark
6h 56m1 stop Denver Intl
$210United Airlines
Thu, Dec 24
11:52 pm - 11:15 amONT Ontario-EWR Newark
8h 23m1 stop Chicago O'Hare Intl
$210United Airlines
Recent last minute flight deals from Ontario to Newark
Mon, Oct 5 - Fri, Oct 23
7:46 pm - 12:35 pmONT Ontario-EWR Newark
13h 49m1 stop Dallas/Fort Worth
5:05 pm - 11:54 pmEWR Newark-ONT Ontario
9h 49m1 stop Portland
$432Multiple Airlines
Mon, Oct 5 - Thu, Apr 15
7:46 pm - 12:35 pmONT Ontario-EWR Newark
13h 49m1 stop Dallas/Fort Worth
7:29 pm - 11:09 amEWR Newark-ONT Ontario
18h 40m1 stop Seattle/Tacoma Intl
$441Multiple Airlines
Tue, Oct 6 - Thu, Oct 22
5:03 pm - 6:00 amONT Ontario-EWR Newark
9h 57m1 stop Salt Lake City
7:04 am - 12:36 pmEWR Newark-ONT Ontario
8h 32m1 stop Salt Lake City
$489Delta
Sat, Oct 10 - Thu, Oct 22
1:35 pm - 11:26 pmONT Ontario-EWR Newark
6h 51m1 stop Salt Lake City
7:04 am - 12:36 pmEWR Newark-ONT Ontario
8h 32m1 stop Salt Lake City
$489Delta
Sat, Oct 10 - Fri, Oct 23
2:13 pm - 6:59 amONT Ontario-EWR Newark
13h 46m1 stop Seattle/Tacoma Intl
5:05 pm - 11:54 pmEWR Newark-ONT Ontario
9h 49m1 stop Portland
$499Alaska Airlines
Sat, Oct 10 - Sat, Oct 24
2:13 pm - 6:59 amONT Ontario-EWR Newark
13h 46m1 stop Seattle/Tacoma Intl
6:30 am - 8:15 pmEWR Newark-ONT Ontario
16h 45m1 stop Portland
$500Alaska Airlines
Tue, Oct 6 - Tue, Oct 13
6:00 am - 4:40 pmONT Ontario-EWR Newark
7h 40m1 stop Houston George Bush Intcntl
2:38 pm - 8:58 pmEWR Newark-ONT Ontario
9h 20m1 stop Denver Intl
$529United Airlines
Sat, Oct 10 - Thu, Oct 15
1:05 pm - 11:44 pmONT Ontario-EWR Newark
7h 39m1 stop Phoenix Sky Harbor Intl
7:05 am - 12:14 pmEWR Newark-ONT Ontario
8h 09m1 stop Phoenix Sky Harbor Intl
$541American Airlines
Sat, Oct 10 - Wed, Oct 14
10:10 pm - 9:50 amONT Ontario-EWR Newark
8h 40m1 stop Charlotte Douglas
5:00 am - 11:53 amEWR Newark-ONT Ontario
9h 53m2 stops Charlotte Douglas Dallas/Fort Worth
$546American Airlines
Tue, Oct 6 - Tue, Oct 27
7:00 am - 6:28 pmONT Ontario-EWR Newark
8h 28m1 stop Chicago O'Hare Intl
1:30 pm - 6:47 pmEWR Newark-ONT Ontario
8h 17m1 stop Chicago O'Hare Intl
$620United Airlines
Booking Insights
Price, demand and travel trends for Ontario to Newark Airport flights
Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.
Prices
Airlines
Layovers
How much is a round-trip flight from Ontario to Newark Airport?
This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Newark Airport departing in november.What's the cheapest day of the week to fly from Ontario to Newark Airport?
Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Newark Airport. It’s 3% cheaper than the average day, while Sunday is the most expensive, with prices 13% higher.
What’s the cheapest month to fly from Ontario to Newark Airport?
KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from Ontario to Newark Airport, removes the top 0.1% to account for outliers and then takes the median of all values for each month.•October is the cheapest month to fly from Ontario to Newark Airport at $352 round-trip.
•July ($599) and June ($589) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 70% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
Round-trip flights from Ontario to Newark Airport typically range from $387 to $603. The lowest price found in the past 5 days was $260, on Frontier.
What’s the most popular layover airport when flying from Ontario to Newark Airport?
KAYAK data for 1-stop round-trips over the past 3 months. Only counts itineraries with the same layover on both legs.Phoenix Sky Harbor Intl (PHX) is the most popular layover for the Ontario to Newark Airport route. 44% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via PHX.
What is the cheapest layover airport when flying from Ontario to Newark Airport?
Flights via Las Vegas Harry Reid Intl (LAS) offer the most affordable fares, with an average round-trip price of $291. Based on KAYAK data over the past 3 months.
Key details for Ontario to Newark Airport flights
Low season | February |
|---|---|
High season | November |
Cheapest flight | $121 |
When to book flights from Ontario to Newark
Are your dates flexible? Find out the best times to travel from Ontario to Newark based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.
Your Ontario to Newark Airport flight questions, answered
Find helpful answers about this route, including flight times, airports, airlines and booking tips.
Your guide to booking Ontario to Newark Airport flights
Get tips on when to book, when to fly and what to know before your trip.More options for your flight from Ontario to Newark
Complete your trip to Newark with a hotel stay or car rental
Information on your arrival and departure airports
Cabin class types available on flights to Newark
Cabin classes available on flights from Ontario to Newark. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Find direct flights to and from Ontario and Newark
Flights from domestic origins to Newark
Choose which airport to fly into in Ontario
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.