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Cheap flights from Ontario (ONT) to Newark (EWR)

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0 Children (2~11)
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How to find the cheapest flight from Ontario (ONT) to Newark (EWR)

How to find the cheapest flight from Ontario (ONT) to Newark (EWR)
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How to find the cheapest flight from Ontario (ONT) to Newark (EWR)
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How to find the cheapest flight from Ontario (ONT) to Newark (EWR)
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Cheap flights from Ontario to Newark in September , October 2026

23 Sep - 30 Oct $ 406.00
ONT
Ontario
Alaska Airlines
1 STOPS
EWR
Newark
EWR
Newark
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates
09 Sep - 09 Oct $ 523.00
ONT
Ontario
Frontier Airlines
1 STOPS
EWR
Newark
EWR
Newark
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
16 Sep - 09 Oct $ 538.00
ONT
Ontario
Frontier Airlines
1 STOPS
EWR
Newark
EWR
Newark
Frontier Airlines
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to Newark

23 Sep - 30 Sep $ 419.00
ONT
Ontario
Alaska Airlines
1 STOPS
EWR
Newark
EWR
Newark
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates
09 Sep - 30 Sep $ 466.00
ONT
Ontario
Alaska Airlines
1 STOPS
EWR
Newark
EWR
Newark
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates
15 Sep - 30 Sep $ 639.00
ONT
Ontario
United Airlines
1 STOPS
EWR
Newark
EWR
Newark
United Airlines
1 STOPS
ONT
Ontario
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One-way flights to Newark from Ontario

1:24 PM - 6:05 PM
United Airlines
1 Stops
7h 34m
ONT - EWR
$ 210
Kiwi
Pick dates
7:11 PM - 7:55 AM
Frontier Airlines
1 Stops
14h 24m
ONT - EWR
$ 268
Kiwi
Pick dates
1:18 PM - 5:40 PM
United Airlines
1 Stops
7h 13m
ONT - EWR
$ 291
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to Newark (EWR)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to Newark (EWR)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Newark (EWR)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.