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Cheap flights from Ontario (ONT) to Phoenix (PHX)

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

How to find the cheapest flight from Ontario (ONT) to Phoenix (PHX)
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How to find the cheapest flight from Ontario (ONT) to Phoenix (PHX)
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How to find the cheapest flight from Ontario (ONT) to Phoenix (PHX)
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Cheap flights from Ontario to Phoenix in April , May 2026

28 Apr - 02 May $ 133.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
15 Apr - 06 May $ 666.00
ONT
Ontario
Alaska Airlines
2 STOPS
PHX
Phoenix
PHX
Phoenix
Alaska Airlines
1 STOPS
ONT
Ontario
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15 Apr - 06 May $ 783.00
ONT
Ontario
Alaska Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Alaska Airlines
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to Phoenix

28 Apr - 01 May $ 164.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
15 Apr - 01 May $ 682.00
ONT
Ontario
Alaska Airlines
2 STOPS
PHX
Phoenix
PHX
Phoenix
Alaska Airlines
1 STOPS
ONT
Ontario
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15 Apr - 30 Apr $ 689.00
ONT
Ontario
United Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
United Airlines
1 STOPS
ONT
Ontario
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One-way flights to Phoenix from Ontario

11:44 AM - 4:30 PM
Frontier Airlines
1 Stops
6h 13m
ONT - PHX
$ 57
Kiwi
Pick dates
1:27 PM - 4:21 PM
United Airlines
1 Stops
5h 8m
ONT - PHX
$ 234
Kiwi
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6:49 PM - 9:27 PM
United Airlines
1 Stops
5h 10m
ONT - PHX
$ 234
Kiwi
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How to find the cheapest flight from Ontario (ONT) to Phoenix (PHX)

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