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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 May , June 2026

27 May - 30 Jun $ 342.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
Frontier Airlines
1 STOPS
ONT
Ontario
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28 May - 11 Jun $ 779.00
ONT
Ontario
Alaska Airlines
2 STOPS
PHX
Phoenix
PHX
Phoenix
Alaska Airlines
1 STOPS
ONT
Ontario
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29 May - 06 Jun $ 4,998.00
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

29 May - 31 May $ 558.00
ONT
Ontario
United Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
United Airlines
1 STOPS
ONT
Ontario
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26 May - 31 May $ 570.00
ONT
Ontario
United Airlines
1 STOPS
PHX
Phoenix
PHX
Phoenix
United Airlines
1 STOPS
ONT
Ontario
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29 May - 31 May $ 657.00
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

5:00 AM - 11:25 AM
United Airlines
1 Stops
7h 25m
ONT - PHX
$ 195
Kiwi
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6:00 AM - 10:05 AM
United Airlines
1 Stops
6h 27m
ONT - PHX
$ 230
Kiwi
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6:00 AM - 8:04 AM
United Airlines
1 Stops
4h 10m
ONT - PHX
$ 267
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.