There are most likely no direct flights on the Phoenix — Ontario route
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The cost of a one-way flight from Phoenix to Ontario ranges from $56 (December 2026) to $88 (October 2026). On average, the ticket price is about $65–$68.
A non-stop flight is the most convenient and comfortable way to fly from Phoenix to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Ticket prices for Phoenix — Ontario are higher at the start and end of the period but lowest in the middle. This creates a convenient window for booking at a reduced price.
Prices fall from October 2026 to December 2026 (37%), then rise from December 2026 to January 2027 (+16%). The best period is November 2026–December 2026 ($59), the most expensive is October 2026–November 2026 ($75).
The best time to buy is November 2026–December 2026, when prices are at their lowest. This can save you up to 21% compared to the expensive months (October 2026–November 2026).
Monthly price variation is 18%. On this route, your departure date noticeably affects the cost, and choosing wisely can lead to real savings.
There are most likely no direct flights on the Phoenix — Ontario route
All airports
Phoenix — Ontario
10/24/2026
Departure
Direct flight
WN1734
starting at $271
Phoenix — Ontario
11/02/2026
Departure
Direct flight
WN471
starting at $298
Flights from Phoenix to Ontario are operated by several airlines — Southwest Airlines, United Airlines, and Frontier Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $146, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
The cheapest flight ticket from Phoenix to Ontario according to data for the last 48 hours costs $146
Often the best time to buy tickets from Phoenix to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Phoenix to Ontario can be found flying in these months: December, November, January.
The fastest flights from Phoenix to Ontario start from 5 hours 23 minutes in the air.
The following airlines operate direct flights on the route Phoenix — Ontario: Southwest Airlines
The cheapest one-way flight from Phoenix to Ontario departs on 11/01/2026, is operated by United Airlines and costs $146
There is no information about the cheapest roundtrip flight from Phoenix to Ontario
Fastest flight from Phoenix to Ontario takes 5h 23m
There are direct flights on this route 2 days a week: Mo and Sa
The distance between Phoenix and Ontario is 518km (321 miles). There are 58 direct flights from Phoenix to Ontario. The time difference between Phoenix and Ontario is 1h. Flights from Phoenix begin at 8:05 AM. The latest flight from Phoenix departs at 9:10 PM
We couldn't find any special offers for flights from Phoenix to Ontario
