Cheap flights from Ontario to Arizona from $58

The month of April is, on average, the cheapest month to fly to Arizona from Ontario, with most prices found around $262. If you aren’t able to travel to Arizona during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $265.

On average, the least expensive day to fly to Arizona from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $413. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Arizona is Sunday, with ticket prices averaging around $509.

Our most recent data shows that the best time of day to fly to Arizona is in the afternoon. Flights from Ontario to Arizona during this time can be as low as $405. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $467 on average. Flights to Arizona from Ontario in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Ontario to Phoenix Sky Harbor Intl for the best Ontario - Arizona flight prices

You are more likely to see cheaper flights to Arizona from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Arizona for around $303 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Arizona from Ontario for as low as $197 on momondo.

There are 4 cabin classes available to choose from on Ontario to Arizona flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest, United Airlines, and American Airlines are the most popular carriers operating from Ontario to Arizona

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to Arizona from Ontario according to our data. Frontier is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Arizona. Keep in mind that there are 9 different airlines that fly to Arizona on a routine basis, so you have a few additional options to choose from.

The number of flights available between Ontario and Arizona is 3 per day as of September 2026. The most frequent departure time is 1:00PM, with 51% of daily flights leaving in the afternoon.

26 flights are operational weekly from Ontario to Arizona as of September 2026. The most popular departure day for this route is Mon, with 35% of flights per week taking off on this day.