Cheap flights from Ontario to Phoenix from $55

In general, September is the cheapest month to fly from Ontario to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $151. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $195.

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Ontario is on a Friday. momondo users have found tickets for Friday departures for as low as $232. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $320. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

At noon is the cheapest time of day to fly from Ontario to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $189. Flying to Phoenix Sky Harbor Intl Airport at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $298. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $269 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Ontario for as low as $171 on momondo.

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

No. A direct flight is the cheapest option for a flight between Ontario to Phoenix Sky Harbor Intl Airport.

As of June 2026, prices for Ontario to Phoenix Sky Harbor Intl Airport flights are approximately 143% more expensive when compared to flights at the same time last year.

Southwest is the most popular carrier operating from Ontario to Phoenix Sky Harbor Intl

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Ontario according to our data. Frontier is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 7 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.

As of June 2026, 7 flights take off from Ontario and land in Phoenix Sky Harbor Intl Airport each day. The most common flight departure time for this route is 1:00PM, with 40% of daily flights taking off in the afternoon.

The number of flights available between Ontario and Phoenix Sky Harbor Intl Airport is 54 per week as of June 2026. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.