Cheap flights from Chicago to Phoenix from $123

If you are unable to visit Phoenix during the month of January, then departing from Chicago during the month September is also very affordable. Most momondo users find prices during this month for around $266.

On average, the least expensive day to fly to Phoenix from Chicago is on a Saturday. momondo users have found tickets for Saturday departures for as low as $301. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $360.

The cheapest time of day to fly to Phoenix is in the evening when flights can be purchased for as low as $295. In the afternoon is when there is more demand to fly to Phoenix, so prices are often more expensive at around $331 per ticket.

Fly from Chicago Greater Rockford to Phoenix-Mesa Gateway for the best Chicago - Phoenix flight prices

You are more likely to see cheaper flights to Phoenix from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix for around $309 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix from Chicago for as low as $261 on momondo.

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

Allegiant Air, Southwest, and United Airlines are the most popular carriers operating from Chicago to Phoenix

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Phoenix from Chicago according to our data. American Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Phoenix. Keep in mind that there are 8 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Chicago and Phoenix have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

The number of flights available between Chicago and Phoenix is 51 per day as of August 2026. The most frequent departure time is 6:00PM, with 39% of daily flights leaving in the evening.

As of August 2026, there are 362 flights per week flying from Chicago to Phoenix. The most common day of the week flights depart is Sun, with 18% of flights taking off on this day.