Cheap flights from Phoenix to Chicago from $110

The month of May is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Phoenix averaging around $37.

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $353. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Phoenix because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $573.

Flying to Chicago O'Hare Intl Airport from Phoenix in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $323 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $480. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Phoenix Sky Harbor Intl to Chicago O'Hare Intl for the best Phoenix - Chicago O'Hare Intl flight prices

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $278 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Phoenix for as low as $234 on momondo.

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

United Airlines and Delta are the most popular carriers operating from Phoenix to Chicago O'Hare Intl

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Phoenix according to our data. American Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 6 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Phoenix and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 154 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.

Saturday 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 7% of their flights experiencing any sort of delay.

22 flights are operational daily from Phoenix to Chicago O'Hare Intl Airport as of May 2026. The most popular departure time for this route is 7:00AM, with 48% of flights per day taking off at noon.

As of May 2026, there are 159 flights per week flying from Phoenix to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Tue, with 35% of flights taking off on this day.