Cheap flights from Chicago O'Hare Intl Airport to Phoenix from $128

In general, August is the cheapest month to fly from Chicago O'Hare Intl Airport to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $237. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of August, then departing from Chicago O'Hare Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $242.

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Chicago O'Hare Intl Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $298. 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 $360. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

In the evening is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $291. Flying to Phoenix Sky Harbor Intl Airport in the evening 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 $322. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $294 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 Chicago O'Hare Intl Airport for as low as $257 on momondo.

There are 4 cabin classes available to choose from on Chicago O'Hare Intl Airport 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.

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

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Chicago O'Hare Intl Airport according to our data. American Airlines is the first choice among our users, with 35% 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.

Historically, on average around 19% 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 156 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. Monday 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 15% of their flights experiencing any sort of delay.

Des Moines (DSM) was the most common stop: 86% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $116.

Flights connecting via Des Moines (DSM) have the shortest average one-way travel time: 5h 57m.

Des Moines (DSM) has the shortest average layover time for this route: 1h 33m.

47 flights are operational daily from Chicago O'Hare Intl Airport to Phoenix Sky Harbor Intl Airport as of June 2026. The most popular departure time for this route is 8:00PM, with 42% of flights per day taking off in the afternoon.

330 flights are operational weekly from Chicago O'Hare Intl Airport to Phoenix Sky Harbor Intl Airport as of June 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.