$100 Cheap United flights Chicago (ORD) to Phoenix (PHX)

You can discover cheap round-trip United Airlines flights from $214 from ORD to PHX by filtering your results from “Price (lowest to highest)” on Expedia. Or look for options from $100 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

July is one of the cheapest months to jet away to Phoenix with United Airlines. You could also find great deals on return and one-way tickets in August.

Search for affordable United Airlines flights from O’Hare Intl. Airport (ORD) to Sky Harbor Intl. Airport (PHX) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

United Airlines offers direct flights from O’Hare Intl. Airport (ORD) to Sky Harbor Intl. Airport (PHX), with 35 departures every week. Simply apply the “Nonstop” and “Airline” filters during your search on Expedia to show all direct United Airlines flights to PHX.

It takes around 4h 2m to travel nonstop from O’Hare Intl. Airport (ORD) to Sky Harbor Intl. Airport (PHX) with United Airlines.

Saturday has the most United Airlines flights from O’Hare Intl. Airport (ORD) to Sky Harbor Intl. Airport (PHX). With 5 daily departures, this is the best day to find something that will suit your plans.

Jetting off from ORD at 9:18AM UTC-6, the first United Airlines flight to PHX lands at 12:23PM UTC-7. Flying earlier in the day means you’re less likely to encounter delays.* Prefer a later start? The last United Airlines flight from ORD to PHX departs at 8:13PM UTC-6 and touches down at 11:14PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Sky Harbor Intl. Airport (PHX) is the primary Phoenix gateway for United Airlines flights from O’Hare Intl. Airport (ORD).

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to leave from ORD to PHX with United Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* on top of United Airlines’s loyalty program earnings. It’s yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be on a Boeing 737 MAX 9 or a Boeing 737-900 when flying United Airlines from O’Hare Intl. Airport (ORD) to Sky Harbor Intl. Airport (PHX). However, keep in mind that a different plane may be assigned depending on operational demands.

Depending on the type of fare you purchased, a fee is typically charged if you change or cancel your flight more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when you search for flights. For more information on changing or canceling your reservation, head to “Trips,” select your flight and tick “Manage Booking.”