$49 Cheap American Airlines flights Ontario (ONT) to Phoenix (PHX)

You'll discover budget-friendly return American Airlines flights from $97 from ONT to PHX by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $49 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.

Start searching one to three months before your departure to find cheaper fares on American Airlines flights from Los Angeles - Ontario Intl. Airport (ONT) to Sky Harbor Intl. Airport (PHX). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic trips.*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.

The earliest American Airlines flight from ONT to PHX takes off at 6:10AM UTC-8, arriving at 8:34AM UTC-7. If you'd like to head off later, the last American Airlines flight leaves ONT at 7:30PM UTC-8 and touches down at PHX at 9:49PM UTC-7. Flying early is generally a smart option as morning and mid-morning flights tend to experience fewer cancellations.**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.