$202 Cheap American Airlines flights Santa Rosa (STS) to Phoenix (PHX)

Scoring cheap one-way American Airlines flights from STS to PHX from $202 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $305 for your next exciting getaway.**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.

To find cheap American Airlines fares from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall price. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**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 STS to PHX departs at 12:58PM UTC-8, landing at 4:03PM UTC-7. If you'd like to set off later in the day, the last American Airlines flight leaves STS at 12:58PM UTC-8 and lands at PHX at 4:03PM UTC-7. Flying before midday is generally a smart choice 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.