$152 Cheap Flights from Phoenix (PHX) to Santa Rosa (STS)

View $152 flight on Tue, May 13, 2025Opens in a new window
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Cheap Flights from Phoenix to Santa Rosa (PHX-STS)

Prices were available within the past 7 days and start at $152 for one-way flights and $305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 31 - Tue, Jun 3
PHX
Phoenix
STS
Santa Rosa
$305 Roundtrip, found 5 hours ago
$305
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, May 31 from Phoenix to Santa Rosa, returning Tue, Jun 3, priced at $305 found 5 hours ago
American Airlines
Sat, May 17 - Tue, May 20
PHX
Phoenix
STS
Santa Rosa
$318 Roundtrip, found 5 days ago
$318
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, May 17 from Phoenix to Santa Rosa, returning Tue, May 20, priced at $318 found 5 days ago
Hawaiian Airlines
Tue, May 20 - Sat, May 24
PHX
Phoenix
STS
Santa Rosa
$344 Roundtrip, found 6 days ago
$344
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, May 20 from Phoenix to Santa Rosa, returning Sat, May 24, priced at $344 found 6 days ago
American Airlines
Wed, Aug 20 - Sun, Aug 24
PHX
Phoenix
STS
Santa Rosa
$345 Roundtrip, found 11 hours ago
$345
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, Aug 20 from Phoenix to Santa Rosa, returning Sun, Aug 24, priced at $345 found 11 hours ago
American Airlines
Wed, Sep 17 - Sun, Sep 21
PHX
Phoenix
STS
Santa Rosa
$345 Roundtrip, just found
$345
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 17 from Phoenix to Santa Rosa, returning Sun, Sep 21, priced at $345 just found
Alaska Airlines
Tue, Jun 3 - Sat, Jun 14
PHX
Phoenix
STS
Santa Rosa
$348 Roundtrip, found 1 day ago
$348
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Jun 3 from Phoenix to Santa Rosa, returning Sat, Jun 14, priced at $348 found 1 day ago
Alaska Airlines
Wed, Jun 4 - Sat, Jun 14
PHX
Phoenix
STS
Santa Rosa
$348 Roundtrip, found 1 day ago
$348
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Jun 4 from Phoenix to Santa Rosa, returning Sat, Jun 14, priced at $348 found 1 day ago
American Airlines
Thu, May 22 - Thu, May 29
PHX
Phoenix
STS
Santa Rosa
$350 Roundtrip, found 2 days ago
$350
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, May 22 from Phoenix to Santa Rosa, returning Thu, May 29, priced at $350 found 2 days ago
Alaska Airlines
Sat, May 31 - Tue, Jun 3
PHX
Phoenix
STS
Santa Rosa
$353 Roundtrip, found 5 hours ago
$353
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, May 31 from Phoenix to Santa Rosa, returning Tue, Jun 3, priced at $353 found 5 hours ago
Alaska Airlines
Thu, May 29 - Wed, Jun 4
PHX
Phoenix
STS
Santa Rosa
$354 Roundtrip, found 1 day ago
$354
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, May 29 from Phoenix to Santa Rosa, returning Wed, Jun 4, priced at $354 found 1 day ago
Flights from Phoenix (PHX) to Santa Rosa (STS)
Origin airport
Sky Harbor Intl.
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$305
Distance
697 mi

Phoenix to Santa Rosa Flights

The cheapest times to fly from Phoenix to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Santa Rosa are during the month of May. You can find some of the cheapest flights from Phoenix to Santa Rosa with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Phoenix to Santa Rosa

Sunday is one of the best days to book for cheap flights from Phoenix to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Phoenix to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $152 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS) cost?
Cheap return fares from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS) start at $305. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving PHX on May 21 2025 and touching down at STS. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from PHX to STS?
The cheapest flights from PHX to STS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
When heading out of Sky Harbor Intl. Airport (PHX), you can take a nonstop flight to Sonoma County Airport (STS) with American Airlines.
What is the cheapest airline that flies from PHX to STS?
Right now, the cheapest airline offering one-way flights from PHX to STS is Alaska Airlines. You can jet off on this route from $188. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHX on June 11 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
On average, just 1 nonstop flight departs daily from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS). Need more options? Use Expedia’s filters to find flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
The 11 AM departures from PHX to STS are the most sought after. They can also be more expensive. If you want to save on your trip, book during off-peak hours.
What day of the week has the most flights from PHX to STS?
If you travel on a Sunday, you’ll get the greatest range of options for flights from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS).
What is the earliest flight from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
Sky Harbor Intl. Airport (PHX)’s first flight to Sonoma County Airport (STS) leaves at approximately 11:04AM UTC-7. With a total journey time of 2h 24m, you’ll land at around 12:28PM UTC-8.
How long does it take to fly from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
Typically, it takes 2 hours and 24 minutes to travel the 700 mi from PHX to STS.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
To avoid possible delays on the Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Santa Rosa from Sky Harbor Intl. Airport (PHX)?
Sky Harbor Intl. Airport (PHX) has direct flights to Santa Rosa. These are some of the airports you can fly to without stops:

  • San Francisco Intl. Airport (SFO)
  • Oakland Intl. Airport (OAK)
  • Sonoma County Airport (STS)

Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS) last-minute?
Last-minute bookings from PHX to STS are typically more expensive. For the best rates, start looking for flights ahead of time. That said, if you’re flexible with your travel dates, you may score a cheap fare right before you leave.
Is it cheaper to book a PHX to STS flight and hotel package?
Booking a PHX to STS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our wide range of hotels and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Sonoma County Airport (STS)?
Typically, you can cancel or reschedule your PHX to STS flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline’s fees and guidelines on flight changes, or if you’d like further information, visit our Customer Service portal.

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*Available to One Key members.