$101 Cheap Flights from Santa Rosa (STS) to Phoenix (PHX)

View $101 flight on Sat, Feb 28, 2026Opens in a new window

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Phoenix Sky Harbor Intl. Airport (PHX)

Cheap Flights from Santa Rosa to Phoenix (STS-PHX)

Prices were available within the past 7 days and start at $101 for one-way flights and $176 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Feb 11 - Wed, Feb 18
STS
Santa Rosa
PHX
Phoenix
$176 Roundtrip, found 6 days ago
$176
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 11 from Santa Rosa to Phoenix, returning Wed, Feb 18, priced at $176 found 6 days ago
Alaska Airlines
Wed, Feb 11 - Wed, Feb 18
STS
Santa Rosa
PHX
Phoenix
$189 Roundtrip, found 6 days ago
$189
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 11 from Santa Rosa to Phoenix, returning Wed, Feb 18, priced at $189 found 6 days ago
Alaska Airlines
Tue, Jan 13 - Fri, Jan 23
STS
Santa Rosa
PHX
Phoenix
$191 Roundtrip, found 6 days ago
$191
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Santa Rosa to Phoenix, returning Fri, Jan 23, priced at $191 found 6 days ago
Hawaiian Airlines
Tue, Feb 3 - Tue, Feb 10
STS
Santa Rosa
PHX
Phoenix
$203 Roundtrip, found 7 hours ago
$203
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Tue, Feb 3 from Santa Rosa to Phoenix, returning Tue, Feb 10, priced at $203 found 7 hours ago
Alaska Airlines
Fri, Feb 6 - Sun, Feb 8
STS
Santa Rosa
PHX
Phoenix
$206 Roundtrip, found 6 days ago
$206
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Feb 6 from Santa Rosa to Phoenix, returning Sun, Feb 8, priced at $206 found 6 days ago
Hawaiian Airlines
Tue, Feb 3 - Sat, Feb 7
STS
Santa Rosa
PHX
Phoenix
$212 Roundtrip, found 7 hours ago
$212
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Tue, Feb 3 from Santa Rosa to Phoenix, returning Sat, Feb 7, priced at $212 found 7 hours ago
Hawaiian Airlines
Mon, Feb 9 - Tue, Feb 10
STS
Santa Rosa
PHX
Phoenix
$217 Roundtrip, found 7 hours ago
$217
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Mon, Feb 9 from Santa Rosa to Phoenix, returning Tue, Feb 10, priced at $217 found 7 hours ago
Hawaiian Airlines
Wed, Dec 3 - Sat, Dec 6
STS
Santa Rosa
PHX
Phoenix
$220 Roundtrip, found 8 hours ago
$220
Roundtrip
found 8 hours ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Santa Rosa to Phoenix, returning Sat, Dec 6, priced at $220 found 8 hours ago
American Airlines
Sat, Dec 13 - Wed, Dec 17
STS
Santa Rosa
PHX
Phoenix
$305 Roundtrip, just found
$305
Roundtrip
just found
Select American Airlines flight, departing Sat, Dec 13 from Santa Rosa to Phoenix, returning Wed, Dec 17, priced at $305 just found
Southwest Airlines
Wed, Jul 15 - Sat, Jul 18
STS
Santa Rosa
PHX
Phoenix
$325 Roundtrip, found 5 days ago
$325
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Jul 15 from Santa Rosa to Phoenix, returning Sat, Jul 18, priced at $325 found 5 days ago

Find the cheapest month to fly from Santa Rosa (STS) to Phoenix (PHX)

September is typically the cheapest month to fly

From $232 - $433 per traveler.

Alternative airports near Phoenix

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $340
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $340
Flights from Santa Rosa (STS) to Phoenix (PHX)
Origin airport
Sonoma County
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$176
Distance
697 mi
Average flight time
2 hours 34 mins

Santa Rosa to Phoenix Flights

The cheapest times to fly from Santa Rosa to Phoenix

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 Santa Rosa to Phoenix are during the month of February. You can find some of the cheapest flights from Santa Rosa to Phoenix with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Santa Rosa to Phoenix: 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 Santa Rosa to Phoenix

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 Santa Rosa to Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $101 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 Santa Rosa to Phoenix 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 Santa Rosa to Phoenix 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 Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX) cost?
Get a cheap one-way flight from $101 or cheap return flight from $176 from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
February is the most affordable month to fly from STS to PHX. Traveling outside of peak seasons is often the key to better flight prices.
Which airlines fly direct from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
Jump on a direct flight with American Airlines and travel straight from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX).
What is the cheapest airline that flies from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest STS to PHX flight.
How many flights per day from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
On average, only 1 direct flight departs daily from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX). Want additional options? Use our filter tool to find flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
More travelers fly between STS and PHX at 12 PM than at any other time. Prefer a quieter experience? Consider flying outside peak hours and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from STS to PHX?
If you fly on a Friday, you'll get the widest range of options for flights from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX).
What is the earliest flight from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
Sonoma County Airport (STS)'s earliest flight to Sky Harbor Intl. Airport (PHX) takes off at approximately 12:58PM UTC-8. With a travel duration of 2h 5m, you'll arrive at around 4:03PM UTC-7.
How long does it take to fly from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
Typically, it takes 2 hours and 5 minutes to travel the 700 mi from STS to PHX.
What is the best time to fly from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
To reach Sky Harbor Intl. Airport (PHX) without delays, pick a flight that takes off from Sonoma County Airport (STS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Phoenix from Sonoma County Airport (STS)?
If you've booked a direct flight from Sonoma County Airport (STS) to Phoenix, Sky Harbor Intl. Airport (PHX) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX) last-minute?
Holding off until right before your break to book a flight from STS to PHX often results in higher prices. While you might find some last-minute discounts, there's no guarantee. Be flexible with your travel plans to boost your chances of scoring a bargain.
Is it cheaper to book a STS to PHX flight and hotel package?
Compared with arranging hotels and flights separately, booking a STS to PHX flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place takes the hassle out of planning your trip. Simply pick your flights and choose from our extensive range of stays, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Sonoma County Airport (STS) to Sky Harbor Intl. Airport (PHX)?
If you reserved your STS to PHX flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.