$109 Cheap Flights from Santa Rosa (STS) to Phoenix (PHX)

View $109 flight on Wed, Sep 23, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $109 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Nov 10 - Sat, Nov 14
STS
Santa Rosa
PHX
Phoenix
$217 Roundtrip, found 11 hours ago
$217
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Nov 10 from Santa Rosa to Phoenix, returning Sat, Nov 14, priced at $217 found 11 hours ago
Southwest Airlines
Mon, Sep 21 - Fri, Sep 25
STS
Santa Rosa
PHX
Phoenix
$236 Roundtrip, found 2 days ago
$236
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Mon, Sep 21 from Santa Rosa to Phoenix, returning Fri, Sep 25, priced at $236 found 2 days ago
Delta
Fri, Oct 16 - Tue, Oct 20
STS
Santa Rosa
PHX
Phoenix
$237 Roundtrip, found 4 hours ago
$237
Roundtrip
found 4 hours ago
Select Delta flight, departing Fri, Oct 16 from Santa Rosa to Phoenix, returning Tue, Oct 20, priced at $237 found 4 hours ago
Alaska Airlines
Wed, Dec 2 - Sun, Dec 6
STS
Santa Rosa
PHX
Phoenix
$237 Roundtrip, found 12 hours ago
$237
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed, Dec 2 from Santa Rosa to Phoenix, returning Sun, Dec 6, priced at $237 found 12 hours ago
Southwest Airlines
Wed, Sep 2 - Sat, Sep 5
STS
Santa Rosa
PHX
Phoenix
$242 Roundtrip, found 4 days ago
$242
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Wed, Sep 2 from Santa Rosa to Phoenix, returning Sat, Sep 5, priced at $242 found 4 days ago
Southwest Airlines
Wed, Aug 12 - Wed, Aug 19
STS
Santa Rosa
PHX
Phoenix
$243 Roundtrip, found 13 hours ago
$243
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Wed, Aug 12 from Santa Rosa to Phoenix, returning Wed, Aug 19, priced at $243 found 13 hours ago
Southwest Airlines
Wed, Aug 12 - Wed, Aug 19
STS
Santa Rosa
PHX
Phoenix
$246 Roundtrip, found 13 hours ago
$246
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Wed, Aug 12 from Santa Rosa to Phoenix, returning Wed, Aug 19, priced at $246 found 13 hours ago
Alaska Airlines
Tue, Nov 10 - Sat, Nov 14
STS
Santa Rosa
PHX
Phoenix
$257 Roundtrip, found 11 hours ago
$257
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Nov 10 from Santa Rosa to Phoenix, returning Sat, Nov 14, priced at $257 found 11 hours ago
Alaska Airlines
Thu, Nov 12 - Tue, Nov 17
STS
Santa Rosa
PHX
Phoenix
$262 Roundtrip, found 13 hours ago
$262
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Nov 12 from Santa Rosa to Phoenix, returning Tue, Nov 17, priced at $262 found 13 hours ago
American Airlines
Wed, Aug 19 - Wed, Aug 26
STS
Santa Rosa
PHX
Phoenix
$357 Roundtrip, found 8 hours ago
$357
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Aug 19 from Santa Rosa to Phoenix, returning Wed, Aug 26, priced at $357 found 8 hours ago

What you need to know for your flight from Sonoma County to Sky Harbor Intl.

Santa Rosa (STS) to Phoenix (PHX) at a glance

Travel to Phoenix (PHX) from Santa Rosa (STS) with a selection of airlines operating this popular short-haul route. Choose between full-service and low-cost carriers to find the best flight that matches your budget and schedule. With weekly flights available, planning your next adventure to explore Phoenix's renowned attractions and neighborhoods is easy. Check out the essential details for flights from Sonoma County Airport to Sky Harbor International Airport.

  • Fastest flight duration: around 2 hours non-stop
  • Route distance: roughly 700 miles (1,130 km)
  • Flights per week: around 10 departures on average
  • Typical fares (one-way): economy tickets often range from $150–$360, depending on seasonality and how far ahead you book

Flights from Sonoma County Airport (STS) to Sky Harbor International Airport (PHX)

Based on recent traveler preferences, here are the top airlines flying from Santa Rosa to Phoenix, commonly selected for either non-stop or one-stop flights. Many of these itineraries include a convenient layover at San Diego International Airport (SAN), which has an average duration of about 55 minutes. This allows you to customize your journey by balancing price, total travel time, and cabin class to secure the ideal itinerary.

  • American Airlines: This major carrier provides non-stop flights, dominating the route with around 80% of departures. One-way ticket prices generally fall between $150 and $375, and the travel duration is approximately 2 hours.
  • Alaska Airlines: Offering both non-stop and one-stop options, this full-service airline accounts for about 18% of flights on this route. One-way fares typically range from $150 to $375, with non-stop flights taking around 2 hours.
  • Southwest Airlines: A budget-friendly option, this airline provides one-stop service with one-way fares usually between $150 and $280. It represents roughly 2% of departures, with a total journey time of about 4 hours and 15 minutes, including a layover of 3 hours and 15 minutes in the air.

Travelers flying from Santa Rosa to Phoenix can enhance their journey by upgrading to first class, with American Airlines providing premium service on this route.

Best time to fly from Santa Rosa (STS) to Phoenix (PHX)

The most popular months for travelers flying from Santa Rosa to Phoenix are January, March, and April, when peak temperatures in Phoenix reach up to 74.5°F in April. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 89.8°F. For better deals, May usually offers the lowest average one-way fare around $217. Flight availability peaks in April, October, and November, with approximately 12 flights per week, making it easier to find convenient departure times. July has the fewest flights, with approximately 8 flights per week.

  • Cheapest time to fly: May usually offers good deals with average one-way fare around $217, roughly 11% cheaper than the yearly average.
  • More budget-friendly months to fly: September and January typically offer average one-way fares of around $232.
  • Most flight options: April, October, and November have the highest number of flights from Santa Rosa to Phoenix, with approximately 12 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January55.4°F (13.0°C)High10$232
February58.6°F (14.8°C)Average9$240
March66.0°F (18.9°C)High11$247
April74.5°F (23.6°C)High12$239
May82.0°F (27.8°C)Average9$217
June92.3°F (33.5°C)Low9$252
July95.7°F (35.4°C)Low8$242
August94.8°F (34.9°C)Average10$251
September89.8°F (32.1°C)Low11$231
October77.7°F (25.4°C)Average12$241
November65.5°F (18.6°C)Average12$282
December55.4°F (13.0°C)Average11$258

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Santa Rosa (STS) to Phoenix (PHX)

  • Santa Rosa to Scottsdale (STS-SCF): Located roughly 14 miles from Sky Harbor International Airport (PHX), Scottsdale Airport (SCF) serves the region.
  • Santa Rosa to Mesa (STS-AZA): Phoenix - Mesa Gateway Airport (AZA) lies about 22 miles away from Sky Harbor International Airport (PHX).
  • Novato to Phoenix (NOT-PHX): Gnoss Field Airport (NOT) is around 29 miles distant from Sonoma County Airport (STS).

How to find the best prices for flights from Santa Rosa (STS) to Phoenix (PHX)

Getting some of the best deals on flights from Santa Rosa to Phoenix is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically found when booking at least two months in advance, although most travelers book their flights two to eight weeks ahead. Morning departures, from 5 a.m. to 12 p.m., usually offer lower prices, while afternoon flights from 12 p.m. to 6 p.m. are more popular. Additionally, flying on Saturday often results in cheaper fares, even though Friday is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sky Harbor International Airport from Sonoma County Airport

Phoenix welcomes travelers from Santa Rosa with a range of transport options based on price, convenience, and proximity. For departures, Sonoma County Airport is roughly a 10-minute drive (covering about 9 miles) from central Santa Rosa. Here's how to reach Phoenix efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Phoenix, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Sky Harbor International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sky Harbor International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Sky Harbor International Airport, two key public transport options are easily accessible on foot; Terminal 3 Station, a metro station, is located about 0.1 miles from the airport, while Phoenix Airport Bus Stop, a bus station, is situated about 0.2 miles away.

Frequently asked questions

How much does a flight from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find cheap one-way flights from $109 and cheap return flights from $217 Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) with Expedia. One-way flights generally range between $213 and $943, and roundtrip flights usually range from $382 to $1566. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
January is the cheapest month to fly from Santa Rosa to Phoenix, with average return fares around $389. This price is about 13% lower than the average throughout the year, likely due to reduced travel demand after the holiday season. Other economical months to consider are February and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
American Airlines operates around 19 direct flights from STS to PHX every week.
What is the cheapest airline that flies from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
JetBlue Airways is one of the cheapest airlines offering connecting flights from Santa Rosa, CA (STS) to Phoenix, AZ (PHX) with return tickets starting from around $481 with a layover in John F. Kennedy Intl. (JFK). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best airline to fly with from Santa Rosa, CA (STS) to Phoenix, AZ (PHX) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Santa Rosa to Phoenix, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
When flying from Santa Rosa (STS) to Phoenix (PHX), January and September are the best months to consider. Both months have average return flight prices around $389, providing good value. January allows you to escape the winter blues, while September offers pleasant weather, enhancing your travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
On average, there are around 3 nonstop flights per day from Sonoma County (STS) to Sky Harbor Intl. (PHX). For more options, look at flights that include layovers.
What is the earliest flight from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The earliest flight from Sonoma County Airport (STS) to Phoenix Sky Harbor International Airport (PHX) usually departs at around 6:00 AM local time, with service from Alaska Airlines and American Airlines. This seasonal service is available in September, allowing you to start your day early in Phoenix. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The most popular departure times for flights from Santa Rosa, CA (STS) to Phoenix, AZ (PHX) are in the early afternoon, from 12pm to 3pm. About 40% of passengers prefer this time window. Many major carriers, including American Airlines and Alaska Airlines, offer flights during this window. This timing works well because it allows you to enjoy a leisurely morning before heading to the airport.
How long does it take to fly from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A nonstop flight from STS to PHX typically takes around 2 hours 20 minutes, covering approximately 697 miles. Connecting flights on this route usually add 4 hours to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
First class seats are offered on the STS to PHX route with American Airlines.
How much is a business class flight from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A direct, return business class ticket from Santa Rosa (STS) to Phoenix (PHX) typically costs between $1,046 - $1,610. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Phoenix from Sonoma County (STS)?
If you're planning to travel to Phoenix from Sonoma County (STS), you can fly into Sky Harbor Intl. (PHX) Some flights may connect through major hubs like John Wayne (SNA), Los Angeles Intl. (LAX), Harry Reid Intl. (LAS) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) Phoenix Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Santa Rosa, CA (STS-Sonoma County) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sonoma County
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines
Roundtrip price
$215
Distance
697 mi
Average flight time
2 hours 10 mins

Book with confidence

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 November. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $109 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.

 

Santa Rosa to Phoenix Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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