$112 Cheap Flights from Santa Rosa (STS) to Phoenix (PHX)

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.

*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.

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 December. 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 $112 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.