C$203 Cheap Flights from Phoenix (PHXA) to Santa Rosa (STS)

Compare Phoenix to Santa Rosa flight deals

Find the cheapest month or even day of the year to fly to Santa Rosa

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Flight deals from Phoenix to Santa Rosa Airport

Looking for a cheap last-minute deal or the best return flight from Phoenix to Santa Rosa Airport? If you want to travel next month, return fares start from C$399. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Phoenix to Santa Rosa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix to Santa Rosa flights are currently cheapest in April.

Which airlines fly from Phoenix to Santa Rosa?

Phoenix to Santa Rosa: Alternative routes

Compare routes from Phoenix to Santa Rosa below. You may find an airport to fly into that's cheaper, faster, or easier than Santa Rosa.

Phoenix to Santa Rosa: Flight information

The things to know before you go.
Cheapest flight foundC$202
Cheapest month to flyApril
Average flight time2 hrs, 19 mins
Most popular airlineAmerican Airlines
Average flights per week58

Finding cheap flights from Phoenix to Santa Rosa: Frequently asked questions

The best price we found for a return flight from Phoenix to Santa Rosa is C$401. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 19 minutes is the average flight time from Phoenix to Santa Rosa.
American Airlines, Alaska Airlines and Envoy Air fly direct from Phoenix to Santa Rosa.
As of March 2026, there are 58 flights per week flying from Phoenix to Santa Rosa.
The cheapest month to fly from Phoenix to Santa Rosa is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phoenix to Santa Rosa Airport on Wednesday, April 15, 2026.
Yes – the average flight time is 2 hours and 19 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Santa Rosa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Santa Rosa is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Phoenix to Sonoma County Airport (STS): what you need to know

  • Begin your trip planning by checking out the most convenient departure point for your flight from Phoenix to Sonoma County Airport (STS). Explore your options for leaving from Phoenix Sky Harbour International Airport (PHX) or Phoenix-Mesa Gateway Airport (AZA), two of the city's main airports.

  • Expect to be in the air for 2 hours 12 minutes. On average, that's the duration of a direct flight from Phoenix to Sonoma County Airport.

  • Santa Rosa's timezone is UTC-7, which is the same as Phoenix. Sonoma County Airport is located in Santa Rosa.

  • The busiest route is from Phoenix Sky Harbour International Airport (PHX) to Sonoma County Airport (STS), with 15 direct services every week. If you'd like to get going as soon as possible, the earliest flight from PHX to STS is the 10:04 American Airlines option. If you prefer travelling later, the last departure is at 14:35 with American Airlines.

  • For hassle-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your flight from Phoenix to STS.

  • Hopping on a plane during a peak time like July? Popular seasons (like Thanksgiving, Christmas/New Year and spring break) can easily add another hour at check-in and security. Be extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

Airports in Phoenix

Phoenix Sky Harbour International Airport (PHX)

  • Get to your destination in one go from Phoenix Sky Harbour International Airport (PHX). Direct flights from Phoenix to Sonoma County Airport (STS) are available from here.

  • You can get away on a direct flight from Phoenix to Sonoma County Airport with American Airlines. This leading airline offers services from PHX.

  • The distance from central Phoenix to PHX is around 8 kilometres. Use Google Maps for the best route, whether you prefer to drive or use public transport.

  • After a hassle-free start to your journey? Stay near Phoenix Sky Harbour International Airport. Whether you're taking an early flight from Phoenix to Sonoma County Airport or want to avoid feeling rushed, these hotels are the answer:

About Sonoma County Airport (STS)

Getting from Sonoma County Airport (STS) to central Santa Rosa

  • From Sonoma County Airport, Santa Rosa is approximately 13 kilometres away. It takes around 14 minutes to reach the centre driving.

  • If you're travelling on public transport, expect a journey time of roughly 36 minutes.

How to find the cheapest flights from Phoenix to Sonoma County Airport (STS)

  • Book a one-way ticket from Phoenix to Sonoma County Airport from C$203 or travel return from just C$401. Prices are accurate at the time of listing and may change based on availability when you book.

  • Don't wait until the last minute. You're more likely to find flight tickets from Phoenix to STS if you book early. Airlines often have some fantastic early bird rates.

  • The 'Whole month' search function shows you the cheapest tickets from Phoenix to Sonoma County Airport across the month. It's an easy way to snap up a bargain if your travel dates are flexible.

  • Create a Price Alert for flight tickets from Phoenix to STS. There's no need to search every day to see if prices have dropped. We'll tell you the moment there's a change in price.

  • Take advantage of the filters to find your ideal journey. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Phoenix to Sonoma County Airport, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and number of stops.

The best time to fly from Phoenix to Sonoma County Airport (STS)

  • October is the busiest month for flights from Phoenix to Sonoma County Airport. To skip the crowds, plan your trip to Santa Rosa in May when things are quieter.

  • Lock in your flight from Phoenix to STS for August if you're eager to explore the city during its warmest month. Expect temperatures in Santa Rosa to range from 11ºC to 29ºC.

  • February has average temperatures of between 2ºC and 19ºC. Search for cheap flights from Phoenix to Sonoma County Airport sometime around then if you want to travel when it's cooler.

More about Santa Rosa

  • When it comes to looking for somewhere to lay your head, you'll find the most popular stays in Santa Rosa right here. Browse these hotels once you've locked in your flight from Phoenix to Sonoma County Airport:

  • All great journeys should include a little sightseeing. Safari West, Annadel State Park and Pacific Coast Air Museum are must-visits when exploring Santa Rosa.

Complete your Santa Rosa trip with a car rental

  • Finding you a cheap flight from Phoenix to Sonoma County Airport isn't the only trick up our sleeve. Check out our car rentals in Santa Rosa and explore on your own terms. We search for deals from trusted car rental companies and put them all in one place. Instantly compare rates and then book with no fees.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.