Cheap flights from Santa Rosa to Phoenix Sky Harbor

Compare Santa Rosa to Phoenix Sky Harbor flight deals

Find the cheapest month or even day of the year to fly to Phoenix Sky Harbor

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Find the cheapest month to fly from Santa Rosa to Phoenix Sky Harbor

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

Direct flights from Santa Rosa to Phoenix Sky Harbor

Santa Rosa to Phoenix Sky Harbor: Alternative routes

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

Santa Rosa to Phoenix: Flight information

The things to know before you go.
Cheapest flight found$156
Cheapest month to flyApril
Average flight time2 hrs, 8 mins
Most popular airlineAmerican Airlines
Average flights per week54

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

The best price we found for a return flight from Santa Rosa to Phoenix Sky Harbor is $424. 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 8 minutes is the average flight time from Santa Rosa to Phoenix Sky Harbor.
American Airlines, Alaska Airlines and Envoy Air fly direct from Santa Rosa to Phoenix Sky Harbor.
As of March 2026, there are 54 flights per week flying from Santa Rosa to Phoenix Sky Harbor.
The cheapest month to fly from Santa Rosa to Phoenix Sky Harbor is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Santa Rosa Airport to Phoenix Sky Harbor Airport on Monday, 4 May 2026.
Yes – the average flight time is 2 hours and 8 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 Phoenix Sky Harbor 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 Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to Phoenix Sky Harbor.

Travelling from Sonoma County Airport (STS) to Phoenix Sky Harbour International Airport (PHX): what you need to know

  • The average time for a direct flight from Sonoma County Airport to Phoenix Sky Harbour International Airport is 2 hours 5 minutes.

  • Phoenix's timezone is UTC-7, which is the same as Santa Rosa.

  • Flights from STS to PHX start from 12:45 — the first with American Airlines. The latest departure is at 16:28 with American Airlines. Overall, you can choose from 15 weekly Sonoma County Airport to Phoenix Sky Harbour International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Make sure you're at the airport on time to catch your STS to PHX flight.

  • Flying during a peak month like October? School holidays and other popular seasons can mean longer queues and delays at airport checkpoints. Play things extra safe and get there up to four hours before an international flight and two hours before domestic departures.

  • American Airlines has direct flights from Sonoma County Airport to Phoenix Sky Harbour International Airport. Book with this popular carrier, then get ready to see the sights in Phoenix — and maybe even more of United States if your schedule allows.

  • The airline that tops the list for bookings on this route is American Airlines.

  • American Airlines tops the rankings as the most punctual carrier for STS to PHX flights, with 83.17% of its services arriving as scheduled.

  • Break up your flight or explore another city along the way with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Sonoma County Airport to Phoenix Sky Harbour International Airport. Many travellers pass through Dallas/Fort Worth International Airport when flying between STS and PHX.

How to find the cheapest flights from Sonoma County Airport (STS) to Phoenix Sky Harbour International Airport (PHX)

  • The lowest price we've seen for a one-way Sonoma County Airport to Phoenix Sky Harbour International Airport flight is $156. A round-trip plane ticket is currently $424. Depending on the availability when you book, these fares may change.

  • To score cheap tickets from STS to PHX, book your trip eight months before your departure date.

  • July is the cheapest month for flights from Sonoma County Airport to Phoenix Sky Harbour International Airport. If you'd like to fly during a different time of year, the 'Whole month' tool will show you the lowest prices across every month.

  • You won't have to check every day to find out if fares have dropped when you set up a Price Alert. We'll notify you the moment a special offer becomes available on cheap flights from STS to PHX.

  • Tailor your flights using filters. Choose your preferred arrival and departure times, total journey duration and airlines. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Sonoma County Airport to Phoenix Sky Harbour International Airport.

Handy information about Sonoma County Airport (STS)

  • You'll find STS at 2200 Airport Boulevard.

  • When it comes to Sonoma County Airport's on-time performance, 73.45% of flights arrive within the scheduled timeframe.

  • Central Santa Rosa to Sonoma County Airport is around 13 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're driving, ride-sharing or catching a cab.

  • The trip when using public transport takes roughly 35 minutes.

  • Booked an early flight from Sonoma County Airport to Phoenix Sky Harbour International Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by picking one of these hotels near STS:

Arriving at Phoenix Sky Harbour International Airport (PHX)

Getting from Phoenix Sky Harbour International Airport (PHX) to central Phoenix

  • PHX is located at 3400 Sky Harbour Boulevard.

  • Phoenix Sky Harbour International Airport is approximately 8 kilometres from the centre of Phoenix. The drive time takes around 10 minutes.

  • Getting to the centre by public transport takes around 35 minutes.

When to fly to Phoenix Sky Harbour International Airport (PHX)

  • The quietest month for a flight from Sonoma County Airport to Phoenix Sky Harbour International Airport is May, while July is the busiest. Choose the ideal time to go to Phoenix based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from Sonoma County Airport to Phoenix Sky Harbour International Airport, think about the type of weather you like. July is the warmest month in Phoenix, with the temperature ranging from 26ºC (79ºF) to 44ºC (111ºF).

  • If you want to travel in cooler conditions, search for a cheap ticket from STS to PHX in January. Temperatures average between 4ºC (39ºF) and 20ºC (68ºF) then.

Explore more of United States

  • You've seen Phoenix, now it's time to discover more of United States. Journey about 483 kilometres west to San Diego to check off its leading sights. From San Diego Zoo to USS Midway Museum and SeaWorld San Diego, you'll have a full itinerary ahead.

  • Las Vegas is another favourite destination in United States and is around 418 kilometres north-west of Phoenix. No trip is complete without visiting Las Vegas Strip, Fountains of Bellagio and Fremont Street Experience.

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