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Santa Rosa

Cheap flights from Phoenix to Santa Rosa (STS)

PHX — STS
Nov 18 — Nov 251
Wed 11/18
Wed 11/25
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Santa Rosa Sonoma County are usually found in August or September, booked 15 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Find flight deals from Phoenix to Santa Rosa

Popular in

December

Cheapest in

August

Average price

$381
Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Best time to book a flight from Phoenix to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Phoenix with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Santa Rosa

How far ahead should I book a flight from Phoenix to Santa Rosa?

The best time to book flights from Phoenix to Santa Rosa is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Phoenix to Santa Rosa?

Currently, August is the cheapest month in which you can book a flight from Phoenix to Santa Rosa (average of $357). Flying from Phoenix to Santa Rosa in December is currently the most expensive (average of $572). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to STS?

A simple way to save on the total cost of your ticket is to fly from Phoenix to Santa Rosa in the afternoon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Santa Rosa

Read through reviews of airlines operating flights from Phoenix to Santa Rosa, such as Alaska Airlines,Southwest, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
13,088 reviews

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
13,088 reviews
Alaska Airlines
7.9
Good
13,088 reviews

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Southwest
7.9
Good
4,212 reviews
Alaska Airlines
7.9
Good
13,088 reviews

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
American Airlines
7.0
Good
12,178 reviews
Alaska Airlines
7.9
Good
13,088 reviews

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • What airport do you fly into for flights to Santa Rosa from Phoenix?

    Santa Rosa Sonoma County (STS), located 7.2 mi from the city center, is the airport you fly into when you book flights from Phoenix to Santa Rosa. 3 airlines have flights to Sonoma County from Phoenix on a regular basis. Booking flights from Phoenix to Santa Rosa Sonoma County should not be difficult; the airport handles an average of 4 inbound flights from Phoenix per day.

  • What are the cheapest airlines flying from Phoenix to Santa Rosa round-trip?

    Alaska Airlines, at $202, was found to be the cheapest airline from Phoenix to Santa Rosa.Alternate airlines to your destination round-trip include Southwest and American Airlines. Users have found that Alaska Airlines is 50% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Phoenix to Santa Rosa one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $111. American Airlines flights start at $117 while deals on Southwest start at $162 one-way.

  • What are the most reliable airlines from Phoenix to Santa Rosa?

    The top 3 most reliable airlines when flying from Phoenix to Santa Rosa are Alaska Airlines (78%), SkyWest Airlines (77%) and Porter Airlines (77%).

  • What are the cheapest flights from Phoenix to Santa Rosa?

    While on average a flight from Phoenix to Santa Rosa is generally $338, our data shows the cheapest flight currently is $143. When looking at the most popular route, (Phoenix Sky Harbor Intl - Santa Rosa Sonoma County), you can expect to pay $204 for that flight.

  • Can I find deals for flights from Phoenix to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on Phoenix to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Santa Rosa.

  • Can I find deals for business class flights from Phoenix to Santa Rosa?

    Yes. Cheapflights offers flight deals from Phoenix to Santa Rosa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix to Santa Rosa?

    Currently, August is the cheapest month in which you can book a flight from Phoenix to Santa Rosa (average of $357). Flying from Phoenix to Santa Rosa in December is currently the most expensive (average of $572). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Santa Rosa?

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Top 3 airlines flying from Phoenix to Santa Rosa

AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$202Average$435FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$252Average$366FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$267Average$396FlexibilityNo cancel feeOn-time71%

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