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Santa Rosa

$122+ Cheap flights from Phoenix to Santa Rosa (STS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STS
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Santa Rosa Sonoma County are usually found in January or April, booked 83 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Phoenix to Santa Rosa

Cheapest flights from Phoenix to Santa Rosa
Explore the most affordable flight options available from Phoenix to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:20 amPHX - STS
1 stop7h 24mAlaska Airlines
Wed 12/316:45 amSTS - PHX
1 stop4h 15mAlaska Airlines
Deal found 12/20$453
This Alaska Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:36 pmPHX - STS
1 stop4h 23mAlaska Airlines
Sat 1/312:59 pmSTS - PHX
Nonstop2h 03mAlaska Airlines
Deal found 12/19$509
This Alaska Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:36 pmPHX - STS
1 stop4h 23mAlaska Airlines
Fri 1/26:45 amSTS - PHX
1 stop12h 09mAlaska Airlines
Deal found 12/19$533
This Alaska Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:36 pmPHX - STS
1 stop4h 23mAlaska Airlines
Sun 1/412:59 pmSTS - PHX
Nonstop2h 03mAlaska Airlines
Deal found 12/20$548
This Alaska Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:04 amPHX - STS
Nonstop2h 25mAlaska Airlines
Sat 1/34:21 pmSTS - PHX
Nonstop2h 04mAlaska Airlines
Deal found 12/20$555
This Alaska Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:20 amPHX - STS
1 stop7h 24mAlaska Airlines
Fri 1/26:45 amSTS - PHX
1 stop4h 05mAlaska Airlines
Deal found 12/20$573
This Alaska Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:20 amPHX - STS
1 stop7h 24mAlaska Airlines
Thu 1/17:00 amSTS - PHX
2 stops7h 51mAlaska Airlines
Deal found 12/20$589

Find flight deals from Phoenix to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Santa Rosa (STS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 21, 2025.

Round-trip from

$242
(Alaska Airlines)

One-way from

$122
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$539
From Phoenix to Santa Rosa Sonoma County
Search Deals
One-way flight from Phoenix to Santa Rosa Sonoma County
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix to Santa Rosa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from Phoenix to Santa Rosa that are best for you.

Fly from

Phoenix

Fly to

Santa Rosa

Route

Depart

Return

Price

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Tue 2/24

6:00 am-9:52 pm

1 stop16h 52m

Santa Rosa Sonoma County

Wed 2/25

10:51 am-11:42 pm

1 stop11h 51m

$242

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Thu 1/15

1:16 pm-11:59 pm

1 stop11h 43m

Santa Rosa Sonoma County

Wed 1/21

7:00 am-10:46 pm

2 stops14h 46m

$243

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Thu 1/15

1:16 pm-11:59 pm

1 stop11h 43m

Santa Rosa Sonoma County

Sun 1/18

7:00 am-11:59 pm

2 stops15h 59m

$243

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Tue 1/27

8:00 am-10:35 am

1 stop27h 35m

Santa Rosa Sonoma County

Fri 1/30

9:33 pm-4:12 pm

1 stop17h 39m

$257

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Sat 1/17

3:17 pm-10:35 am

1 stop20h 18m

Santa Rosa Sonoma County

Wed 1/21

7:00 am-10:46 pm

2 stops14h 46m

$258

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Thu 1/22

8:24 am-11:11 pm

1 stop15h 47m

Santa Rosa Sonoma County

Sat 1/24

11:15 am-5:53 pm

1 stop5h 38m

$262

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Thu 1/22

11:00 am-11:11 pm

2 stops13h 11m

Santa Rosa Sonoma County

Sun 1/25

7:00 am-7:48 pm

2 stops11h 48m

$263

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Thu 1/22

11:00 am-11:11 pm

2 stops13h 11m

$122

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Fri 2/20

6:00 am-11:50 pm

1 stop18h 50m

$127

PhoenixSanta Rosa

PHX - STS

PHXSTS

Phoenix Sky Harbor Intl

Sun 1/18

7:00 am-11:59 pm

1 stop17h 59m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 14 results
1
2

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Santa Rosa. Price data was last updated on December 12, 2025.

The best time to book flights from Phoenix to Santa Rosa is 83 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, January is the cheapest month in which you can book a flight from Phoenix to Santa Rosa (average of $39). Flying from Phoenix to Santa Rosa in July is currently the most expensive (average of $90). 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?

Find hourly flight availability from Phoenix to Santa Rosa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

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 26% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated December 21, 2025.
Read through reviews of airlines operating flights from Phoenix to Santa Rosa, such as Alaska Airlines, American Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,496 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,496 reviews
Alaska Airlines
8.0
Very good
11,496 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,051 reviews
Alaska Airlines
8.0
Very good
11,496 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,079 reviews
Alaska Airlines
8.0
Very good
11,496 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 3 inbound flights from Phoenix per day.

  • How long is the flight from Phoenix to Santa Rosa?

    For as low as $242, Alaska Airlines can have you in Santa Rosa from Phoenix in 16h 52m. Phoenix and Santa Rosa are separated by a distance of 698 mi.

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

    Frontier, at $30, was found to be the cheapest airline from Phoenix to Santa Rosa.Alternate airlines to your destination round-trip include Alaska Airlines and American Airlines. Users have found that Frontier is 92% cheaper than the other options available to this destination.

  • 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 Porter Airlines (96%), American Airlines (83%) and Alaska Airlines (83%).

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

    While on average a flight from Phoenix to Santa Rosa is generally $405, our data shows the cheapest flight currently is $266. When looking at the most popular route, (Phoenix Sky Harbor Intl - Santa Rosa Sonoma County), you can expect to pay $242 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, January is the cheapest month in which you can book a flight from Phoenix to Santa Rosa (average of $39). Flying from Phoenix to Santa Rosa in July is currently the most expensive (average of $90). 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?

Book flights to Santa Rosa if you plan to visit one of these locations
Fort Bragg
Ukiah

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Alternative routes for Phoenix to Santa Rosa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Phoenix to Santa Rosa

Discover the top 3 airlines that operate flights from Phoenix to Santa Rosa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$92FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$237Average$415FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$305Average$397FlexibilityNo cancel feeOn-time71%

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