PHX - STS

$89 Find Cheap Flights from Phoenix to Santa Rosa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Santa Rosa departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Santa Rosa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Santa Rosa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Santa Rosa, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$220
Typical prices: $374-$441
Alaska Airlines
Wed 4/29Mon 5/4
PHX - STS • 1 stop
Cheapest non-stop
$341
Typical prices: $375-$439
American Airlines
Fri 3/13Tue 3/17
PHX - STS • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
American Airlines' Main Cabin Extra includes early boarding.
Alaska's Wine Flies Free lets members check wine cases.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Cheapest • from $220 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 8% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Santa Rosa!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Phoenix to Santa Rosa (PHX-STS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Santa Rosa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Santa Rosa

Wed, Apr 29 - Mon, May 4
Alaska Airlines Logo
6:37 am - 10:58 am
PHX
-
STS
4h 21m
1 stop
Alaska Airlines Logo
8:00 pm - 10:43 pm
STS
-
PHX
26h 43m
1 stop
$220Alaska Airlines
Wed, Apr 15 - Sat, Apr 18
Alaska Airlines Logo
6:28 pm - 11:13 pm
PHX
-
STS
4h 45m
1 stop
Alaska Airlines Logo
9:50 am - 5:46 pm
STS
-
PHX
7h 56m
1 stop
$245Alaska Airlines
Wed, May 13 - Sat, May 16
Alaska Airlines Logo
3:40 pm - 11:26 pm
PHX
-
STS
7h 46m
1 stop
Alaska Airlines Logo
7:38 pm - 11:43 pm
STS
-
PHX
4h 05m
1 stop
$257Alaska Airlines
Fri, Apr 17 - Mon, Apr 20
Alaska Airlines Logo
6:28 pm - 7:20 pm
PHX
-
STS
24h 52m
1 stop
Alaska Airlines Logo
7:46 pm - 5:46 pm
STS
-
PHX
22h 00m
1 stop
$264Alaska Airlines
Thu, Apr 16 - Wed, Apr 22
Alaska Airlines Logo
7:00 am - 11:13 pm
PHX
-
STS
16h 13m
1 stop
Alaska Airlines Logo
10:01 am - 10:43 pm
STS
-
PHX
12h 42m
1 stop
$266Alaska Airlines
Thu, Apr 16 - Mon, Apr 20
Alaska Airlines Logo
7:00 am - 11:13 pm
PHX
-
STS
16h 13m
1 stop
Alaska Airlines Logo
7:46 pm - 10:33 am
STS
-
PHX
14h 47m
1 stop
$273Alaska Airlines
Thu, Apr 23 - Sun, Apr 26
Alaska Airlines Logo
6:37 am - 11:27 pm
PHX
-
STS
16h 50m
1 stop
Alaska Airlines Logo
7:23 am - 10:31 pm
STS
-
PHX
15h 08m
1 stop
$283Alaska Airlines
Wed, Apr 29 - Mon, May 4
Alaska Airlines Logo
6:37 am - 10:58 am
PHX
-
STS
4h 21m
1 stop
Alaska Airlines Logo
7:45 am - 11:59 pm
STS
-
PHX
16h 14m
2 stops
$290Alaska Airlines
Wed, May 13 - Sat, May 16
Alaska Airlines Logo
9:00 am - 9:22 pm
PHX
-
STS
12h 22m
2 stops
Alaska Airlines Logo
7:38 pm - 11:43 pm
STS
-
PHX
4h 05m
1 stop
$310Alaska Airlines
Fri, Apr 17 - Mon, Apr 20
Alaska Airlines Logo
6:28 pm - 7:05 pm
PHX
-
STS
24h 37m
1 stop
Alaska Airlines Logo
9:43 am - 10:33 am
STS
-
PHX
24h 50m
2 stops
$317Alaska Airlines
Booking Insights

KAYAK's insights & trends for Phoenix to Santa Rosa flights

Get data-powered insights and trends into flights from Phoenix to Santa Rosa to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Phoenix Sky Harbor Intl Airport to Santa Rosa?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Phoenix Sky Harbor Intl Airport to Santa Rosa departing in April.

What’s the cheapest day of the week to fly from Phoenix to Santa Rosa?

The average price of all round-trip flights from Phoenix Sky Harbor Intl Airport to Santa Rosa clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Santa Rosa on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Phoenix to Santa Rosa. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Santa Rosa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Santa Rosa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix Sky Harbor Intl Airport to Santa Rosa is April, where tickets cost $385 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $546 and $463 respectively.

Can I save money by flying with a layover from Phoenix Sky Harbor Intl Airport to Santa Rosa?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $395 on average.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to Santa Rosa?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Santa Rosa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to Santa Rosa, you should book around 5 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Phoenix to Santa Rosa

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$89
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Phoenix to Santa Rosa

When to book flights from Phoenix to Santa Rosa

Are your dates flexible? Find out the best times to travel from Phoenix to Santa Rosa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix to Santa Rosa flights

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Santa Rosa?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Santa Rosa was $89 for a one-way ticket and $220 for a round-trip.

  • Do I need a passport to fly between Phoenix and Santa Rosa?

    No, a passport isn't needed to fly from Phoenix to Santa Rosa. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Phoenix to Santa Rosa?

    On your way to Santa Rosa, you’ll fly out from Phoenix Sky Harbor Intl. You’ll be landing at Santa Rosa Sonoma County.

  • Which airlines offer Wi-Fi service onboard planes from Phoenix to Santa Rosa?

    American Airlines, Alaska Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the Phoenix to Santa Rosa flight route.

  • Which aircraft models fly most regularly from Phoenix to Santa Rosa?

    The Embraer 175 is the aircraft model that flies most regularly on the Phoenix to Santa Rosa flight route.

  • Which airline alliances offer flights from Phoenix to Santa Rosa?

    oneworld is the only airline alliance operating flights between Phoenix and Santa Rosa.

  • On which days can I fly direct from Phoenix to Santa Rosa?

    There are nonstop flights from Phoenix to Santa Rosa on a daily basis.

  • Which is the best airline for flights from Phoenix to Santa Rosa, Alaska Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to Santa Rosa are Alaska Airlines and American Airlines. With an average price for the route of $415 and an overall rating of 8.0, Alaska Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $395 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Phoenix to Santa Rosa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix to Santa Rosa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix to Santa Rosa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from Phoenix is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix to Santa Rosa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santa Rosa with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and STS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix to Santa Rosa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santa Rosa from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Phoenix Sky Harbor Intl Airport to Santa Rosa

  • Looking for a cheap flight? 25% of our users found flights on this route for $133 or less one-way and $371 or less round-trip.

Prefer to fly direct from Phoenix to Santa Rosa?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Phoenix Sky Harbor Intl to Santa Rosa Sonoma County.
Find which airlines fly direct from Phoenix Sky Harbor Intl Airport to Santa Rosa Sonoma County Airport, which days they fly and book direct flights.

Direct departures

Phoenix Sky Harbor Intl to Santa Rosa Sonoma County

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Santa Rosa Sonoma County to Phoenix Sky Harbor Intl

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top 3 airlines serving from Phoenix to Santa Rosa

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Santa Rosa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to Santa Rosa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11819 reviews
7.1Food
7.0Entertainment
8.1Boarding
7.8Comfort
8.5Crew
Airline reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

2.0 MediocreAnonymous, Jan 2026
STS - SAN
Read more Alaska Airlines reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

We left about 30 minutes late due to ramp issues. It did not impact me, but I know others on the flight had very tight connections to Maui.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

My seat and tray were filthy. Someone’s used straw was in the seat pocket and there were coffee stains and food crumbs on the tray table

The crew was very friendly. Boarding was quick and efficient.

Again, very smooth and all of the Alaska folks were great. They continue to meet all my needs.

Overall it was fine, however one of my two checked bags did not arrive and I was told it was left in Palm Springs. I don't understand how one of the two bags made it through fine but the other got lost .

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

Amazing I love American. I’ll never fly anyone else if I can help it.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

Better service. No food options, but we did get drinks and a cookie.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Liked that it was on time. Staff professional and friendly.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

Loved the crew . Absolutely no complaints. Except for luggage lost

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Very bad! No good service delayed my second connection flight

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

Information on your arrival and departure airports