PHL - STS

$209 Find Cheap Flights from Philadelphia 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 Philadelphia to Santa Rosa departing on 9/9. 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

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 Philadelphia 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 Philadelphia to Santa Rosa, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Philadelphia to Santa Rosa (PHL-STS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia 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 Philadelphia to Santa Rosa

Tue, Sep 16 - Tue, Sep 23
Alaska Airlines Logo
6:57 pm - 4:14 pmPHL-STS
24h 17m2 stops
Alaska Airlines Logo
3:07 pm - 6:02 amSTS-PHL
11h 55m2 stops
$430Alaska Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 27
Alaska Airlines Logo
6:57 pm - 4:14 pmPHL-STS
24h 17m2 stops
Alaska Airlines Logo
11:54 am - 6:02 amSTS-PHL
15h 08m2 stops
$440Alaska Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 27
Alaska Airlines Logo
6:57 pm - 4:14 pmPHL-STS
24h 17m2 stops
Alaska Airlines Logo
2:28 pm - 6:02 amSTS-PHL
12h 34m1 stop
$445Alaska Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 23
Alaska Airlines Logo
7:22 am - 1:36 pmPHL-STS
9h 14m1 stop
Alaska Airlines Logo
3:07 pm - 6:02 amSTS-PHL
11h 55m2 stops
$448Alaska Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 23
Alaska Airlines Logo
7:22 am - 7:12 pmPHL-STS
14h 50m2 stops
Alaska Airlines Logo
11:54 am - 6:02 amSTS-PHL
15h 08m2 stops
$453Alaska Airlines
Find Deal
Tue, Sep 16 - Sun, Sep 28
Alaska Airlines Logo
6:57 pm - 4:14 pmPHL-STS
24h 17m2 stops
Alaska Airlines Logo
7:00 am - 6:02 amSTS-PHL
20h 02m1 stop
$455Alaska Airlines
Find Deal
Wed, Sep 17 - Sat, Sep 27
Alaska Airlines Logo
7:22 am - 1:36 pmPHL-STS
9h 14m1 stop
Alaska Airlines Logo
3:07 pm - 6:02 amSTS-PHL
11h 55m2 stops
$458Alaska Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Alaska Airlines Logo
7:22 am - 1:36 pmPHL-STS
9h 14m1 stop
Alaska Airlines Logo
2:28 pm - 6:02 amSTS-PHL
12h 34m1 stop
$462Alaska Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
American Airlines Logo
5:00 am - 11:37 amPHL-STS
9h 37m1 stop
American Airlines Logo
4:17 pm - 7:28 amSTS-PHL
12h 11m1 stop
$596American Airlines
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Wed, Aug 13 - Sun, Aug 17
American Airlines Logo
6:00 am - 12:29 pmPHL-STS
9h 29m2 stops
American Airlines Logo
12:59 pm - 5:25 amSTS-PHL
13h 26m1 stop
$601American Airlines
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KAYAK's insights & trends for Philadelphia to Santa Rosa flights

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

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

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

Your flight ticket price will generally be cheaper if you fly to Santa Rosa on a Saturday and more expensive on a Wednesday. On your return trip to Philadelphia, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$209
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Philadelphia to Santa Rosa

When to book flights from Philadelphia to Santa Rosa

Are your dates flexible? Find out the best times to travel from Philadelphia 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 flights from Philadelphia to Santa Rosa

  • What is the cheapest flight from Philadelphia to Santa Rosa?

    In the last 3 days, the lowest price for a flight from Philadelphia to Santa Rosa was $209 for a one-way ticket and $430 for a round-trip.

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

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

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

    Philadelphia and Santa Rosa are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at Santa Rosa Sonoma County.

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

    We unfortunately don’t have that data for this specific route.

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

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

  • How does KAYAK find such low prices on flights from Philadelphia 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 Philadelphia to Santa Rosa.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from Philadelphia 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 Philadelphia 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 Philadelphia with another airline. Booking your flights between Philadelphia 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 Philadelphia 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 Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Philadelphia to Santa Rosa

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia 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 Philadelphia 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.
7.2
American AirlinesOverall score based on 10000 reviews
6.9Entertainment
6.5Food
7.5Boarding
8.0Crew
7.2Comfort
Airline reviews

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

6.0 GoodAnonymous, Jun 2025PHL - SAV
Read more American Airlines reviews

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

It’s a great flight. Service is good. Staff is awesome.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

I had a very unpleasant encounter with one man from customer service: he was extremely rude and miserable. And his condition was reflected on his decision to send me to the worst airport hotel and get an awful flight connection. My hotel shuttle had never arrived and I had to book another hotel. People served by other representatives got a much better treatment and deal.

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

Information on your arrival and departure airports

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