PHL - STS

$265 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 8/2. 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

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

Fri, Jun 13 - Tue, Jun 17
American Airlines Logo
6:45 am - 11:50 amPHL-STS
8h 05m1 stop
American Airlines Logo
12:30 pm - 12:59 amSTS-PHL
9h 29m1 stop
$604American Airlines
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Fri, Jun 13 - Tue, Jun 17
American Airlines Logo
6:00 am - 12:40 pmPHL-STS
9h 40m2 stops
American Airlines Logo
12:30 pm - 12:59 amSTS-PHL
9h 29m1 stop
$609American Airlines
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Fri, Jun 27 - Mon, Jun 30
American Airlines Logo
10:44 am - 3:37 pmPHL-STS
7h 53m1 stop
American Airlines Logo
4:17 pm - 5:50 amSTS-PHL
10h 33m1 stop
$679American Airlines
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Fri, Jun 27 - Mon, Jun 30
American Airlines Logo
8:20 am - 3:37 pmPHL-STS
10h 17m2 stops
American Airlines Logo
4:17 pm - 5:50 amSTS-PHL
10h 33m1 stop
$684American Airlines
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Fri, Jun 13 - Tue, Jun 17
Alaska Airlines Logo
8:40 am - 7:43 pmPHL-STS
14h 03m2 stops
Alaska Airlines Logo
8:01 pm - 10:03 amSTS-PHL
11h 02m2 stops
$794Alaska Airlines
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Fri, Jun 27 - Mon, Jun 30
Alaska Airlines Logo
7:30 am - 7:07 pmPHL-STS
14h 37m2 stops
Alaska Airlines Logo
8:01 pm - 10:03 amSTS-PHL
11h 02m2 stops
$869Alaska Airlines
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Thu, Jul 31 - Sun, Aug 3
Alaska Airlines Logo
5:53 am - 6:07 pmPHL-STS
15h 14m2 stops
Alaska Airlines Logo
8:01 pm - 10:02 amSTS-PHL
11h 01m2 stops
$889Alaska Airlines
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Useful Info

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.

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Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$265
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 6% 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 $265 for a one-way ticket and $604 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.

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
7.5Boarding
7.2Comfort
8.0Crew
6.9Entertainment
6.5Food
Airline reviews

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

10.0 ExcellentJill, Apr 2025PHL - FLL
Read more American Airlines reviews

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

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

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.

The flight left a bit late, but arrived close to time expected…With the flight being close to full the crew did well serving drinks to all in a very timely fashion. The flight was a pleasure…

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

My flight back my reservations were list because they said I didn't pay my pet fee when I had a receipt

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

Information on your arrival and departure airports

Philadelphia (PHL)
Santa Rosa (STS)

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