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PHL - STS

Find cheap flights from Philadelphia to Santa Rosa from $543

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Santa Rosa departing on 8/21. 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
0 bags
Sat 6/8
Sat 6/15

Search 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
In the last 7 days travelers have searched 43,895,468 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
10:50 am - 3:45 pmPHL-STS
7h 55m1 stop
12:27 pm - 12:56 amSTS-PHL
9h 29m1 stop
$543American Airlines
Find Deal
Wed, Aug 21 - Sat, Aug 24
8:33 am - 3:45 pmPHL-STS
10h 12m2 stops
12:27 pm - 12:56 amSTS-PHL
9h 29m1 stop
$546American Airlines
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Wed, Aug 21 - Sat, Aug 24
6:47 am - 11:47 amPHL-STS
8h 00m1 stop
12:27 pm - 12:56 amSTS-PHL
9h 29m1 stop
$598American Airlines
Find Deal
Wed, Aug 21 - Sun, Aug 25
6:00 am - 3:45 pmPHL-STS
12h 45m2 stops
12:27 pm - 12:56 amSTS-PHL
9h 29m1 stop
$601American Airlines
Find Deal
Wed, Aug 21 - Sun, Aug 25
8:40 am - 3:43 pmPHL-STS
10h 03m1 stop
12:33 pm - 11:15 pmSTS-PHL
7h 42m1 stop
$603American Airlines
Find Deal
Sat, Jun 8 - Sat, Jun 15
6:50 am - 11:53 amPHL-STS
8h 03m1 stop
4:14 pm - 9:33 amSTS-PHL
14h 19m2 stops
$606American Airlines
Find Deal
Sat, Jun 8 - Sat, Jun 15
6:02 am - 3:43 pmPHL-STS
12h 41m2 stops
4:14 pm - 9:33 amSTS-PHL
14h 19m2 stops
$610American Airlines
Find Deal
Sat, Jun 8 - Sat, Jun 15
6:00 am - 3:45 pmPHL-STS
12h 45m2 stops
4:15 pm - 9:23 amSTS-PHL
14h 08m2 stops
$658American Airlines
Find Deal
Wed, Aug 21 - Sat, Aug 24
7:03 pm - 2:39 pmPHL-STS
22h 36m2 stops
7:03 pm - 9:50 amSTS-PHL
11h 47m2 stops
$1,820Alaska Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14
7:03 pm - 10:34 pmPHL-STS
30h 31m1 stop
7:03 pm - 9:50 amSTS-PHL
11h 47m2 stops
$1,845Alaska Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14

Flights from Philadelphia to Santa Rosa - Travel Insights & Trends

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 flights from Philadelphia to Santa Rosa clicked on KAYAK for each day over the last 12 months.
When flying from Philadelphia to Santa Rosa, you should consider leaving on a Saturday and avoid Wednesdays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

What is the cheapest month to fly from Philadelphia to Santa Rosa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Philadelphia 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 Philadelphia to Santa Rosa is January, where tickets cost $376 on average. On the other hand, the most expensive months are November and May, where the average cost of tickets is $890 and $837 respectively.

Good to know

Low season

January

High season

May

Cheapest flight

$543
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly with an average 24% increase in price.
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 $916 for a one-way ticket and $543 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.

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

    The two airlines most popular with KAYAK users for flights from Philadelphia to Santa Rosa are Alaska Airlines and American Airlines. With an average price for the route of $671 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 $643 and an overall rating of 7.3.

  • 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.

See more FAQs

Top airlines 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.
8.0
Alaska AirlinesOverall score based on 9142 reviews
7.9Comfort
8.6Crew
7.3Food
7.3Entertainment
8.2Boarding
Airline reviews

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

2.0 MediocreAnonymous, May 2024SEA - LAX
Read more about Alaska Airlines reviews

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

No tv, movies for a 6 hour flight! Worst airline I have ever travelled!

It was great; it was on time, everything went smoothly, the crew was excellent. It was just uncomfortable for the usual reasons; completely full fight, could barely move because the space was so small. The expected stuff with every airline.

Ground crew was great in Austin, flight crew left a lot to be desired. Not particularly friendly, helpful or nice.

My baggage was in another flight, anit was delayed for one hour.

They canceled the flight 30 minutes prior to departure without any heads up.

Like South West(2 check in baggage free) if Alaskan Airlines could give at least one check in baggage free then it would be great.

Up on arrival, due to twisted ankle, I wasn’t able to walk. Requested for a wheelchair. They immediately asked for it. After 10 minutes wait a young man named Carlos picked me up at the gate, got my baggage and took me to the pick up area. It was a great service. Thanks Alaska Air line

Staff great. Tight seating. Pretzels and drink same as any other airline.

We had a very scary attempted landing in Palm Springs and were redirected to Ontario. It was a stressful flight.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Flight from PHL to PHX arrived 50 minutes early and a gate was available. First class flight attendant Stephanie was very friendly and polite. Sanitizing wipes should be provided with meals in addition to refresher towels.

flight delayed so missed connection and this had to rebook for next day

Flight departed PHL one hour late due to late arrival of aircraft. On board services were okay. First class menu does not offer any new items; same desserts (cheese & crackers or Mango sorbet). At least there were no credit card promotions during the flight.

After sitting on plane for 7+ hours, flight was canceled. And to makes matters worse, my suitcase is in baggage hell!

Terrible Ticketing and Check in process. I learned that AA unilaterally cancelled my premium seating from PHL to CLT and from CLT to JAN. They did, however, refund my money, but my seating was subsequently severely downgraded. They didn’t have a seat for my unless I paid for it! Not cool! Consequently, Check-in took 45 min. AA is usually great, but this was my worst experience with AA ever. Appalling they they arbitrarily cancel my seats threatening loss of flight if I didn’t pay for a seat!!!! -John

We liked quick boarding and on time departure. Seats were very uncomfortable.

Book cheap flights from Philadelphia to Santa Rosa

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Santa Rosa found on KAYAK in the last 72 hours.
9/21Sat
1 stopAlaska Airlines
9h 31mPHL-STS
$916
9/21Sat
2 stopsAlaska Airlines
14h 37mPHL-STS
$1,099

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Philadelphia - Santa Rosa Flights

Departure:

Philadelphia (undefined)United States

Destination:

Santa Rosa (STS)United States

Return flight deals:

Santa Rosa - Philadelphia

Cabin classes: