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Santa Rosa

$202+ Cheap flights from Philadelphia to Santa Rosa (PHL - 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STS
Aug 16 — Aug 231
Sun 8/16
Sun 8/23
1 adult, Economy
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Cheap flight deals from Philadelphia to Santa Rosa

Cheapest flights from Philadelphia to Santa Rosa
Explore the most affordable flight options available from Philadelphia to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.

This Alaska Airlines deal was found by Cheapflights users on 7/15. 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.
Sat 10/34:06 pm
PHL
-
STS
1 stop19h 56m
Alaska Airlines
Wed 10/77:00 am
STS
-
PHL
1 stop19h 40m
Alaska Airlines
Deal found 7/15$403
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:40 am
PHL
-
STS
2 stops12h 28m
Delta
Sat 10/244:50 pm
STS
-
PHL
2 stops15h 10m
Delta
Deal found 7/13$413
This Southwest deal was found by Cheapflights users on 7/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:10 pm
PHL
-
STS
2 stops10h 40m
Southwest
Sat 8/2912:45 pm
STS
-
PHL
1 stop7h 05m
Southwest
Deal found 7/13$431
This Travelocity deal was found by Cheapflights users on 7/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am
PHL
-
STS
1 stop8h 46m
Alaska Airlines
Tue 10/62:40 pm
STS
-
PHL
2 stops21h 26m
Alaska Airlines
Deal found 7/13$444
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 10/147:00 am
PHL
-
STS
1 stop9h 06m
Alaska Airlines
Mon 10/265:04 pm
STS
-
PHL
1 stop9h 36m
Alaska Airlines
Deal found 7/13$457
This Alaska Airlines deal was found by Cheapflights users on 7/16. 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.
Wed 8/125:46 pm
PHL
-
STS
1 stop8h 44m
Alaska Airlines
Tue 8/255:34 pm
STS
-
PHL
1 stop9h 06m
Alaska Airlines
Deal found 7/16$459
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:33 am
PHL
-
STS
2 stops12h 22m
Alaska Airlines
Wed 8/198:07 am
STS
-
PHL
1 stop28h 38m
Alaska Airlines
Deal found 7/16$465
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:05 am
PHL
-
STS
2 stops11h 03m
Delta
Fri 10/234:50 pm
STS
-
PHL
2 stops14h 26m
Delta
Deal found 7/13$467
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Fri 10/166:39 pm
PHL
-
STS
1 stop21h 27m
Alaska Airlines
Wed 10/215:04 pm
STS
-
PHL
1 stop9h 36m
Alaska Airlines
Deal found 7/13$469

Find flight deals from Philadelphia to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 July 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$403
(Alaska Airlines)

One-way from

$202
(Southwest)

Popular in

December

Cheapest in

March

Average price

$607
Provider with most accurate pricing for Philadelphia-Santa Rosa Sonoma County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Santa Rosa Sonoma County flights.
Search Deals
From Philadelphia to Santa Rosa Sonoma County
Search Deals
One-way flight from Philadelphia to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 July 17, 2026.
Use the filters below to find and compare flights from Philadelphia to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 10/27

7:00 am-1:06 pm

1 stop9h 06m

Santa Rosa Sonoma County

Sat 10/31

5:04 pm-5:40 am

1 stop9h 36m

$403

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Sat 10/3

4:06 pm-9:02 am

1 stop19h 56m

Santa Rosa Sonoma County

Wed 10/7

7:00 am-5:40 am

1 stop19h 40m

$403

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Sat 10/24

7:00 am-1:06 pm

1 stop9h 06m

Santa Rosa Sonoma County

Tue 10/27

5:04 pm-5:40 am

1 stop9h 36m

$403

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Sat 8/22

12:10 pm-7:50 pm

2 stops10h 40m

Santa Rosa Sonoma County

Sat 8/29

6:00 am-8:45 pm

2 stops11h 45m

$436

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 10/22

12:35 pm-11:15 pm

2 stops13h 40m

Santa Rosa Sonoma County

Sat 11/7

6:30 am-8:15 pm

2 stops10h 45m

$467
Quickest round-trip

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 8/12

5:46 pm-11:30 pm

1 stop8h 44m

Santa Rosa Sonoma County

Sat 8/29

5:34 pm-5:40 am

1 stop9h 06m

$471
Cheapest one-way

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 9/9

7:00 am-12:46 pm

1 stop8h 46m

$202

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 10/21

7:00 am-1:06 pm

1 stop9h 06m

$202
Quickest one-way

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 7/22

5:46 pm-11:30 pm

1 stop8h 44m

$279

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 9/10

7:00 am-6:07 pm

2 stops14h 07m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

Sorted by cheapest first

Compare providers for flights from Philadelphia to Santa Rosa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Santa Rosa in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Santa Rosa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Santa Rosa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Santa Rosa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Philadelphia 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.

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 July 17, 2026.
Peruse reviews from past customers who have flown with American Airlines from Philadelphia to Santa Rosa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,827 reviews

Entertainment

6.8

Overall

7.1

Food

6.4

Crew

7.9

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

ameenah,Feb 2024

PHL - DFW

Allow you to take your carry on with you on the plane. It was a full flight and I had to check my bag. As we boarded, a few people who came after me were able to take their bags on the plane.
American Airlines
7.1
Good
11,827 reviews
American Airlines
7.1
Good
11,827 reviews

Entertainment

6.8

Overall

7.1

Food

6.4

Crew

7.9

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

ameenah,Feb 2024

PHL - DFW

Allow you to take your carry on with you on the plane. It was a full flight and I had to check my bag. As we boarded, a few people who came after me were able to take their bags on the plane.

Related info for your journey

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

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

    Airlines like Alaska Airlines and Southwest fly from Philadelphia to Santa Rosa in about 9h 06m. The time it takes to get you to your destination can typically vary by up to 1h 34m. The distance from Philadelphia to Santa Rosa is about 2517 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Philadelphia to Santa Rosa round-trip?

    American Airlines, at $489, was found to be the cheapest airline from Philadelphia to Santa Rosa.. American Airlines is priced at 27% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Philadelphia to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Santa Rosa.

  • Can I find deals for business class flights from Philadelphia to Santa Rosa?

    Yes. Cheapflights offers flight deals from Philadelphia 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.

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 Philadelphia to Santa Rosa

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

Discover the top airline that operate flights from Philadelphia 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 July 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$489Average$678FlexibilityNo cancel feeOn-time71%

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