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$168+ Cheap flights from Santa Rosa to Philadelphia (STS - PHL)

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
STS — PHL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Santa Rosa to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Philadelphia (PHL). 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 September 17, 2025.

Round-trip from

$402
(Alaska Airlines)

One-way from

$168
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$403
From Santa Rosa Sonoma County to Philadelphia
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One-way flight from Santa Rosa Sonoma County to Philadelphia
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Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Santa Rosa to Philadelphia

Cheapest flights from Santa Rosa to Philadelphia
Explore the most affordable flight options available from Santa Rosa to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 11/57:00 amSTS - PHL
1 stop19h 42mAlaska Airlines
Sun 11/97:02 amPHL - STS
1 stop18h 03mAlaska Airlines
Deal found 9/16$402
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 12/112:21 pmSTS - PHL
1 stop12h 25mAlaska Airlines
Mon 12/157:06 amPHL - STS
1 stop9h 23mAlaska Airlines
Deal found 9/15$442
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 11/78:03 pmSTS - PHL
2 stops19h 09mAlaska Airlines
Wed 11/127:02 amPHL - STS
1 stop18h 03mAlaska Airlines
Deal found 9/16$461
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 12/246:00 amSTS - PHL
1 stop20h 37mAlaska Airlines
Wed 12/317:00 amPHL - STS
1 stop9h 32mAlaska Airlines
Deal found 9/15$502
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/102:30 pmSTS - PHL
1 stop12h 10mAlaska Airlines
Sun 10/127:00 amPHL - STS
1 stop9h 36mAlaska Airlines
Deal found 9/15$507
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 12/242:24 pmSTS - PHL
1 stop24h 20mAlaska Airlines
Thu 1/17:00 amPHL - STS
1 stop9h 32mAlaska Airlines
Deal found 9/15$522

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Philadelphia 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 September 17, 2025.
Use the filters below to find and compare flights from Santa Rosa to Philadelphia that are best for you.

Fly from

Santa Rosa

Fly to

Philadelphia

Route

Depart

Return

Price

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Wed 11/5

7:00 am-5:42 am

1 stop19h 42m

Philadelphia

Sun 11/9

7:02 am-10:05 pm

1 stop18h 03m

$402

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 11/7

2:22 pm-5:42 am

1 stop12h 20m

Philadelphia

Wed 11/12

7:02 am-10:05 pm

1 stop18h 03m

$402

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Thu 12/11

7:00 am-5:46 am

2 stops19h 46m

Philadelphia

Mon 12/15

7:06 am-1:29 pm

1 stop9h 23m

$468

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Wed 12/24

6:00 am-5:37 am

1 stop20h 37m

Philadelphia

Wed 12/31

7:00 am-1:32 pm

1 stop9h 32m

$502

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 10/10

2:30 pm-5:40 am

1 stop12h 10m

Philadelphia

Sun 10/12

7:00 am-1:36 pm

1 stop9h 36m

$507

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Wed 12/24

2:24 pm-5:44 pm

1 stop24h 20m

Philadelphia

Thu 1/1

7:00 am-1:32 pm

1 stop9h 32m

$522

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Mon 10/20

12:41 pm-5:40 am

2 stops13h 59m

$244

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Sun 12/21

4:21 pm-5:21 am

1 stop10h 00m

$380

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Sat 12/20

4:21 pm-5:26 am

1 stop10h 05m

$410

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Tue 9/30

12:25 pm-11:29 pm

1 stop8h 04m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 14 results
1
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Best time to book a flight from Santa Rosa to Philadelphia

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Santa Rosa to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Philadelphia (average of $236). Flying from Santa Rosa to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated September 17, 2025.
Get a feel of what it's like to fly with American Airlines from Santa Rosa to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Philadelphia. 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 Santa Rosa to Philadelphia?

    A quick flight from Santa Rosa to Philadelphia can take about 19h 42m. Alaska Airlines provides one of the quickest options available for as low as $402. Santa Rosa and Philadelphia are separated by a distance of 2517 mi.

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

    Cheapflights users have booked flights from Santa Rosa to Philadelphia round-trip from $484.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Santa Rosa to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Philadelphia (average of $236). Flying from Santa Rosa to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for Santa Rosa to Philadelphia

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

Discover the top airline that operate flights from Santa Rosa to Philadelphia. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$484Average$678FlexibilityNo cancel feeOn-time71%

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