HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$297+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
STS — PHL
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santa Rosa to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$343
(Alaska Airlines)

One-way from

$297
(Alaska Airlines)

Popular in

December

Cheapest in

March

Average price

$459
Provider with most accurate pricing for Santa Rosa Sonoma County-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Philadelphia flights.
Search Deals
From Santa Rosa Sonoma County to Philadelphia
Search Deals
One-way flight from Santa Rosa Sonoma County to Philadelphia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 6, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 1/309:33 pmSTS - PHL
1 stop17h 30mAlaska Airlines
Sun 2/87:06 pmPHL - STS
1 stop31h 53mAlaska Airlines
Deal found 1/6$343
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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.
Tue 1/2711:15 amSTS - PHL
1 stop27h 48mAlaska Airlines
Fri 1/307:06 pmPHL - STS
1 stop18h 29mAlaska Airlines
Deal found 1/6$358
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 1/3111:15 amSTS - PHL
1 stop27h 48mAlaska Airlines
Wed 2/47:06 pmPHL - STS
1 stop31h 53mAlaska Airlines
Deal found 1/6$363
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 2/711:15 amSTS - PHL
1 stop27h 48mAlaska Airlines
Wed 2/117:06 pmPHL - STS
1 stop31h 44mAlaska Airlines
Deal found 1/6$373
This American Airlines deal was found by Cheapflights users on 1/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1012:55 pmSTS - PHL
1 stop7h 56mAmerican Airlines
Sat 2/147:05 amPHL - STS
1 stop11h 42mAmerican Airlines
Deal found 1/5$375
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 2/711:15 amSTS - PHL
1 stop27h 48mAlaska Airlines
Mon 2/166:20 pmPHL - STS
1 stop30h 32mAlaska Airlines
Deal found 1/6$378
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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.
Mon 2/26:30 pmSTS - PHL
2 stops20h 33mAlaska Airlines
Mon 2/97:06 pmPHL - STS
1 stop18h 29mAlaska Airlines
Deal found 1/6$381
This Alaska Airlines deal was found by Cheapflights users on 1/5. 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.
Tue 2/311:15 amSTS - PHL
1 stop27h 48mAlaska Airlines
Fri 2/67:06 pmPHL - STS
1 stop18h 29mAlaska Airlines
Deal found 1/5$383
This Alaska Airlines deal was found by Cheapflights users on 1/4. 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 2/147:57 pmSTS - PHL
1 stop18h 23mAlaska Airlines
Wed 2/186:20 pmPHL - STS
1 stop19h 12mAlaska Airlines
Deal found 1/4$387
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 1/2811:15 amSTS - PHL
1 stop27h 48mAlaska Airlines
Sat 1/317:06 pmPHL - STS
1 stop18h 29mAlaska Airlines
Deal found 1/6$388
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 2/56:30 pmSTS - PHL
2 stops20h 33mAlaska Airlines
Mon 2/97:06 pmPHL - STS
1 stop18h 29mAlaska Airlines
Deal found 1/6$391
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 1/316:30 pmSTS - PHL
2 stops20h 33mAlaska Airlines
Sat 2/77:06 pmPHL - STS
1 stop31h 53mAlaska Airlines
Deal found 1/6$401

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 January 6, 2026.
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

Fri 1/30

9:33 pm-6:03 pm

1 stop17h 30m

Philadelphia

Wed 2/4

7:06 pm-11:59 pm

1 stop31h 53m

$343

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Thu 1/29

9:33 pm-6:03 pm

1 stop17h 30m

Philadelphia

Mon 2/2

7:06 pm-10:35 am

1 stop18h 29m

$343

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 2/6

9:33 pm-6:03 pm

1 stop17h 30m

Philadelphia

Mon 2/9

7:06 pm-10:35 am

1 stop18h 29m

$343

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Wed 2/25

7:57 pm-5:20 pm

1 stop18h 23m

Philadelphia

Fri 2/27

6:20 pm-9:52 pm

1 stop30h 32m

$343

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 1/30

9:33 pm-6:03 pm

1 stop17h 30m

Philadelphia

Tue 2/3

7:06 pm-10:35 am

1 stop18h 29m

$343

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 1/30

9:33 pm-6:03 pm

1 stop17h 30m

Philadelphia

Sun 2/8

7:06 pm-11:59 pm

1 stop31h 53m

$343

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Tue 1/27

11:15 am-6:03 pm

1 stop27h 48m

Philadelphia

Sat 1/31

7:06 pm-11:59 pm

1 stop31h 53m

$358

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Tue 2/10

11:15 am-6:03 pm

1 stop27h 48m

Philadelphia

Fri 2/13

6:20 pm-9:52 pm

1 stop30h 32m

$358

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Tue 2/3

11:15 am-6:03 pm

1 stop27h 48m

Philadelphia

Sat 2/7

7:06 pm-10:35 am

1 stop18h 29m

$358

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Sat 2/7

11:15 am-6:03 pm

1 stop27h 48m

Philadelphia

Tue 2/10

7:06 pm-10:35 am

1 stop18h 29m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 20 results
1
2

Compare providers for flights from Santa Rosa to Philadelphia

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 Santa Rosa to Philadelphia in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Santa Rosa-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Santa Rosa-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Santa Rosa-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams 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 Santa Rosa-Philadelphia 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 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, February is the cheapest month in which you can book a flight from Santa Rosa to Philadelphia (average of $96). Flying from Santa Rosa to Philadelphia in June is currently the most expensive (average of $176). 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 January 6, 2026.
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
11,083 reviews

Comfort

7.2

Crew

8.0

Food

6.4

Boarding

7.5

Overall

7.2

Entertainment

6.9

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
11,083 reviews
American Airlines
7.2
Good
11,083 reviews

Comfort

7.2

Crew

8.0

Food

6.4

Boarding

7.5

Overall

7.2

Entertainment

6.9

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 17h 30m. Alaska Airlines provides one of the quickest options available for as low as $343. 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 $523.

  • 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, February is the cheapest month in which you can book a flight from Santa Rosa to Philadelphia (average of $96). Flying from Santa Rosa to Philadelphia in June is currently the most expensive (average of $176). 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
Wildwood
Pottstown
Reading
Ocean City
King of Prussia
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Newark
Chester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Santa Rosa to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to LaGuardia flights
Los Angeles to Newark flights
San Francisco to Newark flights
San Francisco to LaGuardia flights
Los Angeles to Reagan-National flights
San Francisco to Philadelphia flights
Los Angeles to Dulles Intl flights
Burbank to LaGuardia flights
Ontario to John F Kennedy Intl flights
San Diego to John F Kennedy Intl flights
San Diego to Newark flights
San Francisco to Reagan-National flights
Santa Ana to LaGuardia flights
Ontario to Newark flights
Los Angeles to Philadelphia flights
San Francisco to Dulles Intl flights
Las Vegas to John F Kennedy Intl flights
Santa Ana to Newark flights
Ontario to LaGuardia flights
San Diego to LaGuardia flights
Santa Ana to John F Kennedy Intl flights
Las Vegas to Newark flights
Ontario to Dulles Intl flights
Burbank to John F Kennedy Intl flights
Ontario to Philadelphia flights
Sacramento to Newark flights
San Diego to Dulles Intl flights
Las Vegas to LaGuardia flights
San Jose to Newark flights
Ontario to Reagan-National flights
San Diego to Reagan-National flights
Sacramento to LaGuardia flights
Oakland to John F Kennedy Intl flights
Sacramento to John F Kennedy Intl flights
Oakland to Newark flights
San Jose to John F Kennedy Intl flights
Burbank to Newark flights
San Jose to LaGuardia flights
San Diego to Philadelphia flights
San Francisco to Pittsburgh flights
Las Vegas to Dulles Intl flights
Los Angeles to Pittsburgh flights
San Jose to Dulles Intl flights
Sacramento to Dulles Intl flights
San Jose to Philadelphia flights
Oakland to Philadelphia flights
Santa Ana to Philadelphia flights
Las Vegas to Philadelphia flights

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 January 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$523Average$603FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.