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$265+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STS
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Find cheap flights from Philadelphia to Santa Rosa with Cheapflights

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Cheap 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$529
(American Airlines)

One-way from

$265
(American Airlines)

Popular in

March

Cheapest in

November

Average price

$1,002
Provider with most accurate pricing for Philadelphia-Santa Rosa Sonoma County flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Santa Rosa Sonoma County flights.
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From Philadelphia to Santa Rosa Sonoma County
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One-way flight from Philadelphia to Santa Rosa Sonoma County
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Highest demand for flights based on searches. 19% potential increase in price ($159 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 26, 2025.

This American Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 5/149:30 amPHL - STS
1 stop9h 11mAmerican Airlines
Sat 5/1712:46 pmSTS - PHL
1 stop8h 08mAmerican Airlines
Deal found 3/25$529
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 4/157:20 amPHL - STS
2 stops14h 32mAlaska Airlines
Tue 4/2212:45 pmSTS - PHL
2 stops13h 59mAlaska Airlines
Deal found 3/25$579

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 March 26, 2025.
Use the filters below to find and compare flights from Philadelphia to Santa Rosa that are best for you.

Fly from

Philadelphia

Fly to

Santa Rosa

Route

Depart

Return

Price

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 5/14

9:30 am-3:41 pm

1 stop9h 11m

Santa Rosa Sonoma County

Sat 5/17

12:46 pm-11:54 pm

1 stop8h 08m

$529

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 4/15

7:20 am-6:52 pm

2 stops14h 32m

Santa Rosa Sonoma County

Tue 4/22

12:45 pm-5:44 am

2 stops13h 59m

$579

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 5/6

7:20 am-12:16 pm

1 stop7h 56m

$265

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Mon 5/26

6:59 pm-7:07 pm

1 stop27h 08m

$377

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 5/6

6:30 am-11:39 pm

3 stops20h 09m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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.

Cheapflights Insights

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

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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Santa Rosa (average of $202). Flying from Philadelphia to Santa Rosa in June is currently the most expensive (average of $395). 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.

Rainfall in Santa Rosa by month

Plan your trip to Santa Rosa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santa Rosa ranges from 0.0 - 7.1 inches per month. January is typically the wettest month, when rainfall can reach 7.1 in. July is typically the driest time to visit Santa Rosa when rainfall is around 0.0 in.

Temperature in Santa Rosa by month

Plan your trip to Santa Rosa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santa Rosa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

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 March 26, 2025.
Alaska Airlines
8.0
Very good
9,789 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,789 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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.

  • What are the cheapest airlines flying from Philadelphia to Santa Rosa round-trip?

    American Airlines, at $529, was found to be the cheapest airline from Philadelphia to Santa Rosa. An alternate airline flying to your destination would be Alaska Airlines. American Airlines is priced at 21% 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.

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

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to Santa Rosa (average of $202). Flying from Philadelphia to Santa Rosa in June is currently the most expensive (average of $395). 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
Fort Bragg
Ukiah
Mendocino

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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$448Average$658FlexibilityNo cancel feeOn-time71%
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