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

Cheapflights users have booked flights from Santa Rosa to Philadelphia round-trip from $496. Another airline that can offer you cheap pricing is American Airlines. These flights start at 23% lower than the current average price 3 months from now.

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

Travelers seeking maximum savings on their Santa Rosa to Philadelphia flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Departing on a Monday is a good option for securing a great price. You can expect to save up to 35% when planning your travel around this day of the week.

How far in advance should I book a flight from Santa Rosa to Philadelphia?

Find a great deal and save up to 53% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Santa Rosa to Philadelphia within the next two weeks, with the cheapest ticket starting at $458.

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

April is one of the best times of the year to fly to Philadelphia from Santa Rosa. Prices for April average $433 per person but you can even find prices for as low as $229. The most expensive prices can be found in the month of December. Opting for a April flight can save you 23% on your journey compared to booking in December

What is the cheapest time of day to fly from STS to PHL?

One of the essential ways to save on airfare from Santa Rosa to Philadelphia is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 14% on airfare.

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.

$237+ Flights from Santa Rosa to Philadelphia

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Cheap flight deals from Santa Rosa to Philadelphia

Round-trip from	$496 (Alaska Airlines)
One-way from	$237 (Alaska Airlines)
Popular in	November
Cheapest in	September
Average price	$534

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. 14% potential increase in price ($106 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Thu 11/1310:50 amSTS - PHL

2 stops15h 50mAlaska Airlines

Thu 11/206:55 pmPHL - STS

1 stop21h 53mAlaska Airlines

Deal found 6/10

$496

Fri 7/41:10 pmSTS - PHL

1 stop7h 22mAmerican Airlines

Tue 7/86:46 amPHL - STS

1 stop7h 54mAmerican Airlines

Deal found 6/10

$604

Best flights from Santa Rosa to Philadelphia
Discover carefully curated flight deals from Santa Rosa to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Thu 11/1310:50 amSTS - PHL

2 stops15h 50mAlaska Airlines

Thu 11/206:55 pmPHL - STS

1 stop21h 53mAlaska Airlines

Deal found 6/10

$496

Fri 7/41:10 pmSTS - PHL

1 stop7h 22mAmerican Airlines

Tue 7/86:46 amPHL - STS

1 stop7h 54mAmerican Airlines

Deal found 6/10

$604

Last-minute flights from Santa Rosa to Philadelphia
Discover last-minute flight deals from Santa Rosa to Philadelphia. Data last updated June 12, 2025 and is based on user searches.

Wed 6/184:16 pmSTS - PHL

1 stop10h 34mAmerican Airlines

Sun 6/227:29 amPHL - STS

1 stop8h 11mAmerican Airlines

Deal found 6/10

$939

Fri 6/208:01 pmSTS - PHL

2 stops11h 02mAlaska Airlines

Sun 6/226:45 amPHL - STS

1 stop9h 40mAlaska Airlines

Deal found 6/12

$1,044

Tue 7/18:01 pmSTS - PHL

1 stop30h 24mAlaska Airlines

Tue 7/86:45 amPHL - STS

1 stop9h 40mAlaska Airlines

Deal found 6/10

$575

Fri 7/41:10 pmSTS - PHL

1 stop7h 22mAmerican Airlines

Tue 7/86:46 amPHL - STS

1 stop7h 54mAmerican Airlines

Deal found 6/10

$604

One-way flights from Santa Rosa to Philadelphia
Search for one-way flight options from Santa Rosa to Philadelphia. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Fri 9/57:00 amSTS - PHL

1 stop20h 00mAlaska Airlines

Deal found 6/10

$237

Fri 7/41:10 pmSTS - PHL

1 stop7h 22mAmerican Airlines

Deal found 6/11

$315

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Thu 11/13

10:50 am-5:40 am

2 stops15h 50m

Philadelphia

Thu 11/20

6:55 pm-1:48 pm

1 stop21h 53m

$496

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 7/4

1:10 pm-11:32 pm

1 stop7h 22m

Philadelphia

Tue 7/8

6:46 am-11:40 am

1 stop7h 54m

$604

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 9/5

7:00 am-6:00 am

1 stop20h 00m

$237

Santa RosaPhiladelphia

STS - PHL

STSPHL

Santa Rosa Sonoma County

Fri 7/4

1:10 pm-11:32 pm

1 stop7h 22m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Rainfall in Philadelphia by month

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

If weather is an important factor for your trip to Philadelphia, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

See what other customers who have flown with Alaska Airlines and American Airlines from Santa Rosa to Philadelphia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines flying from Santa Rosa to Philadelphia round-trip?
Cheapflights users have booked flights from Santa Rosa to Philadelphia round-trip from $496. Another airline that can offer you cheap pricing is American Airlines. These flights start at 23% lower than the current average price 3 months from now.
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.

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Top airline flying from Santa Rosa to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$421	Average$676	FlexibilityNo cancel fee	On-time71%

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$237+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santa Rosa to Philadelphia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Santa Rosa to Philadelphia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Santa Rosa to Philadelphia

Cheapest flights from Santa Rosa to PhiladelphiaExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

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

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.

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?

Rainfall in Philadelphia by month

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

Temperature in Philadelphia by month

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

Reviews of airlines servicing Philadelphia

See what other customers who have flown with Alaska Airlines and American Airlines from Santa Rosa to Philadelphia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

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

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

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

Traveling to a place near Santa Rosa?

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.

Top airline flying from Santa Rosa to Philadelphia

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Book with Flexibility

Travel Smart

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 June 12, 2025.