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Cheap flights from Philadelphia to San Francisco from $229

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Francisco departing on 10/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Philadelphia to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:00 am - 12:43 pm
PHL
-
STS
8h 43m
1 stop
Alaska Airlines Logo
5:31 pm - 5:40 am
STS
-
PHL
9h 09m
1 stop
$457Alaska Airlines
Tue, Sep 1 - Wed, Sep 2
Alaska Airlines Logo
7:00 am - 1:06 pm
PHL
-
STS
9h 06m
1 stop
Alaska Airlines Logo
7:00 am - 5:40 am
STS
-
PHL
19h 40m
1 stop
$467Alaska Airlines
Sat, Oct 3 - Wed, Oct 7
Alaska Airlines Logo
7:00 am - 12:43 pm
PHL
-
STS
8h 43m
1 stop
Alaska Airlines Logo
5:31 pm - 5:40 am
STS
-
PHL
9h 09m
1 stop
$477Alaska Airlines
Tue, Aug 25 - Wed, Aug 26
Southwest Logo
5:30 am - 9:30 pm
PHL
-
STS
19h 00m
2 stops
Southwest Logo
7:40 am - 11:30 pm
STS
-
PHL
12h 50m
2 stops
$479Southwest
Wed, Oct 21 - Tue, Oct 27
Alaska Airlines Logo
7:00 am - 7:46 pm
PHL
-
STS
15h 46m
1 stop
Alaska Airlines Logo
11:50 am - 3:45 pm
STS
-
PHL
24h 55m
1 stop
$487Alaska Airlines
Thu, May 28 - Mon, Jun 1
Alaska Airlines Logo
7:00 am - 1:06 pm
PHL
-
STS
9h 06m
1 stop
Alaska Airlines Logo
7:59 pm - 5:40 am
STS
-
PHL
30h 41m
2 stops
$489Alaska Airlines
Wed, Oct 21 - Tue, Oct 27
Alaska Airlines Logo
7:16 pm - 5:04 pm
PHL
-
STS
24h 48m
2 stops
Alaska Airlines Logo
2:53 pm - 3:45 pm
STS
-
PHL
21h 52m
2 stops
$492Alaska Airlines
Thu, May 28 - Mon, Jun 1
Alaska Airlines Logo
7:00 am - 7:46 pm
PHL
-
STS
15h 46m
1 stop
Alaska Airlines Logo
2:53 pm - 3:45 pm
STS
-
PHL
21h 52m
2 stops
$501Alaska Airlines
Thu, May 28 - Mon, Jun 1
Alaska Airlines Logo
7:16 pm - 5:04 pm
PHL
-
STS
24h 48m
2 stops
Alaska Airlines Logo
6:59 pm - 3:45 pm
STS
-
PHL
17h 46m
1 stop
$503Alaska Airlines
Thu, May 28 - Mon, Jun 1
Alaska Airlines Logo
4:45 pm - 11:30 pm
PHL
-
STS
9h 45m
1 stop
Alaska Airlines Logo
2:53 pm - 3:45 pm
STS
-
PHL
21h 52m
2 stops
$506Alaska Airlines
Thu, May 28 - Mon, Jun 1

Alaska Airlines flights from Philadelphia to Santa Rosa

Our best Alaska Airlines deals on Philadelphia to Santa Rosa flight tickets
Alaska Airlines
Sep 1
PHL7:00 amPhiladelphia
8h 43m
1 stop
STS12:43 pmSanta Rosa Sonoma County
Sep 2
STS5:31 pmSanta Rosa Sonoma County
9h 09m
1 stop
PHL5:40 amPhiladelphia
$457
Alaska Airlines
Oct 3
PHL7:00 amPhiladelphia
9h 06m
1 stop
STS1:06 pmSanta Rosa Sonoma County
Oct 7
STS7:00 amSanta Rosa Sonoma County
19h 40m
1 stop
PHL5:40 amPhiladelphia
$467
Alaska Airlines
Aug 25
PHL7:00 amPhiladelphia
8h 43m
1 stop
STS12:43 pmSanta Rosa Sonoma County
Aug 26
STS5:31 pmSanta Rosa Sonoma County
9h 09m
1 stop
PHL5:40 amPhiladelphia
$477

American Airlines flights from Philadelphia to Santa Rosa

Our best American Airlines deals on Philadelphia to Santa Rosa flight tickets
American Airlines
Aug 12
PHL7:05 amPhiladelphia
8h 23m
1 stop
STS12:28 pmSanta Rosa Sonoma County
Aug 16
STS4:18 pmSanta Rosa Sonoma County
10h 26m
1 stop
PHL5:44 amPhiladelphia
$534
American Airlines
May 24
PHL7:00 amPhiladelphia
8h 33m
1 stop
STS12:33 pmSanta Rosa Sonoma County
May 28
STS1:03 pmSanta Rosa Sonoma County
7h 54m
1 stop
PHL11:57 pmPhiladelphia
$539
American Airlines
Jun 4
PHL5:00 amPhiladelphia
10h 05m
1 stop
STS12:05 pmSanta Rosa Sonoma County
Jun 8
STS4:20 pmSanta Rosa Sonoma County
10h 14m
1 stop
PHL5:34 amPhiladelphia
$546

momondo 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, momondo users made 832,500 searches. Data last updated May 10, 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
Quickest round-trip

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 9/1

7:00 am-12:43 pm

1 stop8h 43m

Santa Rosa Sonoma County

Wed 9/2

5:31 pm-5:40 am

1 stop9h 09m

$457

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Sat 10/3

7:00 am-1:06 pm

1 stop9h 06m

Santa Rosa Sonoma County

Wed 10/7

7:00 am-5:40 am

1 stop19h 40m

$467

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 8/25

7:00 am-12:43 pm

1 stop8h 43m

Santa Rosa Sonoma County

Wed 8/26

5:31 pm-5:40 am

1 stop9h 09m

$477

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 10/21

5:30 am-9:30 pm

2 stops19h 00m

Santa Rosa Sonoma County

Tue 10/27

7:40 am-11:30 pm

2 stops12h 50m

$479

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 5/28

7:00 am-7:46 pm

1 stop15h 46m

Santa Rosa Sonoma County

Mon 6/1

11:50 am-3:45 pm

1 stop24h 55m

$487

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 10/21

7:00 am-1:06 pm

1 stop9h 06m

Santa Rosa Sonoma County

Tue 10/27

7:59 pm-5:40 am

2 stops30h 41m

$489

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 5/28

7:16 pm-5:04 pm

2 stops24h 48m

Santa Rosa Sonoma County

Mon 6/1

2:53 pm-3:45 pm

2 stops21h 52m

$492

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 5/28

7:00 am-7:46 pm

1 stop15h 46m

Santa Rosa Sonoma County

Mon 6/1

2:53 pm-3:45 pm

2 stops21h 52m

$501

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 5/28

7:16 pm-5:04 pm

2 stops24h 48m

Santa Rosa Sonoma County

Mon 6/1

6:59 pm-3:45 pm

1 stop17h 46m

$503

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 5/28

4:45 pm-11:30 pm

1 stop9h 45m

Santa Rosa Sonoma County

Mon 6/1

2:53 pm-3:45 pm

2 stops21h 52m

$506

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Philadelphia to Santa Rosa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Philadelphia and Santa Rosa?

What is the cheapest month to fly to Santa Rosa?

If you are unable to visit Santa Rosa during the month of September, then departing from Philadelphia during the month April is also very affordable. Most momondo users find prices during this month for around $0.

When to book flights from Philadelphia to Santa Rosa

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Santa Rosa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Santa Rosa (PHL to STS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Santa Rosa

Fastest flight time

8h 43m

Direct flights

None
The fastest flight from Philadelphia to Santa Rosa takes 8h 43m
There are no direct flights from Philadelphia to Santa Rosa. There are no popular flight routes from Philadelphia to Santa Rosa.
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Frequently asked questions about flying from Philadelphia to Santa Rosa

  • How far is Philadelphia to Santa Rosa Sonoma County by plane?

    Santa Rosa Sonoma County is 2516.5 mi away from Philadelphia. By plane, this route typically takes 8h 43m.

  • When did momondo last update prices for flights from Philadelphia Airport to Santa Rosa Sonoma County Airport?

    Prices for flights from Philadelphia Airport to Santa Rosa Sonoma County Airport were last updated today.

  • How many operators does momondo search for flights from Philadelphia Airport to Santa Rosa Sonoma County Airport?

  • How old do you have to be to fly from Philadelphia Airport to Santa Rosa Sonoma County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Santa Rosa Sonoma County Airport.

  • What documentation or ID do you need to fly to Santa Rosa Sonoma County Airport?

    The travel and health documents required for your trip to Santa Rosa Sonoma County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santa Rosa Sonoma County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Philadelphia to Santa Rosa?

Best airlines flying from Philadelphia to Santa Rosa

Compare and see reviews for airlines that fly from Philadelphia to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $289Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Fort Bragg
Mendocino
Ukiah
Little River
Point Arena

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Santa Rosa?

It is quick and easy to find Philadelphia to Santa Rosa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Santa Rosa that suits you.

Can I find flights from Philadelphia to Santa Rosa with flexible booking policies on momondo?

Flights from Philadelphia to Santa Rosa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Santa Rosa?

Once you have performed a search for Philadelphia to Santa Rosa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Santa Rosa right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Santa Rosa from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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