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Cheap flights from Philadelphia to San Francisco from $223

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 3/24. 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
7:25 am - 11:15 pm
PHL
-
STS
18h 50m
2 stops
Alaska Airlines Logo
6:53 pm - 6:05 am
STS
-
PHL
8h 12m
1 stop
$345Alaska Airlines
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
6:47 pm - 6:01 pm
PHL
-
STS
26h 14m
1 stop
Alaska Airlines Logo
6:53 pm - 6:05 am
STS
-
PHL
8h 12m
1 stop
$370Alaska Airlines
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
6:47 pm - 10:30 am
PHL
-
STS
18h 43m
1 stop
Alaska Airlines Logo
7:46 pm - 6:02 am
STS
-
PHL
31h 16m
1 stop
$403Alaska Airlines
Tue, Apr 14 - Wed, Apr 22
Alaska Airlines Logo
7:25 am - 6:01 pm
PHL
-
STS
13h 36m
1 stop
Alaska Airlines Logo
6:53 pm - 6:05 am
STS
-
PHL
8h 12m
1 stop
$420Alaska Airlines
Thu, Apr 16 - Tue, Apr 21
Alaska Airlines Logo
5:15 pm - 4:33 pm
PHL
-
STS
26h 18m
1 stop
Alaska Airlines Logo
7:02 pm - 4:02 pm
STS
-
PHL
18h 00m
1 stop
$423Alaska Airlines
Fri, May 15 - Sun, May 17
Alaska Airlines Logo
6:47 pm - 6:01 pm
PHL
-
STS
26h 14m
1 stop
Alaska Airlines Logo
6:53 pm - 5:47 pm
STS
-
PHL
19h 54m
1 stop
$433Alaska Airlines
Tue, Apr 14 - Mon, Apr 20
Alaska Airlines Logo
7:25 am - 5:10 pm
PHL
-
STS
12h 45m
2 stops
Alaska Airlines Logo
6:53 pm - 6:05 am
STS
-
PHL
8h 12m
1 stop
$436Alaska Airlines
Tue, Apr 14 - Mon, Apr 20
Alaska Airlines Logo
7:25 am - 10:30 am
PHL
-
STS
30h 05m
1 stop
Alaska Airlines Logo
6:53 pm - 6:05 am
STS
-
PHL
8h 12m
1 stop
$443Alaska Airlines
Tue, Mar 31 - Wed, Apr 8
Alaska Airlines Logo
7:25 am - 6:01 pm
PHL
-
STS
13h 36m
1 stop
Alaska Airlines Logo
1:13 pm - 6:02 am
STS
-
PHL
13h 49m
1 stop
$453Alaska Airlines
Thu, Apr 16 - Wed, Apr 22
Alaska Airlines Logo
7:25 am - 5:10 pm
PHL
-
STS
12h 45m
2 stops
Alaska Airlines Logo
6:53 pm - 6:05 am
STS
-
PHL
8h 12m
1 stop
$455Alaska Airlines
Thu, Apr 16 - Tue, Apr 21

Alaska Airlines flights from Philadelphia to Santa Rosa

Our best Alaska Airlines deals on Philadelphia to Santa Rosa flight tickets
Alaska Airlines
Apr 14
PHL7:25 amPhiladelphia
18h 50m
2 stops
STS11:15 pmSanta Rosa Sonoma County
Apr 21
STS6:53 pmSanta Rosa Sonoma County
8h 12m
1 stop
PHL6:05 amPhiladelphia
$345
Alaska Airlines
Apr 14
PHL6:47 pmPhiladelphia
26h 14m
1 stop
STS6:01 pmSanta Rosa Sonoma County
Apr 21
STS6:53 pmSanta Rosa Sonoma County
8h 12m
1 stop
PHL6:05 amPhiladelphia
$370
Alaska Airlines
Apr 14
PHL6:47 pmPhiladelphia
18h 43m
1 stop
STS10:30 amSanta Rosa Sonoma County
Apr 22
STS7:46 pmSanta Rosa Sonoma County
31h 16m
1 stop
PHL6:02 amPhiladelphia
$403

American Airlines flights from Philadelphia to Santa Rosa

Our best American Airlines deals on Philadelphia to Santa Rosa flight tickets
American Airlines
Feb 25
PHL8:30 amPhiladelphia
10h 23m
1 stop
STS3:53 pmSanta Rosa Sonoma County
Feb 27
STS4:23 pmSanta Rosa Sonoma County
10h 12m
1 stop
PHL5:35 amPhiladelphia
$524
American Airlines
Apr 5
PHL8:38 amPhiladelphia
10h 15m
1 stop
STS3:53 pmSanta Rosa Sonoma County
Apr 8
STS4:23 pmSanta Rosa Sonoma County
14h 13m
2 stops
PHL9:36 amPhiladelphia
$574
American Airlines
Apr 5
PHL7:00 amPhiladelphia
11h 53m
2 stops
STS3:53 pmSanta Rosa Sonoma County
Apr 8
STS4:23 pmSanta Rosa Sonoma County
12h 17m
2 stops
PHL7:40 amPhiladelphia
$595

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 February 4, 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

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 4/14

7:25 am-11:15 pm

2 stops18h 50m

Santa Rosa Sonoma County

Tue 4/21

6:53 pm-6:05 am

1 stop8h 12m

$345

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 4/14

6:47 pm-6:01 pm

1 stop26h 14m

Santa Rosa Sonoma County

Tue 4/21

6:53 pm-6:05 am

1 stop8h 12m

$370

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 4/14

6:47 pm-10:30 am

1 stop18h 43m

Santa Rosa Sonoma County

Wed 4/22

7:46 pm-6:02 am

1 stop31h 16m

$403

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 4/16

7:25 am-6:01 pm

1 stop13h 36m

Santa Rosa Sonoma County

Tue 4/21

6:53 pm-6:05 am

1 stop8h 12m

$420

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Fri 5/15

5:15 pm-4:33 pm

1 stop26h 18m

Santa Rosa Sonoma County

Sun 5/17

7:02 pm-4:02 pm

1 stop18h 00m

$423

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 4/14

6:47 pm-6:01 pm

1 stop26h 14m

Santa Rosa Sonoma County

Mon 4/20

6:53 pm-5:47 pm

1 stop19h 54m

$433

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 4/14

7:25 am-5:10 pm

2 stops12h 45m

Santa Rosa Sonoma County

Mon 4/20

6:53 pm-6:05 am

1 stop8h 12m

$436

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 3/31

7:25 am-10:30 am

1 stop30h 05m

Santa Rosa Sonoma County

Wed 4/8

6:53 pm-6:05 am

1 stop8h 12m

$443

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 4/16

7:25 am-6:01 pm

1 stop13h 36m

Santa Rosa Sonoma County

Wed 4/22

1:13 pm-6:02 am

1 stop13h 49m

$453

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 4/16

7:25 am-5:10 pm

2 stops12h 45m

Santa Rosa Sonoma County

Tue 4/21

6:53 pm-6:05 am

1 stop8h 12m

$455

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 cheapest month to fly to Santa Rosa?

If you are unable to visit Santa Rosa during the month of March, then departing from Philadelphia during the month January is also very affordable. Most momondo users find prices during this month for around $428.

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

9h 07m

Direct flights

None
The fastest flight from Philadelphia to Santa Rosa takes 9h 07m
There are no direct flights from Philadelphia to Santa Rosa. There are no popular flight routes from Philadelphia to Santa Rosa.
Search flight deals

  • 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 9h 07m.

  • 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
7.2
11,216 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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