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Cheap flights from Philadelphia to San Francisco from $202

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.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 12:46 pm
PHL
-
STS
8h 46m
1 stop
Alaska Airlines Logo
5:34 pm - 5:40 am
STS
-
PHL
9h 06m
1 stop
$403Alaska Airlines
Tue, Sep 15 - Wed, Sep 23
Alaska Airlines Logo
7:00 am - 1:06 pm
PHL
-
STS
9h 06m
1 stop
Alaska Airlines Logo
5:04 pm - 5:40 am
STS
-
PHL
9h 36m
1 stop
$426Alaska Airlines
Wed, Oct 21 - Mon, Oct 26
Alaska Airlines Logo
7:00 am - 6:07 pm
PHL
-
STS
14h 07m
2 stops
Alaska Airlines Logo
5:34 pm - 5:40 am
STS
-
PHL
9h 06m
1 stop
$449Alaska Airlines
Tue, Sep 15 - Wed, Sep 23
Southwest Logo
2:10 pm - 10:35 pm
PHL
-
STS
11h 25m
2 stops
Southwest Logo
1:05 pm - 11:45 pm
STS
-
PHL
7h 40m
1 stop
$454Southwest
Thu, Aug 13 - Mon, Aug 17
American Airlines Logo
7:10 am - 12:26 pm
PHL
-
STS
8h 16m
1 stop
American Airlines Logo
4:20 pm - 5:35 am
STS
-
PHL
10h 15m
1 stop
$458American Airlines
Sat, Oct 3 - Wed, Oct 7
Alaska Airlines Logo
4:06 pm - 7:19 pm
PHL
-
STS
30h 13m
2 stops
Alaska Airlines Logo
5:04 pm - 5:40 am
STS
-
PHL
9h 36m
1 stop
$459Alaska Airlines
Sat, Oct 3 - Wed, Oct 7
Alaska Airlines Logo
7:00 am - 12:46 pm
PHL
-
STS
8h 46m
1 stop
Alaska Airlines Logo
5:34 pm - 5:40 am
STS
-
PHL
9h 06m
1 stop
$471Alaska Airlines
Mon, Sep 14 - Wed, Sep 23
Alaska Airlines Logo
7:00 am - 4:55 pm
PHL
-
STS
12h 55m
2 stops
Alaska Airlines Logo
5:04 pm - 5:40 am
STS
-
PHL
9h 36m
1 stop
$474Alaska Airlines
Wed, Oct 21 - Wed, Oct 28
Delta Logo
6:35 am - 4:08 pm
PHL
-
STS
12h 33m
2 stops
Delta Logo
4:55 pm - 5:41 am
STS
-
PHL
9h 46m
1 stop
$476Delta
Fri, Oct 23 - Tue, Oct 27
Alaska Airlines Logo
6:39 pm - 9:56 pm
PHL
-
STS
30h 17m
1 stop
Alaska Airlines Logo
5:04 pm - 5:40 am
STS
-
PHL
9h 36m
1 stop
$479Alaska Airlines
Thu, Oct 22 - Wed, Oct 28

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Alaska Airlines flights from Philadelphia to Santa Rosa

Our best Alaska Airlines deals on Philadelphia to Santa Rosa flight tickets
Alaska Airlines
Sep 15
PHL7:00 amPhiladelphia
8h 46m
1 stop
STS12:46 pmSanta Rosa Sonoma County
Sep 23
STS5:34 pmSanta Rosa Sonoma County
9h 06m
1 stop
PHL5:40 amPhiladelphia
$403
Alaska Airlines
Oct 21
PHL7:00 amPhiladelphia
9h 06m
1 stop
STS1:06 pmSanta Rosa Sonoma County
Oct 26
STS5:04 pmSanta Rosa Sonoma County
9h 36m
1 stop
PHL5:40 amPhiladelphia
$426
Alaska Airlines
Sep 15
PHL7:00 amPhiladelphia
14h 07m
2 stops
STS6:07 pmSanta Rosa Sonoma County
Sep 23
STS5:34 pmSanta Rosa Sonoma County
9h 06m
1 stop
PHL5:40 amPhiladelphia
$449

Southwest flights from Philadelphia to Santa Rosa

Our best Southwest deals on Philadelphia to Santa Rosa flight tickets
Southwest
Aug 13
PHL2:10 pmPhiladelphia
11h 25m
2 stops
STS10:35 pmSanta Rosa Sonoma County
Aug 17
STS1:05 pmSanta Rosa Sonoma County
7h 40m
1 stop
PHL11:45 pmPhiladelphia
$454
Southwest
Sep 12
PHL12:10 pmPhiladelphia
10h 40m
2 stops
STS7:50 pmSanta Rosa Sonoma County
Sep 20
STS7:05 amSanta Rosa Sonoma County
10h 05m
2 stops
PHL8:10 pmPhiladelphia
$481
Southwest
Aug 13
PHL2:10 pmPhiladelphia
11h 25m
2 stops
STS10:35 pmSanta Rosa Sonoma County
Aug 17
STS6:05 amSanta Rosa Sonoma County
12h 00m
2 stops
PHL9:05 pmPhiladelphia
$504

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 June 25, 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 9/15

7:00 am-12:46 pm

1 stop8h 46m

Santa Rosa Sonoma County

Wed 9/23

5:34 pm-5:40 am

1 stop9h 06m

$403

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 10/21

7:00 am-1:06 pm

1 stop9h 06m

Santa Rosa Sonoma County

Mon 10/26

5:04 pm-5:40 am

1 stop9h 36m

$426

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Tue 9/15

7:00 am-6:07 pm

2 stops14h 07m

Santa Rosa Sonoma County

Wed 9/23

5:34 pm-5:40 am

1 stop9h 06m

$449

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 8/13

2:10 pm-10:35 pm

2 stops11h 25m

Santa Rosa Sonoma County

Mon 8/17

1:05 pm-11:45 pm

1 stop7h 40m

$454

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Sat 10/3

7:10 am-12:26 pm

1 stop8h 16m

Santa Rosa Sonoma County

Wed 10/7

4:20 pm-5:35 am

1 stop10h 15m

$458

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Sat 10/3

4:06 pm-7:19 pm

2 stops30h 13m

Santa Rosa Sonoma County

Wed 10/7

5:04 pm-5:40 am

1 stop9h 36m

$459

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Mon 9/14

7:00 am-12:46 pm

1 stop8h 46m

Santa Rosa Sonoma County

Wed 9/23

5:34 pm-5:40 am

1 stop9h 06m

$471

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Wed 10/21

7:00 am-4:55 pm

2 stops12h 55m

Santa Rosa Sonoma County

Wed 10/28

5:04 pm-5:40 am

1 stop9h 36m

$474

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Fri 10/23

6:35 am-4:08 pm

2 stops12h 33m

Santa Rosa Sonoma County

Tue 10/27

4:55 pm-5:41 am

1 stop9h 46m

$476

PhiladelphiaSanta Rosa

PHL - STS

PHLSTS

Philadelphia

Thu 10/22

6:39 pm-9:56 pm

1 stop30h 17m

Santa Rosa Sonoma County

Wed 10/28

5:04 pm-5:40 am

1 stop9h 36m

$479

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 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 39m

Direct flights

None
The fastest flight from Philadelphia to Santa Rosa takes 8h 39m
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 39m.

  • 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 $495Free CancellationRating
7.1
11,757 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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