Southwest® flights from Santa Rosa to Philadelphia from $142

Promo Code

Low fares from Santa Rosa to Philadelphia

$

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 09/02/2026

One-way

Basic

From
$142

Low fares from Santa Rosa to Philadelphia

$

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 09/02/2026

One-way

Basic

From
$142
Seen: 22 hrs ago

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 09/02/2026

One-way

Choice

From
$196
Seen: 22 hrs ago

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 08/06/2026

One-way

Basic

From
$225
Seen: 20 hrs ago

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 09/02/2026

One-way

Choice Preferred

From
$276
Seen: 22 hrs ago

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 07/18/2026

One-way

Basic

From
$279
Seen: 7 hrs ago

Santa Rosa (STS)to

Philadelphia (PHL)
Depart: 08/06/2026

One-way

Choice

From
$280
Seen: 20 hrs ago

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Find low fares

Explore flights from Santa Rosa to Philadelphia

Jul 2026
From$279*
Seen: 7 hrs ago
One Way/Basic
Aug 2026
From$225*
Seen: 20 hrs ago
One Way/Basic
Sep 2026
From$142*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $225
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    • Range$225-$372

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Charles M. Schulz–Sonoma County Airport
    Arriving at:
    Philadelphia International Airport
    Distance:
    2525 miles

    Route Information

    18† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 18 weekly flights from Santa Rosa to Philadelphia on Southwest Airlines.
    To find the lowest fares by day and time to fly Santa Rosa to Philadelphia with Southwest, check out our Low Fare Calendar.
    You can rent a car at Philadelphia International Airport book yours with your flight.
    Yes! Flights from Santa Rosa to Philadelphia—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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