Southwest® flights from Pittsburgh to San Diego from $129

Promo Code

Low fares from Pittsburgh to San Diego

$

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 10/07/2026

One-way

Basic

From
$129
Seen: 22 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 11/03/2026

One-way

Basic

From
$129
Seen: 13 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 10/21/2026

One-way

Basic

From
$129
Seen: 13 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 09/23/2026

One-way

Basic

From
$129
Seen: 21 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 09/15/2026

One-way

Basic

From
$129
Seen: 2 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 09/09/2026

One-way

Basic

From
$129
Seen: 12 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Pittsburgh to San Diego

Aug 2026
From$129*
Seen: 50 minutes ago
One Way/Basic
Sep 2026
From$129*
Seen: 12 hrs ago
One Way/Basic
Oct 2026
From$129*
Seen: 20 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $380
Displaying fares for August-2026
  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    01

    Sat

    AUG

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    02

    Sun

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    03

    Mon

  • PIT–SAN, 08/04/2026: From $299
    04

    Tue

  • PIT–SAN, 08/05/2026: From $299
    05

    Wed

  • PIT–SAN, 08/06/2026: From $380
    06

    Thu

  • PIT–SAN, 08/07/2026: From $349
    07

    Fri

  • PIT–SAN, 08/08/2026: From $280
    08

    Sat

  • PIT–SAN, 08/09/2026: From $349
    09

    Sun

  • PIT–SAN, 08/10/2026: From $349
    10

    Mon

  • PIT–SAN, 08/11/2026: From $280
    11

    Tue

  • PIT–SAN, 08/12/2026: From $280
    12

    Wed

  • PIT–SAN, 08/13/2026: From $349
    13

    Thu

  • PIT–SAN, 08/14/2026: From $253
    14

    Fri

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    15

    Sat

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    16

    Sun

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    17

    Mon

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    18

    Tue

  • PIT–SAN, 08/19/2026: From $253
    19

    Wed

  • PIT–SAN, 08/20/2026: From $149
    20

    Thu

  • PIT–SAN, 08/21/2026: From $177
    21

    Fri

  • PIT–SAN, 08/22/2026: From $154
    22

    Sat

  • PIT–SAN, 08/23/2026: From $204
    23

    Sun

  • PIT–SAN, 08/24/2026: From $149
    24

    Mon

  • PIT–SAN, 08/25/2026: From $154
    25

    Tue

  • PIT–SAN, 08/26/2026: From $129
    26

    Wed

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • PIT–SAN, 08/30/2026: From $204
    30

    Sun

  • PIT–SAN, 08/31/2026: From $160
    31

    Mon

    • Range$129-$380

    *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:
    Pittsburgh International Airport
    Arriving at:
    San Diego International Airport
    Distance:
    2106 miles

    Route Information

    156† 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 156 weekly flights from Pittsburgh to San Diego on Southwest Airlines.
    To find the lowest fares by day and time to fly Pittsburgh to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Pittsburgh to San Diego—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Pittsburgh