Southwest® flights from Pittsburgh to San Diego from $139

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Low fares from Pittsburgh to San Diego

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Pittsburgh (PIT)to

San Diego (SAN)
Depart: 10/20/2026

One-way

Basic

From
$139
Seen: 21 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 09/26/2026

One-way

Basic

From
$139
Seen: 12 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 10/06/2026

One-way

Basic

From
$139
Seen: 8 hrs ago

Pittsburgh (PIT)to

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

One-way

Basic

From
$139
Seen: 9 hrs ago

Pittsburgh (PIT)to

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

One-way

Basic

From
$139
Seen: 8 hrs ago

Pittsburgh (PIT)to

San Diego (SAN)
Depart: 09/30/2026

One-way

Basic

From
$139
Seen: 23 hrs ago

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Explore flights from Pittsburgh to San Diego

Aug 2026
From$299*
Seen: 13 hrs ago
One Way/Basic
Sep 2026
From$139*
Seen: 23 hrs ago
One Way/Basic
Oct 2026
From$139*
Seen: 18 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $139
cmp-daily-histogram-bars-legend-max-price-aria-label $380
Displaying fares for August-2026
  • PIT–SAN, 08/21/2026: From $380
    21

    Fri

    AUG

  • PIT–SAN, 08/22/2026: From $299
    22

    Sat

  • PIT–SAN, 08/23/2026: From $380
    23

    Sun

  • PIT–SAN, 08/24/2026: From $380
    24

    Mon

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

  • PIT–SAN, 08/26/2026: From $299
    26

    Wed

  • PIT–SAN, 08/27/2026: From $349
    27

    Thu

  • PIT–SAN, 08/28/2026: From $349
    28

    Fri

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

    Sat

  • PIT–SAN, 08/30/2026: From $349
    30

    Sun

  • PIT–SAN, 08/31/2026: From $349
    31

    Mon

  • PIT–SAN, 09/01/2026: From $280
    01

    Tue

    SEP

  • PIT–SAN, 09/02/2026: From $280
    02

    Wed

  • PIT–SAN, 09/03/2026: From $253
    03

    Thu

  • PIT–SAN, 09/04/2026: From $253
    04

    Fri

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • PIT–SAN, 09/07/2026: From $253
    07

    Mon

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • PIT–SAN, 09/09/2026: From $253
    09

    Wed

  • PIT–SAN, 09/10/2026: From $149
    10

    Thu

  • PIT–SAN, 09/11/2026: From $160
    11

    Fri

  • PIT–SAN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • PIT–SAN, 09/13/2026: From $204
    13

    Sun

  • PIT–SAN, 09/14/2026: From $238
    14

    Mon

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

    Tue

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

    Wed

  • PIT–SAN, 09/17/2026: From $165
    17

    Thu

  • PIT–SAN, 09/18/2026: From $165
    18

    Fri

  • PIT–SAN, 09/19/2026: From $139
    19

    Sat

  • PIT–SAN, 09/20/2026: From $204
    20

    Sun

    • Range$139-$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.

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