Southwest® flights from St. Louis to Pittsburgh from $132

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Low fares from St. Louis to Pittsburgh

$

St. Louis (STL)to

Pittsburgh (PIT)
Depart: 12/09/2026

One-way

Basic

From
$132
Seen: 22 hrs ago

St. Louis (STL)to

Pittsburgh (PIT)
Depart: 12/15/2026

One-way

Basic

From
$137
Seen: 12 hrs ago

St. Louis (STL)to

Pittsburgh (PIT)
Depart: 12/23/2026

One-way

Basic

From
$137
Seen: 9 hrs ago

St. Louis (STL)to

Pittsburgh (PIT)
Depart: 01/26/2027

One-way

Basic

From
$137
Seen: 7 minutes ago

St. Louis (STL)to

Pittsburgh (PIT)
Depart: 12/05/2026

One-way

Basic

From
$137
Seen: 13 hrs ago

St. Louis (STL)to

Pittsburgh (PIT)
Depart: 12/22/2026

One-way

Basic

From
$137
Seen: 12 hrs ago

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Explore flights from St. Louis to Pittsburgh

Nov 2026
From$269*
Seen: 23 hrs ago
One Way/Basic
Dec 2026
From$132*
Seen: 22 hrs ago
One Way/Basic
Jan 2027
From$137*
Seen: 7 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $132
cmp-daily-histogram-bars-legend-max-price-aria-label $538
Displaying fares for November-2026
  • STL–PIT: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

    NOV

  • STL–PIT, 11/12/2026: From $538
    12

    Thu

  • STL–PIT, 11/13/2026: From $538
    13

    Fri

  • STL–PIT: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

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

    Sun

  • STL–PIT, 11/16/2026: From $538
    16

    Mon

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

    Tue

  • STL–PIT, 11/18/2026: From $460
    18

    Wed

  • STL–PIT: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

  • STL–PIT, 11/20/2026: From $460
    20

    Fri

  • STL–PIT, 11/21/2026: From $460
    21

    Sat

  • STL–PIT: cmp-view-offers-disclaimer. Find Offers
    22

    Sun

  • STL–PIT, 11/23/2026: From $460
    23

    Mon

  • STL–PIT, 11/24/2026: From $269
    24

    Tue

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

    Wed

  • STL–PIT, 11/26/2026: From $269
    26

    Thu

  • STL–PIT, 11/27/2026: From $269
    27

    Fri

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

    Sat

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

    Sun

  • STL–PIT: cmp-view-offers-disclaimer. Find Offers
    30

    Mon

  • STL–PIT, 12/01/2026: From $269
    01

    Tue

    DEC

  • STL–PIT, 12/02/2026: From $147
    02

    Wed

  • STL–PIT, 12/03/2026: From $167
    03

    Thu

  • STL–PIT, 12/04/2026: From $172
    04

    Fri

  • STL–PIT, 12/05/2026: From $137
    05

    Sat

  • STL–PIT, 12/06/2026: From $238
    06

    Sun

  • STL–PIT: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

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

    Tue

  • STL–PIT, 12/09/2026: From $132
    09

    Wed

  • STL–PIT, 12/10/2026: From $157
    10

    Thu

    • Range$132-$538

    *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:
    Lambert-St Louis Int'l Airport
    Arriving at:
    Pittsburgh International Airport
    Average flight time:
    1 hour 35 minutes
    Distance:
    554 miles

    Questions we hear the most

    The average flight time from St. Louis to Pittsburgh is 1 hour 35 minutes.
    There are 153 weekly flights from St. Louis to Pittsburgh on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Pittsburgh once per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Pittsburgh once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Pittsburgh with Southwest, check out our Low Fare Calendar.
    You can rent a car at Pittsburgh International Airport book yours with your flight.
    Yes! Flights from St. Louis to Pittsburgh—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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