Southwest® flights from Pittsburgh to Seattle/Tacoma from $134

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Low fares from Pittsburgh to Seattle/Tacoma

$

Pittsburgh (PIT)to

Seattle/Tacoma (SEA)
Depart: 09/02/2026

One-way

Basic

From
$134
Seen: 22 hrs ago

Pittsburgh (PIT)to

Seattle/Tacoma (SEA)
Depart: 08/24/2026

One-way

Basic

From
$134
Seen: 15 hrs ago

Pittsburgh (PIT)to

Seattle/Tacoma (SEA)
Depart: 10/02/2026

One-way

Basic

From
$134
Seen: 6 hrs ago

Pittsburgh (PIT)to

Seattle/Tacoma (SEA)
Depart: 10/06/2026

One-way

Basic

From
$134
Seen: 6 hrs ago

Pittsburgh (PIT)to

Seattle/Tacoma (SEA)
Depart: 11/05/2026

One-way

Basic

From
$134
Seen: 1 hour ago

Pittsburgh (PIT)to

Seattle/Tacoma (SEA)
Depart: 09/11/2026

One-way

Basic

From
$134
Seen: 15 hrs ago

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Explore flights from Pittsburgh to Seattle/Tacoma

Aug 2026
From$134*
Seen: 15 hrs ago
One Way/Basic
Sep 2026
From$134*
Seen: 15 hrs ago
One Way/Basic
Oct 2026
From$134*
Seen: 3 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $134
cmp-daily-histogram-bars-legend-max-price-aria-label $244
Displaying fares for August-2026
  • PIT–SEA: cmp-view-offers-disclaimer. Find Offers
    02

    Sun

    AUG

  • PIT–SEA, 08/03/2026: From $215
    03

    Mon

  • PIT–SEA: cmp-view-offers-disclaimer. Find Offers
    04

    Tue

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

    Wed

  • PIT–SEA, 08/06/2026: From $220
    06

    Thu

  • PIT–SEA, 08/07/2026: From $164
    07

    Fri

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

    Sat

  • PIT–SEA: cmp-view-offers-disclaimer. Find Offers
    09

    Sun

  • PIT–SEA, 08/10/2026: From $164
    10

    Mon

  • PIT–SEA, 08/11/2026: From $164
    11

    Tue

  • PIT–SEA, 08/12/2026: From $164
    12

    Wed

  • PIT–SEA, 08/13/2026: From $164
    13

    Thu

  • PIT–SEA, 08/14/2026: From $164
    14

    Fri

  • PIT–SEA, 08/15/2026: From $244
    15

    Sat

  • PIT–SEA, 08/16/2026: From $189
    16

    Sun

  • PIT–SEA, 08/17/2026: From $134
    17

    Mon

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

    Tue

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

    Wed

  • PIT–SEA: cmp-view-offers-disclaimer. Find Offers
    20

    Thu

  • PIT–SEA, 08/21/2026: From $134
    21

    Fri

  • PIT–SEA, 08/22/2026: From $164
    22

    Sat

  • PIT–SEA, 08/23/2026: From $164
    23

    Sun

  • PIT–SEA, 08/24/2026: From $134
    24

    Mon

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

    Tue

  • PIT–SEA: cmp-view-offers-disclaimer. Find Offers
    26

    Wed

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

    Thu

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

    Fri

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

    Sat

  • PIT–SEA, 08/30/2026: From $134
    30

    Sun

  • PIT–SEA: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

  • PIT–SEA, 09/01/2026: From $134
    01

    Tue

    SEP

    • Range$134-$244

    *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:
    Seattle/Tacoma International Airport
    Distance:
    2125 miles

    Route Information

    84† 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 84 weekly flights from Pittsburgh to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly Pittsburgh to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
    You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
    Yes! Flights from Pittsburgh to Seattle/Tacoma—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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