Southwest® flights from Seattle/Tacoma to Phoenix from $129

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Low fares from Seattle/Tacoma to Phoenix

$

Seattle/Tacoma (SEA)to

Phoenix (PHX)
Depart: 11/14/2026

One-way

Basic

From
$129
Seen: 16 hrs ago

Seattle/Tacoma (SEA)to

Phoenix (PHX)
Depart: 10/27/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

Seattle/Tacoma (SEA)to

Phoenix (PHX)
Depart: 11/04/2026

One-way

Basic

From
$129
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Phoenix (PHX)
Depart: 10/21/2026

One-way

Basic

From
$129
Seen: 12 hrs ago

Seattle/Tacoma (SEA)to

Phoenix (PHX)
Depart: 09/29/2026

One-way

Basic

From
$129
Seen: 4 hrs ago

Seattle/Tacoma (SEA)to

Phoenix (PHX)
Depart: 10/03/2026

One-way

Basic

From
$129
Seen: 1 hour ago

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Explore flights from Seattle/Tacoma to Phoenix

Aug 2026
From$224*
Seen: 3 hrs ago
One Way/Basic
Sep 2026
From$129*
Seen: 12 hrs ago
One Way/Basic
Oct 2026
From$129*
Seen: 5 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $269
Displaying fares for August-2026
  • SEA–PHX, 08/21/2026: From $247
    21

    Fri

    AUG

  • SEA–PHX, 08/22/2026: From $224
    22

    Sat

  • SEA–PHX, 08/23/2026: From $257
    23

    Sun

  • SEA–PHX, 08/24/2026: From $247
    24

    Mon

  • SEA–PHX, 08/25/2026: From $224
    25

    Tue

  • SEA–PHX, 08/26/2026: From $224
    26

    Wed

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

    Thu

  • SEA–PHX, 08/28/2026: From $247
    28

    Fri

  • SEA–PHX, 08/29/2026: From $224
    29

    Sat

  • SEA–PHX, 08/30/2026: From $247
    30

    Sun

  • SEA–PHX, 08/31/2026: From $247
    31

    Mon

  • SEA–PHX, 09/01/2026: From $224
    01

    Tue

    SEP

  • SEA–PHX, 09/02/2026: From $224
    02

    Wed

  • SEA–PHX, 09/03/2026: From $199
    03

    Thu

  • SEA–PHX, 09/04/2026: From $199
    04

    Fri

  • SEA–PHX, 09/05/2026: From $169
    05

    Sat

  • SEA–PHX, 09/06/2026: From $205
    06

    Sun

  • SEA–PHX, 09/07/2026: From $269
    07

    Mon

  • SEA–PHX, 09/08/2026: From $179
    08

    Tue

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

    Wed

  • SEA–PHX, 09/10/2026: From $154
    10

    Thu

  • SEA–PHX, 09/11/2026: From $154
    11

    Fri

  • SEA–PHX, 09/12/2026: From $154
    12

    Sat

  • SEA–PHX, 09/13/2026: From $154
    13

    Sun

  • SEA–PHX, 09/14/2026: From $154
    14

    Mon

  • SEA–PHX, 09/15/2026: From $154
    15

    Tue

  • SEA–PHX, 09/16/2026: From $154
    16

    Wed

  • SEA–PHX, 09/17/2026: From $154
    17

    Thu

  • SEA–PHX, 09/18/2026: From $154
    18

    Fri

  • SEA–PHX, 09/19/2026: From $129
    19

    Sat

  • SEA–PHX, 09/20/2026: From $139
    20

    Sun

    • Range$129-$269

    *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:
    Seattle/Tacoma International Airport
    Arriving at:
    Sky Harbor International Airport
    Average flight time:
    2 hours 50 minutes
    Distance:
    1107 miles

    Route Information

    155† Weekly flights
    • 3‡ Nonstop flights per day Monday through Friday
    • 3‡ Nonstop flights on Saturday
    • 3‡ Nonstop flights on Sunday

    † 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

    The average flight time from Seattle/Tacoma to Phoenix is 2 hours 50 minutes.
    There are 155 weekly flights from Seattle/Tacoma to Phoenix on Southwest Airlines.
    Yes, Southwest flies nonstop from Seattle/Tacoma to Phoenix 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Seattle/Tacoma to Phoenix 3 times per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Seattle/Tacoma to Phoenix with Southwest, check out our Low Fare Calendar.
    You can rent a car at Sky Harbor International Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to Phoenix—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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