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

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Low fares from Phoenix to Seattle/Tacoma

$

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 11/17/2026

One-way

Basic

From
$129
Seen: 22 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 10/12/2026

One-way

Basic

From
$129
Seen: 20 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 11/18/2026

One-way

Basic

From
$129
Seen: 22 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 10/26/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 10/29/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 10/05/2026

One-way

Basic

From
$129
Seen: 13 hrs ago
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Explore flights from Phoenix to Seattle/Tacoma

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

    Tue

    AUG

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

    Wed

  • PHX–SEA, 08/27/2026: From $247
    27

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

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

    Tue

    SEP

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

    Wed

  • PHX–SEA, 09/03/2026: From $247
    03

    Thu

  • PHX–SEA, 09/04/2026: From $269
    04

    Fri

  • PHX–SEA, 09/05/2026: From $205
    05

    Sat

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

    Sun

  • PHX–SEA, 09/07/2026: From $199
    07

    Mon

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

    Tue

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

    Wed

  • PHX–SEA, 09/10/2026: From $199
    10

    Thu

  • PHX–SEA, 09/11/2026: From $199
    11

    Fri

  • PHX–SEA, 09/12/2026: From $169
    12

    Sat

  • PHX–SEA, 09/13/2026: From $213
    13

    Sun

  • PHX–SEA, 09/14/2026: From $129
    14

    Mon

  • PHX–SEA, 09/15/2026: From $129
    15

    Tue

  • PHX–SEA, 09/16/2026: From $129
    16

    Wed

  • PHX–SEA: cmp-view-offers-disclaimer. Find Offers
    17

    Thu

  • PHX–SEA, 09/18/2026: From $185
    18

    Fri

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

    Sat

  • PHX–SEA, 09/20/2026: From $154
    20

    Sun

  • PHX–SEA, 09/21/2026: From $129
    21

    Mon

  • PHX–SEA, 09/22/2026: From $174
    22

    Tue

  • PHX–SEA: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

  • PHX–SEA, 09/24/2026: From $129
    24

    Thu

  • Range$129-$269

    Flight Details

    Departing from:
    Sky Harbor International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Average flight time:
    3 hours 4 minutes
    Distance:
    1107 miles

    Route Information

    156 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.

    Explore Seattle/Tacoma

    The Pacific Northwest is calling. Trade the desert of the American Southwest for the shores of the Puget Sound, and get ready to take in the sights. The Seattle/Tacoma area is home to mountains, vast forests of evergreen trees, and, of course, the Pacific Ocean. Go for a hike, or a boat ride, or camp out amongst the stars. There’s no one way to take in the Seattle scenery, flora, and fauna. Consider a tour of Puget Sound, or guide yourself on an exploration of the bays and harbors from Seattle to Tacoma. Spend a day heading to Mount Rainier National Park and climb, hike, bike, or just picnic. Visit the Tacoma Narrows Bridge and Vashon Island at Point Defiance Park. Try to fit each of these locations in on your trip, or plan to come back time and time again.

    Hungry for more? You’ll certainly be hungry for food after all that hiking, biking, or climbing! Seattle is a great destination for foodies, thanks to its range of offerings from street food to haute cuisine. Fresh seafood abounds—and if you’re at some famous markets, they also fly! And who could forget the deep, rich coffee heritage of the Emerald City? Grab a cuppa from the landmark outposts of world-famous mud purveyors, or stop into a hole-in-the-wall coffee bar and discover something special.

    Questions we hear the most

    The average flight time from Phoenix to Seattle/Tacoma is 3 hours 4 minutes.
    There are 156 weekly flights from Phoenix to Seattle/Tacoma on Southwest Airlines.
    Yes, Southwest flies nonstop from Phoenix to Seattle/Tacoma 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Phoenix to Seattle/Tacoma 3 times per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Phoenix 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 Phoenix 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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