Southwest® flights from Phoenix to Seattle/Tacoma from $99

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Low fares from Phoenix to Seattle/Tacoma

$

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 08/25/2026

One-way

Basic

From
$99
Seen: 23 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 08/27/2026

One-way

Basic

From
$99
Seen: 6 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 08/28/2026

One-way

Basic

From
$99
Seen: 50 minutes ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 08/26/2026

One-way

Basic

From
$104
Seen: 23 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 09/20/2026

One-way

Basic

From
$106
Seen: 3 hrs ago

Phoenix (PHX)to

Seattle/Tacoma (SEA)
Depart: 11/10/2026

One-way

Basic

From
$119
Seen: 22 hrs ago
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Explore flights from Phoenix to Seattle/Tacoma

cmp-daily-histogram-bars-legend-min-price-aria-label $99
cmp-daily-histogram-bars-legend-max-price-aria-label $247
Displaying fares for August-2026
  • PHX–SEA, 08/04/2026: From $224
    04

    Tue

    AUG

  • PHX–SEA, 08/05/2026: From $224
    05

    Wed

  • PHX–SEA: cmp-view-offers-disclaimer. Find Offers
    06

    Thu

  • PHX–SEA, 08/07/2026: From $247
    07

    Fri

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

    Sat

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

    Sun

  • PHX–SEA, 08/10/2026: From $247
    10

    Mon

  • PHX–SEA, 08/11/2026: From $224
    11

    Tue

  • PHX–SEA: cmp-view-offers-disclaimer. Find Offers
    12

    Wed

  • PHX–SEA, 08/13/2026: From $247
    13

    Thu

  • PHX–SEA, 08/14/2026: From $247
    14

    Fri

  • PHX–SEA, 08/15/2026: From $224
    15

    Sat

  • PHX–SEA, 08/16/2026: From $247
    16

    Sun

  • PHX–SEA, 08/17/2026: From $247
    17

    Mon

  • PHX–SEA, 08/18/2026: From $119
    18

    Tue

  • PHX–SEA, 08/19/2026: From $129
    19

    Wed

  • PHX–SEA, 08/20/2026: From $124
    20

    Thu

  • PHX–SEA, 08/21/2026: From $119
    21

    Fri

  • PHX–SEA, 08/22/2026: From $129
    22

    Sat

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

    Sun

  • PHX–SEA, 08/24/2026: From $119
    24

    Mon

  • PHX–SEA, 08/25/2026: From $99
    25

    Tue

  • PHX–SEA, 08/26/2026: From $104
    26

    Wed

  • PHX–SEA, 08/27/2026: From $99
    27

    Thu

  • PHX–SEA, 08/28/2026: From $99
    28

    Fri

  • PHX–SEA, 08/29/2026: From $119
    29

    Sat

  • PHX–SEA, 08/30/2026: From $144
    30

    Sun

  • PHX–SEA, 08/31/2026: From $154
    31

    Mon

  • PHX–SEA, 09/01/2026: From $154
    01

    Tue

    SEP

  • PHX–SEA: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • PHX–SEA, 09/03/2026: From $159
    03

    Thu

  • Range$99-$247

    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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