Alaska Airlines Flights from Phoenix to Seattle

Lowest fares from Phoenix to Seattle

Aug 2026
From$154*
Seen: 22 hours ago
Flight Type One Way|Saver
Sep 2026
From$129*
Seen: 22 hours ago
Flight Type One Way|Saver
Oct 2026
From$129*
Seen: 22 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $247
Displaying fares for August-2026
  • PHX–SEA, Aug 9, 2026: From $247
    09

    Su

    AUG

  • PHX–SEA, Aug 10, 2026: From $247
    10

    Mo

  • PHX–SEA, Aug 11, 2026: From $224
    11

    Tu

  • PHX–SEA, Aug 12, 2026: From $224
    12

    We

  • PHX–SEA, Aug 13, 2026: From $244
    13

    Th

  • PHX–SEA, Aug 14, 2026: From $247
    14

    Fr

  • PHX–SEA, Aug 15, 2026: From $224
    15

    Sa

  • PHX–SEA, Aug 16, 2026: From $247
    16

    Su

  • PHX–SEA, Aug 17, 2026: From $247
    17

    Mo

  • PHX–SEA, Aug 18, 2026: From $224
    18

    Tu

  • PHX–SEA, Aug 19, 2026: From $224
    19

    We

  • PHX–SEA, Aug 20, 2026: From $233
    20

    Th

  • PHX–SEA, Aug 21, 2026: From $247
    21

    Fr

  • PHX–SEA, Aug 22, 2026: From $169
    22

    Sa

  • PHX–SEA, Aug 23, 2026: From $213
    23

    Su

  • PHX–SEA, Aug 24, 2026: From $199
    24

    Mo

  • PHX–SEA, Aug 25, 2026: From $169
    25

    Tu

  • PHX–SEA, Aug 26, 2026: From $169
    26

    We

  • PHX–SEA, Aug 27, 2026: From $199
    27

    Th

  • PHX–SEA, Aug 28, 2026: From $199
    28

    Fr

  • PHX–SEA, Aug 29, 2026: From $154
    29

    Sa

  • PHX–SEA, Aug 30, 2026: From $154
    30

    Su

  • PHX–SEA, Aug 31, 2026: From $154
    31

    Mo

  • PHX–SEA, Sep 1, 2026: From $154
    01

    Tu

    SEP

  • PHX–SEA, Sep 2, 2026: From $154
    02

    We

  • PHX–SEA, Sep 3, 2026: From $154
    03

    Th

  • PHX–SEA, Sep 4, 2026: From $154
    04

    Fr

  • PHX–SEA, Sep 5, 2026: From $144
    05

    Sa

  • PHX–SEA, Sep 6, 2026: From $139
    06

    Su

  • PHX–SEA, Sep 7, 2026: From $154
    07

    Mo

  • PHX–SEA, Sep 8, 2026: From $129
    08

    Tu

    • Range$129-$247

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights Phoenix to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights Phoenix to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 2, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 8, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 16, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 19, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 26, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 30, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 13, 2026

    From

    $129

    Seen: 22 hours ago

    Phoenix (PHX)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 28, 2026

    From

    $129

    Seen: 22 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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