Alaska Airlines Flights from Seattle to San Diego

Lowest fares from Seattle to San Diego

Aug 2026
From$184*
Seen: 4 hours ago
Flight Type One Way|Saver
Sep 2026
From$94*
Seen: 28 minutes ago
Flight Type One Way|Saver
Oct 2026
From$109*
Seen: 12 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $94
cmp-daily-histogram-bars-legend-max-price-aria-label $324
Displaying fares for August-2026
  • SEA–SAN, Aug 12, 2026: From $324
    12

    We

    AUG

  • SEA–SAN, Aug 13, 2026: From $324
    13

    Th

  • SEA–SAN, Aug 14, 2026: From $324
    14

    Fr

  • SEA–SAN, Aug 15, 2026: From $324
    15

    Sa

  • SEA–SAN, Aug 16, 2026: From $324
    16

    Su

  • SEA–SAN, Aug 17, 2026: From $324
    17

    Mo

  • SEA–SAN, Aug 18, 2026: From $324
    18

    Tu

  • SEA–SAN, Aug 19, 2026: From $299
    19

    We

  • SEA–SAN, Aug 20, 2026: From $299
    20

    Th

  • SEA–SAN, Aug 21, 2026: From $299
    21

    Fr

  • SEA–SAN, Aug 22, 2026: From $299
    22

    Sa

  • SEA–SAN, Aug 23, 2026: From $299
    23

    Su

  • SEA–SAN, Aug 24, 2026: From $299
    24

    Mo

  • SEA–SAN, Aug 25, 2026: From $299
    25

    Tu

  • SEA–SAN, Aug 26, 2026: From $224
    26

    We

  • SEA–SAN, Aug 27, 2026: From $224
    27

    Th

  • SEA–SAN, Aug 28, 2026: From $224
    28

    Fr

  • SEA–SAN, Aug 29, 2026: From $224
    29

    Sa

  • SEA–SAN, Aug 30, 2026: From $224
    30

    Su

  • SEA–SAN, Aug 31, 2026: From $184
    31

    Mo

  • SEA–SAN, Sep 1, 2026: From $144
    01

    Tu

    SEP

  • SEA–SAN, Sep 2, 2026: From $144
    02

    We

  • SEA–SAN, Sep 3, 2026: From $144
    03

    Th

  • SEA–SAN, Sep 4, 2026: From $169
    04

    Fr

  • SEA–SAN, Sep 5, 2026: From $109
    05

    Sa

  • SEA–SAN, Sep 6, 2026: From $94
    06

    Su

  • SEA–SAN, Sep 7, 2026: From $234
    07

    Mo

  • SEA–SAN, Sep 8, 2026: From $157
    08

    Tu

  • SEA–SAN, Sep 9, 2026: From $144
    09

    We

  • SEA–SAN, Sep 10, 2026: From $144
    10

    Th

  • SEA–SAN, Sep 11, 2026: From $109
    11

    Fr

    • Range$94-$324

    *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 Seattle to San Diego.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to San Diego.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Sep 6, 2026

    From

    $94

    Seen: 28 minutes ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Sep 5, 2026

    From

    $109

    Seen: 4 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Sep 11, 2026

    From

    $109

    Seen: 12 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Oct 30, 2026

    From

    $109

    Seen: 12 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Dec 25, 2026

    From

    $122

    Seen: 12 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Nov 10, 2026

    From

    $129

    Seen: 12 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Nov 3, 2026

    From

    $129

    Seen: 12 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Sep 19, 2026

    From

    $129

    Seen: 12 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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