Flights from San Diego, CA to Seattle, WA

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Best Deals on Flights From San Diego, CA (SAN) to Seattle, WA (SEA)

Sep 2026
from$200*
Last seen: 7 hours ago
One-way/Economy
Oct 2026
from$78*
Last seen: 14 hours ago
One-way/Economy
Nov 2026
from$78*
Last seen: 2 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $78
cmp-daily-histogram-bars-legend-max-price-aria-label $356
Displaying fares for September-2026
  • SAN–SEA: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

    SEP

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    24

    Thu

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    25

    Fri

  • SAN–SEA, Sep 26, 2026: from $200
    26

    Sat

  • SAN–SEA, Sep 27, 2026: from $214
    27

    Sun

  • SAN–SEA: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

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    29

    Tue

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    30

    Wed

  • SAN–SEA, Oct 1, 2026: from $198
    01

    Thu

    OCT

  • SAN–SEA, Oct 2, 2026: from $204
    02

    Fri

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    03

    Sat

  • SAN–SEA, Oct 4, 2026: from $198
    04

    Sun

  • SAN–SEA, Oct 5, 2026: from $198
    05

    Mon

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    06

    Tue

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    07

    Wed

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    08

    Thu

  • SAN–SEA, Oct 9, 2026: from $356
    09

    Fri

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    10

    Sat

  • SAN–SEA: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

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

    Mon

  • SAN–SEA, Oct 13, 2026: from $170
    13

    Tue

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    14

    Wed

  • SAN–SEA, Oct 15, 2026: from $113
    15

    Thu

  • SAN–SEA, Oct 16, 2026: from $150
    16

    Fri

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    17

    Sat

  • SAN–SEA, Oct 18, 2026: from $170
    18

    Sun

  • SAN–SEA, Oct 19, 2026: from $150
    19

    Mon

  • SAN–SEA, Oct 20, 2026: from $78
    20

    Tue

  • SAN–SEA, Oct 21, 2026: from $113
    21

    Wed

  • SAN–SEA, Oct 22, 2026: from $78
    22

    Thu

    • Range$78-$356

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from San Diego, CA to Seattle, WA on Frontier

    $
    Flights Deals from San Diego, CA to Seattle, WA on Frontier
    From
    To
    San Diego, CA (SAN)Seattle, WA (SEA)One-way
    /
    Discount Den Basic Fare    		Departing Jan 25, 2027

    From

    $113

    Last seen: 11 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    San Diego, CA Seattle, WA

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