Alaska Airlines Flights from Baltimore to Seattle

Lowest fares from Baltimore to Seattle

Aug 2026
From$308*
Seen: 18 hours ago
Flight Type One Way|Saver
Sep 2026
From$141*
Seen: 18 hours ago
Flight Type One Way|Saver
Oct 2026
From$141*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $141
cmp-daily-histogram-bars-legend-max-price-aria-label $584
Displaying fares for August-2026
  • BWI–SEA, Aug 12, 2026: From $374
    12

    We

    AUG

  • BWI–SEA, Aug 13, 2026: From $584
    13

    Th

  • BWI–SEA, Aug 14, 2026: From $534
    14

    Fr

  • BWI–SEA, Aug 15, 2026: From $534
    15

    Sa

  • BWI–SEA, Aug 16, 2026: From $534
    16

    Su

  • BWI–SEA, Aug 17, 2026: From $534
    17

    Mo

  • BWI–SEA, Aug 18, 2026: From $414
    18

    Tu

  • BWI–SEA, Aug 19, 2026: From $414
    19

    We

  • BWI–SEA, Aug 20, 2026: From $469
    20

    Th

  • BWI–SEA, Aug 21, 2026: From $469
    21

    Fr

  • BWI–SEA, Aug 22, 2026: From $469
    22

    Sa

  • BWI–SEA, Aug 23, 2026: From $414
    23

    Su

  • BWI–SEA, Aug 24, 2026: From $469
    24

    Mo

  • BWI–SEA, Aug 25, 2026: From $309
    25

    Tu

  • BWI–SEA, Aug 26, 2026: From $309
    26

    We

  • BWI–SEA, Aug 27, 2026: From $309
    27

    Th

  • BWI–SEA, Aug 28, 2026: From $309
    28

    Fr

  • BWI–SEA, Aug 29, 2026: From $309
    29

    Sa

  • BWI–SEA, Aug 30, 2026: From $309
    30

    Su

  • BWI–SEA, Aug 31, 2026: From $308
    31

    Mo

  • BWI–SEA, Sep 1, 2026: From $141
    01

    Tu

    SEP

  • BWI–SEA, Sep 2, 2026: From $141
    02

    We

  • BWI–SEA, Sep 3, 2026: From $254
    03

    Th

  • BWI–SEA, Sep 4, 2026: From $254
    04

    Fr

  • BWI–SEA, Sep 5, 2026: From $141
    05

    Sa

  • BWI–SEA, Sep 6, 2026: From $209
    06

    Su

  • BWI–SEA, Sep 7, 2026: From $249
    07

    Mo

  • BWI–SEA, Sep 8, 2026: From $141
    08

    Tu

  • BWI–SEA, Sep 9, 2026: From $141
    09

    We

  • BWI–SEA, Sep 10, 2026: From $141
    10

    Th

  • BWI–SEA, Sep 11, 2026: From $182
    11

    Fr

    • Range$141-$584

    *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 Baltimore to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights Baltimore to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 14, 2026

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 12, 2027

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 27, 2027

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 15, 2026

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 3, 2026

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 14, 2026

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 22, 2026

    From

    $141

    Seen: 18 hours ago

    Baltimore (BWI)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 31, 2026

    From

    $141

    Seen: 18 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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