American Airlines flights from Denver to Seattle

Recent searches for flights from Denver to Seattle

Aug 2026
From$297*
Updated: 11 hours ago
Round tripIEconomy
Sep 2026
From$287*
Updated: 11 hours ago
Round tripIEconomy
Oct 2026
From$287*
Updated: 11 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $297
cmp-daily-histogram-bars-legend-max-price-aria-label $707
Displaying fares for August-2026
  • DEN–SEA, 08/05/26 – 08/12/26: From $549
    05

    We

    AUG

  • DEN–SEA, 08/06/26 – 08/13/26: From $549
    06

    Th

  • DEN–SEA, 08/07/26 – 08/14/26: From $628
    07

    Fr

  • DEN–SEA, 08/08/26 – 08/15/26: From $707
    08

    Sa

  • DEN–SEA, 08/09/26 – 08/16/26: From $707
    09

    Su

  • DEN–SEA, 08/10/26 – 08/17/26: From $549
    10

    Mo

  • DEN–SEA, 08/11/26 – 08/18/26: From $549
    11

    Tu

  • DEN–SEA, 08/12/26 – 08/19/26: From $467
    12

    We

  • DEN–SEA, 08/13/26 – 08/20/26: From $403
    13

    Th

  • DEN–SEA, 08/14/26 – 08/21/26: From $467
    14

    Fr

  • DEN–SEA, 08/15/26 – 08/22/26: From $503
    15

    Sa

  • DEN–SEA, 08/16/26 – 08/23/26: From $553
    16

    Su

  • DEN–SEA, 08/17/26 – 08/24/26: From $403
    17

    Mo

  • DEN–SEA, 08/18/26 – 08/25/26: From $403
    18

    Tu

  • DEN–SEA, 08/19/26 – 08/26/26: From $312
    19

    We

  • DEN–SEA, 08/20/26 – 08/24/26: From $317
    20

    Th

  • DEN–SEA, 08/21/26 – 08/28/26: From $447
    21

    Fr

  • DEN–SEA, 08/22/26 – 08/29/26: From $387
    22

    Sa

  • DEN–SEA, 08/23/26 – 08/30/26: From $503
    23

    Su

  • DEN–SEA, 08/24/26 – 08/31/26: From $363
    24

    Mo

  • DEN–SEA, 08/25/26 – 09/01/26: From $297
    25

    Tu

  • DEN–SEA, 08/26/26 – 09/02/26: From $327
    26

    We

  • DEN–SEA, 08/27/26 – 09/03/26: From $423
    27

    Th

  • DEN–SEA, 08/28/26 – 09/09/26: From $332
    28

    Fr

  • DEN–SEA, 08/29/26 – 09/05/26: From $361
    29

    Sa

  • DEN–SEA, 08/30/26 – 09/06/26: From $447
    30

    Su

  • DEN–SEA, 08/31/26 – 09/07/26: From $477
    31

    Mo

  • DEN–SEA, 09/01/26 – 09/08/26: From $327
    01

    Tu

    SEP

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

    We

  • DEN–SEA: cmp-view-offers-disclaimer. Find Offers
    03

    Th

  • DEN–SEA, 09/04/26 – 09/11/26: From $520
    04

    Fr

    • range$297-$707

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Denver to Seattle flights

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    Denver (DEN)to

    Seattle (SEA)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    09/09/26 - 09/16/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    09/19/26 - 09/26/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    09/23/26 - 09/30/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    Denver (DEN)to

    Seattle (SEA)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $287Fare subject to changes
    Updated: 11 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Denver to Seattle

    Looking for lower fares on your trip from Denver to Seattle? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Denver to Seattle