Southwest® flights from Denver to Seattle/Tacoma from $84

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Low fares from Denver to Seattle/Tacoma

$

Denver (DEN)to

Seattle/Tacoma (SEA)
Depart: 12/12/2026

One-way

Basic

From
$84
Seen: 6 hrs ago

Denver (DEN)to

Seattle/Tacoma (SEA)
Depart: 12/08/2026

One-way

Basic

From
$94
Seen: 6 hrs ago

Denver (DEN)to

Seattle/Tacoma (SEA)
Depart: 12/15/2026

One-way

Basic

From
$94
Seen: 3 hrs ago

Denver (DEN)to

Seattle/Tacoma (SEA)
Depart: 12/12/2026

One-way

Choice

From
$129
Seen: 6 hrs ago

Denver (DEN)to

Seattle/Tacoma (SEA)
Depart: 01/16/2027

One-way

Basic

From
$134
Seen: 11 hrs ago

Denver (DEN)to

Seattle/Tacoma (SEA)
Depart: 12/15/2026

One-way

Choice

From
$139
Seen: 3 hrs ago

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Explore flights from Denver to Seattle/Tacoma

Nov 2026
From$220*
Seen: 12 hrs ago
One Way/Basic
Dec 2026
From$84*
Seen: 6 hrs ago
One Way/Basic
Jan 2027
From$134*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $84
cmp-daily-histogram-bars-legend-max-price-aria-label $295
Displaying fares for November-2026
  • DEN–SEA, 11/14/2026: From $295
    14

    Sat

    NOV

  • DEN–SEA, 11/15/2026: From $295
    15

    Sun

  • DEN–SEA: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • DEN–SEA, 11/17/2026: From $295
    17

    Tue

  • DEN–SEA, 11/18/2026: From $295
    18

    Wed

  • DEN–SEA, 11/19/2026: From $295
    19

    Thu

  • DEN–SEA, 11/20/2026: From $275
    20

    Fri

  • DEN–SEA, 11/21/2026: From $275
    21

    Sat

  • DEN–SEA, 11/22/2026: From $275
    22

    Sun

  • DEN–SEA, 11/23/2026: From $275
    23

    Mon

  • DEN–SEA, 11/24/2026: From $275
    24

    Tue

  • DEN–SEA, 11/25/2026: From $275
    25

    Wed

  • DEN–SEA, 11/26/2026: From $220
    26

    Thu

  • DEN–SEA, 11/27/2026: From $225
    27

    Fri

  • DEN–SEA, 11/28/2026: From $235
    28

    Sat

  • DEN–SEA: cmp-view-offers-disclaimer. Find Offers
    29

    Sun

  • DEN–SEA, 11/30/2026: From $230
    30

    Mon

  • DEN–SEA, 12/01/2026: From $225
    01

    Tue

    DEC

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

    Wed

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

    Thu

  • DEN–SEA, 12/04/2026: From $154
    04

    Fri

  • DEN–SEA, 12/05/2026: From $159
    05

    Sat

  • DEN–SEA, 12/06/2026: From $159
    06

    Sun

  • DEN–SEA, 12/07/2026: From $159
    07

    Mon

  • DEN–SEA, 12/08/2026: From $94
    08

    Tue

  • DEN–SEA, 12/09/2026: From $159
    09

    Wed

  • DEN–SEA, 12/10/2026: From $159
    10

    Thu

  • DEN–SEA, 12/11/2026: From $159
    11

    Fri

  • DEN–SEA, 12/12/2026: From $84
    12

    Sat

  • DEN–SEA: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

    • Range$84-$295

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

    Flight Details

    Departing from:
    Denver International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Average flight time:
    2 hours 58 minutes
    Distance:
    1024 miles

    Questions we hear the most

    The average flight time from Denver to Seattle/Tacoma is 2 hours 58 minutes.
    There are 155 weekly flights from Denver to Seattle/Tacoma on Southwest Airlines.
    Yes, Southwest flies nonstop from Denver to Seattle/Tacoma 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Denver to Seattle/Tacoma 3 times per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Denver to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
    You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
    Yes! Flights from Denver to Seattle/Tacoma—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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