Southwest® flights from Indianapolis to Seattle/Tacoma from $120

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Low fares from Indianapolis to Seattle/Tacoma

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Indianapolis (IND)to

Seattle/Tacoma (SEA)
Depart: 01/09/2027

One-way

Basic

From
$120
Seen: 1 hour ago

Indianapolis (IND)to

Seattle/Tacoma (SEA)
Depart: 12/02/2026

One-way

Basic

From
$120
Seen: 10 hrs ago

Indianapolis (IND)to

Seattle/Tacoma (SEA)
Depart: 11/10/2026

One-way

Basic

From
$120
Seen: 4 hrs ago

Indianapolis (IND)to

Seattle/Tacoma (SEA)
Depart: 11/14/2026

One-way

Basic

From
$125
Seen: 19 hrs ago

Indianapolis (IND)to

Seattle/Tacoma (SEA)
Depart: 11/22/2026

One-way

Basic

From
$157
Seen: 3 hrs ago

Indianapolis (IND)to

Seattle/Tacoma (SEA)
Depart: 01/09/2027

One-way

Choice

From
$168
Seen: 1 hour ago

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Explore flights from Indianapolis to Seattle/Tacoma

Oct 2026
From$286*
Seen: 6 hrs ago
One Way/Basic
Nov 2026
From$120*
Seen: 4 hrs ago
One Way/Basic
Dec 2026
From$120*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $120
cmp-daily-histogram-bars-legend-max-price-aria-label $391
Displaying fares for October-2026
  • IND–SEA, 10/23/2026: From $337
    23

    Fri

    OCT

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    24

    Sat

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    25

    Sun

  • IND–SEA, 10/26/2026: From $337
    26

    Mon

  • IND–SEA, 10/27/2026: From $286
    27

    Tue

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    28

    Wed

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    29

    Thu

  • IND–SEA, 10/30/2026: From $337
    30

    Fri

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    31

    Sat

  • IND–SEA, 11/01/2026: From $380
    01

    Sun

    NOV

  • IND–SEA, 11/02/2026: From $337
    02

    Mon

  • IND–SEA, 11/03/2026: From $291
    03

    Tue

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    04

    Wed

  • IND–SEA, 11/05/2026: From $337
    05

    Thu

  • IND–SEA, 11/06/2026: From $304
    06

    Fri

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    07

    Sat

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    08

    Sun

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    09

    Mon

  • IND–SEA, 11/10/2026: From $120
    10

    Tue

  • IND–SEA, 11/11/2026: From $185
    11

    Wed

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    12

    Thu

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    13

    Fri

  • IND–SEA, 11/14/2026: From $125
    14

    Sat

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    15

    Sun

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    16

    Mon

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    17

    Tue

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    18

    Wed

  • IND–SEA, 11/19/2026: From $239
    19

    Thu

  • IND–SEA, 11/20/2026: From $391
    20

    Fri

  • IND–SEA, 11/21/2026: From $199
    21

    Sat

  • IND–SEA, 11/22/2026: From $157
    22

    Sun

    • Range$120-$391

    *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:
    Indianapolis International Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    1866 miles

    Questions we hear the most

    There are 117 weekly flights from Indianapolis to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly Indianapolis 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 Indianapolis 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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