American Airlines flights from Indianapolis to Seattle

Recent searches for flights from Indianapolis to Seattle

Sep 2026
From$454*
Updated: 1 hour ago
Round tripIEconomy
Oct 2026
From$347*
Updated: 1 hour ago
Round tripIEconomy
Nov 2026
From$347*
Updated: 1 hour ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $347
cmp-daily-histogram-bars-legend-max-price-aria-label $653
Displaying fares for September-2026
  • IND–SEA, 09/14/26 – 09/21/26: From $653
    14

    Mo

    SEP

  • IND–SEA, 09/15/26 – 09/22/26: From $561
    15

    Tu

  • IND–SEA, 09/16/26 – 09/23/26: From $561
    16

    We

  • IND–SEA, 09/17/26 – 09/24/26: From $653
    17

    Th

  • IND–SEA, 09/18/26 – 09/25/26: From $653
    18

    Fr

  • IND–SEA, 09/19/26 – 09/26/26: From $561
    19

    Sa

  • IND–SEA, 09/20/26 – 09/27/26: From $653
    20

    Su

  • IND–SEA, 09/21/26 – 09/28/26: From $630
    21

    Mo

  • IND–SEA, 09/22/26 – 09/29/26: From $561
    22

    Tu

  • IND–SEA, 09/23/26 – 09/30/26: From $561
    23

    We

  • IND–SEA, 09/24/26 – 10/01/26: From $630
    24

    Th

  • IND–SEA, 09/25/26 – 10/02/26: From $630
    25

    Fr

  • IND–SEA, 09/26/26 – 10/03/26: From $561
    26

    Sa

  • IND–SEA, 09/27/26 – 10/04/26: From $630
    27

    Su

  • IND–SEA, 09/28/26 – 10/05/26: From $477
    28

    Mo

  • IND–SEA, 09/29/26 – 10/06/26: From $454
    29

    Tu

  • IND–SEA, 09/30/26 – 10/07/26: From $454
    30

    We

  • IND–SEA, 10/01/26 – 10/04/26: From $477
    01

    Th

    OCT

  • IND–SEA, 10/02/26 – 10/09/26: From $477
    02

    Fr

  • IND–SEA, 10/03/26 – 10/10/26: From $454
    03

    Sa

  • IND–SEA, 10/04/26 – 10/11/26: From $477
    04

    Su

  • IND–SEA, 10/05/26 – 10/12/26: From $347
    05

    Mo

  • IND–SEA, 10/06/26 – 10/13/26: From $347
    06

    Tu

  • IND–SEA, 10/07/26 – 10/14/26: From $347
    07

    We

  • IND–SEA, 10/08/26 – 10/15/26: From $532
    08

    Th

  • IND–SEA, 10/09/26 – 10/16/26: From $442
    09

    Fr

  • IND–SEA, 10/10/26 – 10/17/26: From $403
    10

    Sa

  • IND–SEA, 10/11/26 – 10/18/26: From $492
    11

    Su

  • IND–SEA, 10/12/26 – 10/16/26: From $442
    12

    Mo

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

    Tu

    • range$347-$653

    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 Indianapolis to Seattle flights

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    Indianapolis (IND)to

    Seattle (SEA)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 21 hours ago

    Indianapolis (IND)to

    Seattle (SEA)
    10/16/26 - 10/23/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour ago

    Indianapolis (IND)to

    Seattle (SEA)
    10/23/26 - 10/30/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour ago

    Indianapolis (IND)to

    Seattle (SEA)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour ago

    Indianapolis (IND)to

    Seattle (SEA)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour ago

    Indianapolis (IND)to

    Seattle (SEA)
    10/30/26 - 11/06/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour ago

    Indianapolis (IND)to

    Seattle (SEA)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour ago

    Indianapolis (IND)to

    Seattle (SEA)
    12/09/26 - 12/16/26

    Round trip

    Economy

    from
    $347Fare subject to changes
    Updated: 1 hour 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 Indianapolis to Seattle

    Looking for lower fares on your trip from Indianapolis 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

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    American Airlines flights from Indianapolis to Seattle