American Airlines flights from Boston to Idaho Falls

Recent searches for flights from Boston to Idaho Falls

Sep 2026
From$444*
Updated: 1 hour ago
Round tripIEconomy
Oct 2026
From$379*
Updated: 1 hour ago
Round tripIEconomy
Nov 2026
From$379*
Updated: 1 hour ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $444
cmp-daily-histogram-bars-legend-max-price-aria-label $930
Displaying fares for September-2026
  • BOS–IDA: cmp-view-offers-disclaimer. Find Offers
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    SEP

  • BOS–IDA, 09/03/26 – 09/10/26: From $671
    03

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  • BOS–IDA, 09/04/26 – 09/11/26: From $612
    04

    Fr

  • BOS–IDA, 09/05/26 – 09/12/26: From $580
    05

    Sa

  • BOS–IDA, 09/06/26 – 09/13/26: From $930
    06

    Su

  • BOS–IDA, 09/07/26 – 09/14/26: From $648
    07

    Mo

  • BOS–IDA, 09/08/26 – 09/15/26: From $647
    08

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  • BOS–IDA, 09/09/26 – 09/16/26: From $606
    09

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  • BOS–IDA, 09/10/26 – 09/17/26: From $640
    10

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  • BOS–IDA, 09/11/26 – 09/18/26: From $612
    11

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  • BOS–IDA, 09/12/26 – 09/19/26: From $754
    12

    Sa

  • BOS–IDA, 09/13/26 – 09/20/26: From $798
    13

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  • BOS–IDA, 09/14/26 – 09/21/26: From $581
    14

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  • BOS–IDA, 09/15/26 – 09/22/26: From $554
    15

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  • BOS–IDA, 09/16/26 – 09/23/26: From $580
    16

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  • BOS–IDA, 09/17/26 – 09/24/26: From $904
    17

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  • BOS–IDA, 09/18/26 – 09/25/26: From $645
    18

    Fr

  • BOS–IDA, 09/19/26 – 09/26/26: From $647
    19

    Sa

  • BOS–IDA, 09/20/26 – 09/27/26: From $738
    20

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  • BOS–IDA, 09/21/26 – 09/28/26: From $608
    21

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  • BOS–IDA, 09/22/26 – 09/29/26: From $495
    22

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  • BOS–IDA, 09/23/26 – 09/30/26: From $444
    23

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  • BOS–IDA, 09/24/26 – 10/01/26: From $639
    24

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  • BOS–IDA, 09/25/26 – 10/02/26: From $469
    25

    Fr

  • BOS–IDA, 09/26/26 – 10/03/26: From $554
    26

    Sa

  • BOS–IDA, 09/27/26 – 10/04/26: From $773
    27

    Su

  • BOS–IDA, 09/28/26 – 10/05/26: From $724
    28

    Mo

  • BOS–IDA, 09/29/26 – 10/06/26: From $554
    29

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  • BOS–IDA: cmp-view-offers-disclaimer. Find Offers
    30

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  • BOS–IDA: cmp-view-offers-disclaimer. Find Offers
    01

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    OCT

    • range$444-$930

    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 Boston to Idaho Falls flights

    $
    keyboard_arrow_down

    Boston (BOS)to

    Idaho Falls (IDA)
    10/15/26 - 10/22/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    10/22/26 - 10/29/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    11/07/26 - 11/14/26

    Round trip

    Economy

    from
    $379Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Idaho Falls (IDA)
    10/16/26 - 10/23/26

    Round trip

    Economy

    from
    $379Fare 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 Boston to Idaho Falls

    Looking for lower fares on your trip from Boston to Idaho Falls? 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 Boston to Idaho Falls