American Airlines flights from Idaho Falls to Chicago

Recent searches for flights from Idaho Falls to Chicago

Aug 2026
From$349*
Updated: 2 hours ago
Round tripIEconomy
Sep 2026
From$358*
Updated: 2 hours ago
Round tripIEconomy
Oct 2026
From$281*
Updated: 2 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $349
cmp-daily-histogram-bars-legend-max-price-aria-label $2.5K
Displaying fares for August-2026
  • IDA–ORD, 08/10/26 – 08/17/26: From $2,540
    10

    Mo

    AUG

  • IDA–ORD, 08/11/26 – 08/18/26: From $464
    11

    Tu

  • IDA–ORD, 08/12/26 – 08/19/26: From $556
    12

    We

  • IDA–ORD, 08/13/26 – 08/20/26: From $493
    13

    Th

  • IDA–ORD, 08/14/26 – 08/21/26: From $467
    14

    Fr

  • IDA–ORD, 08/15/26 – 08/22/26: From $483
    15

    Sa

  • IDA–ORD, 08/16/26 – 08/23/26: From $610
    16

    Su

  • IDA–ORD, 08/17/26 – 08/24/26: From $428
    17

    Mo

  • IDA–ORD, 08/18/26 – 08/25/26: From $390
    18

    Tu

  • IDA–ORD, 08/19/26 – 08/26/26: From $380
    19

    We

  • IDA–ORD, 08/20/26 – 08/27/26: From $438
    20

    Th

  • IDA–ORD, 08/21/26 – 08/28/26: From $418
    21

    Fr

  • IDA–ORD, 08/22/26 – 08/29/26: From $390
    22

    Sa

  • IDA–ORD, 08/23/26 – 08/30/26: From $604
    23

    Su

  • IDA–ORD, 08/24/26 – 08/31/26: From $434
    24

    Mo

  • IDA–ORD, 08/25/26 – 09/01/26: From $349
    25

    Tu

  • IDA–ORD, 08/26/26 – 09/02/26: From $482
    26

    We

  • IDA–ORD, 08/27/26 – 09/03/26: From $571
    27

    Th

  • IDA–ORD, 08/28/26 – 09/04/26: From $552
    28

    Fr

  • IDA–ORD, 08/29/26 – 09/05/26: From $390
    29

    Sa

  • IDA–ORD, 08/30/26 – 09/06/26: From $424
    30

    Su

  • IDA–ORD, 08/31/26 – 09/07/26: From $493
    31

    Mo

  • IDA–ORD, 09/01/26 – 09/08/26: From $462
    01

    Tu

    SEP

  • IDA–ORD, 09/02/26 – 09/09/26: From $549
    02

    We

  • IDA–ORD, 09/03/26 – 09/10/26: From $598
    03

    Th

  • IDA–ORD, 09/04/26 – 09/11/26: From $398
    04

    Fr

  • IDA–ORD, 09/05/26 – 09/12/26: From $370
    05

    Sa

  • IDA–ORD, 09/06/26 – 09/13/26: From $479
    06

    Su

  • IDA–ORD: cmp-view-offers-disclaimer. Find Offers
    07

    Mo

  • IDA–ORD: cmp-view-offers-disclaimer. Find Offers
    08

    Tu

  • IDA–ORD, 09/09/26 – 09/16/26: From $483
    09

    We

    • range$349-$2,540

    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 Idaho Falls to Chicago flights

    $
    keyboard_arrow_down

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $281Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $281Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $281Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $281Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $310Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $310Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $310Fare subject to changes
    Updated: 2 hours ago

    Idaho Falls (IDA)to

    Chicago (ORD)
    10/22/26 - 10/29/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 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 Idaho Falls to Chicago

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