Flights from Great Falls to Chicago from $ 500*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Great Falls (GTF) to Chicago (ORD)

Mar 2026
From$ 607*
Viewed: 2 hours ago
RoundTrip|Economy
Apr 2026
No result for this month
May 2026
No result for this month
$ 607
Displaying fares for March-2026
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    • Range$ 607

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Great Falls (GTF) to Chicago (ORD) flights

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    More United deals on Great Falls (GTF) to Chicago (ORD) flights
    From
    To
    Fare Type
    Dates
    Price
    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		03/27/26 - 03/29/26

    from

    $ 607

    Viewed: 2 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		07/16/26 - 07/22/26

    from

    $ 648

    Viewed: 4 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		07/16/26 - 07/22/26

    from

    $ 765

    Viewed: 4 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		03/27/26 - 03/29/26

    from

    $ 924

    Viewed: 2 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		06/13/26 - 06/19/26

    from

    $ 500

    Viewed: 16 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		06/12/26 - 06/19/26

    from

    $ 559

    Viewed: 16 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		06/13/26 - 06/19/26

    from

    $ 728

    Viewed: 16 hours ago

    Great Falls (GTF)Chicago (ORD)Roundtrip
    |
    Economy    		06/12/26 - 06/19/26

    from

    $ 762

    Viewed: 16 hours ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

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