Flights from Chicago to Nantucket from $ 314*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Chicago (ORD) to Nantucket (ACK)

May 2026
From$ 503*
Viewed: 10 hours ago
RoundTrip|Economy
Jun 2026
From$ 314*
Viewed: 10 hours ago
RoundTrip|Economy
Jul 2026
From$ 478*
Viewed: 10 hours ago
RoundTrip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $ 440
cmp-daily-histogram-bars-legend-max-price-aria-label $ 1.2K
Displaying fares for May-2026
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    • Range$ 440-$ 1,234

    *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 Chicago (ORD) to Nantucket (ACK) flights

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    More United deals on Chicago (ORD) to Nantucket (ACK) flights
    From
    To
    Fare Type
    Dates
    Price
    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		08/16/26 - 08/19/26

    from

    $ 417

    Viewed: 40 minutes ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		06/29/26 - 07/03/26

    from

    $ 314

    Viewed: 10 hours ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		08/25/26 - 08/29/26

    from

    $ 438

    Viewed: 10 hours ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		06/13/26 - 06/20/26

    from

    $ 440

    Viewed: 10 hours ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		06/21/26 - 06/28/26

    from

    $ 443

    Viewed: 10 hours ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		08/12/26 - 08/19/26

    from

    $ 443

    Viewed: 10 hours ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		08/15/26 - 08/19/26

    from

    $ 445

    Viewed: 10 hours ago

    Chicago (ORD)Nantucket (ACK)Roundtrip
    |
    Economy    		09/02/26 - 09/05/26

    from

    $ 460

    Viewed: 22 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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