Flights from Chicago to Porto from USD 744

Promo Code

Flights from Chicago to Porto

Try alternate month or interact with individual days below in order to find offers.
Apr 2026
Try another month to see offers
May 2026
FromUSD 904*
Viewed 10 hours ago
Flight Type Round Trip|Economy Class
Jun 2026
FromUSD 1,074*
Viewed 1 day ago
Flight Type Round Trip|Economy Class
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    • *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

    Best Flight Deals from Chicago to Porto

    USD
    keyboard_arrow_down
    Best Flight Deals from Chicago to Porto
    From
    To
    Fare Type
    Dates
    Price
    Chicago (ORD)Porto (OPO)Round trip
    |
    Economy    		09/10/2026 - 17/10/2026

    From

    USD 744

    Viewed 1 day ago

    Chicago (ORD)Porto (OPO)Round trip
    |
    Economy    		26/08/2026 - 10/09/2026

    From

    USD 749

    Viewed 1 day ago

    Chicago (ORD)Porto (OPO)Round trip
    |
    Economy    		03/09/2026 - 17/09/2026

    From

    USD 769

    Viewed 1 day ago

    Chicago (ORD)Porto (OPO)Round trip
    |
    Economy    		06/09/2026 - 20/09/2026

    From

    USD 814

    Viewed 1 day ago

    Chicago (ORD)Porto (OPO)Round trip
    |
    Economy    		11/05/2026 - 15/05/2026

    From

    USD 904

    Viewed 10 hours ago

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

    Business Flights Deals

    USD

    Chicago (ORD)to

    Porto (OPO)
    24/05/2026 - 30/05/2026

    Round trip

    Business

    From
    USD 5,223
    Viewed 14 hours ago

    Chicago (ORD)to

    Porto (OPO)
    11/05/2026 - 15/05/2026

    Round trip

    Business

    From
    USD 5,255
    Viewed 10 hours ago

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

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