Porto (OPO) to Chicago (ORD) flight deal in economy from $615

Sunday, November 29th, 2026

7 round-trip options

Returning
Fri, Dec 4, 20265 Day Trip
$1,065 USD
Returning
Sat, Dec 5, 20266 Day Trip
$972 USD
Returning
Sun, Dec 6, 20267 Day Trip
$806 USD
Returning
Mon, Dec 7, 20268 Day Trip
$806 USD
Returning
Wed, Dec 9, 202610 Day Trip
$806 USD
Returning
Thu, Dec 10, 202611 Day Trip
$960 USD
Returning
Sat, Dec 12, 202613 Day Trip
$960 USD