Porto (OPO) to Chicago (ORD) flight deal in economy from $628

Air CanadaACAir CanadaLufthansaLHLufthansaSwiss International Air LinesLXSwiss International Air LinesAustrian AirlinesOSAustrian AirlinesUnited AirlinesUAUnited Airlines
Round Trip•Economy
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
United StatesORD

O'Hare International Airport

Chicago, United States
$844 USD
-26%$628 USD
Verified about 11 hours ago
Fair Availability
33% of dates checked are available within 10% of the lowest price

Saturday, November 21st, 2026

4 round-trip options

Returning
Thu, Nov 26, 2026•5 Day Trip
$634 USD
Google Flights
Returning
Sat, Nov 28, 2026•7 Day Trip
$629 USD
Google Flights
Returning
Sun, Nov 29, 2026•8 Day Trip
$629 USD
Google Flights
Returning
Tue, Dec 1, 2026•10 Day Trip
$629 USD
Google Flights