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

Monday, November 2nd, 2026

4 round-trip options

Returning
Sat, Nov 7, 2026•5 Day Trip
$977 USD
Google Flights
Returning
Mon, Nov 9, 2026•7 Day Trip
$659 USD
Google Flights
Returning
Tue, Nov 10, 2026•8 Day Trip
$659 USD
Google Flights
Returning
Thu, Nov 12, 2026•10 Day Trip
$664 USD
Google Flights