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Chicago (ORD) to Porto (OPO) flight deal in economy from $345
AA
American Airlines
AY
Finnair
BA
British Airways
IB
Iberia Airlines
One Way
•
Economy
ORD
O'Hare International Airport
Chicago, United States
OPO
Francisco Sá Carneiro Airport
Porto, Portugal
$535 USD
-36%
$345
USD
Verified 1 day ago
September 2026
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Limited Availability
17% of dates checked are available within 10% of the lowest price
Saturday, September 5th, 2026
No flight details available for this date.
ORD
OPOORDOPOORDOPO