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Flights from Chicago to Porto from USD 666
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1 Passenger, Economy
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Flights from Chicago to Porto
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Best Flight Deals from Chicago to Porto
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USD
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Chicago (ORD) | Porto (OPO) | Round trip | Economy | 04/10/2026 - 25/12/2026 | From USD 691 Viewed 13 hours ago | |
| Chicago (ORD) | Porto (OPO) | Round trip | Economy | 27/09/2026 - 03/10/2026 | From USD 825 Viewed 14 hours ago | |
| Chicago (ORD) | Porto (OPO) | Round trip | Economy | 01/11/2026 - 15/11/2026 | From USD 666 Viewed 1 day ago | |
| Chicago (ORD) | Porto (OPO) | Round trip | Economy | 10/10/2026 - 18/12/2026 | From USD 729 Viewed 1 day ago | |
| Chicago (ORD) | Porto (OPO) | Round trip | Economy | 30/12/2026 - 08/01/2027 | From USD 849 Viewed 1 day 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
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flight_land
USD
Chicago (ORD)to
Porto (OPO)
04/10/2026 - 25/12/2026
Round trip
Business
From
USD 4,906
Viewed 13 hours ago
Chicago (ORD)to
Porto (OPO)
10/10/2026 - 18/12/2026
Round trip
Business
From
USD 4,300
Viewed 1 day 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.