Chicago (ORD) to Lisbon (LIS) flight deal in economy from $720
$1,021 USD
-29%$720 USD
Verified 14 days agoSeptember 2026
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Fair Availability
20% of dates checked are available within 10% of the lowest price
Wednesday, September 9th, 2026
5 round-trip options
Returning
Tue, Sep 15, 2026•6 Day Trip
$961 USD
Returning
Sat, Sep 19, 2026•10 Day Trip
$1,047 USD
Returning
Sun, Sep 20, 2026•11 Day Trip
$1,090 USD
Returning
Mon, Sep 21, 2026•12 Day Trip
$1,039 USD
Returning
Tue, Sep 22, 2026•13 Day Trip
$961 USD