Chicago (ORD) to Lisbon (LIS) flight deal in economy from $720
$1,021 USD
-29%$720 USD
Verified 15 days agoDecember 2026
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Fair Availability
20% of dates checked are available within 10% of the lowest price
Sunday, December 13th, 2026
6 round-trip options
Returning
Fri, Dec 18, 2026•5 Day Trip
$763 USD
Returning
Sat, Dec 19, 2026•6 Day Trip
$1,098 USD
Returning
Mon, Dec 21, 2026•8 Day Trip
$813 USD
Returning
Thu, Dec 24, 2026•11 Day Trip
$781 USD
Returning
Fri, Dec 25, 2026•12 Day Trip
$781 USD
Returning
Sun, Dec 27, 2026•14 Day Trip
$916 USD