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
Monday, December 21st, 2026
6 round-trip options
Returning
Sat, Dec 26, 2026•5 Day Trip
$1,112 USD
Returning
Sun, Dec 27, 2026•6 Day Trip
$1,120 USD
Returning
Tue, Dec 29, 2026•8 Day Trip
$1,136 USD
Returning
Fri, Jan 1, 2027•11 Day Trip
$1,325 USD
Returning
Sat, Jan 2, 2027•12 Day Trip
$1,825 USD
Returning
Mon, Jan 4, 2027•14 Day Trip
$1,412 USD