American AirlinesAAAmerican Airlines
One Way•Economy
United StatesORD

O'Hare International Airport

Chicago, United States
PortugalLIS

Portela Airport

Lisbon, Portugal
$917 USD
-60%$371 USD
Verified Dec 1, 2025 at 4:09 AM
Limited Availability
18% of dates checked are available within 10% of the lowest price

Monday, December 29th, 2025

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