Lisbon (LIS) to Chicago (ORD) flight deal in economy from $603

American AirlinesAAAmerican Airlines
Round Trip•Economy
PortugalLIS

Portela Airport

Lisbon, Portugal
United StatesORD

O'Hare International Airport

Chicago, United States
$964 USD
-37%$603 USD
Verified about 22 hours ago
Rare Availability
5% of dates checked are available within 10% of the lowest price

Friday, September 11th, 2026

4 round-trip options

Returning
Wed, Sep 16, 2026•5 Day Trip
$911 USD
Google Flights
Returning
Thu, Sep 17, 2026•6 Day Trip
$1,034 USD
Google Flights
Returning
Wed, Sep 23, 2026•12 Day Trip
$911 USD
Google Flights
Returning
Thu, Sep 24, 2026•13 Day Trip
$914 USD
Google Flights