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

Sunday, September 20th, 2026

4 round-trip options

Returning
Fri, Sep 25, 2026•5 Day Trip
$1,056 USD
Google Flights
Returning
Sat, Sep 26, 2026•6 Day Trip
$885 USD
Google Flights
Returning
Fri, Oct 2, 2026•12 Day Trip
$1,056 USD
Google Flights
Returning
Sat, Oct 3, 2026•13 Day Trip
$1,011 USD
Google Flights