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

Monday, September 21st, 2026

4 round-trip options

Returning
Sat, Sep 26, 20265 Day Trip
$992 USD
Returning
Sun, Sep 27, 20266 Day Trip
$815 USD
Returning
Sat, Oct 3, 202612 Day Trip
$787 USD
Returning
Sun, Oct 4, 202613 Day Trip
$938 USD