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

Tuesday, September 15th, 2026

4 round-trip options

Returning
Sun, Sep 20, 20265 Day Trip
$914 USD
Returning
Mon, Sep 21, 20266 Day Trip
$911 USD
Returning
Sun, Sep 27, 202612 Day Trip
$776 USD
Returning
Mon, Sep 28, 202613 Day Trip
$911 USD