Philadelphia (PHL) to Lisbon (LIS) flight deal in economy from $741

Sunday, September 6th, 2026

4 round-trip options

Returning
Fri, Sep 11, 20265 Day Trip
$1,466 USD
Returning
Sun, Sep 13, 20267 Day Trip
$1,406 USD
Returning
Mon, Sep 14, 20268 Day Trip
$1,406 USD
Returning
Tue, Sep 15, 20269 Day Trip
$1,338 USD