Lisbon (LIS) to Boston (BOS) flight deal in economy from $512

Saturday, September 12th, 2026

4 round-trip options

Returning
Sat, Sep 19, 20267 Day Trip
$798 USD
Returning
Thu, Sep 24, 202612 Day Trip
$798 USD
Returning
Fri, Sep 25, 202613 Day Trip
$798 USD
Returning
Sat, Sep 26, 202614 Day Trip
$787 USD