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

Wednesday, September 2nd, 2026

4 round-trip options

Returning
Wed, Sep 9, 20267 Day Trip
$769 USD
Returning
Mon, Sep 14, 202612 Day Trip
$760 USD
Returning
Tue, Sep 15, 202613 Day Trip
$781 USD
Returning
Wed, Sep 16, 202614 Day Trip
$781 USD