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

Wednesday, September 9th, 2026

4 round-trip options

Returning
Wed, Sep 16, 20267 Day Trip
$770 USD
Returning
Mon, Sep 21, 202612 Day Trip
$765 USD
Returning
Tue, Sep 22, 202613 Day Trip
$770 USD
Returning
Wed, Sep 23, 202614 Day Trip
$782 USD