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

Tuesday, September 29th, 2026

4 round-trip options

Returning
Tue, Oct 6, 20267 Day Trip
$676 USD
Returning
Sun, Oct 11, 202612 Day Trip
$781 USD
Returning
Mon, Oct 12, 202613 Day Trip
$760 USD
Returning
Tue, Oct 13, 202614 Day Trip
$652 USD