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

Thursday, September 24th, 2026

4 round-trip options

Returning
Thu, Oct 1, 20267 Day Trip
$777 USD
Returning
Tue, Oct 6, 202612 Day Trip
$652 USD
Returning
Wed, Oct 7, 202613 Day Trip
$781 USD
Returning
Thu, Oct 8, 202614 Day Trip
$781 USD