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

Friday, September 25th, 2026

4 round-trip options

Returning
Fri, Oct 2, 20267 Day Trip
$781 USD
Returning
Wed, Oct 7, 202612 Day Trip
$781 USD
Returning
Thu, Oct 8, 202613 Day Trip
$781 USD
Returning
Fri, Oct 9, 202614 Day Trip
$781 USD