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

Monday, October 12th, 2026

4 round-trip options

Returning
Mon, Oct 19, 20267 Day Trip
$766 USD
Returning
Sat, Oct 24, 202612 Day Trip
$777 USD
Returning
Sun, Oct 25, 202613 Day Trip
$786 USD
Returning
Mon, Oct 26, 202614 Day Trip
$777 USD