Lisbon (LIS) to Boston (BOS) flight deal in economy from $512
$738 USD
-31%$512 USD
Verified about 17 hours agoJuly 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
24% of dates checked are available within 10% of the lowest price
Friday, July 31st, 2026
5 round-trip options
Returning
Wed, Aug 5, 2026•5 Day Trip
$1,362 USD
Returning
Fri, Aug 7, 2026•7 Day Trip
$1,619 USD
Returning
Sun, Aug 9, 2026•9 Day Trip
$1,362 USD
Returning
Mon, Aug 10, 2026•10 Day Trip
$1,362 USD
Returning
Wed, Aug 12, 2026•12 Day Trip
$1,362 USD
