Lisbon (LIS) to Boston (BOS) flight deal in economy from $512
$738 USD
-31%$512 USD
Verified about 20 hours agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
24% of dates checked are available within 10% of the lowest price
Saturday, October 3rd, 2026
4 round-trip options
Returning
Sat, Oct 10, 2026•7 Day Trip
$770 USD
Returning
Thu, Oct 15, 2026•12 Day Trip
$787 USD
Returning
Fri, Oct 16, 2026•13 Day Trip
$798 USD
Returning
Sat, Oct 17, 2026•14 Day Trip
$787 USD