Lisbon (LIS) to Boston (BOS) flight deal in economy from $512
$738 USD
-31%$512 USD
Verified about 23 hours agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
24% of dates checked are available within 10% of the lowest price
Monday, October 26th, 2026
4 round-trip options
Returning
Mon, Nov 2, 2026•7 Day Trip
$712 USD
Returning
Sat, Nov 7, 2026•12 Day Trip
$712 USD
Returning
Sun, Nov 8, 2026•13 Day Trip
$667 USD
Returning
Mon, Nov 9, 2026•14 Day Trip
$660 USD