Lisbon (LIS) to Boston (BOS) flight deal in economy from $512
$738 USD
-31%$512 USD
Verified 1 day agoNovember 2026
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Fair Availability
24% of dates checked are available within 10% of the lowest price
Saturday, November 21st, 2026
2 round-trip options
Returning
Sun, Nov 29, 2026•8 Day Trip
$652 USD
Returning
Sat, Dec 5, 2026•14 Day Trip
$544 USD