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
Wednesday, November 25th, 2026
2 round-trip options
Returning
Thu, Dec 3, 2026•8 Day Trip
$747 USD
Returning
Wed, Dec 9, 2026•14 Day Trip
$544 USD