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
Monday, November 23rd, 2026
2 round-trip options
Returning
Tue, Dec 1, 2026•8 Day Trip
$544 USD
Returning
Mon, Dec 7, 2026•14 Day Trip
$544 USD