Lisbon (LIS) to Boston (BOS) flight deal in economy from $512
$738 USD
-31%$512 USD
Verified 1 day agoOctober 2026
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Fair Availability
24% of dates checked are available within 10% of the lowest price
Thursday, October 29th, 2026
4 round-trip options
Returning
Thu, Nov 5, 2026•7 Day Trip
$660 USD
Returning
Tue, Nov 10, 2026•12 Day Trip
$760 USD
Returning
Wed, Nov 11, 2026•13 Day Trip
$660 USD
Returning
Thu, Nov 12, 2026•14 Day Trip
$660 USD
