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
Wednesday, October 21st, 2026
4 round-trip options
Returning
Wed, Oct 28, 2026•7 Day Trip
$752 USD
Returning
Mon, Nov 2, 2026•12 Day Trip
$760 USD
Returning
Tue, Nov 3, 2026•13 Day Trip
$753 USD
Returning
Wed, Nov 4, 2026•14 Day Trip
$760 USD