Lisbon (LIS) to Boston (BOS) flight deal in economy from $512
$738 USD
-31%$512 USD
Verified about 23 hours agoOctober 2026
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Fair Availability
24% of dates checked are available within 10% of the lowest price
Thursday, October 22nd, 2026
4 round-trip options
Returning
Thu, Oct 29, 2026•7 Day Trip
$652 USD
Returning
Tue, Nov 3, 2026•12 Day Trip
$753 USD
Returning
Wed, Nov 4, 2026•13 Day Trip
$544 USD
Returning
Thu, Nov 5, 2026•14 Day Trip
$563 USD