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
Friday, October 9th, 2026
4 round-trip options
Returning
Fri, Oct 16, 2026•7 Day Trip
$765 USD
Returning
Wed, Oct 21, 2026•12 Day Trip
$760 USD
Returning
Thu, Oct 22, 2026•13 Day Trip
$652 USD
Returning
Fri, Oct 23, 2026•14 Day Trip
$770 USD