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
Monday, October 19th, 2026
4 round-trip options
Returning
Mon, Oct 26, 2026•7 Day Trip
$769 USD
Returning
Sat, Oct 31, 2026•12 Day Trip
$777 USD
Returning
Sun, Nov 1, 2026•13 Day Trip
$787 USD
Returning
Mon, Nov 2, 2026•14 Day Trip
$711 USD