Porto (OPO) to Boston (BOS) flight deal in economy from $516

Tuesday, December 15th, 2026

6 round-trip options

Returning
Sun, Dec 20, 20265 Day Trip
$955 USD
Returning
Mon, Dec 21, 20266 Day Trip
$881 USD
Returning
Tue, Dec 22, 20267 Day Trip
$955 USD
Returning
Thu, Dec 24, 20269 Day Trip
$761 USD
Returning
Sat, Dec 26, 202611 Day Trip
$675 USD
Returning
Mon, Dec 28, 202613 Day Trip
$675 USD