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

Wednesday, December 9th, 2026

6 round-trip options

Returning
Mon, Dec 14, 20265 Day Trip
$675 USD
Returning
Tue, Dec 15, 20266 Day Trip
$785 USD
Returning
Wed, Dec 16, 20267 Day Trip
$801 USD
Returning
Fri, Dec 18, 20269 Day Trip
$1,013 USD
Returning
Sun, Dec 20, 202611 Day Trip
$955 USD
Returning
Tue, Dec 22, 202613 Day Trip
$956 USD