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

Sunday, December 20th, 2026

6 round-trip options

Returning
Fri, Dec 25, 20265 Day Trip
$892 USD
Returning
Sat, Dec 26, 20266 Day Trip
$835 USD
Returning
Sun, Dec 27, 20267 Day Trip
$832 USD
Returning
Tue, Dec 29, 20269 Day Trip
$800 USD
Returning
Thu, Dec 31, 202611 Day Trip
$800 USD
Returning
Sat, Jan 2, 202713 Day Trip
$811 USD