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

Monday, July 20th, 2026

7 round-trip options

Returning
Sat, Jul 25, 20265 Day Trip
$1,030 USD
Returning
Mon, Jul 27, 20267 Day Trip
$955 USD
Returning
Tue, Jul 28, 20268 Day Trip
$898 USD
Returning
Wed, Jul 29, 20269 Day Trip
$898 USD
Returning
Fri, Jul 31, 202611 Day Trip
$1,086 USD
Returning
Sat, Aug 1, 202612 Day Trip
$898 USD
Returning
Sun, Aug 2, 202613 Day Trip
$871 USD