Porto (OPO) to Boston (BOS) flight deal in economy from $516
$790 USD
-35%$516 USD
Verified 13 days agoJuly 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Wednesday, July 29th, 2026
7 round-trip options
Returning
Mon, Aug 3, 2026•5 Day Trip
$756 USD
Returning
Wed, Aug 5, 2026•7 Day Trip
$706 USD
Returning
Thu, Aug 6, 2026•8 Day Trip
$689 USD
Returning
Fri, Aug 7, 2026•9 Day Trip
$1,000 USD
Returning
Sun, Aug 9, 2026•11 Day Trip
$617 USD
Returning
Mon, Aug 10, 2026•12 Day Trip
$727 USD
Returning
Tue, Aug 11, 2026•13 Day Trip
$670 USD