Porto (OPO) to Boston (BOS) flight deal in economy from $516
$790 USD
-35%$516 USD
Verified 13 days agoAugust 2026
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Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Thursday, August 20th, 2026
7 round-trip options
Returning
Tue, Aug 25, 2026•5 Day Trip
$710 USD
Returning
Thu, Aug 27, 2026•7 Day Trip
$680 USD
Returning
Fri, Aug 28, 2026•8 Day Trip
$870 USD
Returning
Sat, Aug 29, 2026•9 Day Trip
$871 USD
Returning
Mon, Aug 31, 2026•11 Day Trip
$870 USD
Returning
Tue, Sep 1, 2026•12 Day Trip
$876 USD
Returning
Wed, Sep 2, 2026•13 Day Trip
$700 USD