Porto (OPO) to San Francisco (SFO) flight deal in economy from $669

Wednesday, October 14th, 2026

9 round-trip options

Returning
Mon, Oct 19, 20265 Day Trip
$852 USD
Returning
Tue, Oct 20, 20266 Day Trip
$852 USD
Returning
Wed, Oct 21, 20267 Day Trip
$852 USD
Returning
Thu, Oct 22, 20268 Day Trip
$855 USD
Returning
Fri, Oct 23, 20269 Day Trip
$690 USD
Returning
Sat, Oct 24, 202610 Day Trip
$698 USD
Returning
Sun, Oct 25, 202611 Day Trip
$734 USD
Returning
Mon, Oct 26, 202612 Day Trip
$732 USD
Returning
Tue, Oct 27, 202613 Day Trip
$702 USD