San Francisco (SFO) to Porto (OPO) flight deal in economy from $728

Thursday, July 30th, 2026

7 round-trip options

Returning
Tue, Aug 4, 20265 Day Trip
$1,221 USD
Returning
Thu, Aug 6, 20267 Day Trip
$1,182 USD
Returning
Fri, Aug 7, 20268 Day Trip
$1,298 USD
Returning
Sat, Aug 8, 20269 Day Trip
$1,329 USD
Returning
Sun, Aug 9, 202610 Day Trip
$1,583 USD
Returning
Wed, Aug 12, 202613 Day Trip
$1,307 USD
Returning
Thu, Aug 13, 202614 Day Trip
$1,374 USD