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

Friday, July 31st, 2026

7 round-trip options

Returning
Wed, Aug 5, 20265 Day Trip
$1,195 USD
Returning
Fri, Aug 7, 20267 Day Trip
$1,272 USD
Returning
Sat, Aug 8, 20268 Day Trip
$1,285 USD
Returning
Sun, Aug 9, 20269 Day Trip
$1,510 USD
Returning
Mon, Aug 10, 202610 Day Trip
$1,277 USD
Returning
Thu, Aug 13, 202613 Day Trip
$1,251 USD
Returning
Fri, Aug 14, 202614 Day Trip
$1,345 USD