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

Friday, January 1st, 2027

4 round-trip options

Returning
Fri, Jan 8, 20277 Day Trip
$811 USD
Returning
Sun, Jan 10, 20279 Day Trip
$902 USD
Returning
Mon, Jan 11, 202710 Day Trip
$813 USD
Returning
Thu, Jan 14, 202713 Day Trip
$793 USD