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

Saturday, January 2nd, 2027

4 round-trip options

Returning
Fri, Jan 8, 20276 Day Trip
$1,132 USD
Returning
Sat, Jan 9, 20277 Day Trip
$1,125 USD
Returning
Sun, Jan 10, 20278 Day Trip
$1,138 USD
Returning
Mon, Jan 11, 20279 Day Trip
$1,138 USD