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

Thursday, July 23rd, 2026

7 round-trip options

Returning
Tue, Jul 28, 20265 Day Trip
$1,120 USD
Returning
Thu, Jul 30, 20267 Day Trip
$1,158 USD
Returning
Fri, Jul 31, 20268 Day Trip
$1,419 USD
Returning
Sat, Aug 1, 20269 Day Trip
$1,194 USD
Returning
Sun, Aug 2, 202610 Day Trip
$1,276 USD
Returning
Wed, Aug 5, 202613 Day Trip
$1,191 USD
Returning
Thu, Aug 6, 202614 Day Trip
$1,124 USD