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

Thursday, July 16th, 2026

7 round-trip options

Returning
Tue, Jul 21, 20265 Day Trip
$1,107 USD
Returning
Thu, Jul 23, 20267 Day Trip
$1,107 USD
Returning
Fri, Jul 24, 20268 Day Trip
$1,104 USD
Returning
Sat, Jul 25, 20269 Day Trip
$1,184 USD
Returning
Sun, Jul 26, 202610 Day Trip
$1,175 USD
Returning
Wed, Jul 29, 202613 Day Trip
$1,114 USD
Returning
Thu, Jul 30, 202614 Day Trip
$1,176 USD