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

Wednesday, November 18th, 2026

6 round-trip options

Returning
Mon, Nov 23, 20265 Day Trip
$743 USD
Returning
Wed, Nov 25, 20267 Day Trip
$741 USD
Returning
Thu, Nov 26, 20268 Day Trip
$741 USD
Returning
Sun, Nov 29, 202611 Day Trip
$820 USD
Returning
Tue, Dec 1, 202613 Day Trip
$759 USD
Returning
Wed, Dec 2, 202614 Day Trip
$743 USD