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

Sunday, January 24th, 2027

4 round-trip options

Returning
Sun, Jan 31, 20277 Day Trip
$793 USD
Returning
Tue, Feb 2, 20279 Day Trip
$743 USD
Returning
Wed, Feb 3, 202710 Day Trip
$743 USD
Returning
Sat, Feb 6, 202713 Day Trip
$795 USD