San Francisco (SFO) to Porto (OPO) flight deal in economy from $786

Friday, July 31st, 2026

10 round-trip options

Returning
Wed, Aug 5, 20265 Day Trip
$972 USD
Returning
Thu, Aug 6, 20266 Day Trip
$972 USD
Returning
Fri, Aug 7, 20267 Day Trip
$1,105 USD
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Sat, Aug 8, 20268 Day Trip
$1,127 USD
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Sun, Aug 9, 20269 Day Trip
$1,218 USD
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Mon, Aug 10, 202610 Day Trip
$1,238 USD
Returning
Tue, Aug 11, 202611 Day Trip
$972 USD
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Wed, Aug 12, 202612 Day Trip
$972 USD
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Thu, Aug 13, 202613 Day Trip
$972 USD
Returning
Fri, Aug 14, 202614 Day Trip
$1,199 USD