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

Monday, August 3rd, 2026

10 round-trip options

Returning
Sat, Aug 8, 20265 Day Trip
$2,551 USD
Returning
Sun, Aug 9, 20266 Day Trip
$1,158 USD
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Mon, Aug 10, 20267 Day Trip
$1,205 USD
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Tue, Aug 11, 20268 Day Trip
$912 USD
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Wed, Aug 12, 20269 Day Trip
$912 USD
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Thu, Aug 13, 202610 Day Trip
$912 USD
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Fri, Aug 14, 202611 Day Trip
$1,137 USD
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Sat, Aug 15, 202612 Day Trip
$1,254 USD
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Sun, Aug 16, 202613 Day Trip
$1,175 USD
Returning
Mon, Aug 17, 202614 Day Trip
$1,108 USD