$1,432 Cheap United flights Porto (OPO) to San Francisco (SFO)

$1,432 Cheap United flights Porto (OPO) to San Francisco (SFO)

Prices were available within the past 7 days and start at $1,432 for one-way flights and $805 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 1 - Wed, Sep 30

OPO

Porto

SFO

San Francisco

$805 Roundtrip, found 2 days ago

$805

Roundtrip

found 2 days ago

Select United flight, departing Tue, Sep 1 from Porto to San Francisco, returning Wed, Sep 30, priced at $805 found 2 days ago

Tue, Sep 1 - Wed, Sep 30

OPO

Porto

SFO

San Francisco

$808 Roundtrip, found 2 days ago

$808

Roundtrip

found 2 days ago

Select United flight, departing Tue, Sep 1 from Porto to San Francisco, returning Wed, Sep 30, priced at $808 found 2 days ago

Tue, Sep 1 - Wed, Sep 30

OPO

Porto

SFO

San Francisco

$824 Roundtrip, found 2 days ago

$824

Roundtrip

found 2 days ago

Select United flight, departing Tue, Sep 1 from Porto to San Francisco, returning Wed, Sep 30, priced at $824 found 2 days ago

Tue, Sep 1 - Wed, Sep 30

OPO

Porto

SFO

San Francisco

$828 Roundtrip, found 2 days ago

$828

Roundtrip

found 2 days ago

Select United flight, departing Tue, Sep 1 from Porto to San Francisco, returning Wed, Sep 30, priced at $828 found 2 days ago

Tue, Sep 1 - Wed, Sep 30

OPO

Porto

SFO

San Francisco

$848 Roundtrip, found 2 days ago

$848

Roundtrip

found 2 days ago

Select United flight, departing Tue, Sep 1 from Porto to San Francisco, returning Wed, Sep 30, priced at $848 found 2 days ago