$650 Cheap United flights Chicago (ORD) to Porto (OPO)

$650 Cheap United flights Chicago (ORD) to Porto (OPO)

Prices were available within the past 7 days and start at $650 for one-way flights and $618 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 27 - Thu, Sep 4

ORD

Chicago

OPO

Porto

$618 Roundtrip, found 17 hours ago

$618

Roundtrip

found 17 hours ago

Select United flight, departing Wed, Aug 27 from Chicago to Porto, returning Thu, Sep 4, priced at $618 found 17 hours ago

Mon, Aug 25 - Tue, Sep 2

ORD

Chicago

OPO

Porto

$621 Roundtrip, found 17 hours ago

$621

Roundtrip

found 17 hours ago

Select United flight, departing Mon, Aug 25 from Chicago to Porto, returning Tue, Sep 2, priced at $621 found 17 hours ago

Tue, Aug 26 - Thu, Sep 4

ORD

Chicago

OPO

Porto

$623 Roundtrip, found 17 hours ago

$623

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Aug 26 from Chicago to Porto, returning Thu, Sep 4, priced at $623 found 17 hours ago

Wed, Aug 27 - Fri, Sep 5

ORD

Chicago

OPO

Porto

$626 Roundtrip, found 17 hours ago

$626

Roundtrip

found 17 hours ago

Select United flight, departing Wed, Aug 27 from Chicago to Porto, returning Fri, Sep 5, priced at $626 found 17 hours ago

Tue, Aug 26 - Fri, Sep 5

ORD

Chicago

OPO

Porto

$630 Roundtrip, found 17 hours ago

$630

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Aug 26 from Chicago to Porto, returning Fri, Sep 5, priced at $630 found 17 hours ago

Wed, Aug 27 - Fri, Sep 5

ORD

Chicago

OPO

Porto

$631 Roundtrip, found 17 hours ago

$631

Roundtrip

found 17 hours ago

Select United flight, departing Wed, Aug 27 from Chicago to Porto, returning Fri, Sep 5, priced at $631 found 17 hours ago