$508 Cheap United flights Chicago (ORD) to Porto (OPO)

$508 Cheap United flights Chicago (ORD) to Porto (OPO)

Prices were available within the past 7 days and start at $508 for one-way flights and $504 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 8 - Wed, Jan 14

ORD

Chicago

OPO

Porto

$504 Roundtrip, found 1 day ago

$504

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 8 from Chicago to Porto, returning Wed, Jan 14, priced at $504 found 1 day ago

Thu, Jan 8 - Thu, Jan 15

ORD

Chicago

OPO

Porto

$515 Roundtrip, found 1 day ago

$515

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 8 from Chicago to Porto, returning Thu, Jan 15, priced at $515 found 1 day ago

Wed, Jan 7 - Sat, Jan 17

ORD

Chicago

OPO

Porto

$523 Roundtrip, found 1 day ago

$523

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 7 from Chicago to Porto, returning Sat, Jan 17, priced at $523 found 1 day ago

Wed, Jan 7 - Sat, Jan 17

ORD

Chicago

OPO

Porto

$524 Roundtrip, found 1 day ago

$524

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 7 from Chicago to Porto, returning Sat, Jan 17, priced at $524 found 1 day ago

Thu, Jan 8 - Sun, Jan 18

ORD

Chicago

OPO

Porto

$540 Roundtrip, found 1 day ago

$540

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 8 from Chicago to Porto, returning Sun, Jan 18, priced at $540 found 1 day ago

Wed, Jan 7 - Sat, Jan 17

ORD

Chicago

OPO

Porto

$549 Roundtrip, found 1 day ago

$549

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 7 from Chicago to Porto, returning Sat, Jan 17, priced at $549 found 1 day ago

Thu, Jan 8 - Sat, Jan 17

ORD

Chicago

OPO

Porto

$559 Roundtrip, found 1 day ago

$559

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 8 from Chicago to Porto, returning Sat, Jan 17, priced at $559 found 1 day ago

Sat, Jan 10 - Mon, Jan 19

ORD

Chicago

OPO

Porto

$580 Roundtrip, found 1 day ago

$580

Roundtrip

found 1 day ago

Select United flight, departing Sat, Jan 10 from Chicago to Porto, returning Mon, Jan 19, priced at $580 found 1 day ago