What is the cheapest flight from Porto to Chicago O'Hare Intl Airport?

In the last 3 days, the lowest price for a flight from Porto to Chicago O'Hare Intl Airport was $432 for a one-way ticket and $836 for a round-trip. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between Porto and Chicago?

Yes Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Porto to Chicago?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Porto to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to Chicago. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Chicago?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Porto is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Porto to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Porto with another airline. Booking your flights between Porto and ORD can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Chicago?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

What is the cheapest layover airport when flying from Porto to Chicago?

Flights via Madrid (MAD) offer the most affordable fares, with an average round-trip price of $800.

What is the most popular layover airport when flying from Porto to Chicago?

Lisbon (LIS) is the top choice – 57% of KAYAK users who clicked on 1-stop flights from Porto to Chicago picked an itinerary connecting there.

Which layover airport has the quickest connection when flying from Porto to Chicago?

If you prefer a quick connection, Madrid (MAD) often has the shortest layovers from Porto to Chicago, with an average of 2h 06m .

Which layover airport offers the shortest total travel time from Porto to Chicago?

Consider flying via Lisbon (LIS) for the shortest journey. The average one-way travel time for flights connecting there is 12h 14m .

$432 CHEAP FLIGHTS from Porto to Chicago (OPO - ORD)

OPO - ORD

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Cheapest round-trip

$836

Multiple Airlines

Sat 9/5Sun 9/13

OPO - ORD • 2 stops

Cheapest one-way

$432

Typical prices: $596-$808

Multiple Airlines

Wed 6/3

OPO - ORD • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Porto and Chicago. You'll need at least 1 connection.

Insights

Top layover airports

Madrid (MAD)

Cheapest • Avg $800 (round-trip)

Lisbon (LIS)

Shortest trip • 12h 14m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Chicago!

Flight Deals

Cheap Flights from Porto to Chicago (OPO-ORD)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Porto to Chicago

Sat, Sep 5 - Sun, Sep 13

1:55 pm - 5:50 pm

OPO

ORD

33h 55m

2 stops

9:00 pm - 10:00 pm

ORD

OPO

19h 00m

1 stop

$836Multiple Airlines

Fri, Jun 5 - Thu, Jun 11

8:25 am - 10:05 pm

OPO

ORD

19h 40m

2 stops

7:25 am - 6:45 am

ORD

OPO

17h 20m

2 stops

$847Multiple Airlines

Tue, Jun 9 - Wed, Jul 15

10:40 am - 9:40 am

OPO

ORD

29h 00m

1 stop

8:10 pm - 3:45 pm

ORD

OPO

37h 35m

1 stop

$857Turkish Airlines

Thu, Jun 11 - Sun, Jun 14

7:00 am - 7:55 pm

OPO

ORD

18h 55m

2 stops

11:05 am - 8:50 am

ORD

OPO

15h 45m

2 stops

$859Multiple Airlines

Thu, Oct 8 - Sun, Oct 11

4:40 pm - 6:15 pm

OPO

ORD

31h 35m

1 stop

8:10 pm - 3:50 pm

ORD

OPO

37h 40m

1 stop

$862Turkish Airlines

Sun, Jun 21 - Mon, Jul 6

4:40 pm - 9:40 am

OPO

ORD

23h 00m

1 stop

8:10 pm - 9:45 am

ORD

OPO

31h 35m

1 stop

$864Turkish Airlines

Wed, Jun 17 - Wed, Jun 24

5:00 am - 9:25 pm

OPO

ORD

22h 25m

3 stops

7:25 pm - 9:20 pm

ORD

OPO

19h 55m

3 stops

$870Multiple Airlines

Wed, Oct 7 - Sun, Oct 11

9:40 pm - 7:15 pm

OPO

ORD

51h 35m

2 stops

4:55 pm - 9:25 am

ORD

OPO

34h 30m

1 stop

$871Multiple Airlines

Thu, Jun 11 - Sun, Jun 14

7:00 am - 7:55 pm

OPO

ORD

18h 55m

2 stops

11:05 am - 12:40 am

ORD

OPO

31h 35m

3 stops

$875Multiple Airlines

Sun, Jun 21 - Mon, Jul 6

4:40 pm - 9:40 am

OPO

ORD

23h 00m

1 stop

8:10 pm - 9:45 am

ORD

OPO

31h 35m

1 stop

$878Turkish Airlines

Booking Insights

KAYAK's insights & trends for Porto to Chicago flights

Get data-powered insights and trends into flights from Porto to Chicago to help you find the cheapest flights, the best time to fly and much more.

Airlines

Layovers

Which airlines provide the cheapest flights from Porto to Chicago?

In the past 3 days, the cheapest round-trip tickets from Porto to Chicago were found on Turkish Airlines ($857) and LOT ($899).

Find deals

Cheapest flight	$432

Flight from Porto to Chicago

When to book flights from Porto to Chicago

Are your dates flexible? Find out the best times to travel from Porto to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Porto to Chicago O'Hare Intl Airport?
In the last 3 days, the lowest price for a flight from Porto to Chicago O'Hare Intl Airport was $432 for a one-way ticket and $836 for a round-trip.
Do I need a passport to fly between Porto and Chicago?
Yes
Which aircraft models fly most regularly from Porto to Chicago?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from Porto to Chicago?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to Chicago.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Chicago?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Porto is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Porto to Chicago?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Porto with another airline. Booking your flights between Porto and ORD can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Chicago?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Porto to Chicago

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Porto (OPO)

O'Hare Intl (ORD)

OPO - ORD

$432 Find Cheap Flights from Porto to Chicago

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

Everything you should know

Cheap Flights from Porto to Chicago (OPO-ORD)

Recent round-trip flight deals from Porto to Chicago

Recent one-way flight deals from Porto to Chicago

Recent last minute flight deals from Porto to Chicago

KAYAK's insights & trends for Porto to Chicago flights

Get data-powered insights and trends into flights from Porto to Chicago to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Porto to Chicago?

In the past 3 days, the cheapest round-trip tickets from Porto to Chicago were found on Turkish Airlines ($857) and LOT ($899).

What is the most popular layover airport when flying from Porto to Chicago?

Lisbon (LIS) is the top choice – 57% of KAYAK users who clicked on 1-stop flights from Porto to Chicago picked an itinerary connecting there.

What is the cheapest layover airport when flying from Porto to Chicago?

Flights via Madrid (MAD) offer the most affordable fares, with an average round-trip price of $800.

Which layover airport offers the shortest total travel time from Porto to Chicago?

Consider flying via Lisbon (LIS) for the shortest journey. The average one-way travel time for flights connecting there is 12h 14m.

Which layover airport has the quickest connection when flying from Porto to Chicago?

If you prefer a quick connection, Madrid (MAD) often has the shortest layovers from Porto to Chicago, with an average of 2h 06m.

Good to know

When to book flights from Porto to Chicago

FAQs for booking Porto to Chicago flights

What is the cheapest flight from Porto to Chicago O'Hare Intl Airport?

In the last 3 days, the lowest price for a flight from Porto to Chicago O'Hare Intl Airport was $432 for a one-way ticket and $836 for a round-trip.

Do I need a passport to fly between Porto and Chicago?

Yes

Which aircraft models fly most regularly from Porto to Chicago?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Porto to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to Chicago.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Chicago?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Porto is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Porto to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Porto with another airline. Booking your flights between Porto and ORD can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Chicago?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Porto to Chicago

Information on your arrival and departure airports

Cabin class types available on flights to Chicago

Complete your trip to Chicago with a hotel stay or car rental

Find direct flights to and from Porto and Chicago

Flights to other popular destinations

Flights from domestic origins to Chicago

Choose which airport to fly into in Chicago

Find deals for your return flight