How long does it take to fly to Chicago O'Hare Intl Airport?

On average, it takes 9h 25m to fly from Portugal to Chicago O'Hare Intl Airport if you fly out of Lisbon (the most popular airport in Portugal) and into Chicago O'Hare Intl Airport (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Porto and into Chicago O'Hare Intl Airport, then the flight time is around 11h 40m.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Portugal to Chicago O'Hare Intl?

TAP AIR PORTUGAL is the most popular carrier operating from Portugal to Chicago O'Hare Intl

Which airline has the best punctuality record on Portugal to Chicago flights?

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

How often are flights from Portugal to Chicago delayed?

Historically, on average around 21% of flights between Portugal and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 128 minutes.

What is the most punctual flight time for Portugal to Chicago flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

How many flights depart from Portugal to Chicago O'Hare Intl Airport on average per week?

As of June 2026, there are 4 flights per week flying from Portugal to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Wed, with 50% of flights taking off on this day.

When did momondo last update prices for flights from Portugal to Chicago O'Hare Intl Airport?

Prices for flights from Portugal to Chicago O'Hare Intl Airport are updated daily.

How many operators does momondo search for flights from Portugal to Chicago O'Hare Intl Airport?

There is 1 operator available for flights from Portugal to Chicago O'Hare Intl Airport as of June 2026.

How old do you have to be to fly from Portugal to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$374 Cheap Flights from Portugal to Chicago O'Hare Intl Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portugal to Chicago

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Portugal to Chicago

Enter your travel dates to find the best prices.

5:50 pm - 4:45 pm

OPO

ORD

28h 55m

1 stop

7:15 pm - 11:05 am

ORD

OPO

33h 50m

1 stop

$589Scandinavian Airlines

Thu, Nov 12 - Mon, Nov 16

5:50 pm - 4:45 pm

OPO

ORD

28h 55m

1 stop

7:15 pm - 11:05 am

ORD

OPO

33h 50m

1 stop

$591Scandinavian Airlines

Thu, Nov 12 - Mon, Nov 16

12:45 pm - 9:59 pm

LIS

ORD

15h 14m

1 stop

6:59 am - 10:45 am

ORD

LIS

21h 46m

1 stop

$614Virgin Atlantic

Sat, Jul 11 - Sat, Jul 18

4:55 pm - 4:45 pm

LIS

ORD

29h 50m

1 stop

7:15 pm - 4:05 pm

ORD

LIS

14h 50m

1 stop

$616Scandinavian Airlines

Thu, Nov 12 - Mon, Nov 16

5:50 pm - 4:45 pm

OPO

ORD

28h 55m

1 stop

7:15 pm - 11:05 am

ORD

OPO

33h 50m

1 stop

$626Scandinavian Airlines

Thu, Nov 12 - Mon, Nov 16

5:50 pm - 4:45 pm

OPO

ORD

28h 55m

1 stop

7:15 pm - 11:05 am

ORD

OPO

33h 50m

1 stop

$627Scandinavian Airlines

Thu, Nov 12 - Mon, Nov 16

11:25 am - 7:44 am

LIS

ORD

50h 19m

2 stops

7:52 pm - 9:20 am

ORD

LIS

31h 28m

2 stops

$670Air Canada

Thu, Oct 8 - Sat, Oct 10

2:00 pm - 5:20 pm

LIS

ORD

33h 20m

1 stop

6:30 pm - 12:50 pm

ORD

LIS

12h 20m

1 stop

$693Icelandair

Thu, Dec 17 - Wed, Jan 6

6:10 am - 9:35 pm

LIS

ORD

21h 25m

3 stops

8:45 am - 9:15 am

ORD

LIS

18h 30m

2 stops

$701Multiple Airlines

Thu, Sep 17 - Sat, Sep 26

6:10 am - 7:48 pm

LIS

ORD

19h 38m

2 stops

7:25 pm - 9:55 pm

ORD

LIS

20h 30m

2 stops

$723Multiple Airlines

Thu, Sep 17 - Sat, Sep 26

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Virgin Atlantic flights from Portugal to Chicago O'Hare Intl Airport

Our best Virgin Atlantic deals on Portugal to Chicago O'Hare Intl Airport flight tickets

Virgin Atlantic

Jul 11

LIS12:45 pmLisbon Humberto Delgado

15h 14m

1 stop

ORD9:59 pmChicago O'Hare Intl

Jul 18

ORD6:59 amChicago O'Hare Intl

21h 46m

1 stop

LIS10:45 amLisbon Humberto Delgado

$614

Virgin Atlantic

Jul 11

LIS12:45 pmLisbon Humberto Delgado

15h 14m

1 stop

ORD9:59 pmChicago O'Hare Intl

Jul 18

ORD11:16 amChicago O'Hare Intl

17h 29m

2 stops

LIS10:45 amLisbon Humberto Delgado

$739

Icelandair flights from Portugal to Chicago O'Hare Intl Airport

Our best Icelandair deals on Portugal to Chicago O'Hare Intl Airport flight tickets

Icelandair

Dec 17

LIS2:00 pmLisbon Humberto Delgado

33h 20m

1 stop

ORD5:20 pmChicago O'Hare Intl

Jan 6

ORD6:30 pmChicago O'Hare Intl

12h 20m

1 stop

LIS12:50 pmLisbon Humberto Delgado

$693

Icelandair

Dec 20

LIS2:00 pmLisbon Humberto Delgado

33h 20m

1 stop

ORD5:20 pmChicago O'Hare Intl

Jan 6

ORD6:30 pmChicago O'Hare Intl

12h 20m

1 stop

LIS12:50 pmLisbon Humberto Delgado

$778

momondo Fare Finder

Use the filters below to find and compare flights from Portugal to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 11/12

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Mon 11/16

7:15 pm-11:05 am

1 stop33h 50m

$589

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 11/12

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Mon 11/16

7:15 pm-11:05 am

1 stop33h 50m

$591

Quickest round-trip

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sat 7/11

12:45 pm-9:59 pm

1 stop15h 14m

Chicago O'Hare Intl

Sat 7/18

6:59 am-10:45 am

1 stop21h 46m

$614

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 11/12

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Mon 11/16

7:15 pm-4:05 pm

1 stop14h 50m

$616

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 11/12

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Mon 11/16

7:15 pm-11:05 am

1 stop33h 50m

$626

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 11/12

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Mon 11/16

7:15 pm-11:05 am

1 stop33h 50m

$627

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 10/8

11:25 am-7:44 am

2 stops50h 19m

Chicago O'Hare Intl

Sat 10/10

7:52 pm-9:20 am

2 stops31h 28m

$670

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 12/17

2:00 pm-5:20 pm

1 stop33h 20m

Chicago O'Hare Intl

Wed 1/6

6:30 pm-12:50 pm

1 stop12h 20m

$693

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 9/17

6:10 am-9:35 pm

3 stops21h 25m

Chicago O'Hare Intl

Sat 9/26

8:45 am-9:15 am

2 stops18h 30m

$701

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 9/17

6:10 am-7:48 pm

2 stops19h 38m

Chicago O'Hare Intl

Sat 9/26

7:25 pm-9:55 pm

2 stops20h 30m

$723

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portugal to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Portugal averaging around $497.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Thursday when prices can be found for as low as $884. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Portugal because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,205.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Portugal in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,056 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $1,111. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portugal to Chicago O'Hare Intl flight route?

Fly from Lisbon Humberto Delgado to Chicago O'Hare Intl for the best Portugal - Chicago O'Hare Intl flight prices

What cabin class options are available on Portugal to Chicago O'Hare Intl Airport flights?

There are 3 cabin classes available to choose from on Portugal to Chicago O'Hare Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portugal to Chicago O'Hare Intl Airport flights?

You could potentially save up to 1% on your flight if you consider stops on a Portugal to Chicago O'Hare Intl Airport flight.

Cheap Portugal to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago O'Hare Intl Airport

Fastest flight time	9h 20m
Direct flights	Mon, Thu, Fri, Sat and Sun

The fastest flight from Portugal to Chicago O'Hare Intl Airport takes 9h 20m

Direct flights go from Portugal to Chicago O'Hare Intl Airport on Monday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

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Frequently asked questions about flying from Portugal to Chicago O'Hare Intl Airport

When did momondo last update prices for flights from Portugal to Chicago O'Hare Intl Airport?
Prices for flights from Portugal to Chicago O'Hare Intl Airport are updated daily.
How many operators does momondo search for flights from Portugal to Chicago O'Hare Intl Airport?
There is 1 operator available for flights from Portugal to Chicago O'Hare Intl Airport as of June 2026.
How old do you have to be to fly from Portugal to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portugal to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Portugal to Chicago O'Hare Intl Airport is Airbus A330-900neo, representing 46.15% of all bookings. The subsequent popular models are Airbus A330 at 38.46% and Airbus A330-200 at 15.38%.

Best airlines flying from Portugal to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Portugal to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom $665	Free Cancellation	Rating 7.2 2,296 reviews		Search TAP AIR PORTUGAL flights

Lake Geneva

Schaumburg

South Haven

Rockford

Merrillville

Gurnee

Rosemont

Naperville

Orland Park

Oak Brook

New Buffalo

Joliet

Kenosha

Hammond

Aurora

Racine

Janesville

Elgin

Evanston

South Holland

Why use momondo?

Why should I use momondo to find a flight deal from Portugal to Chicago?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portugal to Chicago for you.

Can I find flights from Portugal to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portugal to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from Portugal to Chicago?

momondo helps you find the best flight between Portugal and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portugal to Chicago right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Portugal and alert you when they change.

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Cheap flights from Portugal to Chicago from $374

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Chicago departing on 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Virgin Atlantic flights from Portugal to Chicago O'Hare Intl Airport

Our best Virgin Atlantic deals on Portugal to Chicago O'Hare Intl Airport flight tickets

Icelandair flights from Portugal to Chicago O'Hare Intl Airport

Our best Icelandair deals on Portugal to Chicago O'Hare Intl Airport flight tickets

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See travel insights to Chicago from

How to get the cheapest flight ticket from Portugal to Chicago O'Hare Intl Airport

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest Portugal to Chicago O'Hare Intl flight route?

What cabin class options are available on Portugal to Chicago O'Hare Intl Airport flights?

Can stopping save me money on Portugal to Chicago O'Hare Intl Airport flights?

What is the cheapest airline that flies from Portugal to Chicago O'Hare Intl?

How often are flights from Portugal to Chicago delayed?

What is the most punctual flight time for Portugal to Chicago flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Portugal to Chicago flights?

How many flights depart from Portugal to Chicago O'Hare Intl Airport on average per week?

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap Portugal to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago O'Hare Intl Airport

Fastest flight time

Direct flights

Frequently asked questions about flying from Portugal to Chicago O'Hare Intl Airport

Best airlines flying from Portugal to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Portugal to Chicago O'Hare Intl Airport with momondo

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