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

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

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.

How often are flights from Portugal to Chicago delayed?

Historically, on average around 23% 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 135 minutes.

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 23% of their flights experiencing any sort of delay.

What airlines fly to Chicago O'Hare Intl Airport?

TAP AIR PORTUGAL, KLM and United Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Portugal according to our data. TAP AIR PORTUGAL is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 5 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

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

On average, it takes 9h 20m 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 Faro and into Chicago O'Hare Intl Airport, then the flight time is around 15h 20m.

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 are 5 operators available for flights from Portugal to Chicago O'Hare Intl Airport as of December 2025.

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.

$351 Cheap Flights from Portugal to Chicago O'Hare Intl Airport in 2025/26

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4:40 pm - 4:45 pm

LIS

ORD

30h 05m1 stop

7:10 pm - 4:05 pm

ORD

LIS

14h 55m1 stop

$437Scandinavian Airlines

Fri, Jan 30 - Sun, Feb 15

4:55 pm - 4:55 pm

LIS

ORD

30h 00m1 stop

7:10 pm - 4:05 pm

ORD

LIS

14h 55m1 stop

$438Scandinavian Airlines

Wed, Jan 28 - Sun, Feb 1

4:40 pm - 4:45 pm

LIS

ORD

30h 05m1 stop

7:10 pm - 4:05 pm

ORD

LIS

14h 55m1 stop

$439Scandinavian Airlines

Fri, Jan 30 - Sun, Feb 15

4:40 pm - 4:45 pm

LIS

ORD

30h 05m1 stop

7:10 pm - 4:05 pm

ORD

LIS

14h 55m1 stop

$463Scandinavian Airlines

Fri, Feb 6 - Sun, Feb 8

6:00 pm - 3:25 pm

OPO

ORD

27h 25m1 stop

7:10 pm - 5:00 pm

ORD

OPO

15h 50m1 stop

$571TAP AIR PORTUGAL

Thu, Jan 15 - Wed, Jan 28

1:00 pm - 4:45 pm

OPO

ORD

33h 45m2 stops

7:20 pm - 9:15 pm

ORD

OPO

19h 55m2 stops

$582Multiple Airlines

Thu, Jan 15 - Wed, Jan 28

1:00 pm - 4:45 pm

OPO

ORD

33h 45m2 stops

7:20 pm - 9:15 pm

ORD

OPO

19h 55m2 stops

$614Multiple Airlines

Thu, Jan 15 - Wed, Jan 28

4:10 pm - 2:20 pm

OPO

ORD

28h 10m1 stop

4:25 pm - 7:20 pm

ORD

OPO

20h 55m1 stop

$772KLM

Thu, Jan 15 - Wed, Jan 28

1:10 pm - 1:10 pm

FAO

ORD

30h 00m1 stop

4:20 pm - 12:00 pm

ORD

FAO

13h 40m1 stop

$812Lufthansa

Thu, Dec 25 - Wed, Dec 31

6:05 am - 3:25 pm

FAO

ORD

15h 20m1 stop

8:25 pm - 3:45 pm

ORD

FAO

13h 20m1 stop

$866TAP AIR PORTUGAL

Fri, Jan 23 - Sun, Jan 25

Scandinavian Airlines flights from Portugal to Chicago O'Hare Intl Airport

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

Scandinavian Airlines

Jan 30

LIS4:40 pmLisbon Humberto Delgado

30h 05m

1 stop

ORD4:45 pmChicago O'Hare Intl

Feb 15

ORD7:10 pmChicago O'Hare Intl

14h 55m

1 stop

LIS4:05 pmLisbon Humberto Delgado

$437

Find similar

Scandinavian Airlines

Jan 28

LIS4:55 pmLisbon Humberto Delgado

30h 00m

1 stop

ORD4:55 pmChicago O'Hare Intl

Feb 1

ORD7:10 pmChicago O'Hare Intl

14h 55m

1 stop

LIS4:05 pmLisbon Humberto Delgado

$438

Find similar

Scandinavian Airlines

Jan 30

LIS4:40 pmLisbon Humberto Delgado

30h 05m

1 stop

ORD4:45 pmChicago O'Hare Intl

Feb 15

ORD7:10 pmChicago O'Hare Intl

14h 55m

1 stop

LIS4:05 pmLisbon Humberto Delgado

$439

Find similar

TAP AIR PORTUGAL flights from Portugal to Chicago O'Hare Intl Airport

Our best TAP AIR PORTUGAL deals on Portugal to Chicago O'Hare Intl Airport flight tickets

TAP AIR PORTUGAL

Jan 15

OPO6:00 pmPorto

27h 25m

1 stop

ORD3:25 pmChicago O'Hare Intl

Jan 28

ORD7:10 pmChicago O'Hare Intl

15h 50m

1 stop

OPO5:00 pmPorto

$571

Find similar

TAP AIR PORTUGAL

Jan 23

FAO6:05 amFaro

15h 20m

1 stop

ORD3:25 pmChicago O'Hare Intl

Jan 25

ORD8:25 pmChicago O'Hare Intl

13h 20m

1 stop

FAO3:45 pmFaro

$866

Find similar

TAP AIR PORTUGAL

Jan 23

FAO6:05 amFaro

15h 20m

1 stop

ORD3:25 pmChicago O'Hare Intl

Jan 25

ORD8:25 pmChicago O'Hare Intl

21h 25m

1 stop

FAO11:50 pmFaro

$867

Find similar

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

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 1/30

4:40 pm-4:45 pm

1 stop30h 05m

Chicago O'Hare Intl

Sun 2/15

7:10 pm-4:05 pm

1 stop14h 55m

$437

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 1/28

4:55 pm-4:55 pm

1 stop30h 00m

Chicago O'Hare Intl

Sun 2/1

7:10 pm-4:05 pm

1 stop14h 55m

$438

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 1/30

4:40 pm-4:45 pm

1 stop30h 05m

Chicago O'Hare Intl

Sun 2/15

7:10 pm-4:05 pm

1 stop14h 55m

$439

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 2/6

4:40 pm-4:45 pm

1 stop30h 05m

Chicago O'Hare Intl

Sun 2/8

7:10 pm-4:05 pm

1 stop14h 55m

$463

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/15

6:00 pm-3:25 pm

1 stop27h 25m

Chicago O'Hare Intl

Wed 1/28

7:10 pm-5:00 pm

1 stop15h 50m

$571

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/15

1:00 pm-4:45 pm

2 stops33h 45m

Chicago O'Hare Intl

Wed 1/28

7:20 pm-9:15 pm

2 stops19h 55m

$582

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/15

1:00 pm-4:45 pm

2 stops33h 45m

Chicago O'Hare Intl

Wed 1/28

7:20 pm-9:15 pm

2 stops19h 55m

$614

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/15

4:10 pm-2:20 pm

1 stop28h 10m

Chicago O'Hare Intl

Wed 1/28

4:25 pm-7:20 pm

1 stop20h 55m

$772

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 12/25

1:10 pm-1:10 pm

1 stop30h 00m

Chicago O'Hare Intl

Wed 12/31

4:20 pm-12:00 pm

1 stop13h 40m

$812

FaroChicago

FAO - ORD

FAOORD

Faro

Fri 1/23

6:05 am-3:25 pm

1 stop15h 20m

Chicago O'Hare Intl

Sun 1/25

8:25 pm-3:45 pm

1 stop13h 20m

$866

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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 April is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Portugal averaging around $721.

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 $748. 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 at noon is the least expensive time of day to depart. momondo users have found prices as low as $932 when looking at flights departing at noon. Try not to purchase tickets in the morning because they tend to be around $1,083. 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 flights?

There are 3 cabin classes available to choose from on Portugal to Chicago O'Hare Intl 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 14% 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

Best Price Found	$548
Fastest flight time	9h 20m
Direct flights	Mon, Thu, Fri, Sat and Sun

The best one-way flight to Chicago O'Hare Intl Airport from Portugal in the past 72 hours is $548. The best round-trip flight deal from Portugal to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $529.

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. The only airline offering direct flights is TAP AIR PORTUGAL.

Search flight deals

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 are 5 operators available for flights from Portugal to Chicago O'Hare Intl Airport as of December 2025.
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 58.00% of all bookings. The subsequent popular models are Airbus A330 at 28.00% and Airbus A330-200 at 14.00%.

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 $580	Free Cancellation	Rating 7.1 2,086 reviews	Search TAP AIR PORTUGAL flights
Delta	PriceFrom $650	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
KLM	PriceFrom $653	Free Cancellation	Rating 7.7 1,431 reviews	Search KLM flights
Aer Lingus	PriceFrom $669	Free Cancellation	Rating 7.2 1,391 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $734	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights

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South Haven

Schaumburg

Rockford

Merrillville

Gurnee

Naperville

Rosemont

Kenosha

New Buffalo

Joliet

Oak Brook

Orland Park

Racine

Hammond

Tinley Park

Janesville

Aurora

Elgin

Benton Harbor

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.

An easier way to manage your Chicago O'Hare Intl Airport trip

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Cheap flights from Portugal to Chicago from $351

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 1/27. 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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Find the cheapest flights from Portugal to Chicago

Recent round-trip flight deals from Portugal to Chicago

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Scandinavian Airlines flights from Portugal to Chicago O'Hare Intl Airport

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

TAP AIR PORTUGAL flights from Portugal to Chicago O'Hare Intl Airport

Our best TAP AIR PORTUGAL deals on Portugal to Chicago O'Hare Intl Airport flight tickets

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.

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?

The month of April is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Portugal averaging around $721.

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?

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 flights?

There are 3 cabin classes available to choose from on Portugal to Chicago O'Hare Intl 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 14% on your flight if you consider stops on a Portugal to Chicago O'Hare Intl Airport flight.

What airlines fly to Chicago O'Hare Intl Airport?

How often are flights from Portugal to Chicago delayed?

Historically, on average around 23% 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 135 minutes.

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

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

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.

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 23% of their flights experiencing any sort of delay.

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

Best Price Found

Fastest flight time

Direct flights

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

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

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

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

What is the most popular plane model 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

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo