How many flights depart from Portugal to Chicago on average per week?

2 flights are operational weekly from Portugal to Chicago as of December 2025. The most popular departure day for this route is Fri, with 100% of flights per week taking off on this day.

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.

What airlines fly to Chicago?

TAP AIR PORTUGAL, KLM and Aer Lingus are the top three most popular airlines that fly to Chicago from Portugal according to our data. TAP AIR PORTUGAL is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 5 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago?

Average flight duration from Portugal to Chicago depends on which airport you fly into and out of. Flying from Lisbon to Chicago O'Hare Intl Airport is 9h 20m on average, while flying from Porto to Chicago O'Hare Intl Airport is 12h 35m on average. Chicago O'Hare Intl Airport is the most popular airport in Chicago.

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.

When did momondo last update prices for flights from Portugal to Chicago?

Prices for flights from Portugal to Chicago were last updated today.

How many operators does momondo search for flights from Portugal to Chicago?

There are 5 operators available for flights from Portugal to Chicago as of December 2025.

How old do you have to be to fly from Portugal to Chicago?

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.

What documentation or ID do you need to fly to Chicago?

The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$332 Cheap Flights from Portugal to Chicago in 2025/26

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4:55 pm - 4:45 pm

LIS

ORD

29h 50m1 stop

7:10 pm - 4:05 pm

ORD

LIS

14h 55m1 stop

$466Scandinavian Airlines

śr., lut 4 - ndz., lut 8

5:10 pm - 4:55 pm

FAO

ORD

29h 45m1 stop

7:10 pm - 4:20 pm

ORD

FAO

15h 10m1 stop

$473Scandinavian Airlines

sob., sty 24 - pt., sty 30

4:55 pm - 4:45 pm

LIS

ORD

29h 50m1 stop

7:10 pm - 4:05 pm

ORD

LIS

14h 55m1 stop

$474Scandinavian Airlines

ndz., lut 1 - ndz., lut 15

8:20 am - 2:55 pm

OPO

ORD

12h 35m1 stop

8:45 pm - 4:45 pm

ORD

OPO

14h 00m1 stop

$685Multiple Airlines

czw., sty 15 - śr., sty 28

1:15 pm - 3:10 pm

OPO

ORD

31h 55m2 stops

5:20 pm - 5:00 pm

ORD

OPO

17h 40m2 stops

$687Multiple Airlines

pon., lut 9 - pon., lut 16

8:20 am - 2:55 pm

OPO

ORD

12h 35m1 stop

6:45 pm - 7:40 am

ORD

OPO

30h 55m2 stops

$689American Airlines

czw., sty 15 - śr., sty 28

8:20 am - 7:51 am

OPO

ORD

29h 31m2 stops

8:45 pm - 7:40 am

ORD

OPO

28h 55m2 stops

$694American Airlines

czw., sty 15 - śr., sty 28

6:50 pm - 8:10 pm

FAO

ORD

31h 20m2 stops

4:14 pm - 6:15 pm

ORD

FAO

44h 01m2 stops

$735British Airways

sob., sty 24 - pt., sty 30

6:05 am - 2:45 pm

FAO

ORD

14h 40m1 stop

7:10 pm - 11:50 pm

ORD

FAO

22h 40m1 stop

$876TAP AIR PORTUGAL

ndz., lut 1 - śr., lut 4

11:15 am - 3:25 pm

FAO

ORD

34h 10m1 stop

8:25 pm - 11:50 pm

ORD

FAO

21h 25m1 stop

$883TAP AIR PORTUGAL

czw., sty 22 - ndz., sty 25

United Airlines flights from Portugal to Chicago

Our best United Airlines deals on Portugal to Chicago flight tickets

United Airlines

Jun 3

OPO12:00 pmPorto

13h 55m

1 stop

ORD7:55 pmChicago O'Hare Intl

Jun 13

ORD8:45 amChicago O'Hare Intl

16h 05m

1 stop

OPO6:50 amPorto

$808

Find similar

United Airlines

Feb 9

OPO6:00 amPorto

13h 25m

1 stop

ORD1:25 pmChicago O'Hare Intl

Feb 16

ORD10:35 amChicago O'Hare Intl

22h 20m

2 stops

OPO2:55 pmPorto

$809

Find similar

United Airlines

Feb 8

OPO6:00 amPorto

13h 25m

1 stop

ORD1:25 pmChicago O'Hare Intl

Feb 15

ORD8:50 amChicago O'Hare Intl

20h 50m

2 stops

OPO11:40 amPorto

$810

Find similar

Scandinavian Airlines flights from Portugal to Chicago

Our best Scandinavian Airlines deals on Portugal to Chicago flight tickets

Scandinavian Airlines

Feb 4

LIS4:55 pmLisbon Humberto Delgado

29h 50m

1 stop

ORD4:45 pmChicago O'Hare Intl

Feb 8

ORD7:10 pmChicago O'Hare Intl

14h 55m

1 stop

LIS4:05 pmLisbon Humberto Delgado

$466

Find similar

Scandinavian Airlines

Jan 24

FAO5:10 pmFaro

29h 45m

1 stop

ORD4:55 pmChicago O'Hare Intl

Jan 30

ORD7:10 pmChicago O'Hare Intl

15h 10m

1 stop

FAO4:20 pmFaro

$473

Find similar

Scandinavian Airlines

Feb 1

LIS4:55 pmLisbon Humberto Delgado

29h 50m

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

$479

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

śr. 2/4

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

ndz. 2/8

7:10 pm-4:05 pm

1 stop14h 55m

$466

FaroChicago

FAO - ORD

FAOORD

Faro

sob. 1/24

5:10 pm-4:55 pm

1 stop29h 45m

Chicago O'Hare Intl

pt. 1/30

7:10 pm-4:20 pm

1 stop15h 10m

$473

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

ndz. 2/1

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

ndz. 2/15

7:10 pm-4:05 pm

1 stop14h 55m

$474

PortoChicago

OPO - ORD

OPOORD

Porto

czw. 1/15

8:20 am-2:55 pm

1 stop12h 35m

Chicago O'Hare Intl

śr. 1/28

8:45 pm-4:45 pm

1 stop14h 00m

$685

PortoChicago

OPO - ORD

OPOORD

Porto

pon. 2/9

1:15 pm-3:10 pm

2 stops31h 55m

Chicago O'Hare Intl

pon. 2/16

5:20 pm-5:00 pm

2 stops17h 40m

$687

PortoChicago

OPO - ORD

OPOORD

Porto

czw. 1/15

8:20 am-2:55 pm

1 stop12h 35m

Chicago O'Hare Intl

śr. 1/28

6:45 pm-7:40 am

2 stops30h 55m

$689

PortoChicago

OPO - ORD

OPOORD

Porto

czw. 1/15

8:20 am-7:51 am

2 stops29h 31m

Chicago O'Hare Intl

śr. 1/28

8:45 pm-7:40 am

2 stops28h 55m

$694

FaroChicago

FAO - ORD

FAOORD

Faro

sob. 1/24

6:50 pm-8:10 pm

2 stops31h 20m

Chicago O'Hare Intl

pt. 1/30

4:14 pm-6:15 pm

2 stops44h 01m

$735

FaroChicago

FAO - ORD

FAOORD

Faro

ndz. 2/1

6:05 am-2:45 pm

1 stop14h 40m

Chicago O'Hare Intl

śr. 2/4

7:10 pm-11:50 pm

1 stop22h 40m

$876

FaroChicago

FAO - ORD

FAOORD

Faro

czw. 1/22

11:15 am-3:25 pm

1 stop34h 10m

Chicago O'Hare Intl

ndz. 1/25

8:25 pm-11:50 pm

1 stop21h 25m

$883

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How to get the cheapest flight ticket from Portugal to Chicago

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?

The month of February is, on average, the cheapest month to fly to Chicago from Portugal, with most prices found around $613. If you’re not able to fly to Chicago in February, then March is your next best option. Flight prices from Portugal to Chicago during March average around $710.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago 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. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portugal to Chicago for around $1,205.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Portugal to Chicago during this time can be as low as $622. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $1,083.

What is the cheapest Portugal to Chicago flight route?

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

What cabin class options are available on Portugal to Chicago flights?

There are 3 cabin classes available to choose from on Portugal to Chicago 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 flights?

You could potentially save up to 2% on your flight if you consider stops on a Portugal to Chicago flight.

Cheap Portugal to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago

Best Price Found	$629
Fastest flight time	9h 20m
Direct flights	Mon, Thu, Sat and Sun
Airports in Chicago	3 airports

The best one-way flight to Chicago from Portugal in the past 72 hours is $629. The best round-trip flight deal from Portugal to Chicago found on momondo in the last 72 hours is $857.

The fastest flight from Portugal to Chicago takes 9h 20m

Direct flights go from Portugal to Chicago on Monday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.

There are 3 airports in Chicago. From Portugal there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

When did momondo last update prices for flights from Portugal to Chicago?
Prices for flights from Portugal to Chicago were last updated today.
How many operators does momondo search for flights from Portugal to Chicago?
There are 5 operators available for flights from Portugal to Chicago as of December 2025.
How old do you have to be to fly from Portugal to Chicago?
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.
What documentation or ID do you need to fly to Chicago?
The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Portugal to Chicago?
momondo data reveals that the most frequently booked plane model on the route from Portugal to Chicago is Airbus A330-900neo, representing 56.25% of all bookings. The subsequent popular models are Airbus A330 at 29.17% and Airbus A330-200 at 14.58%.

Best airlines flying from Portugal to Chicago

Compare and see reviews for airlines that fly from Portugal to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $650	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
KLM	PriceFrom $653	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $665	Free Cancellation	Rating 7.2 2,100 reviews	Search TAP AIR PORTUGAL flights
Aer Lingus	PriceFrom $669	Free Cancellation	Rating 7.2 1,412 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $760	Free Cancellation	Rating 7.4 9,117 reviews	Search United Airlines flights

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New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Valparaiso

Schererville

Munster

Crown Point

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

It is quick and easy to find Portugal to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits 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?

Yes momondo offers price alerts on flights to Chicago from Portugal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chicago 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.

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Cheap flights from Portugal to Chicago from $332

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 4/18. 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

Recent one-way flight deals from Portugal to Chicago

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United Airlines flights from Portugal to Chicago

Our best United Airlines deals on Portugal to Chicago flight tickets

Scandinavian Airlines flights from Portugal to Chicago

Our best Scandinavian Airlines deals on Portugal to Chicago flight tickets

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Use the filters below to find and compare flights from Portugal to Chicago that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from Portugal to Chicago

What is the cheapest month to fly to Chicago?

The month of February is, on average, the cheapest month to fly to Chicago from Portugal, with most prices found around $613. If you’re not able to fly to Chicago in February, then March is your next best option. Flight prices from Portugal to Chicago during March average around $710.

What is the cheapest day to depart on your flight to Chicago?

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Portugal to Chicago during this time can be as low as $622. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $1,083.

What is the cheapest Portugal to Chicago flight route?

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

What cabin class options are available on Portugal to Chicago flights?

There are 3 cabin classes available to choose from on Portugal to Chicago 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 flights?

You could potentially save up to 2% on your flight if you consider stops on a Portugal to Chicago flight.

What airlines fly to Chicago?

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 many flights depart from Portugal to Chicago on average per week?

2 flights are operational weekly from Portugal to Chicago as of December 2025. The most popular departure day for this route is Fri, with 100% of flights per week taking off on this day.

How long does it take to fly to Chicago?

Cheap Portugal to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

When did momondo last update prices for flights from Portugal to Chicago?

How many operators does momondo search for flights from Portugal to Chicago?

How old do you have to be to fly from Portugal to Chicago?

What documentation or ID do you need to fly to Chicago?

What is the most popular plane model from Portugal to Chicago?

Best airlines flying from Portugal to Chicago

Compare and see reviews for airlines that fly from Portugal to Chicago 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 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 the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago