What is the cheapest airline that flies from Portugal to Chicago?

Finnair and British Airways are the most popular carriers operating from Portugal to Chicago

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 often are flights from Portugal to Chicago delayed?

Historically, on average around 24% 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 127 minutes.

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

4 flights are operational weekly from Portugal to Chicago as of May 2026. The most popular departure day for this route is Wed, with 50% of flights per week taking off on this day.

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 24% of their flights experiencing any sort of delay.

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 Faro to Chicago O'Hare Intl Airport is 16h 54m on average. Chicago O'Hare Intl Airport is the most popular airport in Chicago.

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 is 1 operator available for flights from Portugal to Chicago as of May 2026.

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.

$407 Cheap Flights from Portugal to Chicago in 2026

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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.

11:55 am - 2:50 pm

OPO

ORD

32h 55m

1 stop

7:10 am - 6:55 am

ORD

OPO

17h 45m

1 stop

$540United Airlines

Sat, Jun 6 - Mon, Jun 8

11:55 am - 10:19 am

OPO

ORD

28h 24m

1 stop

4:05 pm - 3:40 pm

ORD

OPO

17h 35m

1 stop

$545United Airlines

Sat, Jun 20 - Sun, Jun 21

11:55 am - 10:19 am

OPO

ORD

28h 24m

1 stop

4:05 pm - 3:40 pm

ORD

OPO

17h 35m

1 stop

$546United Airlines

Sat, Jun 20 - Sun, Jun 21

4:55 pm - 5:45 pm

LIS

ORD

29h 50m

1 stop

7:15 pm - 4:05 pm

ORD

LIS

14h 50m

1 stop

$648Scandinavian Airlines

Sat, Oct 31 - Sun, Nov 1

7:00 am - 4:10 pm

LIS

ORD

15h 10m

1 stop

7:15 pm - 4:05 pm

ORD

LIS

14h 50m

1 stop

$717Multiple Airlines

Fri, Oct 23 - Sun, Nov 1

11:55 am - 7:42 am

OPO

ORD

25h 47m

2 stops

2:02 pm - 6:50 am

ORD

OPO

10h 48m

1 stop

$777Air Canada

Sat, Jun 20 - Sun, Jun 21

11:55 am - 7:42 am

OPO

ORD

25h 47m

2 stops

6:22 pm - 7:00 am

ORD

OPO

30h 38m

2 stops

$778Air Canada

Sat, Jun 20 - Sun, Jun 21

9:15 pm - 12:40 pm

OPO

ORD

21h 25m

1 stop

6:00 pm - 5:00 pm

ORD

OPO

17h 00m

1 stop

$787TAP AIR PORTUGAL

Wed, Oct 7 - Sun, Oct 11

4:55 pm - 5:45 pm

LIS

ORD

29h 50m

1 stop

7:15 pm - 5:55 pm

ORD

LIS

16h 40m

2 stops

$800Scandinavian Airlines

Sat, Oct 31 - Sun, Nov 1

6:35 am - 2:25 pm

LIS

ORD

13h 50m

1 stop

9:00 pm - 10:30 pm

ORD

LIS

19h 30m

2 stops

$806Multiple Airlines

Wed, Sep 23 - Tue, Sep 29

TAP AIR PORTUGAL flights from Portugal to Chicago

Our best TAP AIR PORTUGAL deals on Portugal to Chicago flight tickets

TAP AIR PORTUGAL

Oct 7

OPO9:15 pmPorto

21h 25m

1 stop

ORD12:40 pmChicago O'Hare Intl

Oct 11

ORD6:00 pmChicago O'Hare Intl

17h 00m

1 stop

OPO5:00 pmPorto

$787

TAP AIR PORTUGAL

Oct 8

LIS9:20 amLisbon Humberto Delgado

9h 20m

ORD12:40 pmChicago O'Hare Intl

Oct 11

ORD6:00 pmChicago O'Hare Intl

8h 10m

LIS8:10 amLisbon Humberto Delgado

$905

TAP AIR PORTUGAL

Jun 10

FAO6:05 amFaro

15h 55m

1 stop

ORD4:00 pmChicago O'Hare Intl

Jun 11

ORD7:15 pmChicago O'Hare Intl

22h 35m

1 stop

FAO11:50 pmFaro

$1,293

Aer Lingus flights from Portugal to Chicago

Our best Aer Lingus deals on Portugal to Chicago flight tickets

Aer Lingus

Jun 3

LIS10:15 pmLisbon Humberto Delgado

27h 00m

1 stop

ORD7:15 pmChicago O'Hare Intl

Jun 13

ORD9:00 pmChicago O'Hare Intl

18h 35m

1 stop

LIS9:35 pmLisbon Humberto Delgado

$827

Aer Lingus

Jun 5

LIS10:15 pmLisbon Humberto Delgado

19h 14m

1 stop

ORD11:29 amChicago O'Hare Intl

Jun 13

ORD9:00 pmChicago O'Hare Intl

18h 35m

1 stop

LIS9:35 pmLisbon Humberto Delgado

$908

Aer Lingus

Jun 25

LIS11:25 amLisbon Humberto Delgado

13h 50m

1 stop

ORD7:15 pmChicago O'Hare Intl

Jul 9

ORD9:00 pmChicago O'Hare Intl

18h 35m

1 stop

LIS9:35 pmLisbon Humberto Delgado

$921

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 6/6

11:55 am-2:50 pm

1 stop32h 55m

Chicago O'Hare Intl

Mon 6/8

7:10 am-6:55 am

1 stop17h 45m

$540

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 6/20

11:55 am-10:19 am

1 stop28h 24m

Chicago O'Hare Intl

Sun 6/21

4:05 pm-3:40 pm

1 stop17h 35m

$545

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 6/20

11:55 am-10:19 am

1 stop28h 24m

Chicago O'Hare Intl

Sun 6/21

4:05 pm-3:40 pm

1 stop17h 35m

$546

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sat 10/31

4:55 pm-5:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sun 11/1

7:15 pm-4:05 pm

1 stop14h 50m

$648

Quickest round-trip

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 10/23

7:00 am-4:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Sun 11/1

7:15 pm-4:05 pm

1 stop14h 50m

$717

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 6/20

11:55 am-7:42 am

2 stops25h 47m

Chicago O'Hare Intl

Sun 6/21

2:02 pm-6:50 am

1 stop10h 48m

$777

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 6/20

11:55 am-7:42 am

2 stops25h 47m

Chicago O'Hare Intl

Sun 6/21

6:22 pm-7:00 am

2 stops30h 38m

$778

PortoChicago

OPO - ORD

OPOORD

Porto

Wed 10/7

9:15 pm-12:40 pm

1 stop21h 25m

Chicago O'Hare Intl

Sun 10/11

6:00 pm-5:00 pm

1 stop17h 00m

$787

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sat 10/31

4:55 pm-5:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sun 11/1

7:15 pm-5:55 pm

2 stops16h 40m

$800

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 9/23

6:35 am-2:25 pm

1 stop13h 50m

Chicago O'Hare Intl

Tue 9/29

9:00 pm-10:30 pm

2 stops19h 30m

$806

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

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 July is, on average, the cheapest month to fly to Chicago from Portugal, with most prices found around $228. If you’re not able to fly to Chicago in July, then November is your next best option. Flight prices from Portugal to Chicago during November average around $420.

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 $748. 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 at noon. Flights from Portugal to Chicago during this time can be as low as $886. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $1,056.

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

Cheap Portugal to Chicago flight deals and tips

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

Fastest flight time	9h 20m
Direct flights	Mon, Thu, Fri, Sat and Sun
Airports in Chicago	3 airports

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

Direct flights go from Portugal to Chicago on Monday, Thursday, Friday, 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

Frequently asked questions about flying from Portugal to Chicago

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 is 1 operator available for flights from Portugal to Chicago as of May 2026.
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 60.61% of all bookings. The subsequent popular models are Airbus A330 at 33.33% and Airbus A330-200 at 6.06%.

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
TAP AIR PORTUGAL	PriceFrom $665	Free Cancellation	Rating 7.2 2,250 reviews		Search TAP AIR PORTUGAL flights

Merrillville

New Buffalo

Hammond

Saint Joseph

Benton Harbor

Portage

Lansing

Valparaiso

Munster

Schererville

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.

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Cheap flights from Portugal to Chicago from $407

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 6/14. 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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TAP AIR PORTUGAL flights from Portugal to Chicago

Our best TAP AIR PORTUGAL deals on Portugal to Chicago flight tickets

Aer Lingus flights from Portugal to Chicago

Our best Aer Lingus deals on Portugal to Chicago flight tickets

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How to get the cheapest flight ticket from Portugal to Chicago

What is the cheapest month to fly to Chicago?

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?

What is the cheapest Portugal to Chicago flight route?

What is the cheapest airline that flies from Portugal to Chicago?

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 on average per week?

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

Fastest flight time

Direct flights

Airports in Chicago

Frequently asked questions about flying 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?

An easier way to manage your Chicago trip

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Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago

Fly your favorite airline to Chicago

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List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

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