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

As of September 2026, there are 4 flights per week flying from Portugal to Illinois. The most common day of the week flights depart is Thu, with 50% of flights taking off on this day.

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

British Airways and Iberia are the most popular carriers operating from Portugal to Illinois

How long is the flight from Portugal to Illinois?

The flight from Portugal to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Lisbon (a popular airport in Portugal) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 9h 20m on average. If you fly from Porto (another popular airport in Portugal) to Chicago O'Hare Intl Airport, then the average flight time is 13h 35m.

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

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

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

The number of operators available for flights from Portugal to Illinois is 1 as of September 2026.

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

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 Illinois.

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

The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$358 Cheap Flights from Portugal to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portugal to Illinois

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Recent round-trip flight deals from Portugal to Illinois

Enter your travel dates to find the best prices.

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Thu, Feb 18 - Mon, Mar 1

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Wed, Feb 17 - Thu, Feb 25

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Sun, Feb 14 - Sun, Feb 28

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Wed, Feb 17 - Mon, Mar 1

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Thu, Jan 14 - Sun, Jan 17

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Sun, Feb 14 - Mon, Mar 1

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Sun, Feb 14 - Tue, Mar 2

4:55 pm - 4:45 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

29h 50m1 stop Kastrup Copenhagen

7:15 pm - 4:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Kastrup Copenhagen

$622Scandinavian Airlines

Sun, Feb 14 - Sat, Feb 27

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$672TAP AIR PORTUGAL

Thu, Oct 1 - Wed, Oct 14

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$676TAP AIR PORTUGAL

Thu, Oct 1 - Sat, Oct 17

Recent last minute flight deals from Portugal to Illinois

Enter your travel dates to find the best prices.

6:35 am - 9:35 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 00m2 stops Madrid Barajas Boston Logan Intl

5:55 pm - 11:00 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

23h 05m1 stop London Heathrow

$789American Airlines

Thu, Sep 10 - Tue, Sep 22

6:35 am - 9:35 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 00m2 stops Madrid Barajas Boston Logan Intl

8:50 pm - 11:15 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

20h 25m1 stop London Heathrow

$789American Airlines

Thu, Sep 10 - Wed, Sep 23

8:25 am - 11:36 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 11m2 stops Madrid Barajas Washington, D.C. Dulles Intl

8:50 pm - 11:05 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

20h 15m1 stop London Heathrow

$789American Airlines

Fri, Sep 11 - Sun, Sep 27

8:25 am - 11:36 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 11m2 stops Madrid Barajas Washington, D.C. Dulles Intl

8:50 pm - 11:00 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

20h 10m1 stop London Heathrow

$789American Airlines

Fri, Sep 11 - Tue, Sep 22

6:35 am - 9:35 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 00m2 stops Madrid Barajas Boston Logan Intl

8:50 pm - 11:10 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop London Heathrow

$789American Airlines

Thu, Sep 10 - Sat, Sep 26

8:25 am - 11:36 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 11m2 stops Madrid Barajas Washington, D.C. Dulles Intl

8:50 pm - 11:10 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop London Heathrow

$789American Airlines

Fri, Sep 11 - Sat, Sep 26

8:25 am - 11:36 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 11m2 stops Madrid Barajas Washington, D.C. Dulles Intl

5:55 pm - 11:15 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

23h 20m1 stop London Heathrow

$789American Airlines

Fri, Sep 11 - Wed, Sep 23

8:25 am - 10:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

19h 35m2 stops Madrid Barajas Washington, D.C. Dulles Intl

5:48 pm - 6:00 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

18h 12m2 stops Philadelphia London Heathrow

$789American Airlines

Fri, Sep 11 - Fri, Sep 25

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$1,229TAP AIR PORTUGAL

Fri, Sep 11 - Wed, Sep 23

9:15 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$1,229TAP AIR PORTUGAL

Thu, Sep 10 - Wed, Sep 23

Recent direct flight deals from Portugal to Illinois

Enter your travel dates to find the best prices.

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$672TAP AIR PORTUGAL

Thu, Oct 1 - Wed, Oct 14

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$676TAP AIR PORTUGAL

Thu, Oct 1 - Sat, Oct 17

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$680TAP AIR PORTUGAL

Thu, Oct 1 - Wed, Oct 14

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$685TAP AIR PORTUGAL

Thu, Oct 1 - Sat, Oct 17

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

8:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

$707JetBlue

Wed, Feb 17 - Sun, Feb 28

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

8:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

$707TAP AIR PORTUGAL

Wed, Feb 17 - Fri, Feb 26

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$881TAP AIR PORTUGAL

Fri, Sep 18 - Sat, Oct 3

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$884TAP AIR PORTUGAL

Fri, Sep 18 - Sat, Oct 3

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$907TAP AIR PORTUGAL

Fri, Sep 18 - Sat, Oct 3

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

6:15 pm - 8:25 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

$1,222JetBlue

Fri, Sep 18 - Sat, Oct 3

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Delta flights from Portugal to Illinois

Our best Delta deals on Portugal to Illinois flight tickets

Delta

Oct 1

LIS5:00 amLisbon Humberto Delgado

15h 15m

1 stop

ORD2:15 pmChicago O'Hare Intl

Oct 17

ORD6:05 pmChicago O'Hare Intl

14h 50m

2 stops

LIS2:55 pmLisbon Humberto Delgado

$716

Delta

Oct 1

LIS5:00 amLisbon Humberto Delgado

15h 15m

1 stop

ORD2:15 pmChicago O'Hare Intl

Oct 17

ORD6:05 pmChicago O'Hare Intl

14h 50m

2 stops

LIS2:55 pmLisbon Humberto Delgado

$718

Delta

Oct 1

LIS5:00 amLisbon Humberto Delgado

19h 26m

2 stops

ORD6:26 pmChicago O'Hare Intl

Oct 17

ORD12:00 pmChicago O'Hare Intl

17h 15m

2 stops

LIS11:15 amLisbon Humberto Delgado

$722

British Airways flights from Portugal to Illinois

Our best British Airways deals on Portugal to Illinois flight tickets

British Airways

Sep 17

FAO1:20 pmFaro

29h 05m

1 stop

ORD12:25 pmChicago O'Hare Intl

Sep 21

ORD1:35 pmChicago O'Hare Intl

19h 10m

2 stops

FAO2:45 pmFaro

$800

British Airways

Oct 1

OPO8:20 amPorto

21h 16m

2 stops

ORD11:36 pmChicago O'Hare Intl

Oct 14

ORD7:05 pmChicago O'Hare Intl

18h 00m

1 stop

OPO7:05 pmPorto

$807

British Airways

Sep 8

LIS7:10 amLisbon Humberto Delgado

14h 45m

1 stop

ORD3:55 pmChicago O'Hare Intl

Sep 23

ORD10:11 amChicago O'Hare Intl

17h 54m

2 stops

LIS10:05 amLisbon Humberto Delgado

$815

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Thu 2/18

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Mon 3/1

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Wed 2/17

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Thu 2/25

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Sun 2/14

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sun 2/28

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Wed 2/17

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Mon 3/1

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Thu 1/14

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sun 1/17

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Sun 2/14

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Mon 3/1

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Sun 2/14

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Tue 3/2

7:15 pm-4:05 pm

1 stop14h 50m

$622

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Sun 2/14

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sat 2/27

7:15 pm-4:05 pm

1 stop14h 50m

$622

Quickest round-trip

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Thu 10/1

9:20 am-12:40 pm

Nonstop9h 20m

Chicago O'Hare Intl

Wed 10/14

6:00 pm-8:10 am

Nonstop8h 10m

$672

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Thu 10/1

9:20 am-12:40 pm

Nonstop9h 20m

Chicago O'Hare Intl

Sat 10/17

6:05 pm-8:15 am

Nonstop8h 10m

$676

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 Illinois

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

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Portugal is in June. Flight prices, which tend to average around $744, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of June, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $750.

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

The cheapest day to depart from Portugal to Illinois is on a Sunday when prices can be found for as low as $904. Flights from Portugal to Illinois on a Wednesday will generally be more expensive and average around $1,095. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Portugal to Illinois flight route?

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

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

There are 2 cabin classes available to choose from on Portugal to Illinois 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 Illinois flights?

You could potentially save up to 14% on your flight if you consider stops on a Portugal to Illinois flight.

Cheap Portugal to Illinois flight deals and tips

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

Best Price Found	$358
Fastest flight time	9h 20m
Direct flights	Mon, Thu, Fri, Sat and Sun
Airports in Illinois	98 airports

The best one-way flight to Illinois from Portugal in the past 72 hours is $358. The best round-trip flight deal from Portugal to Illinois found on momondo in the last 72 hours is $622.

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

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

There are 98 airports in Illinois. From Portugal there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Portugal to Illinois

When did momondo last update prices for flights from Portugal to Illinois?
Prices for flights from Portugal to Illinois were last updated today.
How many operators does momondo search for flights from Portugal to Illinois?
The number of operators available for flights from Portugal to Illinois is 1 as of September 2026.
How old do you have to be to fly from Portugal to Illinois?
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 Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois 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 Illinois. 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 Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Portugal to Illinois is Airbus A330-900neo (47.83% of total bookings). The next most popular plane models are Airbus A330 (34.78%) and Airbus A330-200 (17.39%).

Best airlines flying from Portugal to Illinois

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

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom $697	Free Cancellation	Rating 7.2 2,381 reviews		Search TAP AIR PORTUGAL flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portugal to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Portugal.

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

If you are not ready to book a flight from Portugal to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.