How long is the flight from Illinois to Portugal?

Average flight duration from Illinois to Portugal depends on which airport you fly into and out of. Flying from Chicago to Lisbon is 10h 32m on average, while flying from Peoria to Lisbon is 19h 45m on average. Lisbon is the most popular airport in Portugal.

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

As of September 2026, 2 flights take off from Illinois and land in Portugal each week. The most common flight departure day for this route is Wed, with 100% of weekly flights taking off on this day.

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Aer Lingus are the top three most popular airlines that fly to Portugal from Illinois according to our data. TAP AIR PORTUGAL is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 17 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

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

Delta, Air France, and Lufthansa are the most popular carriers operating from Illinois to Portugal

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

Prices for flights from Illinois to Portugal are updated daily.

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

As of September 2026, there are 17 operators available to choose from for flights from Illinois to Portugal.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Portugal.

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

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

$232 Cheap Flights from Illinois to Portugal in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Portugal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 pm - 5:50 pmORD Chicago O'Hare Intl-OPO Porto

15h 10m1 stop London Heathrow

8:40 pm - 4:10 pmOPO Porto-ORD Chicago O'Hare Intl

24h 30m1 stop Madrid Barajas

$574Multiple Airlines

Tue, Mar 2 - Tue, Mar 23

5:29 pm - 5:45 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

18h 16m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 6:17 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 47m2 stops Madrid Barajas Chicago O'Hare Intl

$575Multiple Airlines

Wed, Nov 25 - Thu, Dec 3

10:34 am - 7:40 amORD Chicago O'Hare Intl-OPO Porto

15h 06m2 stops New York John F Kennedy Intl Madrid Barajas

8:40 pm - 4:10 pmOPO Porto-ORD Chicago O'Hare Intl

24h 30m1 stop Madrid Barajas

$578Iberia

Tue, Mar 2 - Tue, Mar 23

6:02 am - 9:05 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

21h 03m1 stop Philadelphia

8:20 am - 7:22 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 02m2 stops Madrid Barajas Chicago O'Hare Intl

$589American Airlines

Tue, Nov 3 - Wed, Nov 11

6:02 am - 9:05 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

21h 03m1 stop Philadelphia

8:20 am - 6:17 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

15h 57m2 stops Madrid Barajas Chicago O'Hare Intl

$589American Airlines

Wed, Nov 25 - Thu, Dec 3

6:00 am - 8:10 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

20h 10m1 stop Newark

10:15 am - 9:52 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 37m1 stop Newark

$596United Airlines

Tue, Nov 3 - Wed, Nov 11

9:40 am - 6:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

15h 15m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 3:26 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

34h 06m1 stop Toronto Pearson Intl

$597Air Canada

Wed, Nov 4 - Tue, Nov 10

4:05 pm - 8:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

10h 50m1 stop Toronto Pearson Intl

11:20 am - 3:26 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

34h 06m1 stop Toronto Pearson Intl

$598Air Canada

Wed, Nov 4 - Tue, Nov 10

9:50 am - 11:45 amSTL Lambert-St Louis-OPO Porto

19h 55m2 stops Boston Logan Intl Madrid Barajas

8:40 pm - 7:22 pmOPO Porto-STL Lambert-St Louis

28h 42m2 stops Madrid Barajas Chicago O'Hare Intl

$601Iberia

Wed, Nov 4 - Tue, Nov 10

4:05 pm - 8:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

10h 50m1 stop Toronto Pearson Intl

12:50 pm - 11:14 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

40h 24m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$645United Airlines

Wed, Nov 25 - Tue, Dec 1

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 pm - 7:00 pmORD Chicago O'Hare Intl-OPO Porto

19h 00m1 stop Lisbon Humberto Delgado

9:15 pm - 12:40 pmOPO Porto-ORD Chicago O'Hare Intl

21h 25m1 stop Lisbon Humberto Delgado

$805TAP AIR PORTUGAL

Fri, Sep 11 - Wed, Sep 16

6:05 pm - 8:25 pmORD Chicago O'Hare Intl-OPO Porto

20h 20m1 stop Lisbon Humberto Delgado

10:30 pm - 4:00 pmOPO Porto-ORD Chicago O'Hare Intl

23h 30m1 stop Lisbon Humberto Delgado

$814TAP AIR PORTUGAL

Sat, Sep 12 - Thu, Oct 22

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

8h 10mnonstop

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

9h 25mnonstop

$888JetBlue

Fri, Sep 11 - Thu, Sep 17

6:00 pm - 11:00 pmORD Chicago O'Hare Intl-OPO Porto

23h 00m2 stops Lisbon Humberto Delgado Madrid Barajas

7:10 am - 12:40 pmOPO Porto-ORD Chicago O'Hare Intl

35h 30m2 stops Madrid Barajas Lisbon Humberto Delgado

$902Multiple Airlines

Fri, Sep 11 - Wed, Sep 16

4:55 pm - 5:50 pmORD Chicago O'Hare Intl-OPO Porto

18h 55m1 stop Madrid Barajas

7:10 am - 12:40 pmOPO Porto-ORD Chicago O'Hare Intl

35h 30m2 stops Madrid Barajas Lisbon Humberto Delgado

$955Multiple Airlines

Tue, Sep 15 - Wed, Sep 30

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

8h 10mnonstop

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

9h 25mnonstop

$980JetBlue

Fri, Sep 11 - Fri, Sep 18

9:00 pm - 9:35 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

18h 35m1 stop Dublin

11:25 am - 7:15 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

13h 50m1 stop Dublin

$996Aer Lingus

Sat, Sep 12 - Thu, Oct 22

5:10 pm - 11:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

12h 05m1 stop Paris Charles de Gaulle

10:00 am - 9:37 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

17h 37m1 stop New York John F Kennedy Intl

$1,066Delta

Tue, Sep 15 - Tue, Sep 22

12:29 pm - 11:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

16h 46m2 stops Minneapolis St Paul Paris Charles de Gaulle

10:00 am - 9:37 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

17h 37m1 stop New York John F Kennedy Intl

$1,071Delta

Tue, Sep 15 - Tue, Sep 22

3:45 pm - 10:45 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

13h 00m1 stop Dublin

10:15 pm - 2:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 45m1 stop Dublin

$1,085Aer Lingus

Sun, Sep 13 - Wed, Sep 30

Cheap direct flights

Enter your travel dates to find the best prices.

7:00 pm - 9:05 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 4:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$754TAP AIR PORTUGAL

Wed, Mar 10 - Wed, Mar 24

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

8h 05mnonstop

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

9h 35mnonstop

$760JetBlue

Sun, Nov 1 - Fri, Feb 5

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

8h 10mnonstop

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

9h 20mnonstop

$764TAP AIR PORTUGAL

Sat, Oct 3 - Thu, Oct 15

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

8h 05mnonstop

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

9h 35mnonstop

$765TAP AIR PORTUGAL

Fri, Feb 26 - Wed, Mar 3

9:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

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

9h 35mnonstop

$766TAP AIR PORTUGAL

Fri, Oct 30 - Wed, Nov 4

9:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

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

9h 35mnonstop

$800JetBlue

Fri, Oct 30 - Sun, Feb 7

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

8h 10mnonstop

11:55 am - 4:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$824JetBlue

Wed, Oct 21 - Wed, Oct 28

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

8h 10mnonstop

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

9h 35mnonstop

$1,221Multiple Airlines

Wed, Oct 7 - Wed, Dec 9

7:00 pm - 9:05 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

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

9h 35mnonstop

$1,221Multiple Airlines

Wed, Dec 2 - Sun, Dec 6

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

8h 05mnonstop

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

9h 35mnonstop

$1,221Multiple Airlines

Sun, Nov 22 - Fri, Nov 27

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SWISS flights from Illinois to Portugal

Our best SWISS deals on Illinois to Portugal flight tickets

SWISS

Feb 14

ORD6:50 pmChicago O'Hare Intl

34h 25m

1 stop

OPO11:15 amPorto

Feb 22

OPO7:20 pmPorto

26h 55m

1 stop

ORD4:15 pmChicago O'Hare Intl

$621

SWISS

Jan 13

ORD6:50 pmChicago O'Hare Intl

13h 45m

1 stop

LIS2:35 pmLisbon Humberto Delgado

Jan 25

LIS11:50 amLisbon Humberto Delgado

34h 25m

1 stop

ORD4:15 pmChicago O'Hare Intl

$741

SWISS

Sep 18

ORD2:20 pmChicago O'Hare Intl

22h 10m

1 stop

OPO6:30 pmPorto

Oct 4

OPO7:20 pmPorto

23h 15m

1 stop

ORD12:35 pmChicago O'Hare Intl

$973

Scandinavian Airlines flights from Illinois to Portugal

Our best Scandinavian Airlines deals on Illinois to Portugal flight tickets

Scandinavian Airlines

Nov 6

ORD7:15 pmChicago O'Hare Intl

14h 50m

1 stop

LIS4:05 pmLisbon Humberto Delgado

Nov 10

LIS4:55 pmLisbon Humberto Delgado

29h 50m

1 stop

ORD4:45 pmChicago O'Hare Intl

$754

Scandinavian Airlines

Jan 14

ORD7:15 pmChicago O'Hare Intl

14h 50m

1 stop

LIS4:05 pmLisbon Humberto Delgado

Jan 27

LIS4:55 pmLisbon Humberto Delgado

29h 50m

1 stop

ORD4:45 pmChicago O'Hare Intl

$758

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 3/2

8:40 pm-5:50 pm

1 stop15h 10m

Porto

Tue 3/23

8:40 pm-4:10 pm

1 stop24h 30m

$574

Quickest round-trip

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/25

5:29 pm-5:45 pm

2 stops18h 16m

Lisbon Humberto Delgado

Thu 12/3

6:30 am-6:17 pm

2 stops17h 47m

$575

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 3/2

10:34 am-7:40 am

2 stops15h 06m

Porto

Tue 3/23

8:40 pm-4:10 pm

1 stop24h 30m

$578

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Tue 11/3

6:02 am-9:05 am

1 stop21h 03m

Lisbon Humberto Delgado

Wed 11/11

8:20 am-7:22 pm

2 stops17h 02m

$589

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/25

6:02 am-9:05 am

1 stop21h 03m

Lisbon Humberto Delgado

Thu 12/3

8:20 am-6:17 pm

2 stops15h 57m

$589

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Tue 11/3

6:00 am-8:10 am

1 stop20h 10m

Lisbon Humberto Delgado

Wed 11/11

10:15 am-9:52 pm

1 stop17h 37m

$596

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/4

9:40 am-6:55 am

2 stops15h 15m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-3:26 pm

1 stop34h 06m

$597

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/4

4:05 pm-8:55 am

1 stop10h 50m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-3:26 pm

1 stop34h 06m

$598

St. LouisPorto

STL Lambert-St Louis - OPO Porto

STLOPO

Lambert-St Louis

Wed 11/4

9:50 am-11:45 am

2 stops19h 55m

Porto

Tue 11/10

8:40 pm-7:22 pm

2 stops28h 42m

$601

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/25

4:05 pm-8:55 am

1 stop10h 50m

Lisbon Humberto Delgado

Tue 12/1

12:50 pm-11:14 pm

2 stops40h 24m

$645

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 Illinois to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Illinois is in February. Flight prices, which tend to average around $594, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Illinois during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $600.

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

According to our data, Wednesday is the cheapest day to fly to Portugal from Illinois. The lowest ticket price found for a Wednesday departure recently was $691. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Saturday, with ticket prices averaging around $852.

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

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Illinois to Portugal during this time can be as low as $654. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $825 per ticket.

What is the cheapest Illinois to Portugal flight route?

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

How far in advance should I book a flight from Illinois to Portugal?

You are more likely to see cheaper flights to Portugal from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $853 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Illinois for as low as $800 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Portugal 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 Illinois to Portugal flights?

You could potentially save up to 43% on your flight if you consider stops on a Illinois to Portugal flight.

Cheap Illinois to Portugal flight deals and tips

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

Best Price Found	$232
Fastest flight time	8h 05m
Direct flights	Mon, Thu, Fri, Sat and Sun
Airports in Portugal	99 airports

The best one-way flight to Portugal from Illinois in the past 72 hours is $232. The best round-trip flight deal from Illinois to Portugal found on momondo in the last 72 hours is $574.

The fastest flight from Illinois to Portugal takes 8h 05m

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

There are 99 airports in Portugal. From Illinois there are direct flights to Lisbon Humberto Delgado (LIS).

Search flight deals

Frequently asked questions about flying from Illinois to Portugal

When did momondo last update prices for flights from Illinois to Portugal?
Prices for flights from Illinois to Portugal are updated daily.
How many operators does momondo search for flights from Illinois to Portugal?
As of September 2026, there are 17 operators available to choose from for flights from Illinois to Portugal.
How old do you have to be to fly from Illinois to Portugal?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Portugal.
What documentation or ID do you need to fly to Portugal?
The required travel and health documents for your Portugal 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 Portugal. 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 Illinois to Portugal?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Portugal is Boeing 787-10 Dreamliner, representing 18.94% of all bookings. The subsequent popular models are Boeing 787-8 Dreamliner at 15.16%, Boeing 787 Dreamliner at 12.09%, and Airbus A330-900neo at 11.37%.

Best airlines flying from Illinois to Portugal

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

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $334	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $373	Free Cancellation	Rating 6.9 741 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $400	Free Cancellation	Rating 7.4 1,983 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $451	Free Cancellation	Rating 7.2 2,387 reviews	Search TAP AIR PORTUGAL flights
Air France	PriceFrom $470	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
Lufthansa	PriceFrom $474	Free Cancellation	Rating 6.8 8,215 reviews	Search Lufthansa flights
Delta	PriceFrom $485	Free Cancellation	Rating 7.8 8,553 reviews	Search Delta flights
United Airlines	PriceFrom $489	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
SWISS	PriceFrom $489	Free Cancellation	Rating 7.5 2,066 reviews	Search SWISS flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,576 reviews	Search KLM flights

Why use momondo?

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

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 Illinois to Portugal for you.

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

Flights from Illinois to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Illinois to Portugal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

An easier way to manage your Portugal 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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Find better results for your trip to Portugal

Popular cities

Other flights from Illinois

Other flights to Portugal

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $471

Flights to Portofrom $539

Flights to Funchalfrom $589

Flights to Farofrom $576

Flights to Ponta Delgadafrom $565

Flights to Lajesfrom $567

Flights to Hortafrom $582

Flights to Pico Islandfrom $588

Flights to Porto Santofrom $804

Flights to Velasfrom $591

Cheap flights from Illinois to Portugal from $232

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Portugal departing on 10/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Illinois to Portugal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Price Alerts

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SWISS flights from Illinois to Portugal

Our best SWISS deals on Illinois to Portugal flight tickets

Scandinavian Airlines flights from Illinois to Portugal

Our best Scandinavian Airlines deals on Illinois to Portugal flight tickets

momondo Fare Finder

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

See travel insights to Portugal from

How to get the cheapest flight ticket from Illinois to Portugal

What is the cheapest month to fly to Portugal?

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

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

What is the cheapest Illinois to Portugal flight route?

How far in advance should I book a flight from Illinois to Portugal?

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

Can stopping save me money on Illinois to Portugal flights?

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

What airlines fly to Portugal?

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

How long is the flight from Illinois to Portugal?

Cheap Illinois to Portugal flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Portugal

Frequently asked questions about flying from Illinois to Portugal

Best airlines flying from Illinois to Portugal

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

Why use momondo?

An easier way to manage your Portugal 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 Portugal

Popular cities in Portugal

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

Illinois flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

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

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year