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

As of November 2025, 4 flights take off from Illinois and land in Portugal each week. The most common flight departure day for this route is Fri, with 50% of weekly flights taking off on this day.

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 11h 02m on average, while flying from Peoria to Lisbon is 12h 50m on average. Lisbon is the most popular airport in Portugal.

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

Scandinavian Airlines is the most popular carrier operating from Illinois to Portugal

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and British Airways 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 61% 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.

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 November 2025, 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.

$245 Cheap Flights from Illinois to Portugal in 2025/26

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Cheap round-trip flights

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7:10 pm - 1:05 pmORD-OPO

11h 55m1 stop

5:00 am - 2:45 pmOPO-ORD

15h 45m1 stop

$425TAP AIR PORTUGAL

Find Deal

Wed, Dec 3 - Sun, Dec 14

8:15 pm - 3:55 pmORD-OPO

13h 40m1 stop

8:00 pm - 3:25 pmOPO-ORD

25h 25m1 stop

$426TAP AIR PORTUGAL

Find Deal

Fri, Nov 28 - Thu, Dec 11

10:24 am - 3:20 pmORD-FNC

22h 56m2 stops

2:35 pm - 4:55 pmFNC-ORD

32h 20m2 stops

$435Scandinavian Airlines

Find Deal

Fri, Jan 30 - Sat, Feb 7

6:42 pm - 9:20 amSTL-LIS

32h 38m2 stops

11:00 am - 3:29 pmLIS-STL

34h 29m1 stop

$447Air Canada

Find Deal

Mon, Dec 8 - Wed, Dec 24

11:40 am - 8:00 amSTL-LIS

14h 20m2 stops

11:15 am - 8:41 pmLIS-STL

15h 26m2 stops

$455Virgin Atlantic

Find Deal

Mon, Dec 8 - Wed, Dec 24

10:24 am - 3:20 pmORD-FNC

22h 56m2 stops

4:10 pm - 4:55 pmFNC-ORD

30h 45m1 stop

$458Scandinavian Airlines

Find Deal

Fri, Jan 30 - Sat, Feb 7

4:05 pm - 9:20 amSTL-LIS

11h 15m1 stop

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$462Multiple Airlines

Find Deal

Mon, Dec 8 - Wed, Dec 24

4:20 pm - 11:55 amORD-OPO

13h 35m1 stop

12:05 pm - 4:20 pmOPO-ORD

34h 15m1 stop

$471Multiple Airlines

Find Deal

Mon, Jan 5 - Tue, Jan 13

3:35 pm - 1:15 pmORD-OPO

15h 40m2 stops

6:00 am - 9:13 amOPO-ORD

33h 13m2 stops

$483Air Canada

Find Deal

Wed, Feb 4 - Wed, Feb 11

10:45 am - 8:40 amORD-LIS

15h 55m2 stops

10:00 am - 10:46 pmLIS-ORD

18h 46m2 stops

$510Virgin Atlantic

Find Deal

Wed, Dec 3 - Wed, Dec 10

Air Canada flights from Illinois to Portugal

Our best Air Canada deals on Illinois to Portugal flight tickets

Air Canada

Dec 8

STL6:42 pmLambert-St Louis

32h 38m

2 stops

LIS9:20 amLisbon Humberto Delgado

Dec 24

LIS11:00 amLisbon Humberto Delgado

34h 29m

1 stop

STL3:29 pmLambert-St Louis

$447

Find similar

Air Canada

Feb 4

ORD3:35 pmChicago O'Hare Intl

15h 40m

2 stops

OPO1:15 pmPorto

Feb 11

OPO6:00 amPorto

33h 13m

2 stops

ORD9:13 amChicago O'Hare Intl

$483

Find similar

Air Canada

Feb 16

ORD10:35 amChicago O'Hare Intl

16h 45m

2 stops

LIS9:20 amLisbon Humberto Delgado

Feb 24

LIS5:00 amLisbon Humberto Delgado

16h 10m

2 stops

ORD3:10 pmChicago O'Hare Intl

$490

Find similar

Virgin Atlantic flights from Illinois to Portugal

Our best Virgin Atlantic deals on Illinois to Portugal flight tickets

Virgin Atlantic

Dec 8

STL11:40 amLambert-St Louis

14h 20m

2 stops

LIS8:00 amLisbon Humberto Delgado

Dec 24

LIS11:15 amLisbon Humberto Delgado

15h 26m

2 stops

STL8:41 pmLambert-St Louis

$455

Find similar

Virgin Atlantic

Dec 3

ORD10:45 amChicago O'Hare Intl

15h 55m

2 stops

LIS8:40 amLisbon Humberto Delgado

Dec 10

LIS10:00 amLisbon Humberto Delgado

18h 46m

2 stops

ORD10:46 pmChicago O'Hare Intl

$510

Find similar

Virgin Atlantic

Nov 15

ORD1:25 pmChicago O'Hare Intl

12h 35m

2 stops

LIS8:00 amLisbon Humberto Delgado

Nov 22

LIS11:15 amLisbon Humberto Delgado

17h 15m

2 stops

ORD10:30 pmChicago O'Hare Intl

$735

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 12/3

7:10 pm-1:05 pm

1 stop11h 55m

Porto

Sun 12/14

5:00 am-2:45 pm

1 stop15h 45m

$425

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Fri 11/28

8:15 pm-3:55 pm

1 stop13h 40m

Porto

Thu 12/11

8:00 pm-3:25 pm

1 stop25h 25m

$426

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Fri 1/30

10:24 am-3:20 pm

2 stops22h 56m

Funchal Madeira

Sat 2/7

2:35 pm-4:55 pm

2 stops32h 20m

$435

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 12/8

6:42 pm-9:20 am

2 stops32h 38m

Lisbon Humberto Delgado

Wed 12/24

11:00 am-3:29 pm

1 stop34h 29m

$447

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 12/8

11:40 am-8:00 am

2 stops14h 20m

Lisbon Humberto Delgado

Wed 12/24

11:15 am-8:41 pm

2 stops15h 26m

$455

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Fri 1/30

10:24 am-3:20 pm

2 stops22h 56m

Funchal Madeira

Sat 2/7

4:10 pm-4:55 pm

1 stop30h 45m

$458

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 12/8

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 12/24

5:00 am-1:55 pm

1 stop14h 55m

$462

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 1/5

4:20 pm-11:55 am

1 stop13h 35m

Porto

Tue 1/13

12:05 pm-4:20 pm

1 stop34h 15m

$471

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 2/4

3:35 pm-1:15 pm

2 stops15h 40m

Porto

Wed 2/11

6:00 am-9:13 am

2 stops33h 13m

$483

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 12/3

10:45 am-8:40 am

2 stops15h 55m

Lisbon Humberto Delgado

Wed 12/10

10:00 am-10:46 pm

2 stops18h 46m

$510

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 $540, 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 $589.

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 $592. 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 $810.

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 $568. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $802 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 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 $769 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 $706 on momondo.

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

There are 3 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 46% 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	$321
Fastest flight time	7h 55m
Direct flights	Mon, Thu, Sat and Sun
Airports in Portugal	1 airport

The best one-way flight to Portugal from Illinois in the past 72 hours is $321. The best round-trip flight deal from Illinois to Portugal found on momondo in the last 72 hours is $408.

The fastest flight from Illinois to Portugal takes 7h 55m

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

There is 1 airport near Portugal: Lisbon Humberto Delgado (LIS)

Search flight deals

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 November 2025, 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 Dreamliner, representing 19.67% of all bookings. The subsequent popular models are Airbus A330-300 at 17.99%, Airbus A330-900neo at 16.37%, and Boeing 787-8 Dreamliner at 15.38%.

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
Scandinavian Airlines	PriceFrom $369	Free Cancellation	Rating 7.4 1,570 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $425	Free Cancellation	Rating 7.0 574 reviews	Search Icelandair flights
Lufthansa	PriceFrom $441	Free Cancellation	Rating 6.8 7,562 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $468	Free Cancellation	Rating 7.1 2,057 reviews	Search TAP AIR PORTUGAL flights
Air France	PriceFrom $470	Free Cancellation	Rating 7.4 1,486 reviews	Search Air France flights
Iberia	PriceFrom $487	Free Cancellation	Rating 7.0 3,007 reviews	Search Iberia flights
SWISS	PriceFrom $496	Free Cancellation	Rating 7.5 1,781 reviews	Search SWISS flights
Aer Lingus	PriceFrom $497	Free Cancellation	Rating 7.2 1,366 reviews	Search Aer Lingus flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 7,508 reviews	Search British Airways flights
American Airlines	PriceFrom $510	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines 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.

Start using Trips

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Find better results for your trip to Portugal

Popular cities in Portugal

Flights to Lisbonfrom $369

Flights to Portofrom $348

Flights to Funchalfrom $407

Flights to Farofrom $424

Flights to Ponta Delgadafrom $401

Flights to Lajesfrom $473

Flights to Hortafrom $547

Flights to Pico Islandfrom $549

Flights to Porto Santofrom $646

Flights to Velasfrom $557

Cheap flights from Illinois to Portugal from $245

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 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Illinois to Portugal

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

Air Canada flights from Illinois to Portugal

Our best Air Canada deals on Illinois to Portugal flight tickets

Virgin Atlantic flights from Illinois to Portugal

Our best Virgin Atlantic deals on Illinois to Portugal flight tickets

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

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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

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?

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 $568. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $802 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 to Portugal?

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

There are 3 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 46% on your flight if you consider stops on a Illinois to Portugal flight.

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

Scandinavian Airlines is the most popular carrier operating from Illinois to Portugal

What airlines fly to Portugal?

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

As of November 2025, 4 flights take off from Illinois and land in Portugal each week. The most common flight departure day for this route is Fri, with 50% of weekly flights taking off on this day.

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 11h 02m on average, while flying from Peoria to Lisbon is 12h 50m on average. Lisbon is the most popular airport in Portugal.

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

Fastest flight time

Direct flights

Airports in Portugal

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

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

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

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

What is the most popular plane model 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?

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

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

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

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

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