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 Chicago 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 18 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 Chicago to Portugal?

Scandinavian Airlines, TAP AIR PORTUGAL, and KLM are the most popular carriers operating from Chicago to Portugal

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

How often are flights from Chicago to Portugal delayed?

Historically, on average around 43% of flights between Chicago and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 139 minutes.

Which airline has the best punctuality record on Chicago to Portugal 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 42% of their flights experiencing any sort of delay.

What is the most punctual flight time for Chicago to Portugal flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

Prices for flights from Chicago to Portugal refresh daily.

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

As of December 2025, there are 18 operators available to choose from for flights from Chicago to Portugal.

How old do you have to be to fly from Chicago 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 Chicago 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.

$227 Cheap Flights from Chicago to Portugal in 2025/26

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Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:10 pm - 6:00 pm

ORD

OPO

16h 50m1 stop

8:00 pm - 2:45 pm

OPO

ORD

24h 45m1 stop

$428TAP AIR PORTUGAL

Wed, Jan 14 - Sat, Jan 24

8:15 pm - 12:30 am

ORD

OPO

22h 15m1 stop

6:00 pm - 3:25 pm

OPO

ORD

27h 25m1 stop

$438TAP AIR PORTUGAL

Fri, Jan 16 - Thu, Jan 29

8:25 pm - 3:20 pm

ORD

OPO

12h 55m1 stop

8:00 pm - 2:45 pm

OPO

ORD

24h 45m1 stop

$440TAP AIR PORTUGAL

Sun, Feb 8 - Sat, Feb 14

5:53 pm - 5:30 pm

ORD

LIS

17h 37m2 stops

5:00 am - 4:43 pm

LIS

ORD

16h 43m2 stops

$500Delta

Wed, Mar 4 - Tue, Mar 10

6:40 pm - 5:30 pm

MDW

LIS

16h 50m2 stops

5:00 am - 5:55 pm

LIS

MDW

17h 55m2 stops

$500Delta

Wed, Mar 4 - Tue, Mar 10

2:37 pm - 8:10 am

ORD

LIS

11h 33m1 stop

10:15 am - 4:56 pm

LIS

ORD

12h 41m1 stop

$502United Airlines

Mon, Jan 5 - Tue, Jan 13

3:53 pm - 8:10 am

ORD

LIS

10h 17m1 stop

5:00 am - 11:10 am

LIS

ORD

36h 10m1 stop

$504United Airlines

Mon, Jan 5 - Mon, Jan 12

5:10 pm - 5:30 pm

ORD

FAO

18h 20m2 stops

7:40 pm - 7:45 pm

FAO

ORD

29h 05m1 stop

$601American Airlines

Wed, Jan 14 - Thu, Mar 12

5:10 pm - 5:30 pm

ORD

FAO

18h 20m2 stops

7:40 pm - 6:05 pm

FAO

ORD

27h 25m2 stops

$611American Airlines

Wed, Jan 14 - Thu, Mar 12

7:22 pm - 5:20 pm

ORD

FAO

40h 58m2 stops

11:30 am - 1:10 pm

FAO

ORD

31h 40m2 stops

$614British Airways

Sat, Mar 21 - Tue, Mar 31

Scandinavian Airlines flights from Chicago to Portugal

Our best Scandinavian Airlines deals on Chicago to Portugal flight tickets

Scandinavian Airlines

Feb 13

ORD7:20 pmChicago O'Hare Intl

14h 00m

1 stop

FNC3:20 pmFunchal Madeira

Feb 28

FNC4:10 pmFunchal Madeira

30h 35m

1 stop

ORD4:45 pmChicago O'Hare Intl

$482

Find similar

Scandinavian Airlines

Jan 30

ORD7:10 pmChicago O'Hare Intl

15h 10m

1 stop

FAO4:20 pmFaro

Feb 3

FAO11:40 amFaro

35h 05m

1 stop

ORD4:45 pmChicago O'Hare Intl

$500

Find similar

Scandinavian Airlines

Jan 26

ORD6:59 pmChicago O'Hare Intl

38h 41m

2 stops

LIS3:40 pmLisbon Humberto Delgado

Jan 30

LIS4:40 pmLisbon Humberto Delgado

30h 05m

1 stop

ORD4:45 pmChicago O'Hare Intl

$512

Find similar

Air Canada flights from Chicago to Portugal

Our best Air Canada deals on Chicago to Portugal flight tickets

Air Canada

Jan 13

ORD12:50 pmChicago O'Hare Intl

17h 15m

2 stops

OPO12:05 pmPorto

Jan 27

OPO6:00 amPorto

33h 13m

2 stops

ORD9:13 amChicago O'Hare Intl

$490

Find similar

Air Canada

Jan 31

ORD8:45 pmChicago O'Hare Intl

30h 35m

1 stop

LIS9:20 amLisbon Humberto Delgado

Feb 14

LIS11:20 amLisbon Humberto Delgado

26h 41m

2 stops

ORD8:01 amChicago O'Hare Intl

$526

Find similar

Air Canada

Jan 28

ORD3:55 pmChicago O'Hare Intl

11h 25m

1 stop

LIS9:20 amLisbon Humberto Delgado

Feb 1

LIS10:50 amLisbon Humberto Delgado

38h 05m

2 stops

ORD6:55 pmChicago O'Hare Intl

$529

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 1/14

7:10 pm-6:00 pm

1 stop16h 50m

Porto

Sat 1/24

8:00 pm-2:45 pm

1 stop24h 45m

$428

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Fri 1/16

8:15 pm-12:30 am

1 stop22h 15m

Porto

Thu 1/29

6:00 pm-3:25 pm

1 stop27h 25m

$438

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 2/8

8:25 pm-3:20 pm

1 stop12h 55m

Porto

Sat 2/14

8:00 pm-2:45 pm

1 stop24h 45m

$440

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 3/4

5:53 pm-5:30 pm

2 stops17h 37m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-4:43 pm

2 stops16h 43m

$500

ChicagoLisbon

MDW - LIS

MDWLIS

Chicago Midway

Wed 3/4

6:40 pm-5:30 pm

2 stops16h 50m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-5:55 pm

2 stops17h 55m

$500

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Mon 1/5

2:37 pm-8:10 am

1 stop11h 33m

Lisbon Humberto Delgado

Tue 1/13

10:15 am-4:56 pm

1 stop12h 41m

$502

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Mon 1/5

3:53 pm-8:10 am

1 stop10h 17m

Lisbon Humberto Delgado

Mon 1/12

5:00 am-11:10 am

1 stop36h 10m

$504

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Wed 1/14

5:10 pm-5:30 pm

2 stops18h 20m

Faro

Thu 3/12

7:40 pm-7:45 pm

1 stop29h 05m

$601

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Wed 1/14

5:10 pm-5:30 pm

2 stops18h 20m

Faro

Thu 3/12

7:40 pm-6:05 pm

2 stops27h 25m

$611

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Sat 3/21

7:22 pm-5:20 pm

2 stops40h 58m

Faro

Tue 3/31

11:30 am-1:10 pm

2 stops31h 40m

$614

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 Chicago 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

Delays

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Chicago is in February. Flight prices, which tend to average around $550, 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 Chicago during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $567.

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 Chicago. The lowest ticket price found for a Wednesday departure recently was $588. 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 Chicago to Portugal during this time can be as low as $572. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $798 per ticket.

What is the cheapest Chicago to Portugal flight route?

Fly from Chicago O'Hare Intl to Lisbon Humberto Delgado for the best Chicago - 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 Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $770 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Chicago for as low as $695 on momondo.

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

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

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

Cheap Chicago to Portugal flight deals and tips

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

Best Price Found	$387
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 Chicago in the past 72 hours is $387. The best round-trip flight deal from Chicago to Portugal found on momondo in the last 72 hours is $439.

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

Direct flights go from Chicago 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 Chicago to Portugal?
Prices for flights from Chicago to Portugal refresh daily.
How many operators does momondo search for flights from Chicago to Portugal?
As of December 2025, there are 18 operators available to choose from for flights from Chicago to Portugal.
How old do you have to be to fly from Chicago 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 Chicago 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 Chicago to Portugal?
momondo data reveals that the most frequently booked plane model on the route from Chicago to Portugal is Boeing 787 Dreamliner, representing 22.10% of all bookings. The subsequent popular models are Airbus A330-300 at 18.26%, Boeing 787-8 Dreamliner at 16.00%, and Airbus A330 at 11.89%.

Best airlines flying from Chicago to Portugal

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

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $369	Free Cancellation	Rating 7.4 1,603 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $396	Free Cancellation	Rating 7.0 588 reviews	Search Icelandair flights
Lufthansa	PriceFrom $441	Free Cancellation	Rating 6.8 7,619 reviews	Search Lufthansa flights
Air France	PriceFrom $470	Free Cancellation	Rating 7.4 1,502 reviews	Search Air France flights
TAP AIR PORTUGAL	PriceFrom $480	Free Cancellation	Rating 7.1 2,086 reviews	Search TAP AIR PORTUGAL flights
Iberia	PriceFrom $488	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
SWISS	PriceFrom $489	Free Cancellation	Rating 7.5 1,808 reviews	Search SWISS flights
Aer Lingus	PriceFrom $494	Free Cancellation	Rating 7.2 1,391 reviews	Search Aer Lingus flights
Virgin Atlantic	PriceFrom $503	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 7,573 reviews	Search British Airways flights

Why use momondo?

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

Finding the right flight to Portugal from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portugal quick and easy, saving you time and money.

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

All flight searches from Chicago to Portugal on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Chicago and Portugal 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 Chicago 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 Chicago 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 $364

Flights to Portofrom $332

Flights to Funchalfrom $415

Flights to Farofrom $404

Flights to Ponta Delgadafrom $402

Flights to Lajesfrom $503

Flights to Hortafrom $576

Flights to Pico Islandfrom $562

Flights to Porto Santofrom $801

Flights to Velasfrom $581

Cheap flights from Chicago to Portugal from $227

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Portugal departing on 3/2. 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 Chicago to Portugal

Cheap round-trip flights

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Cheap last minute flights

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Scandinavian Airlines flights from Chicago to Portugal

Our best Scandinavian Airlines deals on Chicago to Portugal flight tickets

Air Canada flights from Chicago to Portugal

Our best Air Canada deals on Chicago to Portugal flight tickets

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

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How to get the cheapest flight ticket from Chicago 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 Chicago to Portugal during this time can be as low as $572. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $798 per ticket.

What is the cheapest Chicago to Portugal flight route?

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

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

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

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

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

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

Scandinavian Airlines, TAP AIR PORTUGAL, and KLM are the most popular carriers operating from Chicago to Portugal

What airlines fly to Portugal?

How often are flights from Chicago to Portugal delayed?

Historically, on average around 43% of flights between Chicago and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 139 minutes.

What is the most punctual flight time for Chicago to Portugal flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to Portugal 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 42% of their flights experiencing any sort of delay.

Cheap Chicago to Portugal flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Portugal

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

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

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

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

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

Best airlines flying from Chicago to Portugal

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Chicago 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