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$301+ Cheap flights from Portugal to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — CHI
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
1 adult, Economy
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Cheap flight deals from Portugal to Chicago

Keep the following information in mind while searching for Portugal to Chicago flight deals. Data was last updated noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$436
(oojo)

One-way from

$301
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$723

Good one-way deal

$634 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Chicago (CHI) flights.
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From Portugal to Chicago (CHI)
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One-way flight from Portugal to Chicago (CHI)
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Highest demand for flights based on searches. 10% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a one-way flight from Portugal to Chicago (CHI).
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Find flight deals from Portugal to Chicago

Cheapest flights from Portugal to Chicago
Explore the most affordable flight options available from Portugal to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 3, 2025.

This FlightHub deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/264:55 pmLIS - ORD
1 stop29h 50mScandinavian Airlines
jue. 12/117:20 pmORD - LIS
1 stop14h 45mScandinavian Airlines
Deal found 11/2$457
This Trip.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/215:35 pmOPO - ORD
1 stop29h 10mScandinavian Airlines
dom. 12/77:20 pmORD - OPO
1 stop15h 25mScandinavian Airlines
Deal found 11/1$459
This Mytrip deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/2010:50 amLIS - ORD
1 stop13h 05mAer Lingus
mié. 12/33:50 pmORD - LIS
1 stop12h 20mAer Lingus
Deal found 11/2$565
This Booking.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/233:55 pmLIS - ORD
1 stop30h 50mScandinavian Airlines
dom. 12/77:20 pmORD - LIS
2 stops44h 40mScandinavian Airlines
Deal found 11/3$568
This Trip.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/124:55 pmLIS - ORD
1 stop29h 50mScandinavian Airlines
dom. 12/287:20 pmORD - LIS
1 stop14h 45mScandinavian Airlines
Deal found 11/2$580
This Mytrip deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/188:55 pmLIS - ORD
1 stop23h 05mMultiple Airlines
mar. 11/257:40 pmORD - LIS
1 stop11h 25mMultiple Airlines
Deal found 11/2$591
This Scandinavian Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/264:55 pmLIS - ORD
1 stop29h 50mScandinavian Airlines
jue. 1/87:20 pmORD - LIS
1 stop14h 30mScandinavian Airlines
Deal found 11/2$598
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/219:00 amOPO - ORD
1 stop12h 25mTAP AIR PORTUGAL
dom. 12/78:25 pmORD - OPO
1 stop29h 35mTAP AIR PORTUGAL
Deal found 11/1$606
This Booking.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1810:50 amLIS - ORD
1 stop13h 05mAer Lingus
mié. 12/103:50 pmORD - LIS
1 stop12h 20mAer Lingus
Deal found 11/2$619
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/139:55 pmOPO - ORD
3 stops28h 05mMultiple Airlines
lun. 11/173:55 pmORD - OPO
3 stops24h 25mMultiple Airlines
Deal found 11/1$711
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/213:55 pmOPO - ORD
2 stops32h 00mMultiple Airlines
dom. 12/77:40 pmORD - OPO
2 stops32h 50mMultiple Airlines
Deal found 11/1$757
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/135:00 amLIS - MDW
2 stops19h 08mDelta
mié. 12/101:14 pmMDW - LIS
2 stops16h 06mDelta
Deal found 11/2$785

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 3, 2025.
Use the filters below to find and compare flights from Portugal to Chicago that are best for you.

Fly from

Portugal

Fly to

Chicago

Route

Depart

Return

Price

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

dom. 2/8

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

jue. 2/12

7:20 pm-3:50 pm

1 stop14h 30m

$460

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

dom. 2/8

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

sáb. 2/14

7:20 pm-4:05 pm

1 stop14h 45m

$460

PortoChicago

OPO - ORD

OPOORD

Porto

vie. 11/21

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

dom. 12/7

7:20 pm-4:45 pm

1 stop15h 25m

$526

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

dom. 2/8

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

vie. 2/13

7:20 pm-8:55 am

1 stop31h 35m

$535

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

lun. 2/9

8:05 am-4:45 pm

2 stops62h 40m

Chicago O'Hare Intl

jue. 2/12

7:20 pm-3:50 pm

1 stop14h 30m

$542

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

dom. 2/8

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

mié. 2/11

7:20 pm-9:35 pm

1 stop20h 15m

$555

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

lun. 2/2

6:10 pm-10:29 pm

2 stops34h 19m

Chicago O'Hare Intl

mar. 2/17

7:30 am-4:05 pm

2 stops26h 35m

$604

PortoChicago

OPO - ORD

OPOORD

Porto

vie. 11/21

9:00 am-3:25 pm

1 stop12h 25m

Chicago O'Hare Intl

dom. 12/7

8:25 pm-8:00 am

1 stop29h 35m

$606

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

sáb. 12/27

6:55 pm-4:45 pm

1 stop27h 50m

Chicago O'Hare Intl

jue. 1/8

7:20 pm-3:50 pm

1 stop14h 30m

$708

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 11/13

9:55 pm-8:00 pm

3 stops28h 05m

Chicago O'Hare Intl

lun. 11/17

3:55 pm-10:20 pm

3 stops24h 25m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 60 results
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Best time to book a flight from Portugal to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Portugal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Chicago

What is the cheapest month to book a flight from Portugal to Chicago?

Currently, November is the cheapest month in which you can book a flight from Portugal to Chicago (average of $518). Flying from Portugal to Chicago in February is currently the most expensive (average of $900). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PT to CHI?

Find hourly flight availability from Portugal to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 3, 2025.

It’s optimal to fly from Portugal to Chicago in the evening. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated noviembre 3, 2025.
Read reviews from past customers who have flown American Airlines, Aer Lingus, and TAP AIR PORTUGAL from Portugal to Chicago. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,036 reviews

Crew

8.0

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
American Airlines
7.2
Good
11,036 reviews
American Airlines
7.2
Good
11,036 reviews

Crew

8.0

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
Aer Lingus
7.2
Good
1,365 reviews
American Airlines
7.2
Good
11,036 reviews

Crew

8.0

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
TAP AIR PORTUGAL
7.1
Good
2,046 reviews
American Airlines
7.2
Good
11,036 reviews

Crew

8.0

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portugal to Chicago?

    There are many flights that can get you from Portugal to Chicago in 12h 25m. Fly via Scandinavian Airlines, TAP AIR PORTUGAL, or British Airways to get the fastest option. Airlines will cover a distance of 3931 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Portugal to Chicago?

    Most travelers choose Lisbon Humberto Delgado - Chicago O'Hare Intl, Lisbon Humberto Delgado - Chicago Midway or Porto - Chicago O'Hare Intl when deciding on the best route from Portugal to Chicago.

  • What are the cheapest flights from Portugal to Chicago?

    While on average a flight from Portugal to Chicago is generally $809, our data shows the cheapest flight currently is $559. When looking at the most popular route, (Lisbon Humberto Delgado - Chicago O'Hare Intl), you can expect to pay $436 for that flight.

  • Can I find deals for flights from Portugal to Chicago that include hotel bookings?

    Yes. In addition to deals on Portugal to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Chicago.

  • Can I find deals for business class flights from Portugal to Chicago?

    Yes. Cheapflights offers flight deals from Portugal to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portugal to Chicago?

    Currently, November is the cheapest month in which you can book a flight from Portugal to Chicago (average of $518). Flying from Portugal to Chicago in February is currently the most expensive (average of $900). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago?

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Alternative routes for Portugal to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Portugal to Chicago

Discover the top 5 airlines that operate flights from Portugal to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$579Average$759FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$580Average$1,209FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$650Average$696FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$653Average$740FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$733Average$872FlexibilityNo cancel feeOn-time69%

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