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$353+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — CHI
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
1 adult, Economy
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Cheap 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 June 29, 2026.

This Virgin Atlantic deal was found by Cheapflights users on 6/25. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:00 am
LIS
-
ORD
1 stop13h 34m
Virgin Atlantic
Thu 2/411:10 am
ORD
-
LIS
2 stops14h 50m
Virgin Atlantic
Deal found 6/25$461
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Sat 10/314:55 pm
LIS
-
ORD
1 stop29h 50m
Scandinavian Airlines
Sat 11/77:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 6/28$568
This Virgin Atlantic deal was found by Cheapflights users on 6/25. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:45 pm
LIS
-
ORD
1 stop15h 47m
Virgin Atlantic
Tue 10/2012:15 pm
ORD
-
LIS
2 stops16h 30m
Virgin Atlantic
Deal found 6/25$574
This oojo deal was found by Cheapflights users on 6/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:55 pm
LIS
-
ORD
1 stop29h 50m
Scandinavian Airlines
Sat 11/147:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 6/24$579
This Scandinavian Airlines deal was found by Cheapflights users on 6/24. 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.
Thu 11/125:50 pm
OPO
-
ORD
1 stop28h 55m
Scandinavian Airlines
Mon 11/167:15 pm
ORD
-
OPO
1 stop33h 50m
Scandinavian Airlines
Deal found 6/24$587
This Scandinavian Airlines deal was found by Cheapflights users on 6/24. 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.
Thu 11/124:55 pm
LIS
-
ORD
1 stop29h 50m
Scandinavian Airlines
Mon 11/167:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 6/24$611
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Thu 8/276:10 am
LIS
-
ORD
2 stops19h 55m
Multiple Airlines
Sat 8/297:25 pm
ORD
-
LIS
2 stops20h 30m
Multiple Airlines
Deal found 6/28$639
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Wed 9/22:00 pm
LIS
-
ORD
2 stops29h 20m
Multiple Airlines
Tue 9/87:05 pm
ORD
-
LIS
2 stops22h 35m
Multiple Airlines
Deal found 6/28$642
This Scandinavian Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 10/1010:55 pm
LIS
-
ORD
1 stop23h 15m
Scandinavian Airlines
Mon 2/17:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 6/25$649
This Scandinavian Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 10/310:55 pm
LIS
-
ORD
1 stop23h 15m
Scandinavian Airlines
Fri 10/237:15 pm
ORD
-
LIS
1 stop20h 50m
Scandinavian Airlines
Deal found 6/25$666
This Booking.com deal was found by Cheapflights users on 6/28. 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.
Wed 9/211:50 pm
LIS
-
ORD
1 stop22h 20m
Scandinavian Airlines
Tue 9/87:15 pm
ORD
-
LIS
1 stop22h 00m
Scandinavian Airlines
Deal found 6/28$694
This Scandinavian Airlines deal was found by Cheapflights users on 6/24. 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.
Wed 9/3010:25 am
FAO
-
ORD
2 stops35h 45m
Scandinavian Airlines
Sun 10/47:15 pm
ORD
-
FAO
1 stop32h 25m
Scandinavian Airlines
Deal found 6/24$701

Find flight deals from Portugal to Chicago

Keep the following information in mind while searching for Portugal to Chicago flight deals. Data was last updated June 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$461
(Virgin Atlantic)

One-way from

$353
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,237

Good one-way deal

$646 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Chicago (CHI) flights.
Search Deals
From Portugal to Chicago (CHI)
Search Deals
One-way flight from Portugal to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a one-way flight from Portugal to Chicago (CHI).
Search Deals

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 June 29, 2026.
Use the filters below to find and compare flights from Portugal to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 11/12

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Mon 11/16

7:15 pm-11:05 am

1 stop33h 50m

$587

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 11/12

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Mon 11/16

7:00 am-4:05 pm

2 stops27h 05m

$685

FaroChicago

FAO - ORD

FAOORD

Faro

Wed 9/30

10:25 am-4:10 pm

2 stops35h 45m

Chicago O'Hare Intl

Sun 10/4

7:15 pm-9:40 am

1 stop32h 25m

$702

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

10:40 pm-1:10 pm

2 stops20h 30m

Chicago O'Hare Intl

Tue 9/8

3:00 pm-8:10 am

3 stops35h 10m

$750

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 9/2

11:50 pm-10:44 pm

2 stops28h 54m

Chicago O'Hare Intl

Tue 9/8

7:15 pm-11:15 pm

1 stop22h 00m

$762

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Mon 10/12

6:35 am-4:00 pm

1 stop15h 25m

Chicago O'Hare Intl

Sun 10/18

9:15 pm-5:45 pm

1 stop14h 30m

$787

FaroChicago

FAO - ORD

FAOORD

Faro

Wed 9/30

8:00 pm-6:15 pm

1 stop28h 15m

Chicago O'Hare Intl

Sun 10/4

5:00 pm-12:00 pm

1 stop13h 00m

$788

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 9/17

8:20 am-10:35 pm

2 stops20h 15m

Chicago O'Hare Intl

Wed 9/30

5:50 pm-7:05 pm

1 stop19h 15m

$789

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 9/17

5:00 am-8:30 pm

2 stops21h 30m

Chicago O'Hare Intl

Wed 9/30

6:00 pm-3:25 pm

2 stops15h 25m

$795

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sun 10/4

7:20 am-3:55 pm

1 stop14h 35m

Chicago O'Hare Intl

Sat 10/17

9:15 pm-6:05 pm

1 stop14h 50m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 58 resultsSorted by cheapest first
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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 $429). Flying from Portugal to Chicago in March is currently the most expensive (average of $816). 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 June 29, 2026.

When flying from Portugal to Chicago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from Portugal to Chicago delayed?

About 21% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 128 minutes.

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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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

Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Portugal to Chicago flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 21% of flights being delayed.

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 June 29, 2026.
Read reviews from past customers who have flown 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.
TAP AIR PORTUGAL
7.2
Good
2,306 reviews

Comfort

7.1

Entertainment

6.3

Overall

7.2

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
TAP AIR PORTUGAL
7.2
Good
2,306 reviews
TAP AIR PORTUGAL
7.2
Good
2,306 reviews

Comfort

7.1

Entertainment

6.3

Overall

7.2

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.

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 19h 37m. Fly via Scandinavian Airlines, British Airways, or Delta to get the fastest option. Airlines will cover a distance of 3994 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Portugal to Chicago one-way?

    To fly one-way, consider booking your trip with Finnair, which is currently one of the cheapest options available, starting at $367. American Airlines flights start at $484 while deals on British Airways start at $533 one-way.

  • 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 $699, our data shows the cheapest flight currently is $591. When looking at the most popular route, (Lisbon Humberto Delgado - Chicago O'Hare Intl), you can expect to pay $568 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 $429). Flying from Portugal to Chicago in March is currently the most expensive (average of $816). 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?

Book flights to Chicago if you plan to visit one of these locations
Benton Harbor
Hammond
Lansing
Merrillville
Valparaiso
Porter

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Portugal to Chicago

Discover the top airline 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 June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$665Average$1,205FlexibilityNo cancel feeOn-timeN/A

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