HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$332+ Cheap flights from Portugal to O'Hare Intl (ORD)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portugal to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portugal to O'Hare Intl

Keep the following information in mind while searching for Portugal to O'Hare Intl flight deals. Data was last updated July 3, 2025.

Round-trip from

$525
(TAP AIR PORTUGAL)

One-way from

$332
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,005

Good round-trip deal

$886 or less

Good one-way deal

$704 or less
From Portugal to Chicago O'Hare Intl
Search Deals
One-way flight from Portugal to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Portugal to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Portugal to Chicago O'Hare Intl.
Search Deals

Find flight deals from Portugal to O'Hare Intl

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

This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/30. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2110:25 pmOPO - ORD
1 stop23h 45mTAP AIR PORTUGAL
Fri 9/56:00 pmORD - OPO
1 stop19h 00mTAP AIR PORTUGAL
Deal found 6/30$525
This Scandinavian Airlines deal was found by Cheapflights users on 7/2. 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.
Wed 10/111:50 amOPO - ORD
1 stop34h 20mScandinavian Airlines
Thu 10/167:15 pmORD - OPO
1 stop15h 50mScandinavian Airlines
Deal found 7/2$595
This Iberia deal was found by Cheapflights users on 7/2. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2410:10 pmLIS - ORD
1 stop21h 20mIberia
Sun 9/284:30 pmORD - LIS
1 stop17h 35mIberia
Deal found 7/2$648
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:35 amLIS - ORD
1 stop13h 40mAmerican Airlines
Sun 9/2810:35 pmORD - LIS
1 stop13h 20mAmerican Airlines
Deal found 7/1$679
This British Airways deal was found by Cheapflights users on 7/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:55 pmLIS - ORD
1 stop27h 00mBritish Airways
Fri 10/178:35 pmORD - LIS
1 stop20h 35mBritish Airways
Deal found 7/1$694
This Iberia deal was found by Cheapflights users on 7/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:45 amOPO - ORD
2 stops20h 09mIberia
Mon 12/14:45 pmORD - OPO
1 stop13h 00mIberia
Deal found 7/1$695
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:40 amLIS - ORD
2 stops43h 00mMultiple Airlines
Sat 10/185:10 pmORD - LIS
1 stop30h 20mMultiple Airlines
Deal found 7/2$702
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/38:15 amOPO - ORD
1 stop12h 00mAmerican Airlines
Wed 10/1511:47 amORD - OPO
2 stops13h 48mAmerican Airlines
Deal found 7/2$704
This British Airways deal was found by Cheapflights users on 7/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:40 pmOPO - ORD
1 stop21h 10mBritish Airways
Sun 10/1210:35 pmORD - OPO
1 stop15h 45mBritish Airways
Deal found 7/2$719
This oojo deal was found by Cheapflights users on 7/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/46:05 amFAO - ORD
1 stop16h 05mTAP AIR PORTUGAL
Thu 7/106:00 pmORD - FAO
1 stop23h 50mTAP AIR PORTUGAL
Deal found 7/2$746
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:45 pmFAO - ORD
1 stop27h 25mScandinavian Airlines
Fri 8/297:15 pmORD - FAO
1 stop16h 40mScandinavian Airlines
Deal found 7/1$834
This KLM deal was found by Cheapflights users on 7/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:45 pmFAO - ORD
1 stop22h 25mMultiple Airlines
Sat 8/305:10 pmORD - FAO
1 stop18h 30mMultiple Airlines
Deal found 7/3$914

Cheapflights Fare Finder

Customize your flight search to find flights from Portugal to O'Hare Intl 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 July 3, 2025.
Use the filters below to find and compare flights from Portugal to Chicago O'Hare Intl Airport that are best for you.

Fly from

Portugal

Fly to

O'Hare Intl

Route

Depart

Return

Price

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 8/21

10:25 pm-4:10 pm

1 stop23h 45m

Chicago O'Hare Intl

Fri 9/5

6:00 pm-7:00 pm

1 stop19h 00m

$525

PortoChicago

OPO - ORD

OPOORD

Porto

Wed 10/1

11:50 am-4:10 pm

1 stop34h 20m

Chicago O'Hare Intl

Thu 10/16

7:15 pm-5:05 pm

1 stop15h 50m

$595

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 9/24

10:10 pm-1:30 pm

1 stop21h 20m

Chicago O'Hare Intl

Sun 9/28

4:30 pm-4:05 pm

1 stop17h 35m

$648

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Mon 9/15

6:35 am-2:15 pm

1 stop13h 40m

Chicago O'Hare Intl

Sun 9/28

10:35 pm-5:55 pm

1 stop13h 20m

$679

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 10/10

6:55 pm-3:55 pm

1 stop27h 00m

Chicago O'Hare Intl

Fri 10/17

8:35 pm-11:10 pm

1 stop20h 35m

$694

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 11/24

8:45 am-10:54 pm

2 stops20h 09m

Chicago O'Hare Intl

Mon 12/1

4:45 pm-11:45 am

1 stop13h 00m

$695

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 10/2

6:40 am-7:40 pm

2 stops43h 00m

Chicago O'Hare Intl

Sat 10/18

5:10 pm-5:30 am

1 stop30h 20m

$702

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 10/3

8:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Wed 10/15

11:47 am-7:35 am

2 stops13h 48m

$704

PortoChicago

OPO - ORD

OPOORD

Porto

Tue 10/7

8:40 pm-11:50 am

1 stop21h 10m

Chicago O'Hare Intl

Sun 10/12

10:35 pm-8:20 pm

1 stop15h 45m

$719

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 10/6

9:10 pm-2:53 pm

2 stops47h 43m

Chicago O'Hare Intl

Thu 10/16

7:15 pm-5:05 pm

1 stop15h 50m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 34 results
1
2
3
4

Best time to book a flight from Portugal to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport

What is the cheapest month to book a flight from Portugal to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $245). Flying from Portugal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 ORD?

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

Unlike in the morning, when flights are generally more expensive, you can save up to 23% on flights from Portugal to Chicago O'Hare Intl Airport by exploring options for tickets at noon.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Air France from Portugal to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,473 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,845 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What are the cheapest airlines to fly from Portugal to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $561. Aer Lingus flights start at $576 while deals on Turkish Airlines start at $628 one-way.

  • What are the most popular routes from Portugal to Chicago O'Hare Intl Airport?

    When deciding which route to take from Portugal to Chicago O'Hare Intl Airport consider Lisbon Humberto Delgado - Chicago O'Hare Intl, Porto - Chicago O'Hare Intl or Faro - Chicago O'Hare Intl as they are the most popular.

  • What are the cheapest flights from Portugal to Chicago O'Hare Intl Airport?

    Looking for the cheapest flight from Portugal to Chicago O'Hare Intl Airport? While on average our users pay $1,804, our data indicates the cheapest price to be $497. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $630.

  • Can I find deals for flights from Portugal to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Portugal to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to O'Hare Intl?

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

  • Can I find deals for business class flights from Portugal to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Portugal to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $245). Flying from Portugal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 Portugal?

Book flights to Portugal if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
Beloit
Skokie
Des Plaines
Arlington Heights
Elgin
Naperville
Orland Park
Elk Grove Village
Racine
Rockford
Tinley Park
Merrillville
Bridgeview
Glenview
Lake Geneva
Joliet
Waukegan

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portugal to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Frankfurt to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Charles de Gaulle to O'Hare Intl flights
Heathrow to O'Hare Intl flights
Madrid to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Frederic Chopin to Midway flights
Athens to O'Hare Intl flights
Orly to O'Hare Intl flights
Dublin to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Krakow to O'Hare Intl flights
Zurich to O'Hare Intl flights
Malpensa to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Munich to O'Hare Intl flights
Gatwick to O'Hare Intl flights
Heathrow to Midway flights
Charles de Gaulle to Midway flights
London City to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Vienna to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Modlin to O'Hare Intl flights
Madrid to Midway flights
Barcelona-El Prat to Midway flights
Istanbul to Midway flights
Berlin to O'Hare Intl flights
Bruxelles-National to Midway flights
Frankfurt-Hahn to O'Hare Intl flights
Lyon to O'Hare Intl flights
Amsterdam to Midway flights
Stansted to O'Hare Intl flights
Sofia to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to Midway flights
Sabiha Gokcen to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Luton to O'Hare Intl flights
Copenhagen to O'Hare Intl flights
Vicenza to O'Hare Intl flights
Otopeni Intl to O'Hare Intl flights
Bergamo to O'Hare Intl flights

Top 4 airlines flying from Portugal to O'Hare Intl

Discover the top 4 airlines that operate flights from Portugal to O'Hare Intl. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$497Average$1,230FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$579Average$713FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$650Average$696FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$733Average$886FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.