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O'Hare Intl

$300+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$415
(Kiwi.com)

One-way from

$300
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$772

Good round-trip deal

$674 or less

Good one-way deal

$665 or less
From Portugal to Chicago O'Hare Intl
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One-way flight from Portugal to Chicago O'Hare Intl
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Highest demand for flights based on searches. 11% potential increase in price ($108 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 September 2025
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Price to beat on a round-trip flight from Portugal to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Portugal to Chicago O'Hare Intl.
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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 September 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. 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.
Wed 11/264:55 pmLIS - ORD
1 stop29h 50mScandinavian Airlines
Thu 12/117:20 pmORD - LIS
1 stop14h 45mScandinavian Airlines
Deal found 9/10$420
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 11/155:10 pmFAO - ORD
1 stop29h 35mScandinavian Airlines
Sun 11/237:20 pmORD - FAO
1 stop32h 40mScandinavian Airlines
Deal found 9/11$420
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 11/155:10 pmFAO - ORD
1 stop29h 35mScandinavian Airlines
Mon 11/247:20 pmORD - FAO
2 stops32h 25mScandinavian Airlines
Deal found 9/11$428
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 11/155:10 pmFAO - ORD
1 stop29h 35mScandinavian Airlines
Fri 11/217:20 pmORD - FAO
1 stop15h 00mScandinavian Airlines
Deal found 9/11$438
This lol.travel deal was found by Cheapflights users on 9/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Thu 11/137:20 pmORD - OPO
1 stop15h 35mScandinavian Airlines
Deal found 9/10$472
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 11/155:10 pmFAO - ORD
1 stop29h 35mScandinavian Airlines
Thu 11/207:20 pmORD - FAO
2 stops40h 45mScandinavian Airlines
Deal found 9/11$480
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 11/156:55 pmFAO - ORD
2 stops27h 50mScandinavian Airlines
Wed 11/197:20 pmORD - FAO
2 stops57h 50mScandinavian Airlines
Deal found 9/11$488
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/227:10 amOPO - ORD
2 stops35h 25mMultiple Airlines
Sun 11/28:25 pmORD - OPO
2 stops20h 35mMultiple Airlines
Deal found 9/11$550
This lol.travel deal was found by Cheapflights users on 9/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:25 amLIS - ORD
Nonstop9h 35mTAP AIR PORTUGAL
Sun 11/168:25 pmORD - LIS
Nonstop7h 55mTAP AIR PORTUGAL
Deal found 9/10$551
This Booking.com deal was found by Cheapflights users on 9/11. 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.
Sat 11/1510:50 amLIS - ORD
1 stop13h 05mAer Lingus
Wed 12/33:50 pmORD - LIS
1 stop12h 20mAer Lingus
Deal found 9/11$555
This oojo deal was found by Cheapflights users on 9/11. 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.
Tue 10/219:15 pmOPO - ORD
1 stop24h 55mTAP AIR PORTUGAL
Sun 11/28:25 pmORD - OPO
1 stop19h 35mTAP AIR PORTUGAL
Deal found 9/11$561
This Mytrip deal was found by Cheapflights users on 9/8. 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.
Fri 10/2411:30 amOPO - ORD
2 stops35h 00mMultiple Airlines
Fri 10/319:15 pmORD - OPO
2 stops19h 10mMultiple Airlines
Deal found 9/8$566

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 September 11, 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

FaroChicago

FAO - ORD

FAOORD

Faro

Sat 11/15

5:10 pm-4:45 pm

1 stop29h 35m

Chicago O'Hare Intl

Sun 11/23

7:20 pm-10:00 am

1 stop32h 40m

$422

FaroChicago

FAO - ORD

FAOORD

Faro

Sat 11/15

5:10 pm-4:45 pm

1 stop29h 35m

Chicago O'Hare Intl

Wed 11/19

7:20 pm-11:10 am

2 stops57h 50m

$429

FaroChicago

FAO - ORD

FAOORD

Faro

Sat 11/15

5:10 pm-4:45 pm

1 stop29h 35m

Chicago O'Hare Intl

Fri 11/21

7:20 pm-4:20 pm

1 stop15h 00m

$439

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 11/14

3:45 pm-4:45 pm

1 stop31h 00m

Chicago O'Hare Intl

Sat 11/22

7:20 pm-4:05 pm

1 stop14h 45m

$466

FaroChicago

FAO - ORD

FAOORD

Faro

Wed 11/12

10:35 am-4:45 pm

2 stops36h 10m

Chicago O'Hare Intl

Sun 11/23

7:20 pm-10:00 am

1 stop32h 40m

$515

FaroChicago

FAO - ORD

FAOORD

Faro

Tue 11/11

10:50 am-4:45 pm

1 stop35h 55m

Chicago O'Hare Intl

Mon 11/24

7:20 pm-9:45 am

2 stops32h 25m

$517

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 11/14

3:45 pm-4:45 pm

1 stop31h 00m

Chicago O'Hare Intl

Fri 11/21

7:20 pm-8:55 am

1 stop31h 35m

$524

FaroChicago

FAO - ORD

FAOORD

Faro

Tue 11/11

10:50 am-4:45 pm

1 stop35h 55m

Chicago O'Hare Intl

Fri 11/21

7:20 pm-4:20 pm

1 stop15h 00m

$526

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 10/15

10:15 pm-2:00 pm

1 stop21h 45m

Chicago O'Hare Intl

Sun 10/19

3:45 pm-10:45 am

1 stop13h 00m

$544

PortoChicago

OPO - ORD

OPOORD

Porto

Wed 10/22

6:00 pm-12:35 pm

1 stop24h 35m

Chicago O'Hare Intl

Sun 11/2

8:25 pm-7:00 pm

1 stop16h 35m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 41 results
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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 September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 24% 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 September 11, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and Aer Lingus 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
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Aer Lingus
7.2
Good
1,271 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
TAP AIR PORTUGAL
7.1
Good
1,977 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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.

  • How long is the flight from Portugal to Chicago O'Hare Intl Airport?

    Airlines like Scandinavian Airlines, Aer Lingus, and TAP AIR PORTUGAL fly from Portugal to Chicago O'Hare Intl Airport in about 21h 45m. The time it takes to get you to your destination can typically vary by up to 7h 50m. The distance from Portugal to Chicago O'Hare Intl Airport is about 3996 mi. This flight may include one or multiple stops.

  • 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 $1,186, our data indicates the cheapest price to be $591. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $420.

  • 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Beloit
Racine
Rockford
Orland Park
Oak Brook
Downers Grove
Naperville
Elk Grove Village
Evanston
Merrillville
Bridgeview
Warrenville

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Alternative routes for Portugal to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Charles de Gaulle to Midway flights
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Istanbul to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Modlin to O'Hare Intl flights
Malpensa to O'Hare Intl flights
Bruxelles-National to Midway flights
Barcelona-El Prat to Midway flights
Vicenza to O'Hare Intl flights
Frankfurt-Hahn to O'Hare Intl flights
Frederic Chopin to Midway flights
Sofia to O'Hare Intl flights
Stansted to O'Hare Intl flights
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Luton to O'Hare Intl flights
Belgrade to O'Hare Intl flights
Munich to Midway flights
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Vicenza to Midway flights
Linate to O'Hare Intl flights
Rzeszow to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Oslo Gardermoen to O'Hare Intl flights
Copenhagen 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$579Average$742FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$580Average$1,209FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$650Average$696FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$716Average$872FlexibilityNo cancel feeOn-time69%

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