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O'Hare Intl

$374+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Aug 12 — Aug 191
Wed 8/12
Wed 8/19
1 adult, Economy
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Cheap 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 13, 2026.

This Mytrip deal was found by Cheapflights users on 7/12. 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 9/39:10 am
LIS
-
ORD
2 stops33h 25m
Multiple Airlines
Wed 9/164:05 pm
ORD
-
LIS
2 stops22h 30m
Multiple Airlines
Deal found 7/12$579
This deal was found by Cheapflights users on 7/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2012:20 pm
LIS
-
ORD
1 stop12h 13m
United Airlines
Fri 1/13:45 pm
ORD
-
LIS
1 stop10h 25m
United Airlines
Deal found 7/9$588
This Mytrip deal was found by Cheapflights users on 7/11. 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 8/197:10 am
OPO
-
ORD
2 stops35h 30m
Multiple Airlines
Wed 8/264:40 pm
ORD
-
OPO
2 stops25h 10m
Multiple Airlines
Deal found 7/11$603
This Mytrip deal was found by Cheapflights users on 7/9. 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 9/38:40 pm
OPO
-
ORD
2 stops25h 20m
Multiple Airlines
Thu 9/176:00 pm
ORD
-
OPO
2 stops23h 55m
Multiple Airlines
Deal found 7/9$604
This Justfly.com deal was found by Cheapflights users on 7/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:55 pm
LIS
-
ORD
1 stop29h 50m
Scandinavian Airlines
Wed 11/187:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 7/10$609
This Gotogate deal was found by Cheapflights users on 7/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
OPO
-
ORD
1 stop19h 55m
Lufthansa
Sun 9/610:30 pm
ORD
-
OPO
1 stop18h 25m
Lufthansa
Deal found 7/12$610
This Gotogate deal was found by Cheapflights users on 7/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:05 am
LIS
-
ORD
1 stop20h 50m
Lufthansa
Sun 10/2511:35 pm
ORD
-
LIS
1 stop18h 15m
Lufthansa
Deal found 7/9$613
This Mytrip deal was found by Cheapflights users on 7/12. 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 10/112:15 pm
OPO
-
ORD
1 stop30h 20m
SWISS
Wed 10/147:05 pm
ORD
-
OPO
1 stop17h 25m
SWISS
Deal found 7/12$615
This Gotogate deal was found by Cheapflights users on 7/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:05 am
LIS
-
ORD
1 stop13h 50m
Lufthansa
Wed 9/1610:30 pm
ORD
-
LIS
1 stop17h 45m
Lufthansa
Deal found 7/12$616
This Gotogate deal was found by Cheapflights users on 7/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:55 am
LIS
-
ORD
1 stop16h 00m
SWISS
Fri 9/187:05 pm
ORD
-
LIS
1 stop22h 20m
SWISS
Deal found 7/10$620
This Gotogate deal was found by Cheapflights users on 7/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:25 pm
LIS
-
ORD
1 stop13h 40m
Lufthansa
Sun 11/14:20 pm
ORD
-
LIS
1 stop16h 35m
Lufthansa
Deal found 7/9$621
This Flighttix deal was found by Cheapflights users on 7/12. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
OPO
-
ORD
1 stop19h 55m
Multiple Airlines
Sun 9/67:48 pm
ORD
-
OPO
2 stops29h 12m
Multiple Airlines
Deal found 7/12$623

Find 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 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$579
(Mytrip)

One-way from

$374
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,013

Good round-trip deal

$1,083 or less

Good one-way deal

$641 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 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. 10% potential increase in price ($112 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 July 2026
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.
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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 13, 2026.
Use the filters below to find and compare flights from Portugal to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

6:00 am-7:55 pm

1 stop19h 55m

Chicago O'Hare Intl

Sun 9/6

7:48 pm-7:00 am

2 stops29h 12m

$629

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

6:00 am-7:55 pm

1 stop19h 55m

Chicago O'Hare Intl

Sun 9/6

8:40 am-6:55 am

1 stop16h 15m

$632

PortoChicago

OPO - ORD

OPOORD

Porto

Wed 9/2

12:00 pm-7:55 pm

1 stop13h 55m

Chicago O'Hare Intl

Tue 9/15

5:00 am-6:15 am

1 stop19h 15m

$633

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 8/7

6:00 am-2:55 pm

1 stop14h 55m

Chicago O'Hare Intl

Fri 8/21

12:16 pm-9:45 am

1 stop15h 29m

$633

PortoChicago

OPO - ORD

OPOORD

Porto

Tue 9/1

12:05 pm-7:55 pm

1 stop13h 50m

Chicago O'Hare Intl

Wed 9/16

5:00 am-6:55 am

1 stop19h 55m

$633

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 9/4

6:00 am-6:39 pm

2 stops18h 39m

Chicago O'Hare Intl

Tue 9/15

7:05 am-6:15 am

1 stop17h 10m

$638

PortoChicago

OPO - ORD

OPOORD

Porto

Wed 8/26

6:00 am-6:39 pm

2 stops18h 39m

Chicago O'Hare Intl

Wed 9/2

11:05 am-7:00 am

1 stop13h 55m

$641

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Tue 8/4

5:05 am-2:55 pm

1 stop15h 50m

Chicago O'Hare Intl

Mon 8/31

3:00 pm-10:30 am

1 stop13h 30m

$641

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 8/26

5:05 am-12:55 pm

1 stop13h 50m

Chicago O'Hare Intl

Sun 8/30

9:05 am-9:20 am

2 stops18h 15m

$643

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

7:20 pm-12:35 pm

1 stop23h 15m

Chicago O'Hare Intl

Sun 9/6

2:20 pm-1:45 pm

2 stops17h 25m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 47 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $473). Flying from Portugal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $880). 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 13, 2026.

When flying from Portugal to Chicago O'Hare Intl Airport, 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 22% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 129 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 22% of flights being delayed.

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 13, 2026.
Get a feel of what it's like to fly with TAP AIR PORTUGAL 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.
TAP AIR PORTUGAL
7.2
Good
2,336 reviews

Comfort

7.1

Overall

7.2

Crew

7.8

Boarding

7.0

Entertainment

6.3

Food

6.3

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
2,336 reviews
TAP AIR PORTUGAL
7.2
Good
2,336 reviews

Comfort

7.1

Overall

7.2

Crew

7.8

Boarding

7.0

Entertainment

6.3

Food

6.3

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 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 Lufthansa, United Airlines, and SWISS fly from Portugal to Chicago O'Hare Intl Airport in about 15h 50m. The time it takes to get you to your destination can typically vary by up to 7h 40m. 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 cheapest airlines to fly from Portugal to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Finnair, which is currently one of the cheapest options available, starting at $367. Iberia flights start at $484 while deals on American Airlines start at $488 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 $945, our data indicates the cheapest price to be $599. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $579.

  • 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, February is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $473). Flying from Portugal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $880). 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
Benton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Gurnee
Delavan
Oakbrook Terrace
South Holland
Libertyville
Hoffman Estates
Downers Grove
Rockford
Racine
Great Lakes
Joliet
Orland Park
Northbrook
Waukegan

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Portugal to O'Hare Intl

Discover the top airline 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 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$748Average$1,205FlexibilityNo cancel feeOn-timeN/A

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