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O'Hare Intl

$353+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
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 1, 2026.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:35 pm
OPO
-
ORD
1 stop29h 10m
Scandinavian Airlines
Sat 11/287:15 pm
ORD
-
OPO
1 stop15h 30m
Scandinavian Airlines
Deal found 7/1$551
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 Scandinavian Airlines deal was found by Cheapflights users on 6/27. 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 6/27$588
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 6/28. 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 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 6/28$704
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:25 am
LIS
-
ORD
1 stop33h 19m
United Airlines
Sat 8/291:30 pm
ORD
-
LIS
2 stops37h 50m
United Airlines
Deal found 6/29$705
This Rumbo 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/274:55 pm
LIS
-
ORD
1 stop29h 50m
Scandinavian Airlines
Wed 12/27:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 6/30$708
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.
Mon 8/249:15 am
OPO
-
ORD
2 stops33h 55m
Multiple Airlines
Sun 9/63:00 pm
ORD
-
OPO
2 stops26h 50m
Multiple Airlines
Deal found 6/28$714
This Mytrip deal was found by Cheapflights users on 6/29. 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.
Mon 8/249:15 am
OPO
-
ORD
2 stops33h 55m
Multiple Airlines
Tue 9/83:00 pm
ORD
-
OPO
2 stops20h 50m
Multiple Airlines
Deal found 6/29$732
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:20 pm
LIS
-
ORD
2 stops32h 00m
Multiple Airlines
Mon 8/317:25 pm
ORD
-
LIS
2 stops17h 30m
Multiple Airlines
Deal found 6/30$732
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:55 pm
OPO
-
ORD
1 stop28h 15m
Scandinavian Airlines
Mon 10/57:15 pm
ORD
-
OPO
1 stop33h 45m
Scandinavian Airlines
Deal found 6/30$735

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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$568
(Kiwi.com)

One-way from

$353
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,083

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 O'Hare Intl
Search Deals
One-way flight from Portugal to Chicago O'Hare Intl
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 July 2026
Search Deals
Price to beat on a one-way flight from Portugal to Chicago O'Hare Intl.
Search Deals

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 1, 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

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

$704

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

9:15 am-1:10 pm

2 stops33h 55m

Chicago O'Hare Intl

Tue 9/8

3:00 pm-12:40 am

3 stops27h 40m

$740

PortoChicago

OPO - ORD

OPOORD

Porto

Wed 8/26

8:10 pm-9:20 pm

2 stops31h 10m

Chicago O'Hare Intl

Sun 8/30

7:25 pm-11:59 pm

3 stops22h 34m

$753

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Tue 10/6

9:15 pm-10:04 pm

2 stops30h 49m

Chicago O'Hare Intl

Wed 11/18

7:15 pm-4:05 pm

1 stop14h 50m

$761

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

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 7/16

12:50 pm-4:00 pm

2 stops33h 10m

Chicago O'Hare Intl

Wed 7/22

7:25 pm-8:20 pm

2 stops18h 55m

$780

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 12/18

6:30 am-5:56 pm

2 stops17h 26m

Chicago O'Hare Intl

Sun 1/10

8:40 pm-9:45 pm

1 stop19h 05m

$832
Quickest round-trip

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 11/12

6:00 am-1:10 pm

1 stop13h 10m

Chicago O'Hare Intl

Mon 11/16

2:00 pm-9:30 am

2 stops13h 30m

$884

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

7:50 am-9:25 pm

2 stops19h 35m

Chicago O'Hare Intl

Sun 8/30

7:25 pm-10:00 pm

2 stops20h 35m

$887

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 8/24

12:10 pm-11:00 am

1 stop28h 50m

Chicago O'Hare Intl

Tue 9/8

10:25 am-6:15 am

1 stop13h 50m

$903

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 48 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 1, 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 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 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 1, 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
2,310 reviews

Crew

7.8

Overall

7.2

Comfort

7.1

Boarding

7.0

Food

6.2

Entertainment

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
2,310 reviews
TAP AIR PORTUGAL
7.2
Good
2,310 reviews

Crew

7.8

Overall

7.2

Comfort

7.1

Boarding

7.0

Food

6.2

Entertainment

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 Scandinavian Airlines, Aer Lingus, and Delta fly from Portugal to Chicago O'Hare Intl Airport in about 13h 30m. The time it takes to get you to your destination can typically vary by up to 15h 25m. The distance from Portugal to Chicago O'Hare Intl Airport is about 4114 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. 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 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 $699, our data indicates the cheapest price to be $591. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $568.

  • 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
Naperville
Lake Geneva
Oak Brook
Gurnee
Delavan
Oakbrook Terrace
Downers Grove
Des Plaines
South Holland
Libertyville
Hoffman Estates
Warrenville
Rockford
Racine
Great Lakes
Northbrook
Waukegan

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

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