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O'Hare Intl

$424+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
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 May 11, 2026.

This United Airlines deal was found by Cheapflights users on 5/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:55 am
OPO
-
ORD
1 stop32h 55m
United Airlines
Mon 6/87:10 am
ORD
-
OPO
1 stop17h 45m
United Airlines
Deal found 5/9$540
This United Airlines deal was found by Cheapflights users on 5/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2011:55 am
OPO
-
ORD
1 stop28h 24m
United Airlines
Sun 6/214:05 pm
ORD
-
OPO
1 stop17h 35m
United Airlines
Deal found 5/10$546
This Scandinavian Airlines deal was found by Cheapflights users on 5/6. 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.
Tue 11/244:55 pm
LIS
-
ORD
1 stop29h 50m
Scandinavian Airlines
Sat 11/287:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/6$647
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Wed 11/1111:55 am
OPO
-
ORD
1 stop34h 50m
Scandinavian Airlines
Thu 11/197:15 pm
ORD
-
OPO
1 stop15h 40m
Scandinavian Airlines
Deal found 5/6$672
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Fri 10/166:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Mon 11/26:30 pm
ORD
-
LIS
2 stops21h 35m
Multiple Airlines
Deal found 5/6$698
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Fri 10/166:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Sun 11/16:30 pm
ORD
-
LIS
2 stops20h 35m
Multiple Airlines
Deal found 5/6$703
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Fri 10/166:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Tue 11/36:30 pm
ORD
-
LIS
2 stops19h 20m
Multiple Airlines
Deal found 5/6$708
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 10/176:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Sun 11/16:30 pm
ORD
-
LIS
2 stops20h 35m
Multiple Airlines
Deal found 5/6$743
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 10/176:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Tue 11/36:30 pm
ORD
-
LIS
2 stops19h 20m
Multiple Airlines
Deal found 5/6$748
This FlightHub deal was found by Cheapflights users on 5/6. 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.
Wed 10/144:25 pm
LIS
-
ORD
1 stop29h 45m
Scandinavian Airlines
Sat 10/318:15 pm
ORD
-
LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/6$755
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 10/106:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Sun 10/257:30 pm
ORD
-
LIS
2 stops20h 35m
Multiple Airlines
Deal found 5/6$756
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Fri 10/166:35 am
LIS
-
ORD
1 stop13h 50m
Multiple Airlines
Wed 10/288:40 pm
ORD
-
LIS
1 stop18h 15m
Multiple Airlines
Deal found 5/6$762

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 May 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$540
(United Airlines)

One-way from

$424
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$834

Good one-way deal

$648 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
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 11, 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

Sat 6/20

11:55 am-10:19 am

1 stop28h 24m

Chicago O'Hare Intl

Sun 6/21

4:05 pm-3:40 pm

1 stop17h 35m

$546

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 10/8

5:05 am-12:40 pm

1 stop13h 35m

Chicago O'Hare Intl

Sun 10/11

6:00 pm-8:35 pm

1 stop20h 35m

$787

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 5/21

12:50 pm-4:00 pm

2 stops33h 10m

Chicago O'Hare Intl

Mon 5/25

9:55 am-11:30 pm

2 stops31h 35m

$841

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 7/15

1:35 pm-7:50 pm

1 stop36h 15m

Chicago O'Hare Intl

Fri 7/24

9:50 pm-9:40 am

1 stop29h 50m

$894

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 9/11

6:00 am-7:55 pm

1 stop19h 55m

Chicago O'Hare Intl

Tue 9/15

10:00 am-6:15 am

2 stops14h 15m

$909

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 6/4

6:00 am-2:55 pm

1 stop14h 55m

Chicago O'Hare Intl

Wed 6/10

7:10 am-6:55 am

1 stop17h 45m

$909

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 5/21

5:00 am-2:15 pm

1 stop15h 15m

Chicago O'Hare Intl

Fri 6/5

6:30 pm-3:25 pm

2 stops14h 55m

$915

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 10/7

5:05 am-12:55 pm

1 stop13h 50m

Chicago O'Hare Intl

Sun 10/11

3:35 pm-1:40 pm

1 stop16h 05m

$916

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 5/21

4:20 pm-2:15 pm

1 stop27h 55m

Chicago O'Hare Intl

Fri 6/5

4:20 pm-10:15 pm

1 stop23h 55m

$918

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 5/22

5:00 am-2:15 pm

1 stop15h 15m

Chicago O'Hare Intl

Tue 5/26

5:41 pm-3:25 pm

2 stops15h 44m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 50 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 May 11, 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 24% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 127 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 24% 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 May 11, 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
2,250 reviews

Comfort

7.1

Overall

7.2

Boarding

7.0

Food

6.2

Entertainment

6.3

Crew

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification
TAP AIR PORTUGAL
7.2
Good
2,250 reviews
TAP AIR PORTUGAL
7.2
Good
2,250 reviews

Comfort

7.1

Overall

7.2

Boarding

7.0

Food

6.2

Entertainment

6.3

Crew

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification

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 United Airlines, TAP AIR PORTUGAL, and LOT fly from Portugal to Chicago O'Hare Intl Airport in about 13h 35m. The time it takes to get you to your destination can typically vary by up to 22h 40m. The distance from Portugal to Chicago O'Hare Intl Airport is about 3931 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 $484 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 $653, our data indicates the cheapest price to be $586. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $806.

  • 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
Rosemont
Schaumburg
Naperville
Benton Harbor
Delavan
Oakbrook Terrace
Lake Geneva
Gurnee
Downers Grove
Des Plaines
Hoffman Estates
Oak Brook
South Holland
Libertyville
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Arlington Heights
Northbrook

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 May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$665Average$1,209FlexibilityNo cancel feeOn-timeN/A

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