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$231+ Cheap flights from O'Hare Intl (ORD) to Portugal

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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Portugal

Cheapest flights from O'Hare Intl to Portugal
Explore the most affordable flight options available from O'Hare Intl to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 31, 2025.

This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:37 pmORD - LIS
2 stops13h 38mUnited Airlines
Wed 1/145:00 amLIS - ORD
1 stop16h 20mUnited Airlines
Deal found 12/30$489
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:37 pmORD - LIS
2 stops31h 18mUnited Airlines
Wed 1/145:00 amLIS - ORD
1 stop16h 20mUnited Airlines
Deal found 12/30$491
This Air Canada deal was found by Cheapflights users on 12/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:30 pmORD - LIS
1 stop30h 25mAir Canada
Fri 1/1611:20 amLIS - ORD
2 stops34h 46mAir Canada
Deal found 12/30$492
This Air Canada deal was found by Cheapflights users on 12/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:35 amORD - LIS
2 stops16h 20mAir Canada
Wed 1/145:00 amLIS - ORD
2 stops18h 48mAir Canada
Deal found 12/30$496
This KAYAK deal was found by Cheapflights users on 12/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:50 pmORD - LIS
2 stops35h 55mSWISS
Thu 1/1512:35 pmLIS - ORD
1 stop33h 45mSWISS
Deal found 12/30$499
This Air Canada deal was found by Cheapflights users on 12/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 amORD - LIS
2 stops19h 50mAir Canada
Tue 1/1311:20 amLIS - ORD
2 stops26h 45mAir Canada
Deal found 12/30$505
This KAYAK deal was found by Cheapflights users on 12/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:50 pmORD - LIS
2 stops35h 55mSWISS
Tue 1/133:25 pmLIS - ORD
2 stops28h 45mSWISS
Deal found 12/30$519
This KLM deal was found by Cheapflights users on 12/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amORD - LIS
1 stop18h 40mKLM
Sat 1/175:00 amLIS - ORD
1 stop15h 20mKLM
Deal found 12/30$537
This Air Canada deal was found by Cheapflights users on 12/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:30 pmORD - LIS
1 stop30h 25mAir Canada
Sun 1/185:00 amLIS - ORD
2 stops16h 10mAir Canada
Deal found 12/30$543
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:10 pmORD - LIS
1 stop31h 30mDelta
Sat 1/175:00 amLIS - ORD
1 stop15h 20mDelta
Deal found 12/30$548
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:21 pmORD - LIS
1 stop9h 54mUnited Airlines
Sun 1/1810:50 amLIS - ORD
1 stop14h 55mUnited Airlines
Deal found 12/30$553
This oojo deal was found by Cheapflights users on 12/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:54 pmORD - OPO
2 stops20h 51mBritish Airways
Wed 1/76:35 pmOPO - ORD
1 stop28h 25mBritish Airways
Deal found 12/30$969

Find flight deals from O'Hare Intl to Portugal

Keep the following information in mind while searching for O'Hare Intl to Portugal flight deals. Data was last updated December 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$452
(lol.travel)

One-way from

$231
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$892

Good round-trip deal

$476 or less

Good one-way deal

$373 or less
Provider with most accurate pricing for Chicago (CHI)-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Lisbon Humberto Delgado flights.
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From Chicago O'Hare Intl to Portugal
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One-way flight from Chicago O'Hare Intl to Portugal
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Portugal.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Portugal.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Portugal 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 December 31, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Portugal that are best for you.

Fly from

O'Hare Intl

Fly to

Portugal

Route

Depart

Return

Price

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Mon 2/2

11:15 am-8:10 am

2 stops14h 55m

Lisbon Humberto Delgado

Fri 2/20

5:00 am-1:25 pm

1 stop14h 25m

$489

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 2/4

1:00 pm-8:10 am

2 stops13h 10m

Lisbon Humberto Delgado

Thu 2/19

5:00 am-1:25 pm

1 stop14h 25m

$489

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 2/4

1:00 pm-8:10 am

2 stops13h 10m

Lisbon Humberto Delgado

Fri 2/20

5:00 am-1:25 pm

1 stop14h 25m

$489

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 1/14

2:50 pm-3:10 pm

2 stops18h 20m

Lisbon Humberto Delgado

Tue 5/5

5:00 am-2:15 pm

1 stop15h 15m

$490

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 2/1

10:29 am-3:10 pm

2 stops22h 41m

Lisbon Humberto Delgado

Thu 2/19

11:25 am-2:20 pm

1 stop32h 55m

$491

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Mon 1/12

1:55 pm-11:20 am

2 stops15h 25m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-2:20 pm

1 stop15h 20m

$491

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 3/4

10:55 am-9:20 am

2 stops16h 25m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-2:25 pm

1 stop14h 25m

$491

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 2/1

10:35 am-3:10 pm

2 stops22h 35m

Lisbon Humberto Delgado

Tue 2/17

11:25 am-2:20 pm

1 stop32h 55m

$491

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 2/1

10:29 am-3:10 pm

2 stops22h 41m

Lisbon Humberto Delgado

Fri 2/20

5:00 am-2:20 pm

1 stop15h 20m

$491

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 1/27

12:38 pm-8:10 am

2 stops13h 32m

Lisbon Humberto Delgado

Tue 2/3

5:00 am-5:48 pm

2 stops18h 48m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 60 results
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Best time to book a flight from O'Hare Intl to Portugal

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

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

Currently, December is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $411). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $690). 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 ORD to PT?

Find hourly flight availability from O'Hare Intl to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 31, 2025.

When flying from Chicago O'Hare Intl Airport to Portugal, 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 Chicago to Portugal delayed?

About 42% of weekly flights between Chicago and Portugal have experienced delays in the past year, with the average delay time being 138 minutes.

What is the most punctual flight time for Chicago to Portugal flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 42% of flights being delayed.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated December 31, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Air Canada from Chicago O'Hare Intl Airport to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,126 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,126 reviews
United Airlines
7.4
Good
9,126 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,069 reviews
United Airlines
7.4
Good
9,126 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Air Canada
7.1
Good
10,571 reviews
United Airlines
7.4
Good
9,126 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
TAP AIR PORTUGAL
7.1
Good
2,102 reviews
United Airlines
7.4
Good
9,126 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
7,632 reviews
United Airlines
7.4
Good
9,126 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Portugal. 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 Chicago O'Hare Intl Airport to Portugal?

    Departing from Chicago O'Hare Intl Airport to Portugal will take you 14h 55m. There are 3996 mi between Chicago O'Hare Intl Airport and Portugal. This flight may include one or multiple stops.

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

    $210 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on TAP AIR PORTUGAL and Delta, with prices starting from $284 and $363, respectively.

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

    Most travelers choose Chicago O'Hare Intl - Lisbon Humberto Delgado, Chicago O'Hare Intl - Porto or Chicago O'Hare Intl - Funchal Madeira when deciding on the best route from Chicago O'Hare Intl Airport to Portugal.

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Portugal? While on average our users pay $1,417, our data indicates the cheapest price to be $307. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $443.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $411). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $690). 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

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Alternative routes for O'Hare Intl to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Midway to Frankfurt flights
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Midway to Malpensa flights

Top 10 airlines flying from O'Hare Intl to Portugal

Discover the top 10 airlines that operate flights from O'Hare Intl to Portugal. 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 December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$369Average$478FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$396Average$561FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$441Average$694FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$470Average$625FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$480Average$827FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$488Average$739FlexibilityNo cancel feeOn-time77%
SWISSCheapest$489Average$721FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$494Average$897FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$503Average$600FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$504Average$757FlexibilityNo cancel feeOn-time70%

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