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O'Hare Intl

$340+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
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 July 25, 2025.

Round-trip from

$499
(flugladen.de)

One-way from

$340
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$986

Good round-trip deal

$823 or less

Good one-way deal

$648 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. 12% potential increase in price ($117 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 25, 2025.

This lol.travel deal was found by Cheapflights users on 7/24. 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.
Thu 11/276:00 pmOPO - ORD
1 stop27h 15mTAP AIR PORTUGAL
Fri 12/58:15 pmORD - OPO
1 stop16h 45mTAP AIR PORTUGAL
Deal found 7/24$476
This Mytrip deal was found by Cheapflights users on 7/24. 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 9/119:25 amLIS - ORD
2 stops17h 50mMultiple Airlines
Sat 9/207:25 pmORD - LIS
2 stops20h 30mMultiple Airlines
Deal found 7/24$542
This Mytrip deal was found by Cheapflights users on 7/24. 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 9/56:25 amOPO - ORD
2 stops15h 45mMultiple Airlines
Sun 9/216:00 pmORD - OPO
2 stops22h 35mMultiple Airlines
Deal found 7/24$590
This lol.travel deal was found by Cheapflights users on 7/24. 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 11/285:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Thu 12/47:20 pmORD - OPO
1 stop15h 35mScandinavian Airlines
Deal found 7/24$606
This Gotogate deal was found by Cheapflights users on 7/23. 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.
Sat 10/47:15 amLIS - ORD
1 stop14h 55mScandinavian Airlines
Sat 10/187:15 pmORD - LIS
1 stop31h 45mScandinavian Airlines
Deal found 7/23$624
This Booking.com deal was found by Cheapflights users on 7/23. 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 9/610:15 pmLIS - ORD
1 stop21h 45mAer Lingus
Sat 9/139:15 pmORD - LIS
1 stop18h 20mAer Lingus
Deal found 7/23$626
This Iberia deal was found by Cheapflights users on 7/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:10 pmLIS - ORD
1 stop21h 20mIberia
Wed 10/14:30 pmORD - LIS
1 stop21h 35mIberia
Deal found 7/22$642
This Delta deal was found by Cheapflights users on 7/22. 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.
Thu 8/285:00 amLIS - ORD
1 stop15h 10mDelta
Sat 9/132:25 pmORD - LIS
2 stops18h 25mDelta
Deal found 7/22$669
This KLM deal was found by Cheapflights users on 7/24. 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.
Fri 8/297:30 pmLIS - ORD
1 stop24h 40mKLM
Sun 9/144:15 pmORD - LIS
1 stop12h 40mKLM
Deal found 7/24$679
This KLM deal was found by Cheapflights users on 7/23. 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.
Mon 11/246:30 amOPO - ORD
1 stop13h 50mKLM
Mon 12/15:20 pmORD - OPO
1 stop11h 10mKLM
Deal found 7/23$683
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:05 amLIS - ORD
1 stop29h 34mAmerican Airlines
Sat 9/138:40 pmORD - LIS
1 stop20h 30mAmerican Airlines
Deal found 7/23$685
This Delta deal was found by Cheapflights users on 7/23. 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.
Thu 9/46:30 amOPO - ORD
1 stop13h 40mDelta
Sat 9/202:00 pmORD - OPO
2 stops19h 30mDelta
Deal found 7/23$686

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 25, 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

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 9/5

10:00 am-4:10 pm

1 stop12h 10m

Chicago O'Hare Intl

Sun 9/21

6:00 pm-8:30 pm

1 stop20h 30m

$499

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 9/11

9:25 am-9:15 pm

2 stops17h 50m

Chicago O'Hare Intl

Sat 9/20

7:25 pm-9:55 pm

2 stops20h 30m

$542

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 9/5

6:25 am-4:10 pm

2 stops15h 45m

Chicago O'Hare Intl

Sun 9/21

6:00 pm-10:35 pm

2 stops22h 35m

$590

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sat 10/4

7:15 am-4:10 pm

1 stop14h 55m

Chicago O'Hare Intl

Sat 10/18

7:15 pm-9:00 am

1 stop31h 45m

$624

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sat 9/6

10:15 pm-2:00 pm

1 stop21h 45m

Chicago O'Hare Intl

Sat 9/13

9:15 pm-9:35 pm

1 stop18h 20m

$626

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 9/17

10:10 pm-1:30 pm

1 stop21h 20m

Chicago O'Hare Intl

Wed 10/1

4:30 pm-8:05 pm

1 stop21h 35m

$642

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 8/28

5:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Sat 9/13

2:00 pm-2:50 pm

2 stops18h 50m

$669

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 8/29

7:30 pm-2:10 pm

1 stop24h 40m

Chicago O'Hare Intl

Sun 9/14

4:15 pm-10:55 am

1 stop12h 40m

$679

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 8/28

11:05 am-10:39 am

1 stop29h 34m

Chicago O'Hare Intl

Sat 9/13

8:40 pm-11:10 pm

1 stop20h 30m

$685

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 9/4

6:30 am-2:10 pm

1 stop13h 40m

Chicago O'Hare Intl

Sat 9/20

2:00 pm-3:30 pm

2 stops19h 30m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 34 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 July 25, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 17% 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 July 25, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Air France 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
7,967 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,967 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,375 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,462 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,676 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,876 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $467. Scandinavian Airlines flights start at $507 while deals on Aer Lingus start at $565 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 $2,007, our data indicates the cheapest price to be $497. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $607.

  • 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
Beloit
Hoffman Estates
Skokie
Naperville
Arlington Heights
Des Plaines
Elgin
Orland Park
Elk Grove Village
Racine
Rockford
Tinley Park
Merrillville
Evanston
Lake Geneva
Gurnee
Joliet
Waukegan

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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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Madrid to Midway flights
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Frankfurt-Hahn to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Duesseldorf Intl to O'Hare Intl flights
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Bergamo to O'Hare Intl flights
Stansted to O'Hare Intl flights
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Munich to Midway flights
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Duesseldorf Intl to Midway flights
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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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$497Average$1,230FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$579Average$713FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$650Average$696FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$733Average$872FlexibilityNo cancel feeOn-time69%

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