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O'Hare Intl

$334+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
avr. 27 — mai 41
dim. 4/27
dim. 5/4
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 avril 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$685
(Priceline)

One-way from

$334
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$839

Good one-way deal

$630 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. 11% potential increase in price ($110 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 avril 22, 2025.

This Mytrip deal was found by Cheapflights users on 4/20. 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.
jeu. 5/110:15 pmFAO - ORD
1 stop21h 45mMultiple Airlines
lun. 5/53:45 pmORD - FAO
1 stop13h 15mMultiple Airlines
Deal found 4/20$650
This United Airlines deal was found by Cheapflights users on 4/21. 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.
ven. 5/212:55 pmLIS - ORD
2 stops49h 07mUnited Airlines
dim. 5/47:40 pmORD - LIS
1 stop32h 50mUnited Airlines
Deal found 4/21$674
This KLM deal was found by Cheapflights users on 4/21. 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.
jeu. 5/18:20 pmFAO - ORD
1 stop23h 50mKLM
lun. 5/54:20 pmORD - FAO
1 stop20h 45mKLM
Deal found 4/21$674
This Delta deal was found by Cheapflights users on 4/21. 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.
lun. 4/285:00 amLIS - ORD
1 stop15h 10mDelta
lun. 5/510:25 amORD - LIS
2 stops18h 50mDelta
Deal found 4/21$677
This KLM deal was found by Cheapflights users on 4/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/111:40 amLIS - ORD
1 stop32h 30mKLM
sam. 5/244:20 pmORD - LIS
1 stop24h 30mKLM
Deal found 4/22$682
This Priceline deal was found by Cheapflights users on 4/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/198:15 amOPO - ORD
1 stop12h 00mMultiple Airlines
lun. 5/269:15 pmORD - OPO
1 stop16h 35mMultiple Airlines
Deal found 4/21$685
This Delta deal was found by Cheapflights users on 4/21. 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.
lun. 5/196:15 amOPO - ORD
1 stop13h 55mDelta
lun. 5/267:25 pmORD - OPO
2 stops14h 10mDelta
Deal found 4/21$697
This British Airways deal was found by Cheapflights users on 4/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/3011:05 amLIS - ORD
1 stop14h 56mBritish Airways
mar. 5/137:10 pmORD - LIS
1 stop14h 20mBritish Airways
Deal found 4/22$702
This Virgin Atlantic deal was found by Cheapflights users on 4/21. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/512:45 pmLIS - ORD
2 stops13h 36mVirgin Atlantic
jeu. 6/129:49 amORD - LIS
2 stops16h 11mVirgin Atlantic
Deal found 4/21$703
This Mytrip deal was found by Cheapflights users on 4/21. 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.
mer. 5/75:40 amLIS - ORD
3 stops31h 47mMultiple Airlines
dim. 5/117:35 pmORD - LIS
3 stops31h 15mMultiple Airlines
Deal found 4/21$705
This KLM deal was found by Cheapflights users on 4/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/126:30 amOPO - ORD
2 stops17h 16mKLM
mar. 6/247:00 pmORD - OPO
2 stops14h 35mKLM
Deal found 4/22$710
This British Airways deal was found by Cheapflights users on 4/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/157:30 pmOPO - ORD
1 stop26h 25mBritish Airways
jeu. 5/295:40 pmORD - OPO
1 stop20h 40mBritish Airways
Deal found 4/22$731

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 avril 22, 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

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

ven. 5/2

12:55 pm-8:02 am

2 stops49h 07m

Chicago O'Hare Intl

dim. 5/4

7:40 pm-10:30 am

1 stop32h 50m

$674

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

jeu. 6/5

5:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

jeu. 6/12

7:00 am-8:00 am

1 stop19h 00m

$681

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

ven. 5/2

5:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

dim. 5/4

4:20 pm-10:50 pm

1 stop24h 30m

$683

PortoChicago

OPO - ORD

OPOORD

Porto

lun. 5/19

8:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

lun. 5/26

9:15 pm-7:50 pm

1 stop16h 35m

$685

PortoChicago

OPO - ORD

OPOORD

Porto

lun. 5/19

6:15 am-2:10 pm

1 stop13h 55m

Chicago O'Hare Intl

lun. 5/26

7:25 pm-3:35 pm

2 stops14h 10m

$697

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

jeu. 6/5

12:45 pm-8:21 pm

2 stops13h 36m

Chicago O'Hare Intl

jeu. 6/12

9:49 am-8:00 am

2 stops16h 11m

$703

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

mer. 5/7

5:40 am-7:27 am

3 stops31h 47m

Chicago O'Hare Intl

dim. 5/11

7:35 pm-8:50 am

3 stops31h 15m

$705

PortoChicago

OPO - ORD

OPOORD

Porto

jeu. 6/12

6:30 am-5:46 pm

2 stops17h 16m

Chicago O'Hare Intl

mar. 6/24

7:00 pm-3:35 pm

2 stops14h 35m

$710

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

mer. 5/7

6:35 am-2:15 pm

1 stop13h 40m

Chicago O'Hare Intl

dim. 5/11

7:15 pm-11:05 pm

1 stop21h 50m

$722

PortoChicago

OPO - ORD

OPOORD

Porto

jeu. 5/15

7:30 pm-3:55 pm

1 stop26h 25m

Chicago O'Hare Intl

jeu. 5/29

5:40 pm-8:20 pm

1 stop20h 40m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 51 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 avril 22, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 4% on flights from Portugal to Chicago O'Hare Intl Airport by exploring options for tickets in the morning.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 avril 22, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Portugal to Chicago 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
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,065 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $527. Aer Lingus flights start at $537 while deals on Turkish Airlines start at $606 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 $1,545, our data indicates the cheapest price to be $521. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $652.

  • 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 Portugal?

Book flights to Portugal if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
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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.
Frankfurt to O'Hare Intl flights
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Frederic Chopin to Midway flights
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Heathrow to Midway flights
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Madrid to Midway flights
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Istanbul to O'Hare Intl flights
Malpensa to O'Hare Intl flights
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Frankfurt-Hahn to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Duesseldorf Intl to O'Hare Intl flights
Bruxelles-National to Midway flights
Modlin to O'Hare Intl flights
Stansted to O'Hare Intl flights
Lyon to O'Hare Intl flights
Linate to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to Midway flights
Manchester to O'Hare Intl flights
Duesseldorf Intl to Midway flights
Berlin to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Oslo Gardermoen to O'Hare Intl flights
Lisbon to O'Hare Intl flights
Luton to O'Hare Intl flights
Bergamo to O'Hare Intl flights
Vicenza to O'Hare Intl flights

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 avril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$579Average$713FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$580Average$1,005FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$650Average$696FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$733Average$898FlexibilityNo cancel feeOn-time69%

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