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O'Hare Intl

$320+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$668
(lastminute.com)

One-way from

$320
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$839

Good one-way deal

$628 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. 12% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 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 abril 29, 2025.

This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/99:10 pmFAO - ORD
1 stop23h 00mKLM
mar. 5/131:45 pmORD - FAO
2 stops16h 05mKLM
Deal found 4/28$672
This lol.travel deal was found by Cheapflights users on 4/27. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/128:15 amOPO - ORD
1 stop12h 00mIberia
mar. 6/2410:03 amORD - OPO
2 stops15h 32mIberia
Deal found 4/27$679
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/126:30 amOPO - ORD
1 stop13h 40mDelta
mar. 6/246:27 pmORD - OPO
2 stops15h 03mDelta
Deal found 4/28$689
This Air France deal was found by Cheapflights users on 4/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/116:35 amOPO - ORD
1 stop14h 25mMultiple Airlines
sáb. 5/244:20 pmORD - OPO
1 stop23h 55mMultiple Airlines
Deal found 4/27$701
This KLM deal was found by Cheapflights users on 4/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/136:40 amOPO - ORD
1 stop13h 30mKLM
lun. 6/234:20 pmORD - OPO
1 stop19h 35mKLM
Deal found 4/27$703
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/1212:10 pmOPO - ORD
1 stop14h 10mUnited Airlines
mar. 6/244:00 pmORD - OPO
1 stop11h 45mUnited Airlines
Deal found 4/27$732
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/105:00 amLIS - ORD
1 stop15h 10mDelta
sáb. 5/241:45 pmORD - LIS
2 stops18h 50mDelta
Deal found 4/28$734
This Mytrip deal was found by Cheapflights users on 4/26. 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.
mié. 6/48:05 pmLIS - ORD
3 stops31h 10mMultiple Airlines
mié. 6/257:25 pmORD - LIS
3 stops22h 00mMultiple Airlines
Deal found 4/26$754
This Iberia deal was found by Cheapflights users on 4/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:10 pmLIS - ORD
1 stop21h 20mIberia
vie. 10/174:30 pmORD - LIS
1 stop13h 20mIberia
Deal found 4/28$761
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/610:15 pmLIS - ORD
1 stop26h 45mAer Lingus
jue. 6/199:15 pmORD - LIS
1 stop18h 20mAer Lingus
Deal found 4/27$762
This American Airlines deal was found by Cheapflights users on 4/26. 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.
vie. 6/66:35 amLIS - ORD
1 stop18h 15mAmerican Airlines
jue. 6/195:00 amORD - LIS
1 stop22h 05mAmerican Airlines
Deal found 4/26$765
This Lufthansa deal was found by Cheapflights users on 4/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/246:15 amOPO - ORD
1 stop18h 10mLufthansa
lun. 12/110:35 pmORD - OPO
1 stop17h 50mLufthansa
Deal found 4/27$774

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 abril 29, 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

FaroChicago

FAO - ORD

FAOORD

Faro

vie. 5/9

9:10 pm-2:10 pm

1 stop23h 00m

Chicago O'Hare Intl

mar. 5/13

1:45 pm-11:50 am

2 stops16h 05m

$672

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 6/12

8:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

mar. 6/24

10:03 am-7:35 am

2 stops15h 32m

$679

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 6/12

6:30 am-2:10 pm

1 stop13h 40m

Chicago O'Hare Intl

mar. 6/24

6:27 pm-3:30 pm

2 stops15h 03m

$689

PortoChicago

OPO - ORD

OPOORD

Porto

dom. 5/11

6:35 am-3:00 pm

1 stop14h 25m

Chicago O'Hare Intl

sáb. 5/24

4:20 pm-10:15 pm

1 stop23h 55m

$701

PortoChicago

OPO - ORD

OPOORD

Porto

vie. 6/13

6:40 am-2:10 pm

1 stop13h 30m

Chicago O'Hare Intl

lun. 6/23

4:20 pm-5:55 pm

1 stop19h 35m

$703

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 6/12

12:10 pm-8:20 pm

1 stop14h 10m

Chicago O'Hare Intl

mar. 6/24

4:00 pm-9:45 am

1 stop11h 45m

$732

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

sáb. 5/10

5:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

sáb. 5/24

1:45 pm-2:35 pm

2 stops18h 50m

$734

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

mié. 6/4

8:05 pm-9:15 pm

3 stops31h 10m

Chicago O'Hare Intl

mié. 6/25

7:25 pm-11:25 pm

3 stops22h 00m

$754

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

jue. 10/9

10:10 pm-1:30 pm

1 stop21h 20m

Chicago O'Hare Intl

vie. 10/17

4:30 pm-11:50 am

1 stop13h 20m

$761

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

vie. 6/6

10:15 pm-7:00 pm

1 stop26h 45m

Chicago O'Hare Intl

jue. 6/19

9:15 pm-9:35 pm

1 stop18h 20m

$762

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 55 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 abril 29, 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 abril 29, 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
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

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
1,333 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

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
1,069 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

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
1,273 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

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
1,587 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

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 Aer Lingus, which is currently one of the cheapest options available, starting at $524. TAP AIR PORTUGAL flights start at $526 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 $1,219, our data indicates the cheapest price to be $576. The most popular route (Lisbon Humberto Delgado - Chicago O'Hare Intl), is priced around $667.

  • 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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Racine
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Rockford
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Elgin
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Orland Park
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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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Charles de Gaulle to Midway flights
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Leonardo da Vinci/Fiumicino to O'Hare Intl flights
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Copenhagen to O'Hare Intl flights
Bergamo to O'Hare Intl flights
Bruxelles-National to Midway flights
Edinburgh to O'Hare Intl flights
Istanbul to Midway flights
Vicenza to O'Hare Intl flights
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Stansted to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Oslo Gardermoen to O'Hare Intl flights
Lyon to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Berlin to O'Hare Intl flights
Manchester to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Prague 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 abril 29, 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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