HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$411+ Cheap flights from Porto (OPO) 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — ORD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto to O'Hare Intl with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Porto to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

April

Cheapest in

February

Round-trip from

$538
(Mytrip)

One-way from

$411
(Kiwi.com)
Provider with most accurate pricing for Porto-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Chicago O'Hare Intl flights.
Search Deals
High demand for flights, 52% potential price rise
Search Deals
Best time to find cheap flights, 31% potential price drop
Search Deals
From Porto to Chicago O'Hare Intl
Search Deals
One-way flight from Porto to Chicago O'Hare Intl
Search Deals

Find flight deals from Porto to O'Hare Intl

Cheapest flights from Porto to O'Hare Intl
Explore the most affordable flight options available from Porto to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This SWISS deal was found by Cheapflights users on 11/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:55 pmOPO - ORD
1 stop27h 20mSWISS
Mon 12/307:05 pmORD - OPO
1 stop17h 25mSWISS
Deal found 11/21$704
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Mon 12/2312:25 pmOPO - ORD
1 stop31h 00mUnited Airlines
Mon 12/307:00 amORD - OPO
2 stops22h 35mUnited Airlines
Deal found 11/21$712
This Kiwi.com deal was found by Cheapflights users on 11/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/214:30 pmOPO - ORD
1 stop25h 45mMultiple Airlines
Sat 12/286:30 pmORD - OPO
1 stop35h 05mMultiple Airlines
Deal found 11/21$758
This lol.travel deal was found by Cheapflights users on 11/21. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/211:45 pmOPO - ORD
2 stops28h 30mLufthansa
Sat 12/286:30 pmORD - OPO
1 stop35h 05mLufthansa
Deal found 11/21$824
This Booking.com deal was found by Cheapflights users on 11/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/306:00 amOPO - ORD
2 stops32h 57mAir Canada
Sat 12/77:20 amORD - OPO
2 stops22h 20mAir Canada
Deal found 11/21$945
This KLM deal was found by Cheapflights users on 11/21. 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.
Sat 11/306:00 amOPO - ORD
1 stop14h 30mKLM
Fri 12/61:45 pmORD - OPO
2 stops15h 05mKLM
Deal found 11/21$1,032

Find flights from Porto to O'Hare Intl within your budget

Customize your flight search to find flights from Porto 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/16

6:00 pm-3:30 pm

1 stop27h 30m

Chicago O'Hare Intl

Wed 1/29

7:15 pm-7:45 am

1 stop30h 30m

$538

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/16

11:35 am-3:30 pm

3 stops33h 55m

Chicago O'Hare Intl

Wed 1/29

7:15 pm-9:20 pm

2 stops20h 05m

$570

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/16

8:20 am-9:56 pm

2 stops19h 36m

Chicago O'Hare Intl

Wed 1/29

4:45 pm-4:00 pm

1 stop17h 15m

$667

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 12/23

6:55 pm-4:15 pm

1 stop27h 20m

Chicago O'Hare Intl

Mon 12/30

7:05 pm-6:30 pm

1 stop17h 25m

$704

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 12/23

12:25 pm-1:25 pm

1 stop31h 00m

Chicago O'Hare Intl

Mon 12/30

7:00 am-11:35 am

2 stops22h 35m

$712

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 1/16

6:00 am-3:15 pm

1 stop15h 15m

Chicago O'Hare Intl

Wed 1/29

6:00 pm-12:50 pm

1 stop12h 50m

$713

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 12/5

2:00 pm-10:17 am

3 stops50h 17m

$411

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 12/5

8:00 pm-3:30 pm

1 stop25h 30m

$504

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 12/20

4:25 pm-10:10 am

1 stop23h 45m

$566

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 3/21

8:40 pm-5:45 pm

2 stops26h 05m

$627

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 11 results
1
2

Compare providers for flights from Porto to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to O'Hare Intl in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Porto 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.

Travel insights for flights from Porto to O'Hare Intl

Get recent, data-driven insights about flights from Porto to O'Hare Intl including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Porto to Chicago O'Hare Intl Airport (average of $232). Flying from Porto to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $308). 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.

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 November 21, 2024.
KLM
7.8
Good
1,349 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.9

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,349 reviews
KLM
7.8
Good
1,349 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.9

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

SWISS
7.6
Good
1,636 reviews
KLM
7.8
Good
1,349 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.9

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Turkish Airlines
7.4
Good
3,920 reviews
KLM
7.8
Good
1,349 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.9

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

United Airlines
7.4
Good
9,172 reviews
KLM
7.8
Good
1,349 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.9

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,349 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.9

Crew

8.4

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Related info for your journey

Find useful and relevant information for your journey from Porto 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 airport do you fly from for flights from Porto to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Porto, you will be flying from Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Porto to Chicago O'Hare Intl per day from 1 airline.

  • What are the cheapest airlines flying from Porto to Chicago O'Hare Intl Airport round-trip?

    Flying on TAP AIR PORTUGAL is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $538. Additional round-trip tickets that might be worth considering are offered by American Airlines and SWISS, with the lowest prices starting at $667 and $704, respectively. You may be able to fly from Porto to Chicago O'Hare Intl Airport for 40% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Porto 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 $504. Turkish Airlines flights start at $566 while deals on Iberia start at $627 one-way.

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

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

  • How can I find direct flights from Porto 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 Porto to O'Hare Intl.

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

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

    Currently, September is the cheapest month in which you can book a flight from Porto to Chicago O'Hare Intl Airport (average of $232). Flying from Porto to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $308). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to O'Hare Intl flights
Faro to O'Hare Intl flights

Top airline flying from Porto to O'Hare Intl

Discover the top airline that operate flights from Porto 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$846Average$879FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines