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$324+ Cheap flights from Porto (OPO) to Chicago (CHI)

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — CHI
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Porto to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Chicago (CHI). 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$582
(Mytrip)

One-way from

$324
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$834
Provider with most accurate pricing for Porto-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Porto-Chicago (CHI) flights.
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From Porto to Chicago (CHI)
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One-way flight from Porto to Chicago (CHI)
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Porto to Chicago

Cheapest flights from Porto to Chicago
Explore the most affordable flight options available from Porto to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/17. 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.
Fri 12/278:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
Sat 1/1110:00 pmORD - OPO
2 stops16h 00mAmerican Airlines
Deal found 12/17$711
This AirNGo deal was found by Cheapflights users on 12/17. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2711:15 amOPO - ORD
1 stop33h 15mKLM
Sat 1/115:20 pmORD - OPO
1 stop11h 30mKLM
Deal found 12/17$721
This Mytrip deal was found by Cheapflights users on 12/17. 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 12/271:55 pmOPO - ORD
2 stops31h 55mMultiple Airlines
Sat 1/117:10 pmORD - OPO
3 stops33h 20mMultiple Airlines
Deal found 12/17$978
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/17. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/276:55 amOPO - ORD
1 stop14h 35mTAP AIR PORTUGAL
Sat 1/117:00 amORD - OPO
2 stops20h 50mTAP AIR PORTUGAL
Deal found 12/17$1,141
This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/198:20 amOPO - ORD
1 stop12h 10mIberia
Mon 12/234:45 pmORD - OPO
1 stop13h 00mIberia
Deal found 12/17$2,437

Find flights from Porto to Chicago within your budget

Customize your flight search to find flights from Porto to Chicago 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 18, 2024.

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Route

Depart

Return

Price

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 1/31

7:00 am-6:25 pm

2 stops17h 25m

Chicago O'Hare Intl

Fri 2/7

9:25 pm-11:10 pm

2 stops19h 45m

$582

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 4/11

5:55 pm-4:10 pm

1 stop28h 15m

Chicago O'Hare Intl

Mon 4/21

7:15 pm-11:15 am

1 stop34h 00m

$605

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 2/1

10:40 am-10:10 am

1 stop29h 30m

Chicago O'Hare Intl

Sat 2/8

11:55 am-3:30 pm

1 stop21h 35m

$691

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 2/24

8:35 am-10:44 pm

2 stops20h 09m

Chicago O'Hare Intl

Sun 3/2

4:45 pm-11:45 am

1 stop13h 00m

$706

PortoChicago

OPO - ORD

OPOORD

Porto

Sat 2/1

6:00 am-3:15 pm

1 stop15h 15m

Chicago O'Hare Intl

Sat 2/8

9:25 pm-11:35 pm

1 stop20h 10m

$708

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 2/24

12:25 pm-10:54 am

2 stops52h 29m

Chicago O'Hare Intl

Sun 3/2

7:20 am-11:35 am

2 stops22h 15m

$714

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 1/31

6:15 am-5:36 pm

2 stops17h 21m

Chicago O'Hare Intl

Fri 2/7

1:40 pm-10:50 am

2 stops15h 10m

$733

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 4/11

9:15 am-8:34 pm

2 stops17h 19m

Chicago O'Hare Intl

Mon 4/21

1:35 pm-3:30 pm

2 stops19h 55m

$737

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 6/12

8:40 am-3:55 pm

1 stop13h 15m

Chicago O'Hare Intl

Tue 6/24

2:20 pm-11:25 am

1 stop15h 05m

$738

PortoChicago

OPO - ORD

OPOORD

Porto

Sun 1/5

8:20 am-8:07 pm

2 stops17h 47m

Chicago O'Hare Intl

Sat 1/11

10:00 pm-7:15 pm

1 stop15h 15m

$1,156

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 17 results
1
2

Compare providers for flights from Porto to Chicago

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 Chicago in December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice 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 flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Chicago 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 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 Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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 Chicago

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

What is the cheapest month to book a flight from Porto to Chicago?

Currently, September is the cheapest month in which you can book a flight from Porto to Chicago (average of $232). Flying from Porto to Chicago 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 Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated December 18, 2024.
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

SWISS
7.6
Good
1,606 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
9,055 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

Turkish Airlines
7.3
Good
3,907 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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 Porto to Chicago. 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?

    Located just 6.8 mi from the city center, Porto is the airport most travelers will use when flying to Chicago from Porto. Booking flights from Porto (OPO) to Chicago should be relatively easy as there are 0 daily outbound flights to Chicago from 1 airline.

  • What are the cheapest airlines flying from Porto to Chicago round-trip?

    Currently priced at $605, Scandinavian Airlines will fly you from Porto to Chicago and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Turkish Airlines and Iberia - these airlines can fly you to your destination from $691 and $706, respectively. These flights start at 29% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Porto to Chicago one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $513. Users have also found prices from $569 and $595 on Turkish Airlines and British Airways, respectively.

  • Can I find deals for flights from Porto to Chicago that include hotel bookings?

    Yes. In addition to deals on Porto to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Chicago.

  • Can I find deals for business class flights from Porto to Chicago?

    Yes. Cheapflights offers flight deals from Porto to Chicago 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?

    Currently, September is the cheapest month in which you can book a flight from Porto to Chicago (average of $232). Flying from Porto to Chicago 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

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Alternative routes for Porto to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Porto to Chicago

Discover the top airline that operate flights from Porto to Chicago. 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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$846Average$879FlexibilityNo cancel feeOn-time69%
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