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$311+ Cheap flights from O'Hare Intl (ORD) to Porto (OPO)

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OPO
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from Chicago O'Hare Intl to Porto are usually found in February or January, booked 15 days in advance, depart on a Friday or Sunday and return on a Thursday

Cheap flight deals from O'Hare Intl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Porto (OPO). 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

June

Cheapest in

February

Round-trip from

$439
(Gotogate)

One-way from

$311
(Kiwi.com)
Provider with most accurate pricing for Chicago O'Hare Intl-Porto flight deals.
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High demand for flights, 28% potential price rise
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Best time to find cheap flights, 29% potential price drop
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From Chicago O'Hare Intl to Porto
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One-way flight from Chicago O'Hare Intl to Porto
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Find flight deals from O'Hare Intl to Porto

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

This Gotogate deal was found by Cheapflights users on 11/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/84:00 pmORD - OPO
2 stops17h 10mMultiple Airlines
Mon 12/236:55 pmOPO - ORD
1 stop27h 20mMultiple Airlines
Deal found 11/20$494
This American Airlines deal was found by Cheapflights users on 11/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/34:45 pmORD - OPO
1 stop13h 00mAmerican Airlines
Wed 12/118:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
Deal found 11/20$503
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:15 pmORD - OPO
1 stop15h 45mTAP AIR PORTUGAL
Tue 12/106:00 pmOPO - ORD
1 stop27h 30mTAP AIR PORTUGAL
Deal found 11/20$504
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/311:35 amORD - OPO
2 stops18h 05mAir Canada
Wed 12/116:00 amOPO - ORD
2 stops22h 07mAir Canada
Deal found 11/20$506
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/43:55 pmORD - OPO
1 stop13h 45mLufthansa
Wed 12/116:00 amOPO - ORD
1 stop13h 25mLufthansa
Deal found 11/20$509
This KLM deal was found by Cheapflights users on 11/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/35:45 pmORD - OPO
2 stops15h 40mKLM
Tue 12/104:10 pmOPO - ORD
1 stop28h 20mKLM
Deal found 11/20$523
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/43:15 pmORD - OPO
1 stop14h 25mUnited Airlines
Mon 12/96:00 amOPO - ORD
1 stop35h 05mUnited Airlines
Deal found 11/20$528
This Delta deal was found by Cheapflights users on 11/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/44:25 pmORD - OPO
1 stop12h 05mDelta
Tue 12/106:00 amOPO - ORD
2 stops18h 31mDelta
Deal found 11/20$529
This Justfly.com deal was found by Cheapflights users on 11/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:45 pmORD - OPO
1 stop17h 15mBritish Airways
Mon 12/98:40 pmOPO - ORD
1 stop23h 50mBritish Airways
Deal found 11/20$590
This Iberia deal was found by Cheapflights users on 11/20. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/612:00 pmORD - OPO
2 stops13h 40mIberia
Mon 12/98:20 amOPO - ORD
1 stop12h 10mIberia
Deal found 11/20$607
This SWISS deal was found by Cheapflights users on 11/20. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/17:05 pmORD - OPO
1 stop34h 10mSWISS
Mon 12/97:05 pmOPO - ORD
1 stop27h 10mSWISS
Deal found 11/20$660

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

Customize your flight search to find flights from O'Hare Intl to Porto 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 2,629,791 searches. Data last updated November 21, 2024.

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Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 2/2

8:25 pm-6:05 pm

1 stop15h 40m

Porto

Tue 2/11

6:00 pm-3:30 pm

1 stop27h 30m

$439

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 2/2

8:25 pm-7:20 pm

2 stops16h 55m

Porto

Tue 2/11

8:10 pm-3:30 pm

2 stops25h 20m

$485

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 12/3

4:45 pm-11:45 am

1 stop13h 00m

Porto

Wed 12/11

8:20 am-2:30 pm

1 stop12h 10m

$503

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 12/3

11:35 am-11:40 am

2 stops18h 05m

Porto

Wed 12/11

6:00 am-10:07 pm

2 stops22h 07m

$506

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 12/4

3:55 pm-11:40 am

1 stop13h 45m

Porto

Wed 12/11

6:00 am-1:25 pm

1 stop13h 25m

$509

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 2/18

9:55 pm-8:00 pm

2 stops16h 05m

Porto

Tue 2/25

8:20 am-2:30 pm

1 stop12h 10m

$515

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 12/3

5:45 pm-3:25 pm

2 stops15h 40m

Porto

Tue 12/10

4:10 pm-2:30 pm

1 stop28h 20m

$523

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sat 2/8

9:13 pm-3:10 pm

2 stops35h 57m

Porto

Tue 2/18

6:00 am-4:35 pm

2 stops40h 35m

$525

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 2/4

8:35 am-10:50 am

2 stops20h 15m

Porto

Thu 2/13

11:15 am-2:30 pm

1 stop33h 15m

$528

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 3/6

7:05 pm-6:40 pm

1 stop17h 35m

Porto

Wed 3/12

7:30 pm-5:15 pm

1 stop26h 45m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 21 results
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Compare providers for flights from O'Hare Intl to Porto

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 O'Hare Intl to Porto in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 Chicago O'Hare Intl Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Porto 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 Chicago O'Hare Intl Airport-Porto 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 O'Hare Intl to Porto

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

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

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Porto?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Porto. Price data was last updated on November 15, 2024.

The best time to book flights from Chicago O'Hare Intl Airport to Porto is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Porto (average of $517). Flying from Chicago O'Hare Intl Airport to Porto in June is currently the most expensive (average of $993). 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 ORD to OPO?

Find hourly flight availability from O'Hare Intl to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Porto in the evening. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Porto?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Porto. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Porto flight should consider departing on Wednesday evenings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated November 21, 2024.
To help decide which airline to fly from Chicago to Porto, see what other customers have to say about TAP AIR PORTUGAL, Air Canada and Iberia. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,758 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,637 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,172 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,758 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Porto. 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 into for flights to Porto from Chicago O'Hare Intl?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Porto. 9 airlines have flights to Porto from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Porto should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

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

    Currently priced at $439, TAP AIR PORTUGAL will fly you from Chicago O'Hare Intl Airport to Porto and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Air Canada - these airlines can fly you to your destination from $503 and $506, respectively. Users have found that TAP AIR PORTUGAL is 37% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Porto one-way?

    To fly one-way, consider booking your trip with Iberia, which is currently one of the cheapest options available, starting at $463. United Airlines flights start at $539 while deals on Lufthansa start at $544 one-way.

  • Where are the most common layover locations when flying from Chicago O'Hare Intl Airport to Porto?

    Of the flights from Chicago O'Hare Intl Airport to Porto that have layovers, most of them stop in Madrid.

  • What are some popular things to do or see while on a layover in Madrid?

    If you're on a layover in Madrid and looking for things to do, consider visiting Puerta del Sol, Plaza Mayor, or Spain Building. Travelers on a layover in Madrid can visit Puerta del Sol, Plaza Mayor, and Spain Building, by traveling 8.4 mi, 8.6 mi, and 8.5 mi, respectively after landing at Madrid Barajas. Travelers can book a car rental at Madrid Barajas for about $29 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Chicago O'Hare Intl Airport to Porto flights?

    Chicago O'Hare Intl Airport to Porto flights have a layover in Lisbon the least frequently.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Porto (average of $517). Flying from Chicago O'Hare Intl Airport to Porto in June is currently the most expensive (average of $993). 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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Top 9 airlines flying from O'Hare Intl to Porto

Discover the top 9 airlines that operate flights from O'Hare Intl to Porto. 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$418Average$665FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$468Average$747FlexibilityNo cancel feeOn-time71%
IberiaCheapest$488Average$641FlexibilityNo cancel feeOn-time77%
DeltaCheapest$519Average$821FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$523Average$831FlexibilityNo cancel feeOn-time70%
KLMCheapest$527Average$834FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$534Average$838FlexibilityNo cancel feeOn-time76%
SWISSCheapest$616Average$940FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$626Average$1,043FlexibilityNo cancel feeOn-time69%
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