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$272+ Cheap flights from Cincinnati (CVG) 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — OPO
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Cheap flight deals from Cincinnati to Porto

Best flights from Cincinnati to Porto
Discover carefully curated flight deals from Cincinnati to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

This Expedia deal was found by Cheapflights users on 12/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/92:08 pmCVG - OPO
2 stops17h 42mMultiple Airlines
Mon 2/1612:05 pmOPO - CVG
2 stops37h 13mMultiple Airlines
Deal found 12/26$496
This United Airlines deal was found by Cheapflights users on 12/24. 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.
Fri 2/67:00 amCVG - OPO
2 stops23h 40mUnited Airlines
Tue 2/106:00 amOPO - CVG
2 stops33h 00mUnited Airlines
Deal found 12/24$506
This FlightHub deal was found by Cheapflights users on 12/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/87:45 pmCVG - OPO
2 stops22h 40mLufthansa
Sun 3/154:15 pmOPO - CVG
2 stops35h 31mLufthansa
Deal found 12/25$512
This KLM deal was found by Cheapflights users on 12/25. 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 3/316:48 pmCVG - OPO
2 stops15h 42mKLM
Mon 4/136:30 amOPO - CVG
2 stops17h 44mKLM
Deal found 12/25$651
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/95:55 pmCVG - OPO
2 stops39h 50mUnited Airlines
Mon 2/1612:30 pmOPO - CVG
3 stops60h 48mUnited Airlines
Deal found 12/26$538
This KLM deal was found by Cheapflights users on 12/25. 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 3/316:48 pmCVG - OPO
2 stops15h 42mMultiple Airlines
Mon 4/134:20 pmOPO - CVG
1 stop27h 55mMultiple Airlines
Deal found 12/25$604
This FlightHub deal was found by Cheapflights users on 12/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/94:20 pmCVG - OPO
2 stops17h 25mLufthansa
Sun 1/186:00 amOPO - CVG
2 stops19h 46mLufthansa
Deal found 12/25$692

Find flight deals from Cincinnati to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Cincinnati (CVG) 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 December 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$496
(Expedia)

One-way from

$272
(American Airlines)

Popular in

June

Cheapest in

November
Provider with most accurate pricing for Cincinnati Cinci./N. Kentucky-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cincinnati Cinci./N. Kentucky-Porto flights.
Search Deals
From Cincinnati Cinci./N. Kentucky to Porto
Search Deals
One-way flight from Cincinnati Cinci./N. Kentucky to Porto
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cincinnati 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 2,558,603 searches. Data last updated December 27, 2025.
Use the filters below to find and compare flights from Cincinnati to Porto that are best for you.

Fly from

Cincinnati

Fly to

Porto

Route

Depart

Return

Price

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 2/9

2:08 pm-12:50 pm

2 stops17h 42m

Porto

Mon 2/16

12:05 pm-8:18 pm

2 stops37h 13m

$496

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Fri 2/6

7:00 am-11:40 am

2 stops23h 40m

Porto

Tue 2/10

6:00 am-10:00 am

2 stops33h 00m

$506

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 3/8

7:45 pm-10:25 pm

2 stops22h 40m

Porto

Sun 3/15

4:15 pm-11:46 pm

2 stops35h 31m

$512

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 2/9

5:55 pm-2:45 pm

2 stops39h 50m

Porto

Mon 2/16

12:30 pm-8:18 pm

3 stops60h 48m

$538

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/31

6:48 pm-3:30 pm

2 stops15h 42m

Porto

Mon 4/13

4:20 pm-3:15 pm

1 stop27h 55m

$604

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/31

6:48 pm-3:30 pm

2 stops15h 42m

Porto

Mon 4/13

6:30 am-7:14 pm

2 stops17h 44m

$651

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Fri 1/9

4:20 pm-2:45 pm

2 stops17h 25m

Porto

Sun 1/18

6:00 am-8:46 pm

2 stops19h 46m

$692

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 5/6

11:10 am-7:40 am

2 stops15h 30m

$272

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 5/6

4:55 pm-10:00 pm

1 stop24h 05m

$344

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 5/6

4:55 pm-3:25 pm

1 stop17h 30m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 15 results
1
2

Compare providers for flights from Cincinnati 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 Cincinnati to Porto in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 Cincinnati-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cincinnati-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Cincinnati-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cincinnati-Porto flights, Cheapflights users trust Gurufare the most. Gurufare 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 Cincinnati-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 Cincinnati to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Cincinnati 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.

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 December 27, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Cincinnati to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,018 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,018 reviews
Delta
7.9
Good
8,018 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,116 reviews
Delta
7.9
Good
8,018 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,067 reviews
Delta
7.9
Good
8,018 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Cincinnati to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cincinnati to Porto?

    A quick flight from Cincinnati to Porto can take about 22h 40m. United Airlines provides one of the quickest options available for as low as $512. The distance between Cincinnati and Porto is about 3878 mi. This flight may include one or multiple stops.

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

    United Airlines, at $646, was found to be the cheapest airline from Cincinnati to Porto.Alternate airlines to your destination round-trip include American Airlines and Delta. United Airlines is currently priced 29% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cincinnati 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.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra
Vila Nova de Gaia

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Top 3 airlines flying from Cincinnati to Porto

Discover the top 3 airlines that operate flights from Cincinnati 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 2,558,603 searches. Data last updated December 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$646Average$911FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$775Average$908FlexibilityNo cancel feeOn-time71%
DeltaCheapest$829Average$1,051FlexibilityNo cancel feeOn-timeN/A

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