How long is the flight from Cincinnati to Porto?

A quick flight from Cincinnati to Porto can take about 12h 32m. Lufthansa provides one of the quickest options available for as low as $497. 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.

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.

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).

What are the most popular airlines that fly from Cincinnati to Porto?

Before booking your flight from Cincinnati to Porto check out the most popular airlines for this route: United Airlines, American Airlines or Delta.

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.

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.

$322+ Flights from Cincinnati to Porto

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Cheap flight deals from Cincinnati to Porto

Cheapest flights from Cincinnati to Porto
Explore the most affordable flight options available from Cincinnati to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 22, 2025.

dom. 12/215:45 pmCVG - OPO

2 stops36h 55mUnited Airlines

dom. 12/286:00 amOPO - CVG

2 stops22h 59mUnited Airlines

Deal found 12/20

$1,606

dom. 12/213:58 pmCVG - OPO

1 stop14h 57mTAP AIR PORTUGAL

dom. 12/288:55 amOPO - CVG

2 stops17h 07mTAP AIR PORTUGAL

Deal found 12/20

$2,423

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 diciembre 22, 2025.

dom. 3/84:58 pmCVG - OPO

1 stop12h 32mLufthansa

dom. 3/154:15 pmOPO - CVG

2 stops30h 35mLufthansa

Deal found 12/20

$497

mié. 2/411:25 amCVG - OPO

2 stops23h 00mUnited Airlines

mié. 2/116:00 amOPO - CVG

2 stops19h 37mUnited Airlines

Deal found 12/21

$506

mar. 4/216:25 pmCVG - OPO

1 stop16h 00mAir France

mar. 5/56:15 amOPO - CVG

1 stop13h 52mAir France

Deal found 12/20

$677

mar. 4/213:02 pmCVG - OPO

2 stops19h 23mDelta

mar. 5/55:00 amOPO - CVG

2 stops20h 48mDelta

Deal found 12/20

$685

jue. 2/55:55 pmCVG - OPO

2 stops36h 45mUnited Airlines

lun. 2/96:00 amOPO - CVG

2 stops38h 30mUnited Airlines

Deal found 12/19

$506

dom. 3/811:00 amCVG - OPO

2 stops18h 30mUnited Airlines

dom. 3/1512:30 pmOPO - CVG

2 stops34h 20mUnited Airlines

Deal found 12/20

$511

jue. 3/194:58 pmCVG - OPO

1 stop12h 32mLufthansa

mié. 3/256:00 amOPO - CVG

2 stops16h 50mLufthansa

Deal found 12/21

$577

vie. 2/135:55 pmCVG - OPO

2 stops37h 55mLufthansa

vie. 2/2712:30 pmOPO - CVG

2 stops36h 48mLufthansa

Deal found 12/20

$685

Last-minute flights from Cincinnati to Porto
Discover last-minute flight deals from Cincinnati to Porto. Data last updated diciembre 22, 2025 and is based on user searches.

dom. 12/215:45 pmCVG - OPO

2 stops36h 55mUnited Airlines

dom. 12/286:00 amOPO - CVG

2 stops22h 59mUnited Airlines

Deal found 12/20

$1,606

dom. 12/213:58 pmCVG - OPO

1 stop14h 57mTAP AIR PORTUGAL

dom. 12/288:55 amOPO - CVG

2 stops17h 07mTAP AIR PORTUGAL

Deal found 12/20

$2,423

vie. 1/95:00 pmCVG - OPO

2 stops17h 25mKLM

dom. 1/1811:25 amOPO - CVG

2 stops16h 12mKLM

Deal found 12/20

$705

vie. 1/94:20 pmCVG - OPO

1 stop14h 40mMultiple Airlines

dom. 1/188:55 amOPO - CVG

2 stops16h 06mMultiple Airlines

Deal found 12/20

$1,678

dom. 1/186:42 amCVG - OPO

2 stops22h 48mDelta

mié. 1/285:00 amOPO - CVG

2 stops22h 35mDelta

Deal found 12/20

$493

dom. 1/186:50 amCVG - OPO

1 stop24h 05mMultiple Airlines

mié. 1/286:35 pmOPO - CVG

1 stop25h 45mMultiple Airlines

Deal found 12/20

$1,397

One-way flights from Cincinnati to Porto
Search for one-way flight options from Cincinnati to Porto. Find affordable one-way fares based on user searches. Data last updated diciembre 22, 2025.

mié. 5/64:55 pmCVG - OPO

1 stop17h 30mAir France

Deal found 12/20

$322

mié. 5/65:57 pmCVG - OPO

2 stops16h 28mDelta

Deal found 12/20

$326

mié. 5/611:10 amCVG - OPO

2 stops15h 30mAmerican Airlines

Deal found 12/21

$336

mar. 3/3112:48 pmCVG - OPO

2 stops17h 57mIberia

Deal found 12/21

$1,067

mar. 3/316:25 pmCVG - OPO

1 stop16h 00mAir France

Deal found 12/21

$1,568

mar. 3/316:00 amCVG - OPO

3 stops32h 00mMultiple Airlines

Deal found 12/21

$1,918

Find flight deals from Cincinnati to Porto

Most accurate provider	eDreams 3 stars
Most trusted provider	Gurufare 3 stars
Round-trip from	$493 (Delta)
One-way from	$322 (Air France)
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

Fly from

Fly to

Route

Depart

Return

Price

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

dom. 3/8

4:58 pm-9:30 am

1 stop12h 32m

Porto

dom. 3/15

4:15 pm-6:50 pm

2 stops30h 35m

$497

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

mié. 2/4

11:25 am-3:25 pm

2 stops23h 00m

Porto

mié. 2/11

6:00 am-8:37 pm

2 stops19h 37m

$506

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

jue. 2/5

5:55 pm-11:40 am

2 stops36h 45m

Porto

lun. 2/9

6:00 am-3:30 pm

2 stops38h 30m

$506

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

dom. 3/8

11:00 am-9:30 am

2 stops18h 30m

Porto

dom. 3/15

12:30 pm-6:50 pm

2 stops34h 20m

$511

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

jue. 3/19

4:58 pm-9:30 am

1 stop12h 32m

Porto

mié. 3/25

6:00 am-6:50 pm

2 stops16h 50m

$577

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

mar. 4/21

6:25 pm-3:25 pm

1 stop16h 00m

Porto

mar. 5/5

6:15 am-3:07 pm

1 stop13h 52m

$677

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

mar. 4/21

3:02 pm-3:25 pm

2 stops19h 23m

Porto

mar. 5/5

5:00 am-8:48 pm

2 stops20h 48m

$685

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

vie. 2/13

5:55 pm-12:50 pm

2 stops37h 55m

Porto

vie. 2/27

12:30 pm-8:18 pm

2 stops36h 48m

$685

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

mié. 5/6

4:55 pm-3:25 pm

1 stop17h 30m

$322

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

mié. 5/6

5:57 pm-3:25 pm

2 stops16h 28m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 14 results

Compare providers for flights from Cincinnati to Porto

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.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Gurufare	Price Accuracy2 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust 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.

Cheapflights Insights

Everything you need to know about your flight from Cincinnati to Porto

What is the cheapest time of day to fly from CVG to OPO?

It’s optimal to fly from Cincinnati to Porto in the morning. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Porto

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

8,014 reviews

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

8,014 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,102 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,052 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Cincinnati to Porto?
A quick flight from Cincinnati to Porto can take about 12h 32m. Lufthansa provides one of the quickest options available for as low as $497. 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

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Alternative routes for Cincinnati to Porto

Other flights to Porto

Top 3 airlines flying from Cincinnati to Porto

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$646	Average$911	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$775	Average$908	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$829	Average$1,051	FlexibilityNo cancel fee	On-timeN/A

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$322+ 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.

Find cheap flights from Cincinnati to Porto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Cincinnati to Porto

Cheapest flights from Cincinnati to PortoExplore the most affordable flight options available from Cincinnati to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 22, 2025.

Explore the most affordable flight options available from Cincinnati to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 22, 2025.

Find flight deals from Cincinnati to Porto

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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Use the filters below to find and compare flights from Cincinnati to Porto that are best for you.

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.

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.

Cheapflights Insights

Everything you need to know about your flight from Cincinnati to Porto

What is the cheapest time of day to fly from CVG to OPO?

Reviews of airlines servicing Porto

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.

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?

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

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

How can I find direct flights from Cincinnati to Porto?

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

Traveling to a place near Porto?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cincinnati to Porto

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Cincinnati to Porto

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Cheapest flights from Cincinnati to Porto
Explore the most affordable flight options available from Cincinnati to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 22, 2025.