What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Porto?

Delta and United Airlines are the most popular carriers operating from Cincinnati Cinci./N. Kentucky to Porto

When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport?

Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport are updated daily.

How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport?

As of September 2026, there is 1 operator available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport.

How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Porto Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$348 Cheap Flights from Cincinnati to Porto in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cincinnati to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:10 pm - 10:00 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 4:09 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 14m1 stop Paris Charles de Gaulle

$705Delta

Tue, Oct 27 - Tue, Nov 10

10:10 pm - 10:00 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 4:09 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 14m1 stop Paris Charles de Gaulle

$705Delta

Tue, Oct 27 - Thu, Nov 5

7:05 am - 7:15 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

20h 10m1 stop New York John F Kennedy Intl

5:55 am - 4:09 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 14m1 stop Paris Charles de Gaulle

$705Delta

Wed, Oct 28 - Tue, Nov 10

11:44 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

17h 46m1 stop Newark

6:00 am - 5:25 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Tue, Oct 27 - Thu, Nov 5

11:44 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

17h 46m1 stop Newark

6:00 am - 5:25 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$707United Airlines

Tue, Oct 27 - Thu, Nov 5

10:10 pm - 10:00 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 50m1 stop Paris Charles de Gaulle

5:00 am - 7:10 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

19h 10m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$707Delta

Tue, Oct 27 - Tue, Nov 10

7:05 am - 7:15 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

20h 10m1 stop New York John F Kennedy Intl

5:00 am - 5:12 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

17h 12m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$708Delta

Wed, Oct 28 - Tue, Nov 10

11:10 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

18h 20m2 stops Chicago O'Hare Intl Newark

6:00 am - 7:18 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

18h 18m2 stops Frankfurt am Main Chicago O'Hare Intl

$711United Airlines

Tue, Oct 27 - Thu, Nov 5

8:55 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

20h 35m2 stops Chicago O'Hare Intl Newark

6:00 am - 5:25 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$711United Airlines

Tue, Oct 27 - Thu, Nov 5

8:05 am - 7:15 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 10m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

5:00 am - 5:12 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

17h 12m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$712Delta

Wed, Oct 28 - Tue, Nov 10

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Lufthansa flights from Cincinnati to Porto

Our best Lufthansa deals on Cincinnati to Porto flight tickets

Lufthansa

Oct 31

CVG7:44 pmCincinnati Cinci./N. Kentucky

39h 36m

2 stops

OPO3:20 pmPorto

Nov 10

OPO1:45 pmPorto

56h 40m

2 stops

CVG5:25 pmCincinnati Cinci./N. Kentucky

$743

Lufthansa

Oct 30

CVG1:52 pmCincinnati Cinci./N. Kentucky

29h 48m

2 stops

OPO11:40 pmPorto

Nov 12

OPO6:00 amPorto

22h 57m

2 stops

CVG11:57 pmCincinnati Cinci./N. Kentucky

$769

Lufthansa

Oct 29

CVG1:52 pmCincinnati Cinci./N. Kentucky

30h 03m

2 stops

OPO11:55 pmPorto

Nov 9

OPO1:45 pmPorto

38h 57m

2 stops

CVG11:42 pmCincinnati Cinci./N. Kentucky

$781

United Airlines flights from Cincinnati to Porto

Our best United Airlines deals on Cincinnati to Porto flight tickets

United Airlines

Nov 3

CVG9:50 amCincinnati Cinci./N. Kentucky

18h 40m

1 stop

OPO9:30 amPorto

Nov 11

OPO6:00 amPorto

22h 42m

2 stops

CVG11:42 pmCincinnati Cinci./N. Kentucky

$706

United Airlines

Oct 27

CVG8:55 amCincinnati Cinci./N. Kentucky

20h 35m

2 stops

OPO9:30 amPorto

Nov 5

OPO6:00 amPorto

16h 25m

2 stops

CVG5:25 pmCincinnati Cinci./N. Kentucky

$711

United Airlines

Dec 7

CVG12:00 pmCincinnati Cinci./N. Kentucky

16h 30m

1 stop

OPO9:30 amPorto

Dec 11

OPO6:00 amPorto

21h 21m

2 stops

CVG10:21 pmCincinnati Cinci./N. Kentucky

$745

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Tue 11/10

5:55 am-4:09 pm

1 stop15h 14m

$705

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Thu 11/5

5:55 am-4:09 pm

1 stop15h 14m

$705

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/28

7:05 am-7:15 am

1 stop20h 10m

Porto

Tue 11/10

5:55 am-4:09 pm

1 stop15h 14m

$705

Quickest round-trip

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

11:44 am-9:30 am

1 stop17h 46m

Porto

Thu 11/5

6:00 am-5:25 pm

2 stops16h 25m

$706

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

11:44 am-9:30 am

1 stop17h 46m

Porto

Thu 11/5

6:00 am-5:25 pm

2 stops16h 25m

$707

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Tue 11/10

5:00 am-7:10 pm

2 stops19h 10m

$707

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/28

7:05 am-7:15 am

1 stop20h 10m

Porto

Tue 11/10

5:00 am-5:12 pm

2 stops17h 12m

$708

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

11:10 am-9:30 am

2 stops18h 20m

Porto

Thu 11/5

6:00 am-7:18 pm

2 stops18h 18m

$711

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

8:55 am-9:30 am

2 stops20h 35m

Porto

Thu 11/5

6:00 am-5:25 pm

2 stops16h 25m

$711

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/28

8:05 am-7:15 am

2 stops19h 10m

Porto

Tue 11/10

5:00 am-5:12 pm

2 stops17h 12m

$712

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cincinnati to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Cincinnati and Porto?

Prices are currently low for flights on this route.

Typical prices usually range from $848 to $1,348.
The lowest price recently found on this route was $705.

What is the cheapest month to fly to Porto?

The month of December is, on average, the cheapest month to fly to Porto from Cincinnati, with most prices found around $0. If you aren’t able to travel during the month of December, then book flights to Porto from Cincinnati during April instead. Flights to Porto in April, while not as cheap as those in December, still average around $574.

Can stopping save me money on Cincinnati to Porto flights?

You could potentially save up to 37% on your flight if you consider stops on a Cincinnati to Porto flight.

When to book flights from Cincinnati to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Cincinnati to Porto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Cincinnati to Porto (CVG to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cincinnati to Porto

Best Price Found	$348
Fastest flight time	12h 05m
Direct flights	None

The best one-way flight to Porto from Cincinnati in the past 72 hours is $348. The best round-trip flight deal from Cincinnati to Porto found on momondo in the last 72 hours is $705.

The fastest flight from Cincinnati to Porto takes 12h 05m

There are no direct flights from Cincinnati to Porto. There are no popular flight routes from Cincinnati to Porto.

Search flight deals

Frequently asked questions about flying from Cincinnati to Porto

How far is Cincinnati Cinci./N. Kentucky to Porto by plane?
There are 3874.2 mi between Cincinnati Cinci./N. Kentucky and Porto. In terms of flight time, this usually takes a little over 12h 05m.
When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport?
Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport are updated daily.
How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport?
As of September 2026, there is 1 operator available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Porto Airport.
How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Porto Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Cincinnati to Porto?
Based on momondo bookings for flights between Cincinnati and Porto, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Cincinnati to Porto

Compare and see reviews for airlines that fly from Cincinnati to Porto with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $531	Free Cancellation	Rating 7.4 10,158 reviews		Search United Airlines flights

Coimbra

Vila Nova de Gaia

Aveiro

Braga

Pinhao

Matosinhos

Esposende

Chaves

Arcos de Valdevez

Viseu

Espinho

Guimarães

Lamego

Ponte de Lima

Mesao Frio

Penafiel

Caminha

Baiao

Mira

Why use momondo?

Why should I use momondo to find a flight deal from Cincinnati to Porto?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Cincinnati to Porto. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Cincinnati to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from Cincinnati which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cincinnati to Porto?

Once all potential Cincinnati to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Cincinnati to Porto right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Cincinnati to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Lisbon Humberto Delgado Airport

Azores Airport

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Cheap flights from Cincinnati to Porto from $348

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cincinnati to Porto departing on 12/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Lufthansa flights from Cincinnati to Porto

Our best Lufthansa deals on Cincinnati to Porto flight tickets

United Airlines flights from Cincinnati to Porto

Our best United Airlines deals on Cincinnati to Porto flight tickets

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How to get the cheapest flight ticket from Cincinnati to Porto

What is the typical price of a round-trip flight between Cincinnati and Porto?

What is the cheapest month to fly to Porto?

Can stopping save me money on Cincinnati to Porto flights?

What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Porto?

When to book flights from Cincinnati to Porto

Cheap Cincinnati to Porto (CVG to OPO) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Cincinnati to Porto

Best airlines flying from Cincinnati to Porto

Compare and see reviews for airlines that fly from Cincinnati to Porto with momondo

Traveling to a place near Porto?

Why use momondo?

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Porto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto

List of cabin classes available on flights landing in Porto. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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