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 October 2026, there are 2 operators 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.

$331 Cheap Flights from Cincinnati to Porto in 2026/27

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.

6:40 pm - 12:50 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

37h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:00 am - 11:49 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 49m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$706Multiple Airlines

Mon, Mar 1 - Wed, Mar 10

3:00 pm - 11:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

16h 45m2 stops Newark Frankfurt am Main

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

40h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$711Multiple Airlines

Mon, Mar 15 - Thu, Mar 25

6:40 pm - 10:25 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

23h 45m2 stops Toronto Pearson Intl Frankfurt am Main

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

40h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$714Multiple Airlines

Mon, Mar 15 - Thu, Mar 25

12:30 pm - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

17h 00m1 stop Newark

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

40h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$715United Airlines

Mon, Mar 15 - Thu, Mar 25

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

17h 00m1 stop Newark

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

41h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$715United Airlines

Mon, Mar 1 - Wed, Mar 10

9:10 pm - 10:00 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 5:00 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 05m1 stop Paris Charles de Gaulle

$715Delta

Tue, Mar 2 - Tue, Mar 16

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

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 5:00 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 05m1 stop Paris Charles de Gaulle

$715Delta

Tue, Mar 16 - Thu, Mar 25

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

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 5:00 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 05m1 stop Paris Charles de Gaulle

$715Delta

Tue, Mar 16 - Tue, Mar 23

4:00 pm - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

12h 30m1 stop Newark

6:00 am - 11:54 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

21h 54m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$717United Airlines

Sun, Mar 7 - Wed, Mar 17

7:45 pm - 11:30 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

23h 45m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

1:45 pm - 11:53 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

38h 08m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$741Lufthansa

Wed, Mar 17 - Mon, Mar 22

Cheap last minute flights

Enter your travel dates to find the best prices.

6:14 pm - 10:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

11h 16m1 stop New York John F Kennedy Intl

5:55 am - 12:10 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 15m2 stops Paris Charles de Gaulle Minneapolis St Paul

$838Delta

Wed, Oct 21 - Sun, Nov 1

4:00 pm - 3:25 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

18h 25m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:55 am - 12:10 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 15m2 stops Paris Charles de Gaulle Minneapolis St Paul

$841Delta

Wed, Oct 21 - Sun, Nov 1

6:14 pm - 10:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

11h 16m1 stop New York John F Kennedy Intl

5:55 am - 12:10 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 15m2 stops Paris Charles de Gaulle Minneapolis St Paul

$929Delta

Wed, Oct 21 - Sun, Nov 1

4:00 pm - 3:25 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

18h 25m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:15 am - 12:15 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

18h 00m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,016Delta

Wed, Oct 21 - Sun, Nov 1

10:00 am - 9:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

18h 45m1 stop Newark

6:15 am - 11:59 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 44m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

$1,061Lufthansa

Wed, Oct 21 - Sun, Nov 1

1:55 pm - 7:00 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

12h 05m1 stop Montreal Pierre Elliott Trudeau Intl

4:15 pm - 5:25 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

30h 10m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,148Multiple Airlines

Wed, Oct 21 - Sun, Nov 1

11:48 am - 9:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

16h 57m1 stop Newark

12:35 pm - 11:57 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 22m1 stop Newark

$1,237United Airlines

Wed, Oct 21 - Sun, Nov 1

1:55 pm - 7:00 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

12h 05m1 stop Montreal Pierre Elliott Trudeau Intl

12:35 pm - 11:57 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 22m1 stop Newark

$1,256Lufthansa

Wed, Oct 21 - Sun, Nov 1

11:48 am - 9:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

16h 57m1 stop Newark

12:35 pm - 8:58 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

25h 23m1 stop Newark

$1,266Lufthansa

Wed, Oct 21 - Sun, Nov 1

11:48 am - 9:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

16h 57m1 stop Newark

12:35 pm - 11:57 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 22m1 stop Newark

$1,351United Airlines

Wed, Oct 21 - Sun, Nov 1

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Delta flights from Cincinnati to Porto

Our best Delta deals on Cincinnati to Porto flight tickets

Delta

Mar 16

CVG10:10 pmCincinnati Cinci./N. Kentucky

19h 50m

1 stop

OPO10:00 pmPorto

Mar 23

OPO5:55 amPorto

15h 05m

1 stop

CVG5:00 pmCincinnati Cinci./N. Kentucky

$715

Delta

Mar 17

CVG11:40 amCincinnati Cinci./N. Kentucky

18h 55m

2 stops

OPO10:35 amPorto

Mar 25

OPO5:55 amPorto

15h 05m

1 stop

CVG5:00 pmCincinnati Cinci./N. Kentucky

$719

Delta

Mar 17

CVG2:25 pmCincinnati Cinci./N. Kentucky

16h 10m

2 stops

OPO10:35 amPorto

Mar 24

OPO5:00 amPorto

16h 13m

2 stops

CVG5:13 pmCincinnati Cinci./N. Kentucky

$722

United Airlines flights from Cincinnati to Porto

Our best United Airlines deals on Cincinnati to Porto flight tickets

United Airlines

Mar 14

CVG4:00 pmCincinnati Cinci./N. Kentucky

13h 30m

1 stop

OPO9:30 amPorto

Mar 23

OPO6:00 amPorto

21h 53m

2 stops

CVG11:53 pmCincinnati Cinci./N. Kentucky

$717

United Airlines

Mar 14

CVG6:00 amCincinnati Cinci./N. Kentucky

23h 30m

2 stops

OPO9:30 amPorto

Mar 26

OPO6:00 amPorto

31h 55m

2 stops

CVG9:55 amCincinnati Cinci./N. Kentucky

$721

United Airlines

Dec 1

CVG12:00 pmCincinnati Cinci./N. Kentucky

16h 30m

1 stop

OPO9:30 amPorto

Dec 8

OPO6:00 amPorto

23h 15m

2 stops

CVG12:15 amCincinnati Cinci./N. Kentucky

$729

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/1

6:40 pm-12:50 pm

2 stops37h 10m

Porto

Wed 3/10

6:00 am-11:49 pm

2 stops22h 49m

$706

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/15

3:00 pm-11:45 am

2 stops16h 45m

Porto

Thu 3/25

6:00 am-6:00 pm

2 stops40h 00m

$711

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/15

6:40 pm-10:25 pm

2 stops23h 45m

Porto

Thu 3/25

6:00 am-6:00 pm

2 stops40h 00m

$714

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/15

12:30 pm-9:30 am

1 stop17h 00m

Porto

Thu 3/25

6:00 am-6:00 pm

2 stops40h 00m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/1

11:30 am-9:30 am

1 stop17h 00m

Porto

Wed 3/10

6:00 am-6:00 pm

2 stops41h 00m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/2

9:10 pm-10:00 pm

1 stop19h 50m

Porto

Tue 3/16

5:55 am-5:00 pm

1 stop15h 05m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/16

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Thu 3/25

5:55 am-5:00 pm

1 stop15h 05m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/16

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Tue 3/23

5:55 am-5:00 pm

1 stop15h 05m

$715

Quickest round-trip

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 3/7

4:00 pm-9:30 am

1 stop12h 30m

Porto

Wed 3/17

6:00 am-11:54 pm

2 stops21h 54m

$717

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 3/17

7:45 pm-11:30 pm

2 stops23h 45m

Porto

Mon 3/22

1:45 pm-11:53 pm

2 stops38h 08m

$741

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

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 February instead. Flights to Porto in February, while not as cheap as those in December, still average around $490.

Can stopping save me money on Cincinnati to Porto flights?

You could potentially save up to 26% 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	$331
Fastest flight time	11h 35m
Direct flights	None

The best one-way flight to Porto from Cincinnati in the past 72 hours is $331. The best round-trip flight deal from Cincinnati to Porto found on momondo in the last 72 hours is $706.

The fastest flight from Cincinnati to Porto takes 11h 35m

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 11h 35m.
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 October 2026, there are 2 operators 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 58% of the total bookings. Other popular airlines include Delta with 42%.

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 $490	Free Cancellation	Rating 7.3 10,388 reviews		Search United Airlines flights
Delta	PriceFrom $574	Free Cancellation	Rating 7.8 8,652 reviews		Search Delta flights

Coimbra

Braga

Vila Nova de Gaia

Aveiro

Pinhao

Matosinhos

Esposende

Chaves

Viseu

Espinho

Arcos de Valdevez

Guimarães

Lamego

Ponte de Lima

Caminha

Penafiel

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

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Cheap flights from Cincinnati to Porto from $331

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 3/24. 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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Delta flights from Cincinnati to Porto

Our best Delta 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 cheapest month to fly to Porto?

Can stopping save me money on Cincinnati to Porto flights?

When to book flights from Cincinnati to Porto

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

Best Price Found

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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

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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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