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Cheap flights from Cincinnati to Porto from $676

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Cincinnati to Porto departing on 11/8. 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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0 bags

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Find the cheapest flights from Cincinnati to Porto

Cheap round-trip flights

Logo
6:40 pm - 11:40 amCVG-OPO
36h 00m2 stops
Logo
12:00 pm - 8:30 pmOPO-CVG
37h 30m2 stops
$676
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Sat, Nov 8 - Sat, Nov 15
United Airlines Logo
6:20 pm - 9:30 amCVG-OPO
10h 10m1 stop
United Airlines Logo
6:00 am - 8:30 pmOPO-CVG
19h 30m2 stops
$690United Airlines
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Sat, Nov 8 - Sat, Nov 15
Air Canada Logo
1:30 pm - 9:20 amCVG-OPO
14h 50m1 stop
Air Canada Logo
6:00 am - 8:12 pmOPO-CVG
19h 12m2 stops
$741Air Canada
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Wed, Sep 24 - Wed, Oct 1
Air Canada Logo
1:30 pm - 9:20 amCVG-OPO
14h 50m1 stop
Air Canada Logo
6:00 am - 8:12 pmOPO-CVG
19h 12m2 stops
$742Air Canada
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Wed, Sep 24 - Wed, Oct 1
United Airlines Logo
1:30 pm - 9:20 amCVG-OPO
14h 50m1 stop
United Airlines Logo
6:00 am - 4:52 pmOPO-CVG
15h 52m2 stops
$745United Airlines
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Wed, Sep 24 - Wed, Oct 1
Air Canada Logo
7:00 am - 9:20 amCVG-OPO
21h 20m2 stops
Air Canada Logo
6:00 am - 3:47 pmOPO-CVG
38h 47m2 stops
$746Air Canada
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Wed, Sep 24 - Wed, Oct 1
Lufthansa Logo
7:41 pm - 10:45 pmCVG-OPO
22h 04m2 stops
Lufthansa Logo
6:15 am - 11:59 pmOPO-CVG
22h 44m2 stops
$802Lufthansa
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Wed, Sep 24 - Fri, Oct 10
Iberia Logo
11:22 am - 7:35 amCVG-OPO
15h 13m2 stops
Iberia Logo
8:35 pm - 11:02 pmOPO-CVG
31h 27m2 stops
$839Iberia
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Mon, Aug 18 - Sun, Aug 24
Lufthansa Logo
6:12 pm - 10:20 amCVG-OPO
35h 08m2 stops
Lufthansa Logo
6:15 am - 11:59 pmOPO-CVG
22h 44m2 stops
$852Lufthansa
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Sat, Sep 20 - Sat, Oct 11
KLM Logo
2:00 pm - 10:40 amCVG-OPO
15h 40m2 stops
KLM Logo
11:25 am - 11:40 pmOPO-CVG
17h 15m2 stops
$927KLM
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Wed, Oct 1 - Fri, Oct 10

United Airlines flights from Cincinnati to Porto

Our best United Airlines deals on Cincinnati to Porto flight tickets
United Airlines
Nov 8
CVG6:20 pmCincinnati Cinci./N. Kentucky
10h 10m
1 stop
OPO9:30 amPorto
Nov 15
OPO6:00 amPorto
19h 30m
2 stops
CVG8:30 pmCincinnati Cinci./N. Kentucky
$690
Find similar
United Airlines
Sep 24
CVG1:30 pmCincinnati Cinci./N. Kentucky
14h 50m
1 stop
OPO9:20 amPorto
Oct 1
OPO6:00 amPorto
15h 52m
2 stops
CVG4:52 pmCincinnati Cinci./N. Kentucky
$745
Find similar
United Airlines
Sep 24
CVG7:00 amCincinnati Cinci./N. Kentucky
21h 20m
2 stops
OPO9:20 amPorto
Oct 1
OPO6:00 amPorto
22h 52m
2 stops
CVG11:52 pmCincinnati Cinci./N. Kentucky
$750
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Lufthansa flights from Cincinnati to Porto

Our best Lufthansa deals on Cincinnati to Porto flight tickets
Lufthansa
Sep 24
CVG7:41 pmCincinnati Cinci./N. Kentucky
22h 04m
2 stops
OPO10:45 pmPorto
Oct 10
OPO6:15 amPorto
22h 44m
2 stops
CVG11:59 pmCincinnati Cinci./N. Kentucky
$802
Find similar
Lufthansa
Sep 20
CVG6:12 pmCincinnati Cinci./N. Kentucky
35h 08m
2 stops
OPO10:20 amPorto
Oct 11
OPO6:15 amPorto
22h 44m
2 stops
CVG11:59 pmCincinnati Cinci./N. Kentucky
$852
Find similar
Lufthansa
Sep 20
CVG6:12 pmCincinnati Cinci./N. Kentucky
35h 08m
2 stops
OPO10:20 amPorto
Oct 11
OPO11:05 amPorto
34h 47m
2 stops
CVG4:52 pmCincinnati Cinci./N. Kentucky
$863
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momondo 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Cincinnati to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 11/8

6:40 pm-11:40 am

2 stops36h 00m

Porto

Sat 11/15

12:00 pm-8:30 pm

2 stops37h 30m

$676

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 11/8

6:20 pm-9:30 am

1 stop10h 10m

Porto

Sat 11/15

6:00 am-8:30 pm

2 stops19h 30m

$690

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

1:30 pm-9:20 am

1 stop14h 50m

Porto

Wed 10/1

6:00 am-8:12 pm

2 stops19h 12m

$741

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

1:30 pm-9:20 am

1 stop14h 50m

Porto

Wed 10/1

6:00 am-8:12 pm

2 stops19h 12m

$742

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

1:30 pm-9:20 am

1 stop14h 50m

Porto

Wed 10/1

6:00 am-4:52 pm

2 stops15h 52m

$745

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

7:00 am-9:20 am

2 stops21h 20m

Porto

Wed 10/1

6:00 am-3:47 pm

2 stops38h 47m

$746

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 9/24

7:41 pm-10:45 pm

2 stops22h 04m

Porto

Fri 10/10

6:15 am-11:59 pm

2 stops22h 44m

$802

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 8/18

11:22 am-7:35 am

2 stops15h 13m

Porto

Sun 8/24

8:35 pm-11:02 pm

2 stops31h 27m

$839

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 9/20

6:12 pm-10:20 am

2 stops35h 08m

Porto

Sat 10/11

6:15 am-11:59 pm

2 stops22h 44m

$852

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/1

2:00 pm-10:40 am

2 stops15h 40m

Porto

Fri 10/10

11:25 am-11:40 pm

2 stops17h 15m

$927

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto from

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 November is, on average, the cheapest month to fly to Porto from Cincinnati, with most prices found around $743. If you aren’t able to travel during the month of November, then book flights to Porto from Cincinnati during January instead. Flights to Porto in January, while not as cheap as those in November, still average around $772.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Wednesday when prices can be found for as low as $918. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,497. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the morning is the cheapest time of day to fly from Cincinnati to Porto when you can find flight prices for as low as $884. Flying to Porto in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,155 on average. Flights to Porto from Cincinnati in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Cincinnati to Porto flights?

You could potentially save up to 24% 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

$676

Fastest flight time

10h 10m

Direct flights

None

Airports in Porto

1 airport
The best flight deal from Cincinnati to Porto found on momondo in the last 72 hours is $676
The fastest flight from Cincinnati to Porto takes 10h 10m
There are no direct flights from Cincinnati to Porto. Popular non-direct route for this connection is Cincinnati Cinci./N. Kentucky Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)
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  • 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 10h 10m.

  • 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?

  • 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?

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
KLMPriceFrom $590Free CancellationRating
7.8
1,383 reviews
Search KLM flights
United AirlinesPriceFrom $750Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $783Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $824Free CancellationRating
8.0
7,981 reviews
Search Delta flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Vila Nova de Gaia
Coimbra
Matosinhos
Braga
Caminha
Guimarães
Chaves
Esposende
Lamego
Arcos de Valdevez
Espinho
Viseu
Ponte de Lima
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Pinhao
Baiao

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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