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Cheap flights from Cincinnati to Porto from $314

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 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cincinnati to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
8:15 pm - 10:00 pm
CVG
-
OPO
21h 45m
1 stop
Delta Logo
5:55 am - 4:10 pm
OPO
-
CVG
15h 15m
1 stop
$743Delta
Tue, Oct 27 - Thu, Nov 5
Delta Logo
8:15 pm - 10:00 pm
CVG
-
OPO
21h 45m
1 stop
Delta Logo
5:00 am - 6:46 pm
OPO
-
CVG
18h 46m
2 stops
$746Delta
Tue, Oct 27 - Thu, Nov 5
Delta Logo
12:00 pm - 10:35 am
CVG
-
OPO
18h 35m
2 stops
Delta Logo
5:00 am - 5:58 pm
OPO
-
CVG
17h 58m
2 stops
$750Delta
Tue, Oct 27 - Thu, Nov 5
Multiple Airlines Logo
1:55 pm - 7:00 am
CVG
-
OPO
12h 05m
1 stop
Multiple Airlines Logo
6:00 am - 5:15 pm
OPO
-
CVG
16h 15m
2 stops
$789Multiple Airlines
Wed, Oct 21 - Sun, Nov 1
United Airlines Logo
5:30 am - 7:00 am
CVG
-
OPO
20h 30m
2 stops
United Airlines Logo
6:00 am - 5:15 pm
OPO
-
CVG
16h 15m
2 stops
$798United Airlines
Wed, Oct 21 - Sun, Nov 1
Multiple Airlines Logo
4:30 pm - 7:00 am
CVG
-
OPO
33h 30m
2 stops
Multiple Airlines Logo
7:20 pm - 5:00 pm
OPO
-
CVG
50h 40m
2 stops
$867Multiple Airlines
Mon, Oct 12 - Sun, Oct 18
United Airlines Logo
11:52 am - 7:00 am
CVG
-
OPO
38h 08m
2 stops
United Airlines Logo
11:20 am - 8:16 pm
OPO
-
CVG
61h 56m
3 stops
$885United Airlines
Mon, Oct 12 - Sun, Oct 18
Air Canada Logo
1:55 pm - 7:00 am
CVG
-
OPO
12h 05m
1 stop
Air Canada Logo
11:20 am - 8:43 pm
OPO
-
CVG
38h 23m
2 stops
$886Air Canada
Tue, Aug 18 - Wed, Sep 2
Air Canada Logo
1:55 pm - 7:00 am
CVG
-
OPO
12h 05m
1 stop
Air Canada Logo
11:20 am - 8:43 pm
OPO
-
CVG
38h 23m
2 stops
$887Air Canada
Tue, Aug 18 - Wed, Sep 2
Air Canada Logo
7:00 am - 7:00 am
CVG
-
OPO
19h 00m
2 stops
Air Canada Logo
11:20 am - 11:26 am
OPO
-
CVG
29h 06m
2 stops
$891Air Canada
Tue, Aug 18 - Wed, Sep 2

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Lufthansa flights from Cincinnati to Porto

Our best Lufthansa deals on Cincinnati to Porto flight tickets
Lufthansa
Aug 11
CVG1:55 pmCincinnati Cinci./N. Kentucky
12h 05m
1 stop
OPO7:00 amPorto
Aug 19
OPO8:55 amPorto
19h 54m
1 stop
CVG11:49 pmCincinnati Cinci./N. Kentucky
$956
Lufthansa
Sep 24
CVG10:16 amCincinnati Cinci./N. Kentucky
32h 09m
2 stops
OPO11:25 pmPorto
Oct 1
OPO12:10 pmPorto
16h 49m
2 stops
CVG11:59 pmCincinnati Cinci./N. Kentucky
$972
Lufthansa
Sep 29
CVG6:08 pmCincinnati Cinci./N. Kentucky
24h 17m
2 stops
OPO11:25 pmPorto
Oct 4
OPO6:20 amPorto
39h 40m
2 stops
CVG5:00 pmCincinnati Cinci./N. Kentucky
$983

SWISS flights from Cincinnati to Porto

Our best SWISS deals on Cincinnati to Porto flight tickets
SWISS
Sep 19
CVG4:15 pmCincinnati Cinci./N. Kentucky
38h 45m
2 stops
OPO12:00 pmPorto
Sep 28
OPO7:20 pmPorto
26h 40m
2 stops
CVG5:00 pmCincinnati Cinci./N. Kentucky
$959
SWISS
Sep 19
CVG4:15 pmCincinnati Cinci./N. Kentucky
21h 15m
2 stops
OPO6:30 pmPorto
Sep 28
OPO7:20 pmPorto
26h 40m
2 stops
CVG5:00 pmCincinnati Cinci./N. Kentucky
$975

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 9, 2026.
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

Cheapest round-trip

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

8:15 pm-10:00 pm

1 stop21h 45m

Porto

Thu 11/5

5:55 am-4:10 pm

1 stop15h 15m

$743

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

8:15 pm-10:00 pm

1 stop21h 45m

Porto

Thu 11/5

5:00 am-6:46 pm

2 stops18h 46m

$746

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

12:00 pm-10:35 am

2 stops18h 35m

Porto

Thu 11/5

5:00 am-5:58 pm

2 stops17h 58m

$750
Quickest round-trip

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/21

1:55 pm-7:00 am

1 stop12h 05m

Porto

Sun 11/1

6:00 am-5:15 pm

2 stops16h 15m

$789

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/21

5:30 am-7:00 am

2 stops20h 30m

Porto

Sun 11/1

6:00 am-5:15 pm

2 stops16h 15m

$798

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 10/12

4:30 pm-7:00 am

2 stops33h 30m

Porto

Sun 10/18

7:20 pm-5:00 pm

2 stops50h 40m

$867

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 10/12

11:52 am-7:00 am

2 stops38h 08m

Porto

Sun 10/18

11:20 am-8:16 pm

3 stops61h 56m

$885

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 8/18

1:55 pm-7:00 am

1 stop12h 05m

Porto

Wed 9/2

11:20 am-8:43 pm

2 stops38h 23m

$886

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 8/18

1:55 pm-7:00 am

1 stop12h 05m

Porto

Wed 9/2

11:20 am-8:43 pm

2 stops38h 23m

$887

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 8/18

7:00 am-7:00 am

2 stops19h 00m

Porto

Wed 9/2

11:20 am-11:26 am

2 stops29h 06m

$891

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 7% 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

Fastest flight time

12h 05m

Direct flights

None
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?

  • 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
United AirlinesPriceFrom $531Free CancellationRating
7.4
9,955 reviews
Search United Airlines flights

Traveling to a place near Porto?

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

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