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Cheap flights from Cincinnati to Porto from $390

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 11/23. 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

Enter your travel dates to find the best prices.
Lufthansa Logo
7:45 pm - 11:40 pmCVG-OPO
22h 55m2 stops
Lufthansa Logo
6:00 am - 11:54 pmOPO-CVG
22h 54m2 stops
$484Lufthansa
Find Deal
Thu, Dec 4 - Thu, Dec 11
KLM Logo
7:15 pm - 10:30 amCVG-OPO
34h 15m1 stop
KLM Logo
4:10 pm - 4:30 pmOPO-CVG
29h 20m2 stops
$538KLM
Find Deal
Thu, Dec 4 - Thu, Dec 11
Lufthansa Logo
11:20 am - 1:15 pmCVG-OPO
20h 55m2 stops
Lufthansa Logo
6:00 am - 8:21 pmOPO-CVG
18h 21m2 stops
$579Lufthansa
Find Deal
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
4:46 pm - 9:30 amCVG-OPO
11h 44m1 stop
Multiple Airlines Logo
6:00 am - 7:01 pmOPO-CVG
17h 01m2 stops
$582Multiple Airlines
Find Deal
Wed, Mar 4 - Wed, Mar 18
United Airlines Logo
6:51 pm - 9:30 amCVG-OPO
9h 39m1 stop
United Airlines Logo
12:35 pm - 9:56 pmOPO-CVG
13h 21m1 stop
$593United Airlines
Find Deal
Wed, Mar 4 - Wed, Mar 18
United Airlines Logo
10:15 am - 9:30 amCVG-OPO
18h 15m2 stops
United Airlines Logo
6:00 am - 8:45 pmOPO-CVG
19h 45m2 stops
$623United Airlines
Find Deal
Fri, Nov 28 - Thu, Dec 11
United Airlines Logo
4:46 pm - 9:30 amCVG-OPO
12h 44m1 stop
United Airlines Logo
6:00 am - 8:21 pmOPO-CVG
18h 21m2 stops
$633United Airlines
Find Deal
Sun, Mar 8 - Sun, Mar 15
Lufthansa Logo
4:10 pm - 3:15 pmCVG-OPO
19h 05m2 stops
Lufthansa Logo
6:00 am - 8:21 pmOPO-CVG
18h 21m2 stops
$638Lufthansa
Find Deal
Sun, Mar 8 - Sun, Mar 15
Multiple Airlines Logo
7:10 pm - 12:00 pmCVG-OPO
11h 50m1 stop
Multiple Airlines Logo
6:35 pm - 2:55 pmOPO-CVG
25h 20m1 stop
$1,018Multiple Airlines
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Fri, Nov 28 - Thu, Dec 11
Delta Logo
9:58 am - 10:50 amCVG-OPO
19h 52m2 stops
Delta Logo
7:35 am - 7:53 pmOPO-CVG
17h 18m2 stops
$3,848Delta
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Wed, Feb 4 - Wed, Mar 4

United Airlines flights from Cincinnati to Porto

Our best United Airlines deals on Cincinnati to Porto flight tickets
United Airlines
Mar 4
CVG6:51 pmCincinnati Cinci./N. Kentucky
9h 39m
1 stop
OPO9:30 amPorto
Mar 18
OPO12:35 pmPorto
13h 21m
1 stop
CVG9:56 pmCincinnati Cinci./N. Kentucky
$593
Find similar
United Airlines
Nov 28
CVG10:15 amCincinnati Cinci./N. Kentucky
18h 15m
2 stops
OPO9:30 amPorto
Dec 11
OPO6:00 amPorto
19h 45m
2 stops
CVG8:45 pmCincinnati Cinci./N. Kentucky
$623
Find similar
United Airlines
Mar 8
CVG4:46 pmCincinnati Cinci./N. Kentucky
12h 44m
1 stop
OPO9:30 amPorto
Mar 15
OPO6:00 amPorto
18h 21m
2 stops
CVG8:21 pmCincinnati Cinci./N. Kentucky
$633
Find similar

Lufthansa flights from Cincinnati to Porto

Our best Lufthansa deals on Cincinnati to Porto flight tickets
Lufthansa
Dec 4
CVG7:45 pmCincinnati Cinci./N. Kentucky
22h 55m
2 stops
OPO11:40 pmPorto
Dec 11
OPO6:00 amPorto
22h 54m
2 stops
CVG11:54 pmCincinnati Cinci./N. Kentucky
$484
Find similar
Lufthansa
Mar 4
CVG11:20 amCincinnati Cinci./N. Kentucky
20h 55m
2 stops
OPO1:15 pmPorto
Mar 18
OPO6:00 amPorto
18h 21m
2 stops
CVG8:21 pmCincinnati Cinci./N. Kentucky
$579
Find similar
Lufthansa
Mar 8
CVG4:10 pmCincinnati Cinci./N. Kentucky
19h 05m
2 stops
OPO3:15 pmPorto
Mar 15
OPO6:00 amPorto
18h 21m
2 stops
CVG8:21 pmCincinnati Cinci./N. Kentucky
$638
Find similar

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 November 6, 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

Thu 12/4

7:45 pm-11:40 pm

2 stops22h 55m

Porto

Thu 12/11

6:00 am-11:54 pm

2 stops22h 54m

$484

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Thu 12/4

7:15 pm-10:30 am

1 stop34h 15m

Porto

Thu 12/11

4:10 pm-4:30 pm

2 stops29h 20m

$538

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 3/4

11:20 am-1:15 pm

2 stops20h 55m

Porto

Wed 3/18

6:00 am-8:21 pm

2 stops18h 21m

$579

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 3/4

4:46 pm-9:30 am

1 stop11h 44m

Porto

Wed 3/18

6:00 am-7:01 pm

2 stops17h 01m

$582

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 3/4

6:51 pm-9:30 am

1 stop9h 39m

Porto

Wed 3/18

12:35 pm-9:56 pm

1 stop13h 21m

$593

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Fri 11/28

10:15 am-9:30 am

2 stops18h 15m

Porto

Thu 12/11

6:00 am-8:45 pm

2 stops19h 45m

$623

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 3/8

4:46 pm-9:30 am

1 stop12h 44m

Porto

Sun 3/15

6:00 am-8:21 pm

2 stops18h 21m

$633

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 3/8

4:10 pm-3:15 pm

2 stops19h 05m

Porto

Sun 3/15

6:00 am-8:21 pm

2 stops18h 21m

$638

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Fri 11/28

7:10 pm-12:00 pm

1 stop11h 50m

Porto

Thu 12/11

6:35 pm-2:55 pm

1 stop25h 20m

$1,018

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 2/4

9:58 am-10:50 am

2 stops19h 52m

Porto

Wed 3/4

7:35 am-7:53 pm

2 stops17h 18m

$3,848

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 typical price of a round-trip flight between Cincinnati and Porto?

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 $656. If you aren’t able to travel during the month of November, then book flights to Porto from Cincinnati during February instead. Flights to Porto in February, while not as cheap as those in November, still average around $709.

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 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

Direct flights

None
There are no direct flights from Cincinnati to Porto. There are no popular flight routes from Cincinnati to Porto.
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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 9h 39m.

  • 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 $646Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
American AirlinesPriceFrom $775Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
DeltaPriceFrom $829Free CancellationRating
7.9
8,004 reviews
Search Delta 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
Aveiro
Matosinhos
Braga
Lamego
Guimarães
Esposende
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
Curia
Penafiel
Mesao Frio
Mira
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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