Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Cincinnati to Porto from $356

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 11/1. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Cincinnati to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:41 am - 7:40 am
CVG
-
OPO
17h 59m
2 stops
American Airlines Logo
8:20 am - 8:12 pm
OPO
-
CVG
16h 52m
2 stops
$846American Airlines
Thu, Nov 5 - Thu, Nov 12
United Airlines Logo
2:15 pm - 7:00 am
CVG
-
OPO
11h 45m
1 stop
United Airlines Logo
6:00 am - 6:00 pm
OPO
-
CVG
41h 00m
2 stops
$853United Airlines
Wed, Oct 21 - Sun, Nov 1
United Airlines Logo
2:15 pm - 7:00 am
CVG
-
OPO
11h 45m
1 stop
United Airlines Logo
6:00 am - 8:17 pm
OPO
-
CVG
19h 17m
2 stops
$855United Airlines
Wed, Oct 21 - Sun, Nov 1
United Airlines Logo
5:00 pm - 9:30 am
CVG
-
OPO
11h 30m
1 stop
United Airlines Logo
12:30 pm - 8:32 am
OPO
-
CVG
25h 02m
2 stops
$856United Airlines
Thu, Nov 5 - Thu, Nov 12
American Airlines Logo
2:59 pm - 11:45 am
CVG
-
OPO
15h 46m
2 stops
American Airlines Logo
12:25 pm - 12:59 am
OPO
-
CVG
17h 34m
2 stops
$857American Airlines
Tue, Aug 18 - Wed, Sep 2
United Airlines Logo
11:52 am - 7:00 am
CVG
-
OPO
14h 08m
2 stops
United Airlines Logo
6:00 am - 8:17 pm
OPO
-
CVG
19h 17m
2 stops
$859United Airlines
Wed, Oct 21 - Sun, Nov 1
United Airlines Logo
10:22 am - 7:00 am
CVG
-
OPO
15h 38m
2 stops
United Airlines Logo
6:00 am - 8:17 pm
OPO
-
CVG
19h 17m
2 stops
$860United Airlines
Wed, Oct 21 - Sun, Nov 1
United Airlines Logo
7:25 am - 9:30 am
CVG
-
OPO
21h 05m
2 stops
United Airlines Logo
12:30 pm - 11:58 pm
OPO
-
CVG
16h 28m
2 stops
$861United Airlines
Thu, Nov 5 - Thu, Nov 12
United Airlines Logo
1:55 pm - 7:00 am
CVG
-
OPO
12h 05m
1 stop
United Airlines Logo
12:45 pm - 8:43 pm
OPO
-
CVG
36h 58m
2 stops
$888United Airlines
Tue, Aug 18 - Wed, Sep 2
United Airlines Logo
1:55 pm - 7:00 am
CVG
-
OPO
12h 05m
1 stop
United Airlines Logo
12:00 pm - 12:03 am
OPO
-
CVG
17h 03m
2 stops
$900United Airlines
Tue, Aug 18 - Wed, Sep 2

Iberia flights from Cincinnati to Porto

Our best Iberia deals on Cincinnati to Porto flight tickets
Iberia
Oct 28
CVG2:00 pmCincinnati Cinci./N. Kentucky
13h 40m
2 stops
OPO7:40 amPorto
Oct 29
OPO9:55 pmPorto
26h 00m
2 stops
CVG7:55 pmCincinnati Cinci./N. Kentucky
$903
Iberia
Oct 1
CVG12:27 pmCincinnati Cinci./N. Kentucky
14h 13m
2 stops
OPO7:40 amPorto
Oct 12
OPO8:40 pmPorto
29h 32m
2 stops
CVG9:12 pmCincinnati Cinci./N. Kentucky
$924
Iberia
Sep 19
CVG12:27 pmCincinnati Cinci./N. Kentucky
18h 18m
2 stops
OPO11:45 amPorto
Sep 28
OPO8:40 pmPorto
29h 25m
2 stops
CVG9:05 pmCincinnati Cinci./N. Kentucky
$1,038

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 38m
2 stops
CVG4:58 pmCincinnati Cinci./N. Kentucky
$917
SWISS
Sep 25
CVG10:50 amCincinnati Cinci./N. Kentucky
26h 40m
2 stops
OPO6:30 pmPorto
Oct 2
OPO8:40 amPorto
37h 18m
2 stops
CVG4:58 pmCincinnati Cinci./N. Kentucky
$977

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 May 19, 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

Thu 11/5

8:41 am-7:40 am

2 stops17h 59m

Porto

Thu 11/12

8:20 am-8:12 pm

2 stops16h 52m

$846

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/21

2:15 pm-7:00 am

1 stop11h 45m

Porto

Sun 11/1

6:00 am-6:00 pm

2 stops41h 00m

$853

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/21

2:15 pm-7:00 am

1 stop11h 45m

Porto

Sun 11/1

6:00 am-8:17 pm

2 stops19h 17m

$855

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Thu 11/5

5:00 pm-9:30 am

1 stop11h 30m

Porto

Thu 11/12

12:30 pm-8:32 am

2 stops25h 02m

$856

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 8/18

2:59 pm-11:45 am

2 stops15h 46m

Porto

Wed 9/2

12:25 pm-12:59 am

2 stops17h 34m

$857

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/21

11:52 am-7:00 am

2 stops14h 08m

Porto

Sun 11/1

6:00 am-8:17 pm

2 stops19h 17m

$859

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 10/21

10:22 am-7:00 am

2 stops15h 38m

Porto

Sun 11/1

6:00 am-8:17 pm

2 stops19h 17m

$860

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Thu 11/5

7:25 am-9:30 am

2 stops21h 05m

Porto

Thu 11/12

12:30 pm-11:58 pm

2 stops16h 28m

$861

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 8/18

1:55 pm-7:00 am

1 stop12h 05m

Porto

Wed 9/2

12:45 pm-8:43 pm

2 stops36h 58m

$888
Quickest round-trip

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 8/18

1:55 pm-7:00 am

1 stop12h 05m

Porto

Wed 9/2

12:00 pm-12:03 am

2 stops17h 03m

$900

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $557.

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

11h 45m

Direct flights

None
The fastest flight from Cincinnati to Porto takes 11h 45m
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 45m.

  • 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
9,733 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
Lamego
Esposende
Chaves
Pinhao
Espinho
Guimarães
Arcos de Valdevez
Viseu
Ponte de Lima
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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 6/18
Thu 6/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal