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$334+ Cheap flights from Cincinnati (CVG) to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — OPO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Cincinnati to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Cincinnati (CVG) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$738
(United Airlines)

One-way from

$334
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$1,258
From Cincinnati Cinci./N. Kentucky to Porto
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One-way flight from Cincinnati Cinci./N. Kentucky to Porto
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Highest demand for flights based on searches. 2% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Cincinnati to Porto

Cheapest flights from Cincinnati to Porto
Explore the most affordable flight options available from Cincinnati to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:41 pmCVG - OPO
2 stops34h 34mUnited Airlines
Tue 10/2812:30 pmOPO - CVG
2 stops25h 00mUnited Airlines
Deal found 6/11$738
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:30 pmCVG - OPO
1 stop14h 50mAir Canada
Wed 10/16:00 amOPO - CVG
2 stops38h 47mAir Canada
Deal found 6/12$741
This KLM deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:30 pmCVG - OPO
1 stop16h 00mKLM
Wed 10/226:15 amOPO - CVG
2 stops15h 54mKLM
Deal found 6/10$800
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/164:30 pmCVG - OPO
2 stops38h 30mMultiple Airlines
Sat 8/237:20 pmOPO - CVG
2 stops26h 30mMultiple Airlines
Deal found 6/10$833
This KAYAK deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:07 pmCVG - OPO
2 stops34h 28mBritish Airways
Thu 10/28:15 amOPO - CVG
2 stops19h 54mBritish Airways
Deal found 6/10$835
This Gurufare deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:12 pmCVG - OPO
2 stops35h 08mLufthansa
Sat 10/1111:05 amOPO - CVG
2 stops41h 54mLufthansa
Deal found 6/12$871
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:20 pmCVG - OPO
1 stop33h 05mDelta
Tue 7/296:35 amOPO - CVG
1 stop13h 35mDelta
Deal found 6/12$937
This Air France deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:20 pmCVG - OPO
1 stop16h 10mAir France
Sat 8/237:05 pmOPO - CVG
1 stop25h 05mAir France
Deal found 6/10$953
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/262:13 pmCVG - OPO
2 stops16h 27mAmerican Airlines
Sat 10/48:15 amOPO - CVG
2 stops19h 57mAmerican Airlines
Deal found 6/12$987
This SWISS deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/302:10 pmCVG - OPO
2 stops40h 20mSWISS
Mon 7/287:20 pmOPO - CVG
2 stops26h 32mSWISS
Deal found 6/12$1,161

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Cincinnati to Porto that are best for you.

Fly from

Cincinnati

Fly to

Porto

Route

Depart

Return

Price

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 10/12

7:41 pm-11:15 am

2 stops34h 34m

Porto

Tue 10/28

12:30 pm-9:30 am

2 stops25h 00m

$738

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-3:47 pm

2 stops38h 47m

$741

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/7

6:30 pm-3:30 pm

1 stop16h 00m

Porto

Wed 10/22

6:15 am-5:09 pm

2 stops15h 54m

$800

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 8/16

4:30 pm-12:00 pm

2 stops38h 30m

Porto

Sat 8/23

7:20 pm-4:50 pm

2 stops26h 30m

$833

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Thu 9/25

4:07 pm-7:35 am

2 stops34h 28m

Porto

Thu 10/2

8:15 am-11:09 pm

2 stops19h 54m

$835

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 9/20

6:12 pm-10:20 am

2 stops35h 08m

Porto

Sat 10/11

11:05 am-11:59 pm

2 stops41h 54m

$871

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Wed 7/2

6:20 pm-8:25 am

1 stop33h 05m

Porto

Tue 7/29

6:35 am-3:10 pm

1 stop13h 35m

$937

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sat 8/16

6:20 pm-3:30 pm

1 stop16h 10m

Porto

Sat 8/23

7:05 pm-3:10 pm

1 stop25h 05m

$953

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Fri 9/26

2:13 pm-11:40 am

2 stops16h 27m

Porto

Sat 10/4

8:15 am-11:12 pm

2 stops19h 57m

$987

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 6/30

2:10 pm-11:30 am

2 stops40h 20m

Porto

Mon 7/28

7:20 pm-4:52 pm

2 stops26h 32m

$1,161

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 15 results
1
2

Best time to book a flight from Cincinnati to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Cincinnati with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cincinnati to Porto

What is the cheapest month to book a flight from Cincinnati to Porto?

Currently, January is the cheapest month in which you can book a flight from Cincinnati to Porto (average of $523). Flying from Cincinnati to Porto in June is currently the most expensive (average of $1,047). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CVG to OPO?

Find hourly flight availability from Cincinnati to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from Cincinnati to Porto in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Cincinnati to Porto, such as Delta, KLM and Air France. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,531 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Cincinnati to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Cincinnati to Porto round-trip?

    United Airlines, at $738, was found to be the cheapest airline from Cincinnati to Porto.Alternate airlines to your destination round-trip include Air Canada and KLM. United Airlines is currently priced 25% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Cincinnati to Porto one-way?

    One-way options have recently been found by users for as low as $457 on KLM. Other airlines that offer cheap prices include Air France from $822 and Delta from $826 one-way.

  • Can I find deals for flights from Cincinnati to Porto that include hotel bookings?

    Yes. In addition to deals on Cincinnati to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cincinnati to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cincinnati to Porto.

  • Can I find deals for business class flights from Cincinnati to Porto?

    Yes. Cheapflights offers flight deals from Cincinnati to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cincinnati to Porto?

    Currently, January is the cheapest month in which you can book a flight from Cincinnati to Porto (average of $523). Flying from Cincinnati to Porto in June is currently the most expensive (average of $1,047). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Cincinnati?

Book flights to Cincinnati if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Top 4 airlines flying from Cincinnati to Porto

Discover the top 4 airlines that operate flights from Cincinnati to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$590Average$1,101FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$779Average$992FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$783Average$909FlexibilityNo cancel feeOn-time71%
DeltaCheapest$822Average$1,036FlexibilityNo cancel feeOn-timeN/A

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