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$303+ Cheap flights from Ohio 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — OPO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Ohio to Porto

Keep the following information in mind while searching for Ohio to Porto flight deals. Data was last updated July 31, 2025.

Round-trip from

$594
(United Airlines)

One-way from

$303
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$1,237
From Ohio to Porto
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One-way flight from Ohio to Porto
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Highest demand for flights based on searches. 15% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($96 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ohio to Porto

Cheapest flights from Ohio to Porto
Explore the most affordable flight options available from Ohio to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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 11/2310:27 amDAY - OPO
2 stops18h 03mUnited Airlines
Tue 12/26:00 amOPO - DAY
2 stops18h 17mUnited Airlines
Deal found 7/30$594
This Ovago deal was found by Cheapflights users on 7/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:20 pmCVG - OPO
2 stops20h 20mBritish Airways
Mon 11/178:40 pmOPO - CVG
2 stops28h 31mBritish Airways
Deal found 7/31$600
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 11/106:20 pmCVG - OPO
1 stop10h 10mUnited Airlines
Mon 11/1712:30 pmOPO - CVG
2 stops40h 29mUnited Airlines
Deal found 7/31$608
This Iberia deal was found by Cheapflights users on 7/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:24 amCMH - OPO
2 stops16h 16mIberia
Sun 12/78:20 amOPO - CMH
2 stops18h 46mIberia
Deal found 7/29$658
This Air Canada deal was found by Cheapflights users on 7/30. 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 12/36:15 pmCLE - OPO
2 stops19h 20mAir Canada
Sun 12/76:00 amOPO - CLE
2 stops40h 36mAir Canada
Deal found 7/30$658
This Lufthansa deal was found by Cheapflights users on 7/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:50 pmDAY - OPO
2 stops15h 50mLufthansa
Wed 12/36:00 amOPO - DAY
2 stops22h 30mLufthansa
Deal found 7/30$666
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:40 pmCVG - OPO
2 stops36h 00mMultiple Airlines
Sat 11/1512:00 pmOPO - CVG
2 stops37h 30mMultiple Airlines
Deal found 7/29$676
This Ovago deal was found by Cheapflights users on 7/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/222:55 pmCLE - OPO
2 stops27h 25mLufthansa
Thu 10/3012:35 pmOPO - CLE
1 stop11h 45mLufthansa
Deal found 7/31$707
This Air Canada deal was found by Cheapflights users on 7/31. 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 stops19h 12mAir Canada
Deal found 7/31$741
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/194:28 pmCMH - OPO
1 stop10h 17mUnited Airlines
Fri 9/56:00 amOPO - CMH
2 stops38h 33mUnited Airlines
Deal found 7/29$746
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/56:57 pmCLE - OPO
1 stop9h 48mUnited Airlines
Tue 10/146:00 amOPO - CLE
2 stops38h 23mUnited Airlines
Deal found 7/29$746
This Booking.com deal was found by Cheapflights users on 7/29. 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.
Wed 10/87:37 pmCLE - OPO
2 stops22h 43mMultiple Airlines
Wed 10/226:00 amOPO - CLE
2 stops18h 28mMultiple Airlines
Deal found 7/29$764

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ohio 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 July 31, 2025.
Use the filters below to find and compare flights from Ohio to Porto that are best for you.

Fly from

Ohio

Fly to

Porto

Route

Depart

Return

Price

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 11/23

10:27 am-9:30 am

2 stops18h 03m

Porto

Tue 12/2

6:00 am-7:17 pm

2 stops18h 17m

$594

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 11/10

3:20 pm-4:40 pm

2 stops20h 20m

Porto

Mon 11/17

8:40 pm-8:11 pm

2 stops28h 31m

$600

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 11/10

6:20 pm-9:30 am

1 stop10h 10m

Porto

Mon 11/17

12:30 pm-11:59 pm

2 stops40h 29m

$608

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 11/27

2:50 pm-11:40 am

2 stops15h 50m

Porto

Wed 12/3

6:00 am-11:30 pm

2 stops22h 30m

$666

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

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Wed 10/22

4:10 pm-6:30 pm

2 stops21h 20m

Porto

Thu 10/30

6:00 am-5:36 pm

2 stops39h 36m

$688

PittsburghPorto

PIT - OPO

PITOPO

Pittsburgh

Fri 1/16

5:55 pm-11:50 am

2 stops36h 55m

Porto

Sun 1/25

6:00 am-11:19 pm

2 stops22h 19m

$695

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Wed 10/22

2:55 pm-11:20 pm

2 stops27h 25m

Porto

Thu 10/30

12:35 pm-8:20 pm

1 stop11h 45m

$707

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

ColumbusPorto

CMH - OPO

CMHOPO

Columbus

Tue 8/19

4:28 pm-7:45 am

1 stop10h 17m

Porto

Fri 9/5

6:00 am-3:33 pm

2 stops38h 33m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 46 results
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5

Best time to book a flight from Ohio to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Ohio 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 Ohio to Porto

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

Currently, January is the cheapest month in which you can book a flight from Ohio to Porto (average of $523). Flying from Ohio to Porto in June is currently the most expensive (average of $1,033). 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 OH to OPO?

Find hourly flight availability from Ohio 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ohio to Porto as you normally would.

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 July 31, 2025.
Read through reviews of airlines operating flights from Ohio to Porto, such as Delta, KLM, and Air France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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 Ohio to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Ohio?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Porto from Ohio.

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

    $583 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Lufthansa and TAP AIR PORTUGAL, with prices starting from $615 and $632, respectively.

  • What are the most popular routes from Ohio to Porto?

    When deciding which route to take from Ohio to Porto consider Cincinnati Cinci./N. Kentucky - Porto, Cleveland Hopkins Intl - Porto or Pittsburgh - Porto as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ohio 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 Ohio to Porto?

    Currently, January is the cheapest month in which you can book a flight from Ohio to Porto (average of $523). Flying from Ohio to Porto in June is currently the most expensive (average of $1,033). 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Coimbra

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Alternative routes for Ohio to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ohio to Porto

Discover the top 4 airlines that operate flights from Ohio 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$590Average$1,101FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$613Average$842FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$701Average$1,139FlexibilityNo cancel feeOn-time69%
DeltaCheapest$728Average$988FlexibilityNo cancel feeOn-timeN/A

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