$745+ Cheap flights from Cincinnati (CVG) to Porto (OPO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — OPO
Sep 12 — Sep 191
Round-trip
1 adult, Economy
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Find cheap flights from Cincinnati to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Cincinnati to Porto
Cheapest
Best
Last-minute
Cheapest flights from Cincinnati to PortoExplore 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 August 13, 2026.
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 August 13, 2026.
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Wed 12/91:15 pm -
1 stop15h 15m
Fri 12/1112:35 pm -
2 stops16h 21m
Deal found 8/8![United Airlines logo]()
$745
This Delta deal was found by Cheapflights users on 8/12. 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.
Tue 10/2710:10 pm -
1 stop19h 50m
Thu 11/55:55 am -
1 stop15h 14m
Deal found 8/12![Delta logo]()
$803
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:55 am -
1 stop20h 35m
Thu 11/56:00 am -
2 stops18h 18m
Deal found 8/12![United Airlines logo]()
$805
This Gotogate deal was found by Cheapflights users on 8/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:55 pm -
1 stop12h 05m
Wed 10/216:00 am -
2 stops19h 30m
Deal found 8/9![Multiple Airlines logo]()
$825
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:55 pm -
1 stop12h 05m
Sun 11/16:00 am -
2 stops22h 57m
Deal found 8/12![Multiple Airlines logo]()
$850
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:30 am -
2 stops20h 30m
Sun 11/16:00 am -
2 stops15h 57m
Deal found 8/12![United Airlines logo]()
$858
Best flights from Cincinnati to PortoDiscover carefully curated flight deals from Cincinnati to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
Discover carefully curated flight deals from Cincinnati to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Wed 12/91:15 pm -
1 stop15h 15m
Fri 12/1112:35 pm -
2 stops16h 21m
Deal found 8/8![United Airlines logo]()
$745
This Delta deal was found by Cheapflights users on 8/8. 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.
Sun 9/206:30 pm -
1 stop16h 00m
Tue 10/65:00 am -
2 stops19h 13m
Deal found 8/8![Delta logo]()
$897
This United deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:48 am -
2 stops38h 12m
Wed 9/2311:20 am -
2 stops36h 46m
Deal found 8/9![Multiple Airlines logo]()
$930
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:55 am -
1 stop20h 35m
Thu 11/56:00 am -
2 stops18h 18m
Deal found 8/10![United Airlines logo]()
$805
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:30 am -
2 stops20h 30m
Sun 11/16:00 am -
2 stops15h 57m
Deal found 8/10![United Airlines logo]()
$858
This Delta deal was found by Cheapflights users on 8/8. 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.
Fri 9/254:00 pm -
2 stops18h 25m
Fri 10/25:00 am -
2 stops18h 42m
Deal found 8/8![Delta logo]()
$965
Last-minute flights from Cincinnati to PortoDiscover last-minute flight deals from Cincinnati to Porto. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to Porto. Data last updated August 13, 2026 and is based on user searches.
This United deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:48 am -
2 stops38h 12m
Wed 9/2311:20 am -
2 stops36h 46m
Deal found 8/9![Multiple Airlines logo]()
$930
This Justfly.com deal was found by Cheapflights users on 8/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:08 pm -
2 stops31h 52m
Wed 9/2311:20 am -
2 stops33h 06m
Deal found 8/9![Air Canada logo]()
$935
This KAYAK deal was found by Cheapflights users on 8/8. 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.
Sat 9/193:52 pm -
2 stops39h 08m
Mon 9/287:20 pm -
2 stops29h 56m
Deal found 8/8![SWISS logo]()
$959
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/194:58 pm -
1 stop32h 57m
Mon 9/286:00 am -
2 stops22h 19m
Deal found 8/12![United Airlines logo]()
$966
This Delta deal was found by Cheapflights users on 8/8. 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.
Sun 9/206:17 am -
2 stops28h 13m
Tue 10/65:00 am -
2 stops15h 14m
Deal found 8/8![Delta logo]()
$897
This Air France deal was found by Cheapflights users on 8/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:00 pm -
2 stops15h 25m
Fri 10/25:55 am -
2 stops17h 47m
Deal found 8/11![Air France logo]()
$963
This Delta deal was found by Cheapflights users on 8/8. 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.
Fri 9/254:00 pm -
2 stops18h 25m
Fri 10/25:00 am -
2 stops18h 42m
Deal found 8/8![Delta logo]()
$965
Find 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 August 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $745 (United Airlines) |
Popular in | May |
Cheapest in | April |
Average price | $940 |
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 August 13, 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
Cheapest round-trip
Quickest round-trip
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Wed 12/9
1:15 pm-9:30 am
1 stop15h 15m
Porto
Fri 12/11
12:35 pm-11:56 pm
2 stops16h 21m
$745
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Tue 10/27
8:55 am-9:30 am
1 stop20h 35m
Porto
Thu 11/5
6:00 am-7:18 pm
2 stops18h 18m
$805
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Wed 10/21
5:30 am-7:00 am
2 stops20h 30m
Porto
Sun 11/1
6:00 am-4:57 pm
2 stops15h 57m
$858
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Sun 9/20
6:30 pm-3:30 pm
1 stop16h 00m
Porto
Tue 10/6
5:00 am-7:13 pm
2 stops19h 13m
$897
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Tue 9/15
11:48 am-7:00 am
2 stops38h 12m
Porto
Wed 9/23
11:20 am-7:06 pm
2 stops36h 46m
$930
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Fri 9/25
4:00 pm-3:25 pm
2 stops18h 25m
Porto
Fri 10/2
5:00 am-6:42 pm
2 stops18h 42m
$965
Sorted by cheapest first
Compare providers for flights from Cincinnati to Porto
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cincinnati to Porto in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Cincinnati-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cincinnati-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cincinnati-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Cincinnati-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cincinnati-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
CVG-OPO
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.
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 August 13, 2026.
See what other customers who have flown with United Airlines from Cincinnati to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro
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Cincinnati and Porto flights
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Top airline flying from Cincinnati to Porto
Discover the top airline 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 August 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$827 | FlexibilityNo cancel fee | On-time69% |