$337+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — OPO
Sep 29 — Oct 61
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
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Best
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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 30, 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 30, 2026.
This Delta deal was found by Cheapflights users on 8/29. 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 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 8/29![Delta logo]()
$705
This United Airlines deal was found by Cheapflights users on 8/27. 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 10/2711:44 am -
1 stop17h 46m
Thu 11/56:00 am -
2 stops16h 25m
Deal found 8/27![United Airlines logo]()
$707
This United Airlines deal was found by Cheapflights users on 8/27. 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 12/712:00 pm -
1 stop16h 30m
Fri 12/116:00 am -
2 stops21h 21m
Deal found 8/27![United Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 10/215:30 am -
2 stops20h 30m
Sun 11/16:00 am -
2 stops16h 25m
Deal found 8/29![United Airlines logo]()
$760
This Iberia deal was found by Cheapflights users on 8/29. 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.
Fri 11/138:50 am -
2 stops17h 50m
Tue 11/178:20 am -
2 stops15h 58m
Deal found 8/29![Multiple Airlines logo]()
$769
This Delta deal was found by Cheapflights users on 8/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:00 am -
1 stop20h 15m
Tue 11/175:55 am -
1 stop15h 14m
Deal found 8/29![Delta logo]()
$785
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Fri 11/139:50 am -
1 stop18h 40m
Tue 11/176:00 am -
2 stops19h 47m
Deal found 8/29![United Airlines logo]()
$787
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 30, 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 30, 2026.
This United Airlines deal was found by Cheapflights users on 8/29. 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 10/2711:10 am -
2 stops18h 20m
Thu 11/56:00 am -
2 stops18h 18m
Deal found 8/29![United Airlines logo]()
$711
This FlightHub deal was found by Cheapflights users on 8/27. 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 10/219:00 am -
2 stops17h 00m
Sun 11/16:00 am -
2 stops22h 42m
Deal found 8/27![Multiple Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 8/25. 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 12/74:10 pm -
2 stops12h 20m
Fri 12/116:00 am -
2 stops16h 04m
Deal found 8/25![United Airlines logo]()
$746
Last-minute flights from Cincinnati to PortoDiscover last-minute flight deals from Cincinnati to Porto. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to Porto. Data last updated August 30, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/1811:48 am -
2 stops14h 52m
Mon 9/218:20 am -
2 stops17h 45m
Deal found 8/27![American Airlines logo]()
$1,141
This Ovago deal was found by Cheapflights users on 8/27. 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.
Fri 9/1810:22 am -
2 stops31h 23m
Mon 9/219:00 am -
1 stop19h 47m
Deal found 8/27![Lufthansa logo]()
$1,273
This Justfly.com deal was found by Cheapflights users on 8/27. 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.
Sat 9/193:52 pm -
2 stops45h 23m
Mon 9/287:20 pm -
2 stops29h 56m
Deal found 8/27![SWISS logo]()
$1,046
This KAYAK deal was found by Cheapflights users on 8/25. 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 9/197:52 pm -
2 stops34h 23m
Mon 9/287:20 pm -
2 stops29h 56m
Deal found 8/25![Multiple Airlines logo]()
$1,086
This Delta deal was found by Cheapflights users on 8/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:30 pm -
1 stop15h 55m
Fri 10/29:25 am -
2 stops18h 31m
Deal found 8/29![Delta logo]()
$1,136
This Air Canada deal was found by Cheapflights users on 8/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:00 am -
2 stops21h 15m
Fri 10/26:00 am -
2 stops20h 23m
Deal found 8/29![Air Canada logo]()
$1,150
This Delta deal was found by Cheapflights users on 8/28. 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 9/257:00 pm -
2 stops15h 25m
Fri 10/211:25 am -
2 stops16h 48m
Deal found 8/28![Delta logo]()
$1,117
One-way flights from Cincinnati to PortoSearch for one-way flight options from Cincinnati to Porto. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Cincinnati to Porto. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:59 pm -
3 stops59h 36m
Deal found 8/26![Multiple Airlines logo]()
$337
This Expedia deal was found by Cheapflights users on 8/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:49 am -
2 stops27h 11m
Deal found 8/26![Iberia logo]()
$457
This United Airlines deal was found by Cheapflights users on 8/26. 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 11/25:50 am -
1 stop22h 40m
Deal found 8/26![United Airlines logo]()
$632
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 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $705 (Delta) |
One-way from | $337 (Kiwi.com) |
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 7,457,451 searches. Data last updated August 30, 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
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Tue 10/27
11:10 am-9:30 am
2 stops18h 20m
Porto
Thu 11/5
6:00 am-7:18 pm
2 stops18h 18m
$711
Quickest round-trip
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Mon 12/7
4:10 pm-9:30 am
2 stops12h 20m
Porto
Fri 12/11
6:00 am-5:04 pm
2 stops16h 04m
$746
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Wed 10/21
9:00 am-7:00 am
2 stops17h 00m
Porto
Sun 11/1
6:00 am-11:42 pm
2 stops22h 42m
$755
Cheapest one-way
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Mon 11/2
2:59 pm-7:35 am
3 stops59h 36m
$337
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Mon 11/2
11:49 am-8:00 pm
2 stops27h 11m
$457
Quickest one-way
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Mon 11/2
5:50 am-9:30 am
1 stop22h 40m
$632
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 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 |
- 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.
Cheapflights Insights
Everything you need to know about your flight from Cincinnati to Porto
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 30, 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
Crew
8.1
Food
6.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Crew
8.1
Food
6.7
Entertainment
7.1
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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Other flights to Porto
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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 7,457,451 searches. Data last updated August 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$850 | FlexibilityNo cancel fee | On-time69% |