$380+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — OPO
Oct 26 — Nov 21
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
One-way
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 September 26, 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 September 26, 2026.
This KLM deal was found by Cheapflights users on 9/21. 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 10/2011:45 am -
1 stop17h 45m
Tue 11/105:55 am -
1 stop15h 14m
Deal found 9/21![Multiple Airlines logo]()
$570
This Iberia deal was found by Cheapflights users on 9/21. 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.
Tue 10/271:58 pm -
2 stops17h 47m
Thu 11/58:20 am -
2 stops19h 20m
Deal found 9/21![Multiple Airlines logo]()
$571
This Delta deal was found by Cheapflights users on 9/21. 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 10/206:14 pm -
1 stop11h 16m
Tue 11/105:00 am -
2 stops23h 12m
Deal found 9/21![Delta logo]()
$580
This Delta deal was found by Cheapflights users on 9/23. 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 10/271:44 pm -
2 stops16h 51m
Thu 11/510:15 am -
1 stop15h 32m
Deal found 9/23![Delta logo]()
$584
This United Airlines deal was found by Cheapflights users on 9/23. 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 12/47:15 am -
2 stops21h 15m
Fri 12/1112:35 pm -
2 stops16h 17m
Deal found 9/23![United Airlines logo]()
$620
This Delta deal was found by Cheapflights users on 9/23. 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 11/47:05 am -
1 stop20h 10m
Mon 11/911:15 am -
2 stops18h 22m
Deal found 9/23![Delta logo]()
$630
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/2111:48 am -
1 stop16h 57m
Sun 11/16:00 am -
2 stops22h 42m
Deal found 9/21![United Airlines logo]()
$631
This Iberia deal was found by Cheapflights users on 9/21. 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 10/212:37 pm -
2 stops16h 08m
Sun 11/14:40 pm -
2 stops33h 06m
Deal found 9/21![Iberia logo]()
$632
This BusinessClass deal was found by Cheapflights users on 9/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:00 pm -
1 stop11h 30m
Fri 12/1112:35 pm -
1 stop27h 50m
Deal found 9/22![Lufthansa logo]()
$643
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 September 26, 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 September 26, 2026.
This KLM deal was found by Cheapflights users on 9/21. 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 10/2011:45 am -
1 stop17h 45m
Tue 11/105:55 am -
1 stop15h 14m
Deal found 9/21![Multiple Airlines logo]()
$570
This Delta deal was found by Cheapflights users on 9/21. 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 10/2711:38 am -
2 stops18h 57m
Thu 11/510:15 am -
1 stop15h 32m
Deal found 9/21![Delta logo]()
$584
This United Airlines deal was found by Cheapflights users on 9/23. 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 12/47:15 am -
2 stops21h 15m
Fri 12/1112:35 pm -
2 stops16h 17m
Deal found 9/23![United Airlines logo]()
$620
This BusinessClass deal was found by Cheapflights users on 9/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:00 pm -
1 stop11h 30m
Fri 12/1112:35 pm -
1 stop27h 50m
Deal found 9/22![Lufthansa logo]()
$643
This KLM deal was found by Cheapflights users on 9/21. 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 10/2710:10 pm -
1 stop19h 50m
Thu 11/510:15 am -
1 stop15h 32m
Deal found 9/21![Multiple Airlines logo]()
$579
This Delta deal was found by Cheapflights users on 9/23. 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 12/47:00 am -
1 stop20h 15m
Fri 12/115:55 am -
2 stops22h 32m
Deal found 9/23![Delta logo]()
$630
This United Airlines deal was found by Cheapflights users on 9/23. 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 11/77:44 pm -
2 stops32h 46m
Sat 11/1412:30 pm -
2 stops33h 55m
Deal found 9/23![United Airlines logo]()
$679
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/1910:50 am -
2 stops39h 10m
Mon 10/2612:30 pm -
2 stops24h 50m
Deal found 9/21![United Airlines logo]()
$685
This United Airlines deal was found by Cheapflights users on 9/25. 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 11/92:56 pm -
2 stops13h 34m
Tue 11/246:00 am -
2 stops16h 25m
Deal found 9/25![United Airlines logo]()
$706
Last-minute flights from Cincinnati to PortoDiscover last-minute flight deals from Cincinnati to Porto. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to Porto. Data last updated September 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/22. 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 9/3010:00 am -
1 stop18h 45m
Wed 10/712:35 pm -
1 stop15h 44m
Deal found 9/22![United Airlines logo]()
$683
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/196:00 am -
1 stop22h 45m
Mon 10/2612:30 pm -
2 stops27h 12m
Deal found 9/21![United Airlines logo]()
$682
This KLM deal was found by Cheapflights users on 9/21. 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 10/2011:45 am -
1 stop17h 45m
Tue 11/105:55 am -
1 stop15h 14m
Deal found 9/21![Multiple Airlines logo]()
$570
This Delta deal was found by Cheapflights users on 9/21. 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 10/206:14 pm -
1 stop11h 16m
Tue 11/105:00 am -
2 stops23h 12m
Deal found 9/21![Delta logo]()
$580
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/2111:48 am -
1 stop16h 57m
Sun 11/16:00 am -
2 stops22h 42m
Deal found 9/21![United Airlines logo]()
$631
This Iberia deal was found by Cheapflights users on 9/21. 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 10/212:37 pm -
2 stops16h 08m
Sun 11/14:40 pm -
2 stops33h 06m
Deal found 9/21![Iberia logo]()
$632
This Iberia deal was found by Cheapflights users on 9/21. 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.
Tue 10/271:58 pm -
2 stops17h 47m
Thu 11/58:20 am -
2 stops19h 20m
Deal found 9/21![Multiple Airlines logo]()
$571
This Delta deal was found by Cheapflights users on 9/23. 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 10/271:44 pm -
2 stops16h 51m
Thu 11/510:15 am -
1 stop15h 32m
Deal found 9/23![Delta logo]()
$584
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 September 26, 2026.
Search for one-way flight options from Cincinnati to Porto. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Wed 11/412:36 pm -
3 stops48h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Thu 11/55:18 pm -
3 stops49h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 9/24. 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 11/48:05 am -
2 stops19h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Thu 11/58:55 am -
1 stop19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$513
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 September 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $570 (KLM) |
One-way from | $380 (Kiwi.com) |
Popular in | May |
Cheapest in | February |
Average price | $1,128 |
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 September 26, 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
Thu 11/5
7:15 am-11:30 am
2 stops47h 15m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$439
Quickest round-trip
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Wed 11/4
8:05 am-8:15 am
2 stops19h 10m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$463
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Tue 10/20
11:45 am-10:30 am
1 stop17h 45m
Porto
Tue 11/10
5:55 am-4:09 pm
1 stop15h 14m
$570
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Tue 10/27
10:10 pm-10:00 pm
1 stop19h 50m
Porto
Thu 11/5
10:15 am-8:47 pm
1 stop15h 32m
$579
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Tue 10/27
11:38 am-10:35 am
2 stops18h 57m
Porto
Thu 11/5
10:15 am-8:47 pm
1 stop15h 32m
$584
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Fri 12/4
7:15 am-9:30 am
2 stops21h 15m
Porto
Fri 12/11
12:35 pm-11:52 pm
2 stops16h 17m
$620
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Fri 12/4
7:00 am-8:15 am
1 stop20h 15m
Porto
Fri 12/11
5:55 am-11:27 pm
2 stops22h 32m
$630
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Fri 12/4
5:00 pm-9:30 am
1 stop11h 30m
Porto
Fri 12/11
12:35 pm-11:25 am
1 stop27h 50m
$643
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Sat 11/7
7:44 pm-9:30 am
2 stops32h 46m
Porto
Sat 11/14
12:30 pm-5:25 pm
2 stops33h 55m
$679
CincinnatiPorto
CVG Cincinnati Cinci./N. Kentucky - OPO Porto
CVGOPO
Cincinnati Cinci./N. Kentucky
Mon 10/19
10:50 am-7:00 am
2 stops39h 10m
Porto
Mon 10/26
12:30 pm-9:20 am
2 stops24h 50m
$685
Showing 1-10 of 11 resultsSorted 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 September.
| 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 September 26, 2026.
See what other customers who have flown with Delta and 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.
Overall
7.8
Entertainment
7.8
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Entertainment
7.8
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Entertainment
7.8
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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
Browse other Cincinnati and Porto flight options. Last updated on September 26, 2026.
Other flights from Cincinnati
Browse through other flights departing from Cincinnati. Flights are based on user searches made on Cheapflights and were last updated on September 26, 2026.
Popular flight searches
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Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 26, 2026.
Top 2 airlines flying from Cincinnati to Porto
Discover the top 2 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 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$886 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$574 | Average$1,196 | FlexibilityNo cancel fee | On-timeN/A |