Skyscanner home

657 € Cheap Flights from Cincinnati Northern Kentucky to Porto

Compare Cincinnati Northern Kentucky to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

Book the best Porto fare with no extra fees

Flight deals from Cincinnati Northern Kentucky to Porto

Looking for a cheap last-minute deal or the best return flight from Cincinnati Northern Kentucky Airport to Porto Airport? If you want to travel next month, return fares start from 718 €. Find the lowest prices on one-way and return tickets right here.
Porto.657 € per passenger.Departing Tue, 2 Feb, returning Thu, 18 Feb.Return flight with Air France.Outbound indirect flight with Air France, departs from Cincinnati Northern Kentucky on Tue, 2 Feb, arriving in Porto.Inbound indirect flight with Air France, departs from Porto on Thu, 18 Feb, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 657 €, select.
Porto.658 € per passenger.Departing Sun, 20 Sep, returning Tue, 6 Oct.Return flight with Allegiant Air and Iberia.Outbound indirect flight with Allegiant Air, departs from Cincinnati Northern Kentucky on Sun, 20 Sep, arriving in Porto.Inbound indirect flight with Iberia, departs from Porto on Tue, 6 Oct, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 658 €, select.
Porto.661 € per passenger.Departing Wed, 27 Jan, returning Wed, 3 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Cincinnati Northern Kentucky on Wed, 27 Jan, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Wed, 3 Feb, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 661 €, select.
Porto.711 € per passenger.Departing Thu, 8 Oct, returning Wed, 14 Oct.Return flight with Allegiant Air and Iberia.Outbound indirect flight with Allegiant Air, departs from Cincinnati Northern Kentucky on Thu, 8 Oct, arriving in Porto.Inbound indirect flight with Iberia, departs from Porto on Wed, 14 Oct, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 711 €, select.
Porto.718 € per passenger.Departing Sat, 12 Sep, returning Sat, 19 Sep.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from Cincinnati Northern Kentucky on Sat, 12 Sep, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Sat, 19 Sep, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 718 €, select.
Porto.740 € per passenger.Departing Thu, 24 Dec, returning Thu, 31 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Cincinnati Northern Kentucky on Thu, 24 Dec, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Thu, 31 Dec, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 740 €, select.
Porto.741 € per passenger.Departing Thu, 27 Aug, returning Wed, 2 Sep.Return flight with Allegiant Air and Ryanair.Outbound indirect flight with Allegiant Air, departs from Cincinnati Northern Kentucky on Thu, 27 Aug, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Wed, 2 Sep, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 741 €, select.
Porto.762 € per passenger.Departing Sat, 13 Mar, returning Sat, 20 Mar.Return flight with United.Outbound indirect flight with United, departs from Cincinnati Northern Kentucky on Sat, 13 Mar, arriving in Porto.Inbound indirect flight with United, departs from Porto on Sat, 20 Mar, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 762 €, select.
Porto.805 € per passenger.Departing Sun, 23 Aug, returning Mon, 31 Aug.Return flight with Allegiant Air and Ryanair.Outbound indirect flight with Allegiant Air, departs from Cincinnati Northern Kentucky on Sun, 23 Aug, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Mon, 31 Aug, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 805 €, select.
Porto.943 € per passenger.Departing Thu, 24 Dec, returning Fri, 1 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Cincinnati Northern Kentucky on Thu, 24 Dec, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Fri, 1 Jan, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 943 €, select.
Porto.981 € per passenger.Departing Tue, 1 Jun, returning Tue, 15 Jun.Return flight with United.Outbound indirect flight with United, departs from Cincinnati Northern Kentucky on Tue, 1 Jun, arriving in Porto.Inbound indirect flight with United, departs from Porto on Tue, 15 Jun, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 981 €, select.
Porto.1.498 € per passenger.Departing Fri, 15 Jan, returning Sat, 23 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Cincinnati Northern Kentucky on Fri, 15 Jan, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Sat, 23 Jan, arriving in Cincinnati Northern Kentucky.Price includes taxes and charges.From 1.498 €, select.

Find the cheapest month to fly from Cincinnati Northern Kentucky to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cincinnati Northern Kentucky to Porto flights are currently cheapest in February.
Aug
from 805 €
Sep
from 718 €
Oct
from 711 €
Nov
Find prices
Dec
from 740 €
Jan
from 1.498 €
Feb
from 657 €
Mar
from 762 €
Apr
Find prices
May
Find prices
Jun
from 981 €
Jul
Find prices

Cincinnati Northern Kentucky to Porto: Alternative routes

Compare routes from Cincinnati Northern Kentucky to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Porto

12km from central Porto
ClosestCheapest
from 657 €
Search flights

Vila Real

76km from central Porto
Search flights

Viseu G. Lobato

81km from central Porto
Search flights

Cincinnati to Porto: Flight information

The things to know before you go.
Cheapest flight found657 €
Cheapest month to flyFebruary

Finding cheap flights from Cincinnati Northern Kentucky to Porto: Frequently asked questions

The best price we found for a return flight from Cincinnati Northern Kentucky to Porto is 657 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Cincinnati Northern Kentucky to Porto. But we found flights with one or more stops from 657 €.
As of August 2026, there are no flights flying from Cincinnati Northern Kentucky to Porto.
The cheapest month to fly from Cincinnati Northern Kentucky to Porto is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cincinnati Northern Kentucky Airport to Porto Airport on Tuesday, 2 February 2027.
No airlines currently offer direct flights between Cincinnati Northern Kentucky Airport and Porto Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Air France offers the cheapest flight tickets to Porto.

Flying from Cincinnati Northern Kentucky Airport (CVG) to Porto Airport (OPO): what you need to know

  • Porto's timezone is UTC+0, making Porto five hours ahead of Cincinnati.

  • Arrive at the airport on time so you don't miss your CVG to OPO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • Travelling during a peak time like July? Major public holidays and other high seasons can result in longer lines at security. Be extra cautious and get there up to four hours before international flights and two hours before a domestic departure.

  • We make it a breeze to book a flight with a stopover. To see all your options for tickets from Cincinnati Northern Kentucky Airport to Porto Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to explore your chosen city. Top stopovers between CVG and OPO include:

    • New York John F. Kennedy Airport

    • New York Newark Airport

    • Toronto Pearson International Airport

How to find the cheapest flights from Cincinnati Northern Kentucky Airport (CVG) to Porto Airport (OPO)

  • The cheapest price we've found for a one-way Cincinnati Northern Kentucky Airport to Porto Airport flight is 240 €. A round-trip ticket is currently 657 €. Depending on the availability when you book, these fares may change.

  • Don't wait until the last moment. You're more likely to get cheap tickets from CVG to OPO if you book early. Airlines often have some terrific early bird discounts.

  • If you're willing to be flexible with your travel plans, use the 'Whole month' search tool. It'll give you the lowest price in every month when looking for a flight from Cincinnati Northern Kentucky Airport to Porto Airport.

  • There's no need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll let you know as soon as there's a better deal on cheap flights from CVG to OPO.

  • Secure the perfect flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Cincinnati Northern Kentucky Airport to Porto Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Cincinnati Northern Kentucky Airport (CVG)

  • Of all flights departing from Cincinnati Northern Kentucky Airport, 76% arrive on time at their destination.

  • To reach Cincinnati Northern Kentucky Airport from central Cincinnati, it'll take about 25 minutes if you're planning to drive. Of course, this depends on traffic conditions. It's approximately 21 kilometres from the airport to the city centre.

  • Planning to take public transport? You can expect a journey time of around 1 hour.

Arriving at Porto Airport (OPO)

  • The last thing you need is a lengthy trip to your hotel if you're getting in late on a Cincinnati Northern Kentucky Airport to Porto Airport flight. Stay at one of these accommodation options near OPO instead:

  • Go where the road takes you with a Porto Airport rental car. Pick up your wheels from Klass Wagen, Goldcar or Drive & Go and find adventure across Porto and beyond.

  • To get the lowest price, reserve your vehicle from Porto Airport about three weeks ahead.

When to fly to Porto Airport (OPO)

  • The quietest month for a flight from Cincinnati Northern Kentucky Airport to Porto Airport is March, while August is the most popular. Pick the ideal time to visit Porto based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Porto is August, with temperatures ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your flights from Cincinnati Northern Kentucky Airport to Porto Airport in this month if this is the type of weather you like.

  • Look for cheap tickets from CVG to OPO in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 3ºC (37ºF) and 14ºC (57ºF) on average.

Explore more of Portugal

  • Lisbon is just one of the many cities in Portugal waiting to be explored after you've experienced Porto. Around 274 kilometres away to the south, its top attractions include Pasteis de Belém, belém and Real Mosteiro de Santa Maria de Belém.

  • Around 274 kilometres south of Porto, Amadora is another essential stop in Portugal. Get a taste of what this destination has to offer at Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.

Plan the rest of your trip from Cincinnati to Porto

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.