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

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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 October.

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.

Cincinnati to Porto: Flight information

The things to know before you go.
Cheapest flight foundR 4,979
Cheapest month to flyOctober

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 R 10,075. 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 R 10,075.
As of September 2025, there are no flights flying from Cincinnati Northern Kentucky to Porto.
The cheapest month to fly from Cincinnati Northern Kentucky to Porto is usually November.
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 Monday, 10 November 2025.
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, United offers the cheapest flight tickets to Porto.

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

  • The timezone in Porto is UTC+0, which is four hours ahead of Cincinnati.

  • Your CVG to OPO flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Be prepared for longer queues during popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures will give you ample time for security and boarding.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Cincinnati/Northern Kentucky Airport to Porto Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to tour the city of your choice. Some great stopovers between CVG and OPO include:

    • John F. Kennedy International Airport

    • Pearson International Airport

    • Newark Liberty International Airport

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

  • The cheapest price we've seen for a one-way Cincinnati/Northern Kentucky Airport to Porto Airport flight is R 4,979. A round-trip plane ticket is currently R 10,075. Depending on the availability and when you book, these fares can change.

  • To pick up cheap tickets from CVG to OPO, book as early as you can. Airlines typically offer the most competitive fares when flights are first made available.

  • If you're willing to be flexible with your travel plans, try using the 'Whole month' tool. It'll give you the lowest price across each month when searching for your flight from Cincinnati/Northern Kentucky Airport to Porto Airport.

  • Stay on top of deals for cheap flights from CVG to OPO by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Tailor your flights using filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Cincinnati/Northern Kentucky Airport to Porto Airport.

Handy information about Cincinnati/Northern Kentucky Airport (CVG)

  • Of all flights leaving Cincinnati/Northern Kentucky Airport, 77.0% arrive as scheduled at their destination.

  • Cincinnati/Northern Kentucky Airport is around 21 kilometres from central Cincinnati. If you're driving, ride-sharing or catching a cab from the centre, it'll take 20 minutes or so to get there, depending on the traffic.

  • Taking public transport? Expect a trip time of around 40 minutes.

Arriving at Porto Airport (OPO)

  • Consider staying in a hotel close to OPO if you're taking a late Cincinnati/Northern Kentucky Airport to Porto Airport flight. Settle into one of these accommodation options and avoid the hassle of a long transfer:

  • Grab a Porto Airport rental car and discover Porto and beyond with your own wheels. Klass Wagen, Goldcar and Drive & Go are leading providers to choose from here.

  • Reserving your ride from Porto Airport about three weeks ahead gives you the best shot at securing a great deal.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport is roughly 16 kilometres from central Porto. The drive time takes about 20 minutes.

  • When travelling on public transport, expect a journey of roughly 50 minutes.

When to fly to Porto Airport (OPO)

  • August is the busiest month for flights from Cincinnati/Northern Kentucky Airport to Porto Airport. To escape the crowds, visit Porto in January.

  • Lock in your flight from Cincinnati/Northern Kentucky Airport to Porto Airport for August if you'd like to visit Porto during its warmest month. Expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from CVG to OPO in January. Average temperatures are between 3ºC (37ºF) and 14ºC (57ºF) then.

Explore more of Portugal

  • Lisbon is just one of the many cities in Portugal waiting to be discovered once you've taken in the sights of Porto. Around 274 kilometres away to the south, top sights here include Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • If you're looking to explore another great destination in Portugal, consider Amadora, about 274 kilometres south of Porto. Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.