Cheap flights from Athens International to Porto

Travelers and cabin class

Compare Athens International 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 Athens International to Porto

Looking for a cheap last-minute deal or the best round-trip flight from Athens International to Porto? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Athens International to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Athens International to Porto flights are currently cheapest in October.

Direct flights from Athens International to Porto

Athens International to Porto: Alternative routes

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

Athens to Porto: Flight information

The things to know before you go.
Cheapest flight foundC$213
Cheapest month to flyOctober
Average flight time4 hrs, 10 mins
Most popular airlineAegean Airlines
Average flights per week6

Finding cheap flights from Athens International to Porto: Frequently asked questions

The best price we found for a round-trip flight from Athens International to Porto is C$213. 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.
4 hours and 10 minutes is the average flight time from Athens International to Porto.
Aegean Airlines and Volotea fly direct from Athens International to Porto.
There are 6 flights per week flying from Athens International to Porto, as of March 2025.
The cheapest month to fly from Athens International to Porto is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Athens International Airport to Porto Airport on Monday, October 20, 2025.
Yes – the average flight time is 4 hours and 10 minutes.
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, easyJet and Aegean Airlines offer the cheapest flight tickets to Porto.

Traveling from Eleftherios Venizelos International Airport (ATH) to Porto Airport (OPO): what you need to know

  • 4 hours 10 minutes is the average duration of a direct flight from Eleftherios Venizelos International Airport to Porto Airport. Porto is 2 hours behind Athens and operates on the UTC+0 timezone.

  • During popular months such as August, you'll want to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during a high season in general.

  • Aegean Airlines offers direct flights from Eleftherios Venizelos International Airport to Porto Airport. Book with this popular airline, and get ready to see the sights in Porto — and maybe even more of Portugal if your schedule allows.

  • We make it a piece of cake to get a flight with a stopover. To see the options for flights from Eleftherios Venizelos International Airport to Porto Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to explore the city of your choice. Popular stopovers between ATH and OPO are:

    • Zurich Airport

    • Paris Orly Airport

    • Palese Airport

  • To find out whether you need a visa to enter Portugal, check with your carrier and the local embassy or consulate. They'll give you all the necessary information, including other paperwork you may need after booking your cheap ticket from ATH to OPO.

How to find the cheapest flights from Eleftherios Venizelos International Airport (ATH) to Porto Airport (OPO)

  • The lowest price we've seen for a one-way ticket from Eleftherios Venizelos International Airport to Porto Airport is C$99. For a return flight on this route, the best price is C$213. Depending on the availability and when you book, these fares could change.

  • Book 3 months before flying. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap flight tickets from ATH to OPO.

  • Organize your trip for November. That's the cheapest month for flight tickets from Eleftherios Venizelos International Airport to Porto Airport. If you're flexible on when you fly, try out the 'Whole month' tool to find the lowest airfare across each month.

  • Log into your online account or use the app to set up a Price Alert. We'll get in touch right away if there's a better deal on this route. It's easy to do, and it'll save you from checking for cheap flight tickets from ATH to OPO every day.

  • Tailor your trip using filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Eleftherios Venizelos International Airport to Porto Airport.

Handy information about Eleftherios Venizelos International Airport (ATH)

  • Located around 40 kilometres from central Athens, Eleftherios Venizelos International Airport can be reached in approximately 37 minutes by car (depending on traffic). The journey by public transport takes roughly 59 minutes.

  • Want a convenient hotel close to ATH? If you're on an early flight from Eleftherios Venizelos International Airport to Porto Airport, these stays will have you sleeping moments from your departure gate:

Arriving at Porto Airport (OPO)

  • If you have a late flight from Eleftherios Venizelos International Airport to Porto Airport, nothing tops the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and resting not long after at one of these hotels near OPO:

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to central Porto takes about 21 minutes by car. It's approximately 16 kilometres away. Discover what options are available, such as cabs, car rentals or ride-sharing services.

  • If you're taking public transport, expect a journey time of roughly 49 minutes.

When to fly to Porto Airport (OPO)

  • It's time to work out your trip dates for your flight from Eleftherios Venizelos International Airport to Porto Airport. August is the busiest month to visit Porto. If you prefer a more peaceful vibe, go in February.

  • The warmest month in Porto is August, with temperatures ranging between 14ºC and 32ºC. Book your flights from Eleftherios Venizelos International Airport to Porto Airport in this month if you like this kind of weather.

  • January sees average temperatures of between 3ºC and 14ºC. Search for cheap flight tickets from ATH to OPO sometime then if you want to travel when it's cooler.

More about Porto

Complete your Porto trip with hotels and a car rental

  • You've locked in your cheap ticket to Porto Airport — next on the list is finding a great place to stay, and maybe even a set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in Porto.

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