Cheap flights from Porto to Istanbul

Compare Porto to Istanbul flight deals

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

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Flight deals from Porto to Istanbul

Looking for a cheap last-minute deal or the best round-trip flight from Porto Airport to Istanbul Airport? If you want to travel next month, round-trip fares start from $200. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Porto to Istanbul

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

Direct flights from Porto to Istanbul

Porto to Istanbul: Alternative routes

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

Porto to Istanbul: Flight information

The things to know before you go.
Cheapest flight found$187
Cheapest month to flyJune
Average flight time4 hrs, 40 mins
Most popular airlineTurkish Airlines
Average flights per week73

Finding cheap flights from Porto to Istanbul: Frequently asked questions

The best price we found for a round-trip flight from Porto to Istanbul is $186. 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 40 minutes is the average flight time from Porto to Istanbul.
Turkish Airlines, IndiGo and TAP Air Portugal fly direct from Porto to Istanbul.
There are 86 flights per week flying from Porto to Istanbul, as of April 2026.
The cheapest month to fly from Porto to Istanbul is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to Istanbul Airport on Thursday, June 11, 2026.
Yes – the average flight time is 4 hours and 40 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 Istanbul 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 Istanbul is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Ryanair and Turkish Airlines offer the cheapest flight tickets to Istanbul.

Traveling from Porto Airport (OPO) to Istanbul Ataturk Airport (IST): what you need to know

  • Around 4 hours 40 minutes is how long you can expect to be in the air on a direct flight from Porto Airport to Istanbul Ataturk Airport.

  • Istanbul is three hours ahead of Porto and follows the UTC+3 timezone.

  • Take your pick of 18 weekly Porto Airport to Istanbul Ataturk Airport flights. The 10:45 departure with Turkish Airlines is the earliest flight you can take. Turkish Airlines operates the last service of the day at 17:25.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your OPO to IST flight.

  • Flying during a peak time like August? Public holidays and other popular periods can result in longer lines at airport checkpoints. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • Turkish Airlines is your gateway to discovering Istanbul (and perhaps some other exciting corners of Türkiye (Turkey)!). Check out the direct flights from Porto Airport to Istanbul Ataturk Airport offered by this popular airline.

  • Turkish Airlines is the airline with the highest passenger demand for this route.

  • We make it a cinch to book a flight with a stopover. To see your options for tickets from Porto Airport to Istanbul Ataturk Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to visit the city of your choice. Some great stopovers between OPO and IST include:

    • Barcelona-El Prat Airport

    • Geneve Airport

    • Milano Malpensa Airport

How to find the cheapest flights from Porto Airport (OPO) to Istanbul Ataturk Airport (IST)

  • $82 is the best price for a one-way Porto Airport to Istanbul Ataturk Airport flight. A return flight starts from $186. These fares may change based on demand.

  • To get cheap tickets from OPO to IST, book your trip one month ahead of your departure.

  • Organize your trip for December. That's the cheapest month for flights from Porto Airport to Istanbul Ataturk Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the lowest price across each month.

  • Getting your hands on cheap flights from OPO to IST is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when there's a better deal.

  • Lock in the ideal flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Porto Airport to Istanbul Ataturk Airport, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Porto Airport (OPO)

  • 74.49% of flights that depart Porto Airport touch down at their destination on schedule.

  • To reach Porto Airport from central Porto, it'll take about 20 minutes if you're going by car. This depends on traffic though. It's approximately 16 kilometers from the airport to the city center.

  • Expect a trip time of about 50 minutes when using public transport.

  • Catching an early flight from Porto Airport to Istanbul Ataturk Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these stays near OPO:

Arriving at Istanbul Ataturk Airport (IST)

  • If you have a late Porto Airport to Istanbul Ataturk Airport flight, nothing tops the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and snoozing not long after at one of these options near IST:

  • Pick up an Istanbul Ataturk Airport rental car and explore Istanbul and beyond with your own wheels. Hit, Avec car rentals and Eren Rent a Car are well-known companies you can book with here.

  • To secure the lowest price, reserve your ride from Istanbul Ataturk Airport around two weeks before your trip.

Getting from Istanbul Ataturk Airport (IST) to central Istanbul

  • From Istanbul Ataturk Airport, Istanbul is approximately 48 kilometers away. It takes around 50 minutes to reach the center by car.

  • It'll take around 1 hour 45 minutes if you're using public transport.

When to fly to Istanbul Ataturk Airport (IST)

  • April is the most popular month for flights from Porto Airport to Istanbul Ataturk Airport. For smaller crowds, travel to Istanbul in February.

  • Book your flight from Porto Airport to Istanbul Ataturk Airport for August if you want to go to Istanbul during its warmest month. You can expect temperatures of between 20ºC (68ºF) and 30ºC (86ºF).

  • January has average temperatures of between 2ºC (36ºF) and 11ºC (52ºF). Search for cheap tickets from OPO to IST sometime then if you like traveling in cooler conditions.

Explore more of Türkiye (Turkey)

  • You've visited Istanbul, now it's time to discover more of Türkiye (Turkey). Travel about 354 kilometers east to Ankara to tick off its must-visit sights. From Museum of Anatolian Civilizations to Kocatepe Mosque (Kocatepe Camii) and Genclik Park, you've got a jam-packed schedule ahead.

  • Around 322 kilometers south-west of Istanbul, Izmir is another favorite stop in Türkiye (Turkey). Experience major highlights starting with Kordonboyu, Kadifekale Castle and Konak Square.

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