OPO - IST

Find cheap flights from Porto to Istanbul

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Istanbul Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Istanbul, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Istanbul, as well as popular online travel agencies
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Expert advice
Booking Insights
Flights Deals

Cheap Flights from Porto to Istanbul (OPO-IST)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Porto to Istanbul that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to Istanbul

Multiple Airlines Logo
OPO-IST
1927 mimulti-stop
Multiple Airlines Logo
IST-OPO
1927 mimulti-stop
Multiple Airlines
Find Deal
Expert advice

Expert advice for your flight from Porto to Istanbul

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
IndiGo

Consider 6E Prime for seat selection, checked luggage, snacks, and priority boarding at a discounted rate.


Pre-purchase food and drink online for better rates and avoid onboard payment hassle.

Read more about IndiGoby Robert Schrader
Turkish Airlines

Sign up for Miles & Smiles for free inflight messaging on Turkish Airlines flights.


Take advantage of Touristanbul for free city tours during long layovers in Istanbul.

Read more about Turkish Airlinesby Gabriel Leigh
Airports
OPO

Porto Airport's modern metro is a cost-effective way to reach the city, with trains every 20 minutes and a journey time of 35 minutes.

Read more about OPOby Duncan Madden
IST

The Havaist shuttles offer a comfortable and affordable ride from IST to central Istanbul locations like Taksim Square and Sultanahmet.

Read more about ISTby Jenna Scatena
Our travel experts
Robert Schrader

Robert Schrader

Expert on IndiGo

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on Turkish Airlines

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Jenna Scatena

Jenna Scatena

Expert on IST

Jenna Scatena

Jenna Scatena

Journalist and Travel Writer, Jenna Scatena is an award-winning travel writer with a love for sharing stories and exploring new places, especially by Vespa. Though she's from San Francisco, she has spent a significant chunk of her vacation days over the last decade eating her way through Texas and sleeping in hotels around the world—especially in California, the Middle East, and Europe.

Read more
Duncan Madden

Duncan Madden

Expert on OPO

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Booking Insights

KAYAK's insights & trends for Porto to Istanbul flights

Get data-powered insights and trends into flights from Porto to Istanbul to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Porto to Istanbul?

The average price of all round-trip flights from Porto to Istanbul Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Istanbul on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Porto to Istanbul. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Porto to Istanbul Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Porto to Istanbul Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Porto to Istanbul Airport is January, where tickets cost $386 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $582 and $546 respectively.

Can I save money by flying with a layover from Porto to Istanbul Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $579, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Porto to Istanbul Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Porto to Istanbul Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Porto to Istanbul Airport, you should book around 3 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Find deals

Good to know

Low seasonJuly
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly with an average 8% increase in price.

When to book flights from Porto to Istanbul

Are your dates flexible? Find out the best times to travel from Porto to Istanbul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Porto to Istanbul flights

  • Do I need a passport to fly between Porto and Istanbul?

    Yes

  • Which aircraft models fly most regularly from Porto to Istanbul?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Porto to Istanbul flight route.

  • Which airline alliances offer flights from Porto to Istanbul?

    Star Alliance is the only airline alliance operating flights between Porto and Istanbul.

  • On which days can I fly direct from Porto to Istanbul?

    There are nonstop flights from Porto to Istanbul on a daily basis.

  • How does KAYAK find such low prices on flights from Porto to Istanbul?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to Istanbul.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Istanbul?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul from Porto is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto to Istanbul?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul with an airline and back to Porto with another airline. Booking your flights between Porto and IST can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Istanbul?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Porto to Istanbul Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $388 or less one-way and $805 or less round-trip.

Prefer to fly direct from Porto to Istanbul?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Porto to Istanbul.
Find which airlines fly direct from Porto Airport to Istanbul Airport, which days they fly and book direct flights.

Direct departures

Porto to Istanbul

Monday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Tuesday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Wednesday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Thursday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Friday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Saturday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Sunday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

See more direct flights

Direct returns

Istanbul to Porto

Monday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Tuesday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Wednesday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Thursday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Friday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Saturday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

Sunday

IndiGo, TAP AIR PORTUGAL, Thai Airways, +1 more

IndiGo, TAP AIR PORTUGAL, +2 more

See more direct flights

Reviews of the top airline flying from Porto to Istanbul

 
See real verified KAYAK customer reviews for airlines flying from Porto to Istanbul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Porto to Istanbul? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Turkish AirlinesOverall score based on 3928 reviews
7.4Entertainment
7.4Food
7.7Crew
7.3Boarding
7.3Comfort
Airline reviews

The best airline food being served for business travellers. Excellent food.

10.0 ExcellentAye, Jul 2025ZAG - IST
Read more Turkish Airlines reviews

The best airline food being served for business travellers. Excellent food.

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

The business class seats are designed for someone taller than I am, so my feet were dangling (the footrest was just a smidge too low). Which caused problems with my sciatic nerve and made for a long uncomfortable flight.

Overall great airline that still provides two suitcases, has a huge hub and crew goes above and beyond to assist you. Boarding took a lot of time as there were only 2 people checking in. Also, in Istanbul, taxing took almost 30 min.

Very good overall.... apart from the cost of extra check ed in luggage where they charge £17 per kg, and no option to just buy an extra bag allowance (at least on the route I took)

Amazing! Big line at Check in was diminished in 10 minutes. Boarding was quick and efficient. Service and food great. Only minor point: seats could be a little broader and for me being small, something to put your feet on during the flight would be great.

Except for spending an extra day in Istanbul due to late departure from Athens on Saturday and missing the connection flight TK0044 to Cape Town and again arriving 45 min late on Monday in Cape Town, it was all good.

The best food I’ve ever been served on an airplane. The security at the gate was frustrating as was the heavy editing of the films and television shows offered.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

It was an old airline with the old configuration of business class seats. Not really what we signed up for for the longest leg of the trip. Disappointing.

Everything you need to know for your flight from Porto to Istanbul

Information on your arrival and departure airports

Porto (OPO)
Istanbul (IST)

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