IST - OPO

Find Cheap Flights from Istanbul to Porto

1 adult
1 adult, Economy

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

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

Cheap Flights from Istanbul to Porto (IST-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Istanbul to Porto 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 return flight deals from Istanbul to Porto

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IST-OPO
1927 mimulti-stop
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OPO-IST
1927 mimulti-stop
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Expert advice

Expert advice for your flight from Istanbul to Porto

 
Snippets provided in this section are AI-generated based on a summarisation 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.
Airports
IST

Expect lengthy waits at security during busy times. Arrive early and wear comfortable shoes for the long walk to gates.

Read more about ISTby Jenna Scatena
OPO

Take the Purple Line E metro for a cost-effective, scenic 35-minute ride to Porto city centre from the airport.

Read more about OPOby Duncan Madden
Our travel experts
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 Istanbul to Porto flights

Get data-powered insights and trends into flights from Istanbul to Porto 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 Istanbul to Porto?

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

Your flight ticket price will generally be cheaper if you fly to Porto on a Wednesday and more expensive on a Sunday. On your return trip to Istanbul, you should consider flying back on a Wednesday, and avoid Tuesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Istanbul Airport to Porto, 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 Istanbul Airport to Porto is November, where tickets cost £318 (return) on average. On the other hand, the most expensive months are April and August, where the average cost of round-trip tickets is £792 and £545 respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £388, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Istanbul Airport to Porto, 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 Istanbul Airport to Porto, you should book around 10 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.


Good to know - Cheap tickets from Istanbul to Porto

Low seasonApril
Best time to beat the crowds but there is an average 88% increase in price.
Most popular time to fly (29% more expensive on average)

When to book flights from Istanbul to Porto

Are your dates flexible? Find out the best times to travel from Istanbul to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 Istanbul to Porto flights

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

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

  • Which airline alliances offer flights from Istanbul to Porto?

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

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

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

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

    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 Istanbul to Porto.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Porto with an airline and back to Istanbul with another airline.

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

    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 Porto from Istanbul 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 Istanbul Airport to Porto

  • Looking for a cheap flight from Porto to Istanbul? 25% of our users found flights on this route for Porto or less round-trip.

Prefer to fly direct from Istanbul to Porto?

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

Direct departures

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

Direct returns

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

Reviews of the top airline flying from Istanbul to Porto

 
See real verified KAYAK customer reviews for airlines flying from Istanbul to Porto. 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 Istanbul to Porto? 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
7.4Food
7.3Boarding
7.3Comfort
7.7Crew
7.4Entertainment
Airline reviews

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

6.0 GoodAnonymous, Jul 2025IST - ORD
Read more Turkish Airlines reviews

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

I hate to have pay for my first luggage 165$ when I did my search on Kayak with 2 luggages .I don't plan to use kayak in the future and go with Turkish airlines directly

It was great except my luggage was C severely damaged over i picked it up off the carousel in London. . A suit case that had been used once does no longer have the use of the extendable arm as it’s broken

About an hour delay but we made it to Chicago. I feel that the smaller connecting flights are the ones that cause the delays on the bigger planes that fly international.

Amazing trip! No delays, no broken or lost luggage, and amazing food.

The food we received during the flight was excellent. The service was very friendly. Definitely the best value for the money when flying across the Atlantic.

I use a wheelchair for mobility. Both in my flight from Houston and back to Houston from Istanbul, the Turkish airline staff asked that I claim my wheelchair at the luggage area. On arrival to Istanbul, parts of the wheelchair were in disarray at that time I raised no objection however upon claiming my wheelchair in Houston parts where outright missing. In both occasions, upon arriving in Houston and arriving in Istanbul, I asked multiple times why am made to pick up my wheelchair in the baggage claim rather than at the jet bridge. Getting the wheelchair at the jet bridge minimizes the probability of loosing parts because they can be hopefully reclaimed on the spot. I was told in Houston that a manager turned down my request to claim the wheelchair at the jet bridge in Houston. This is extremely frustrating because a wheelchair is not a set of clean underwear or a toothbrush- this is the way I move. A Turkish Arline staff took my complaint at the luggage claim area in Houston but as of the writing of this review the only contact I have received from the airline is because I initiated a claim rather than her as she told me she would.

The security at the airport was excellent. The one criticism is the boarding process just before entering the plane. There were only 2 boarding lines and there were no barriers thus leading to a mass rush to enter the plane. I suggest that they board by rows, eight or ten rows at a time to prevent the mass rush to enter the plane. Otherwise, I would highly recommend Turkish Airlines

I liked everything: the work of the flight attendants, the work of the crew, the frequency on the plane and in the toilet.

This flight was in the air when the national power outage happened on 28 April 2025 in Spain and Portugal. As a result Lisbon airport was closed and the flight was diverted to Porto. There were no phones, internet or ATMs working and the Turkish Airlines ground crew in Porto were trying to find alternative transport to Lisbon (by bus). This did not materialise until late in the evening. The Turkish Airlines ground crew suggested that passengers may find their own way of getting to Lisbon. That in itself is a failure of Turkish Airlines, but understandable as there were no means of communication. The Turkish Airlines ground crew also said that any expenses insured for travel to Lisbon will be refunded by the Airline through their website. Unfortunately, I could find no way to travel back to Lisbon other than to hitch hike with an Uber driver. Because no systems were available and no credit card payment possible I paid the driver 140 Euros in cash with no receipt as systems were down. I arrived at my Lisbon hotel at 23:30 (flight was scheduled to land at 12:30). Upon contacting Turkish Airlines for compensation they are not willing to do anything as I do not have an invoice for my expenses. They do not even consider the 10 hours of delay and inactivity on their part as a reason to provide any sort of curtesy towards me. I find their behaviour appalling.

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

Information on your arrival and departure airports

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