IST - OPO

Find cheap flights from Istanbul to Porto

1 adult
1 adult, Economy, 0 bags

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
Multiple Airlines
Thu 1/29
IST - OPO • multi-stop
Cheapest one-way
Multiple Airlines
Thu 1/29
IST - OPO • multi-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Expect lengthy waits at Istanbul's security checks.
Take the Purple Line E metro for a scenic ride to Porto.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
November
Cheapest • 25% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Expert advice
Flight 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 round-trip 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 round-trip flight deals from Istanbul to Porto

Multiple Airlines Logo
IST
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OPO
1927 mimulti-stop
Multiple Airlines Logo
OPO
-
IST
1927 mimulti-stop
Multiple Airlines
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.

When flying from Istanbul to Porto, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to Istanbul, you’ll find the best rates on Sundays and the most expensive ones on Saturdays.

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 $438 (return) on average. On the other hand, the most expensive months are April and August, where the average cost of round-trip tickets is $1,064 and $976 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $449 on average.

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Expert advice

Expert advice for your flight from Istanbul to Porto

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jenna Scatena

Jenna Scatena

Expert on IST

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 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

Good to know

Low seasonNovember
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 12% lower 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 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 Istanbul to Porto flights

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

    A passport is required to fly from Istanbul to Porto.

  • 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 nonstop 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 travelers 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 round-trip ticket. You could then fly to Porto with an airline and back to Istanbul with another airline. Booking your flights between Istanbul and OPO 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 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? 25% of our users found flights on this route for $612 or less one-way.

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

Turkish Airlines

Turkish Airlines

Tuesday

Turkish Airlines

Turkish Airlines

Wednesday

Turkish Airlines

Turkish Airlines

Thursday

Turkish Airlines

Turkish Airlines

Friday

Turkish Airlines

Turkish Airlines

Saturday

Turkish Airlines

Turkish Airlines

Sunday

Turkish Airlines

Turkish Airlines

See more direct flights

Direct returns

Porto to Istanbul

Monday

Turkish Airlines

Turkish Airlines

Tuesday

Turkish Airlines

Turkish Airlines

Wednesday

Turkish Airlines

Turkish Airlines

Thursday

Turkish Airlines

Turkish Airlines

Friday

Turkish Airlines

Turkish Airlines

Saturday

Turkish Airlines

Turkish Airlines

Sunday

Turkish Airlines

Turkish Airlines

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 4208 reviews
7.3Comfort
7.4Entertainment
7.3Boarding
7.4Food
7.8Crew
Airline reviews

The crew on this flight provided exceptional business class service to me.

8.0 ExcellentMichael, Jan 2026
IST - IAD
Read more Turkish Airlines reviews

The crew on this flight provided exceptional business class service to me.

The staff at the boarding or the rudest uninformative and no English whatsoever they’re very rude as if they are envious of you travelling I don’t understand how could someone would be this rude and this out of touch and cold

You charged me for luggage although the airline does not- you charged me for seat when customers can pick their own seat at checkout in I travel to Europe slot and I will not use kayak again

It would be great if the flight attendants could inform people travelling with small children that at take off and landing the children should drink liquid or chew/swallow something so their ears don’t hurt. Also, Emirates serves the food to the children first. Really good idea. Best of all would be to put all children in the same area.

I had issue with my boarding pass. When I arrived in London Gatwick Airport. My e-ticket wasn't scanning and had to do a lot of back and forth with Air Transit I order to board my flight, which I almost missed as a result of this.

Requested food options were always finished. Supplied food items were good but of course not the desired choices.

The airport staff never announced that boarding has started. Both at iad or Islamabad or Istanbul.

Very bad experience with turkish airline tk 0001. Very uncomfortable seats and food ran out and crew was not helpful

The airline could improve its business class seats and privacy in line with its competitors.

The fact that my flight was cancelled and made wait for 14 Fing hours to booka flightto a neighboring country.... never again

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

Information on your arrival and departure airports

Istanbul (IST)
Porto (OPO)