Opt for Super 6E for wider seats and priority boarding, ideal for longer flights.
Use online check-in to secure preferred seats and avoid airport rush, ensuring a smoother experience.
Cheap flights from Porto (OPO) to Istanbul (IST)
OPO — IST
Jan 6 — Jan 131
1 adult, Economy
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Find cheap flights from Porto to Istanbul with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Porto to Istanbul are usually found in January or February, booked 57 days in advance, depart on a Sunday or Tuesday and return on a Monday
Find flight deals from Porto to Istanbul
Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 7, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Popular in | August |
Cheapest in | January |
Average price | $466 |
Good round-trip deal | $527 or less |
Good one-way deal | $413 or less |
Compare providers for flights from Porto to Istanbul
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Istanbul in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Porto-Istanbul Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-Istanbul Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto-Istanbul Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Porto-Istanbul Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Istanbul Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Porto to Istanbul
Have a flexible travel schedule? Discover the best time to fly to Istanbul from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Porto to Istanbul Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Porto to Istanbul Airport?
Use this chart to determine the optimal time to book a round-trip flight from Porto to Istanbul. Price data was last updated on December 5, 2025.
To ensure you get the cheapest price possible for a flight from Porto to Istanbul Airport, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Porto to Istanbul Airport?
Currently, November is the cheapest month in which you can book a flight from Porto to Istanbul Airport (average of $167). Flying from Porto to Istanbul Airport in June is currently the most expensive (average of $382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from OPO to IST?
Find hourly flight availability from Porto to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 7, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Istanbul Airport as you normally would.
How often are flights from Porto to Istanbul delayed?
About 8% of weekly flights between Porto and Istanbul have experienced delays in the past year, with the average delay time being 134 minutes.
What is the most punctual flight time for Porto to Istanbul flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Porto to Istanbul flights?
Over the last year, Turkish Airlines have had the lowest number of delays on this route, with just 8% of flights being delayed.
The best insider tips for Porto to Istanbul Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Porto to Istanbul Airport trip
Reviews of airlines servicing Istanbul
Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated December 7, 2025.
See what other customers who have flown with Turkish Airlines from Porto to Istanbul Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Overall
7.3
Boarding
7.3
Comfort
7.3
Crew
7.8
Food
7.4
Reviews
1 / 20
6.0
GoodChandra,Nov 2025
ATL - IST
Entertainment
7.4
Overall
7.3
Boarding
7.3
Comfort
7.3
Crew
7.8
Food
7.4
Reviews
1 / 20
6.0
GoodChandra,Nov 2025
ATL - IST
Related info for your journey
Find useful and relevant information for your journey from Porto to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Istanbul Airport?
Book flights to Istanbul Airport if you plan to visit one of these locationsYalova
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Complete your trip to Istanbul by adding a car rental and/or hotel reservation to your travel itinerary.
Top airline flying from Porto to Istanbul
Discover the top airline that operate flights from Porto to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 7, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$366 | Average$451 | FlexibilityNo cancel fee | On-time77% |