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£91 Cheap Flights from Cologne (CGN) to Istanbul (IST)

View £91 flight on Sat, 19 Sept 2026Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Istanbul Airport (IST)

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Cheap Flights from Cologne (CGN) to Istanbul (IST)

Prices were available within the past 7 days and start at £91 for one-way flights and £155 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, 3 Sept - Sat, 3 Oct
CGN
Cologne
IST
Istanbul
£155 Return, found 2 days ago
£155
Return
found 2 days ago
Select Lufthansa flight, departing Thu, 3 Sept from Cologne to Istanbul, returning Sat, 3 Oct, priced at £155 found 2 days ago
Turkish Airlines
Thu, 10 Sept - Mon, 5 Oct
CGN
Cologne
IST
Istanbul
£162 Return, found 2 days ago
£162
Return
found 2 days ago
Select Turkish Airlines flight, departing Thu, 10 Sept from Cologne to Istanbul, returning Mon, 5 Oct, priced at £162 found 2 days ago
Aegean
Fri, 25 Sept - Sun, 27 Sept
CGN
Cologne
IST
Istanbul
£518 Return, found 2 days ago
£518
Return
found 2 days ago
Select Aegean flight, departing Fri, 25 Sept from Cologne to Istanbul, returning Sun, 27 Sept, priced at £518 found 2 days ago

Find the cheapest month to fly from Cologne (CGN) to Istanbul (IST)

September is typically the cheapest month to fly

From £92 - £123 per traveller.

Frequently asked questions

How much does a flight from Cologne (CGN-Cologne - Bonn) to Istanbul (IST) cost?
You can find one-way and return flights from MAN to GDZ with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when CGN to IST ticket fares go up or down.
What is the cheapest month to fly from Cologne (CGN) to Istanbul (IST)?
The cheapest months to fly from Cologne (CGN) to Istanbul (IST) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Cologne (CGN-Cologne - Bonn) to Istanbul (IST)?
Only one airline offers direct flights from Cologne - Bonn (CGN) to Istanbul Airport (IST). Turkish Airlines operates 20 direct flights from Cologne - Bonn to Istanbul Airport every week.
How do I find cheap flights from Cologne (CGN-Cologne - Bonn) to Istanbul (IST)?
To find a cheap flight from Cologne (CGN-Cologne - Bonn) to Istanbul (IST), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Cologne (CGN-Cologne - Bonn) to Istanbul (IST)?
The best time to fly from Cologne (CGN) to Istanbul (IST) is typically September. This month offers a great balance—prices are reasonable, with an average of around £155 for a return flight, and you'll have plenty of flight options since it's a popular time to travel. If you're flexible, September gives you both affordable fares and excellent flight schedules to work with.
What is the earliest flight from Cologne (CGN-Cologne - Bonn) to Istanbul (IST)?
The earliest flight from Cologne - Bonn (CGN) to Istanbul Airport (IST) typically departs around 12:15 AM local time. This flight is operated by Pegasus Airlines and is a seasonal service, active in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Cologne (CGN-Cologne - Bonn) to Istanbul (IST)?
A non-stop flight from Cologne - Bonn (CGN) to Istanbul (IST) typically takes around 3 hours 18 minutes. This route covers a distance of approximately 1,971 kilometers. If you opt for a flight with one stop, the journey usually takes longer, around 5 hours. Flights with two or more stops can extend your travel time significantly, often taking around 24 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.
Can you fly business or first class from Cologne (CGN) to Istanbul (IST)?
Select the "Business class" and "First class" filters when looking for Cologne (CGN) to Istanbul (IST) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Cologne (CGN-Cologne - Bonn) to Istanbul (IST) flight with Expedia?
It's easy to earn miles on a Cologne (CGN-Cologne - Bonn) to Istanbul (IST) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Istanbul (IST) from Cologne (CGN)?
If you're planning to travel to Istanbul from Cologne - Bonn (CGN), you can fly directly into Istanbul Airport (IST). Some flights may connect through major hubs like Franz Josef Strauss Intl. (MUC), Vienna Intl. (VIE), or Zürich (ZRH) before reaching Istanbul. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Cologne (CGN-Cologne - Bonn) to Istanbul (IST) at the last minute?
Typically, booking a last minute flight from Cologne (CGN-Cologne - Bonn) to Istanbul (IST) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Cologne (CGN-Cologne - Bonn) to Istanbul (IST) flight and hotel package?
Securing a Cologne (CGN-Cologne - Bonn) to Istanbul (IST) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cologne (CGN) to Istanbul (IST)?
If you booked your Cologne (CGN) to Istanbul (IST) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cologne - Bonn
Destination airport
Istanbul
Roundtrip price
£154
Distance
1959 km
Average flight time
4 hours 15 mins

Book with confidence

Compare flights from Cologne to Istanbul easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Cologne to Istanbul. Operating between them flights per day, 8 airlines cover the route. And fly direct, getting you to Istanbul in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Cologne - Bonn to Istanbul.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Cologne - Bonn (CGN) to Istanbul (IST)

The easiest way to view the best deals on flights from Cologne to Istanbul today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Cologne - Bonn to Istanbul start at just £155 and range up to £518.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Cologne and Istanbul
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Cologne to Istanbul flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Cologne - Bonn to Istanbul for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Cologne to Istanbul easily and book with confidence

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*Available to Expedia members.