$88 Cheap Flights from Cologne (CGN) to Istanbul (IST)

View $88 flight on Thu, Jan 15, 2026Opens in a new window

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

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Cheap Flights from Cologne to Istanbul (CGN-IST)

Prices were available within the past 7 days and start at $88 for one-way flights and $165 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Pegasus Airlines
Wed, Jul 2 - Fri, Jul 11
CGN
Cologne
SAW
Istanbul
$165 Roundtrip, found 5 days ago
$165
Roundtrip
found 5 days ago
Select Pegasus Airlines flight, departing Wed, Jul 2 from Cologne to Istanbul, returning Fri, Jul 11, priced at $165 found 5 days ago
Pegasus Airlines
Thu, Jul 3 - Fri, Jul 4
CGN
Cologne
SAW
Istanbul
$166 Roundtrip, found 4 days ago
$166
Roundtrip
found 4 days ago
Select Pegasus Airlines flight, departing Thu, Jul 3 from Cologne to Istanbul, returning Fri, Jul 4, priced at $166 found 4 days ago
Pegasus Airlines
Wed, Jul 2 - Fri, Jul 11
CGN
Cologne
SAW
Istanbul
$171 Roundtrip, found 5 days ago
$171
Roundtrip
found 5 days ago
Select Pegasus Airlines flight, departing Wed, Jul 2 from Cologne to Istanbul, returning Fri, Jul 11, priced at $171 found 5 days ago
Pegasus Airlines
Thu, Jul 3 - Sun, Jul 6
CGN
Cologne
SAW
Istanbul
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select Pegasus Airlines flight, departing Thu, Jul 3 from Cologne to Istanbul, returning Sun, Jul 6, priced at $177 found 1 day ago
Pegasus Airlines
Tue, Dec 9 - Wed, Dec 17
CGN
Cologne
SAW
Istanbul
$178 Roundtrip, found 6 days ago
$178
Roundtrip
found 6 days ago
Select Pegasus Airlines flight, departing Tue, Dec 9 from Cologne to Istanbul, returning Wed, Dec 17, priced at $178 found 6 days ago
Pegasus Airlines
Wed, Jul 2 - Sun, Jul 6
CGN
Cologne
SAW
Istanbul
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select Pegasus Airlines flight, departing Wed, Jul 2 from Cologne to Istanbul, returning Sun, Jul 6, priced at $181 found 2 days ago
Pegasus Airlines
Thu, Jul 3 - Fri, Jul 4
CGN
Cologne
SAW
Istanbul
$183 Roundtrip, found 4 days ago
$183
Roundtrip
found 4 days ago
Select Pegasus Airlines flight, departing Thu, Jul 3 from Cologne to Istanbul, returning Fri, Jul 4, priced at $183 found 4 days ago
Turkish Airlines
Sat, Nov 29 - Sat, Dec 6
CGN
Cologne
IST
Istanbul
$225 Roundtrip, found 4 days ago
$225
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sat, Nov 29 from Cologne to Istanbul, returning Sat, Dec 6, priced at $225 found 4 days ago
Lufthansa
Sat, Nov 29 - Sat, Dec 6
CGN
Cologne
IST
Istanbul
$276 Roundtrip, found 4 days ago
$276
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sat, Nov 29 from Cologne to Istanbul, returning Sat, Dec 6, priced at $276 found 4 days ago
British Airways
Tue, Jul 8 - Sat, Jul 12
CGN
Cologne
SAW
Istanbul
$607 Roundtrip, found 5 days ago
$607
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Jul 8 from Cologne to Istanbul, returning Sat, Jul 12, priced at $607 found 5 days ago

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

March is typically the cheapest month to fly

From $65 - $327 per traveler.

Graph displaying average flight prices per month

Flights from Cologne (CGN) to Istanbul (SAW)
Origin airport
Cologne - Bonn
Destination airport
Sabiha Gokcen Intl.
Airlines serving
British Airways, Lufthansa, Turkish Airlines
Roundtrip price
$165
Distance
1263 mi
Average flight time
4 hours 20 mins

Cologne to Istanbul Flights

The cheapest times to fly from Cologne to Istanbul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cologne to Istanbul are during the month of July. You can find some of the cheapest flights from Cologne to Istanbul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cologne to Istanbul

Sunday is one of the best days to book for cheap flights from Cologne to Istanbul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cologne to Istanbul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cologne to Istanbul in 2025. You can also book with separate airlines for your outbound and return journeys, from $88 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cologne to Istanbul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cologne to Istanbul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cologne - Bonn Airport (CGN) to Istanbul (IST) cost?
Discover the latest flight deals from CGN to IST by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CGN to IST?
Snap up a low fare by booking your direct flight from CGN to IST in September. You can find a one-way Turkish Airlines flight for $135 leaving on September 10 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on June 30 2025 and remains unchanged.
What is the cheapest airline that flies from CGN to IST?
Fly from CGN to IST with Turkish Airlines. This carrier currently has the cheapest one-way fare for this route, starting from $135. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CGN on September 10 2025. Prices were last updated on June 30 2025 and have not changed since.
How many flights per day from Cologne - Bonn Airport (CGN) to Istanbul (IST)?
You'll need to hop on a flight with a layover when traveling from Cologne - Bonn Airport (CGN) to Istanbul (IST). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from CGN to IST?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cologne - Bonn Airport (CGN) to Istanbul (IST)?
Book a flight from Cologne - Bonn Airport (CGN) to Istanbul (IST) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cologne - Bonn Airport (CGN) to Istanbul (IST) last-minute?
Last-minute fares from CGN to IST are generally more expensive. For the cheapest rates, start searching for flights well in advance. That being said, if you're flexible with your travel plans, you may land a cheap ticket right before your trip.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Istanbul (IST)?
Typically, you can modify or cancel your CGN to IST flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more details, head to our Customer Service portal.

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*Available to One Key members.